Relevant bibliographies by topics / Scrap metals

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Scrap metals'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Scrap metals"

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Baah, Owusu Panin Kwame. "Innovative Use of the Pointillism Technique for the Production of Scrap Metal Mural Art of Kofi Annan for Environmental Sustainability." Journal of Innovations in Science and Technology 1, no. 1 (April 27, 2023): 60–78. http://dx.doi.org/10.60129/jinces.v1i1.00523.

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Scrap metals have been an environmental nuisance blocking the pathways of water and leading to various forms of environmental pollution at Anloga in the Kumasi Metropolis of Ghana. This scrap metal art project was aimed at creatively reusing and re-purposing scrap metals from various construction, dump sites and households for the creation of a metal artwork as a step in reviving scrap metal art for environmental sustainability. Over the years, murals have been made using various techniques in painting and sculpture. The studio-based research design that employs the qualitative descriptive method was used for this project. The project adopted the concept of pointillism whereby tiny dots in various pure colours are used in creating an artwork that is appreciated when viewed from a distance. We replicated this concept by representing the dots with metal domes from scrap metals in producing an innovative commemorative metal mural of the former UN General Secretary, Kofi Annan. The researchers employed participant observation and used photographs to collect the data by carefully studying the various scrap metals that were available for the project and by utilizing most metal working techniques. It was very necessary to carry on this project to revive scrap metal art in Ghana which is gradually dying out. The study revealed that recycling and melting of metal scraps should be done in kilns and furnaces rather than in open hearth processes for best results. The study recommends the exploration of other methods of doming in the future for much efficiency. Also, the study recommends the exploration of other fine art techniques and media using various scrap metals for artistic production.
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Abdulsalam, S., A. D. Bajoga, and H. A. Dala. "Impact of Metals Scrap Yard on the Presence of some Heavy Metals Concentration within Gombe Metropolis, Gombe State, Nigeria, using Atomic Absorption Spectrometry." Nigerian Journal of Physics 33, no. 2 (June 30, 2024): 115–22. http://dx.doi.org/10.62292/njp.v33i2.2024.246.

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The Metal scrap yards play a crucial role in the recycling and reuse of metals, contributing significantly to the economy and conservation of natural resources. However, the processing and storage of metal scraps can lead to the release of heavy metals such as lead, chromium and cadmium, into the environment. The presence of heavy metals in metal scrap yards poses a significant risk to nearby communities, workers and the environment, also causing air and water pollution, soil contamination, and health problem. Study of impact of metals scrap yard on the presence some of some heavy metals in soil samples was done using Atomic Absorption Spectrometer (AAS). Top soil sample were collected from eight metals scrap yards and their corresponding control areas. One gram (1 g) each of the soil samples was digested and then heated slowly and steadily, the solution appears colorless. The samples were allowed to cool and ready for analysis. The result obtained was, the mean elemental concentration element was of the order ofMn (41.022±41.202)> Cu (4.416±4.274) >Pb (2.685±1.399) > Mg (0.500±10.122) > Cr (0.460±0.187) > Cd (0.125±0.027) > Co (0.04±0.000)> Ni (0.000±0.000). The comparison of the elemental concentration of the heavy metals of (Mn, Mg, Cu, Pd, Cr, Cd, Co and Ni) in the study area ware shows the metal scrap yard has impact in the presence of heavy metals in soil. In addition, the Contamination factor (CF), and Pollution load index (PLI) of each trace element in soil of the study area and their respective control area were all < 1 which implies that they all have low contamination factors, less polluted and low contaminated.
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Wędrychowicz, Maciej, Andrzej Piotrowicz, Tomasz Skrzekut, Piotr Noga, and Adam Bydalek. "Recovery of Non-Ferrous Metals from PCBs Scrap by Liquation from Lead." Materials 15, no. 6 (March 11, 2022): 2089. http://dx.doi.org/10.3390/ma15062089.

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This article presents the results of research on the recycling of non-ferrous metals from PCB scrap using melting in metallic lead. The idea of this process is to dissolve (transfer) metals from PCB scrap in lead, and then liquation them by cooling the lead-metals alloy. PCB scrap was crushed and then melted into liquid lead. The lead after process was then poured into the casting mold and its chemical composition was examined. Among the various metals in the PCB scrap, copper and tin in particular are dissolved in lead. The more scrap dissolved in lead, the higher the concentration of copper and tin in the alloy. The highest obtained concentration of copper in lead were about 2.2 wt.%, and for tin about 0.8 wt.%.
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Mysik, V. F. "Scrap processing - a look into the future." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information, no. 10 (November 9, 2018): 61–66. http://dx.doi.org/10.32339/0135-5910-2018-10-61-66.

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Saturation of depreciation scrap by non-ferrous metals and different nonmetallic materials complicates its utilization for steel smelting, particularly a quality one. For possible avoiding receipt of nonferrous metals into steel melt it is necessary to provide more careful scrap segregation by application of state-of-the-art scrap processing equipment.Main requirement to the steel scrap processing equipment formulated. It must provide uniformity of burden materials fraction content and separation of extraneousmaterials and nonferrous metals.Existing methods of scrap preparation, including different methods of crushing, packaging, separation and other considered. It was shown, that shredder aggregates are most perspective equipment for scrap refining from harmful impurities and its preparation to smelting. Shredder processing of scrap provides the smelting facilities by homogeneous burden of high bulk density.The presented material has a discussion character, aiming at attracting attention of specialists to the problem of scrap processing industry development.
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Wu, Liushun, Kunlong Liu, Haiqing Mei, Guangda Bao, Yun Zhou, and Haichuan Wang. "Thermodynamics Analysis and Pilot Study of Reusing Medium and High Alloy Steel Scrap Using Induction Melting and Electroslag Remelting Process." Metals 12, no. 6 (May 30, 2022): 944. http://dx.doi.org/10.3390/met12060944.

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The annual cumulative quantity of high and medium alloy steel scrap has exceeded 10 million tons. Using the traditional smelting process involving electric arc refining in a smelting furnace for these scraps causes high percentages of alloy losses, which decreases the value of the alloy steel scrap and poses environmental threats. Existing studies have rarely focused on separate smelting of the scrap and oxidation behaviors of the alloying elements. Therefore, this study proposes an induction melting and electroslag remelting scheme to process the scrap. Based on this scheme, the effects of the temperature, oxygen content, and element contents on the recovery percentages of the alloying elements were investigated using pilot experiment and thermodynamic analysis. The experimental results showed that the alloying elements (tungsten, chromium, nickel, molybdenum, and vanadium) exhibited recovery percentages of 97.36%, 94.62%, 97.63%, 95.09%, and 89.49%, respectively; furthermore, the impurity content did not increase during smelting. The thermodynamic analysis indicated that an increase in carbon content improved the oxidation resistance of the alloying elements except for nickel, whereas the increases in the contents of oxygen and alloying elements increase their oxidation. Steam partial pressure and air suction dramatically increase the concentrations of nitrogen, hydrogen and oxygen. This scheme is an alternative for smelting medium and high alloy steel scrap, and the thermodynamic analysis provides a theoretical understanding of the oxidation behaviors of the alloying elements in the steel scrap and the control of impurity.
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Hoffmann, James E. "Recovering precious metals from electronic scrap." JOM 44, no. 7 (July 1992): 43–48. http://dx.doi.org/10.1007/bf03222275.

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Garino, Robert J. "Scrap convention spotlights metals commodity markets." JOM 45, no. 11 (November 1993): 12–14. http://dx.doi.org/10.1007/bf03222479.

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Shao, Hui Ping, Tao Lin, Ji Luo, and Zhi Meng Guo. "Separation and Recycling Non-Magnetic Metals from the Shredded Automobiles Scrap with Magnetic Fluids." Advanced Materials Research 233-235 (May 2011): 470–75. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.470.

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It is important to separate the nonmagnetic metals from shredded automobiles scraps efficiently. The research relates in general to the separation of non-magnetic metals automatically on the basis of the different density of the magnetic fluids in a magnetic field. A water-based magnetic fluid was prepared with a chemical coprecipitation method by using ultrasonic in dispersing process. The magnetic field system was design and simulated by a finite element analysis software package, ANSYS 8.1. Separation tests were performed on the mixtures of aluminum, zinc, copper and lead with various scrap size and shape using the water-based magnetic fluids.
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EBILOMA, Innah Peter, and Nemile Victoria SHAIBU. "Assessment of Heavy Metal Residues in Hides of animals Singed with Tyres, and Public Health Implications Associated with such Practice in Lokoja Metropolis." International Journal of Latest Technology in Engineering, Management & Applied Science XII, no. IV (2023): 18–29. http://dx.doi.org/10.51583/ijltemas.2023.12403.

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The safety of food has been an issue of concern in developing countries like Nigeria where the processing method can pose some environmental health challenge. The use of scrap automobile tires to singe meat has been reported to possess some toxic materials that can pose health challenge to humans. Hence, this study was conducted to determine the concentration of heavy metals in meat singed with fire wood and scrap tires in Lokoja, Nigeria. Samples of cattle hides singed with firewood and scrap tires were collected from four (4) different abattoirs and analyzed for the concentration of Cu, Pb, Fe and Zn using Atomic Absorption Spectrophotometry. There was significant increase in the concentration of Cu, Zn and Pb of the cattle hides singed with firewood and scrap tires when compared to the unsinged. The concentration of heavy metals for firewood singed cattle hide is within recommended Maximum Permissible Levels (MPLs) of the European Commission Regulations while the concentration of scrap tires is above the recommended Maximum Permissible Levels (MPLs) of the European Commission Regulations for Cu, Zn and Fe. Though there was increase in the concentration of Fe it is within the recommended Maximum Permissible Levels. The presence of heavy metals concentration above the permissible levels in cattle hides singed with scrap tires makes it unsafe for human consumption hence safer method should be adopted by the abattoirs.
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BRISTOW, C. A., A. J. SIDERY, and H. SUTTON. "METAL ECONOMICS SCRAP RECLAMATION, SECONDARY METALS, AND SUBSTITUTE METALS." Journal of the American Society for Naval Engineers 64, no. 3 (March 18, 2009): 644–64. http://dx.doi.org/10.1111/j.1559-3584.1952.tb02994.x.

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Dissertations / Theses on the topic "Scrap metals"

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Yu, Hao. "Metal Recovery via Automated Sortation." Digital WPI, 2014. https://digitalcommons.wpi.edu/etd-dissertations/121.

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Each year, millions of tons of non-ferrous scrap metal are discarded in the US. This metal is wasted due to a lack of proper recovery methods. Recent developments in spectroscopic technology have made it possible to identify the waste composition of scrap metal in real-time. This has opened the door for high-speed automated metal sortation and recovery, especially for the recovery of high value precious metals, such as titanium, nickel, cobalt, molybdenum and tantalum. Automated sortation systems typically consist of three main phases: (i) Feeding of material, (ii) Composition identification, and (iii) Physical separation. Due to their low volume and industry fragmentation, high-strength precious metal chips usually come in the form of chips smaller than 10 mm. Therefore it is extremely difficult to feed metal chips individually into the sorting system. At CR3, a new feeding mechanism was invented and developed in order to provide single layer feeding of small metal chips. A laboratory-scale prototype was built and proven to be feasible, scalable and reliable. A model was developed to predict the output of feeding variables based on initial input parameters. An operation window of the process was also defined for various metal chip resources. These will be presented, reviewed and discussed in the following paper.
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Pietersen, Melanie. "The reconstruction of second-hand furniture and scrap metal : inspired by the architectural structures of deconstructivism." Thesis, Cape Peninsula University of Technology, 2010. http://hdl.handle.net/20.500.11838/1438.

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Thesis (BTech (Surface Design))Cape Peninsula University of Technology, 2010
The purpose of this research is to explore and create an understanding of how architectural structures. that adhere to deconstructivist design principles, can inspire the reconstruction of second-hand school fumiture and scrap metal. The planned pieces will continue to create an awareness of sustainability, by designing for reuse. These functional fumiture pieces of low tables and chairs will be handcrafted, appealing to a niche market, or specific spaces and they will act as expressions of contradiction. This research will act as an addition to a body of knowledge, where I will primarily focus on contradicting the traditional form and aesthetic of furniture design. I have decided to create these functional pieces to express a new possible direction of furniture design. The study context is a potential confrontational experience in that I want to challenge the conventional form and aesthetics of fumiture design. These pieces of fumiture will be placed in a niche market where they will exist as one-offs that are not produced for mass-consumption, as they will be individually hand-erafted. These days more and more people are attempting to live in a more sustainable manner by practicing to reduce our consumption of products and resources; reuse that which we have disposed of and forgotten as consumers and to recycle waste products and transform them into a feasible afterlife (Martin, 2010). The theory is focused on Sohaill Inayatullah's theory of "Futures Thinking", and this .theory is further supported by Victor Margolin's study of changing existing situations into preferred ones. The research further reflects on Jacques Derrida's theory of deconstruction, and this research is further supported by the theory of sustainability, by designing for reuse, with a focus on Ezio Manzini. Therefore, my research study is concerned with confronting and challenging the conformity that the form of furniture and its aesthetic adhere to.
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AMORIM, ALDO S. de. "Alternativas de reciclagem de lama de aciaria em concretos e argamassas." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10871.

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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Harris, Bonnie L. "Scrap Metal." Digital Commons at Loyola Marymount University and Loyola Law School, 2018. https://digitalcommons.lmu.edu/etd/508.

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Delport, Hendrikus Mattheus Wessels. "The development of a DRI process for small scale EAF-based steel mills." Thesis, Stellenbosch : Stellenbosch University, 2010. http://hdl.handle.net/10019.1/17442.

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Thesis (MScEng) --University of Stellenbosch, 2010.
ENGLISH ABSTRACT: This thesis deals with the development of a new process for the production of Direct Reduced Iron (DRI), intended for use specifically by small scale Electric Arc Furnace (EAF) based steel mills, who require small volumes of DRI. The term development as used here is taken to include such aspects as conceptual design, theoretical verification and initial practical testing. The rise of EAF steelmaking brought about the metamorphosis of steel scrap from a waste product into a valuable raw material. Scrap prices rose steeply during the period 1995 to 2009 compelling EAF steelmakers, wishing to have more control over the cost of their input material, to seek for scrap supplements or alternatives. DRI has become an accepted and sought after supplement, or even complete alternative, to steel scrap. Adding DRI to an EAF charge has a range of advantages, including the dilution of tramp elements and possible cost benefits, but it does have negative effects. These include the lowering of the scrap to liquid metal yield and an increase in power consumed. The effect of charging DRI to a small EAF is quantified. The maximum DRI that may be added to the burden whilst still maintaining the present steelmaking volume, is shown to be as high as 50% if charged continuously, and the maximum price payable for DRI, is shown to be approximately 80% of base grade scrap price. Finally other requirements unique to small scale EAF operators are considered in order to prepare a schedule of requirements for a DRI plant specifically for small scale EAF steel mills. A review of published information on existing DRI production technology, processes and plants is undertaken is establish the fit of existing processes to the requirements set. Initially the thermodynamics and kinetics of iron ore reduction and coal gasification, specifically downdraft gasification are reviewed. Thereafter existing processes are reviewed. Shaft based processes and rotary kiln based processes are identified as possible suitors to the requirements. Limitations of these processes, specifically heat transfer in rotary kilns and the pressure drop over a reduction shafts are investigated. Finally a typical process in each of the main process classes is adjudicated against the set requirements. None is found to match the set requirements. A new process is proposed that is claimed to better suit to small scale operation. The uniqueness of the process is embodied in the combination of existing technologies of downdraft gasification and iron ore reduction in a shaft, in a single reactor. The process consists of two shafts, one placed above the other. Iron ore is charged into the top shaft, called the pre-heat shaft, where it is pre-heated and lightly reduced to wustite with gas from the bottom shaft, called the reduction shaft. The pre-heated ore is then charged together with coal into the reduction shaft. Gasification air is drawn into the top of the reduction shaft where the coal is gasified in a downdraft gasifier, generating reduction gas which reduces the ore as the gas moves concurrently with the iron ore. The exit gas is cleaned and pumped to the pre-heat shaft where it combusted with air to pre-heat the iron ore in the pre-heat shaft. The concept is analysed thermodynamically using amongst others, FactSage, and is shown to be thermodynamically viable. To test the concept process concept practically, an extremely small pilot plant with a production rate of 2kg DRI/h, consisting of only a gasifier/reduction shaft, was designed and constructed using reduction rate data obtained from literature supplemented with data obtained from thermogravimetric analysis of CO reduction of lump Sishen hematite. Pilot Plant trials were performed using various reductant sources. The degree of metallizaion was analysed using visual inspection of cut and polished samples compared to calibrated standards. Analysis of the results indicate that coal rate and production rate influence the degree of reduction positively and negatively. The conclusions arrived at include the fact that the process is thermodynamically viable, that it was possible to reduce iron ore in a simplified pilot plant, and that the process was found to be stable and controllable. It is recommended that a larger scale pilot plant, embodying the full proposed flow sheet be erected to test the process more completely.
AFRIKAANSE OPSOMMING: Die tesis handel oor die the ontwikkeling van ‘n nuwe proses vir die vervaardiging van sponsyster. Die proses is beoog spesifiek vir gebruik deur kleinskaalse Elektriese Boogoond (EBO) gebaseerde staal aanlegte, wat kleiner hoeveelhede sponsyster benodig. Die term ontwikkeling soos hier gebruik word aanvaar om aspekte soos konseptuele ontwerp, teoretiese verifikasie en aanvanklike toetsing te behels. Die vinnige groei van EBO staalvervaardiging het skroot getransformeer van weggooiproduk tot waardevolle grondstof. Die prys van skroot het skerp gestyg gedurende die periode 1995 to 2009. EBO gebaseerde staal produsente, in ‘n poging om meer beheer te hê oor die koste van hul insetmateriaal, het hul in ‘n toenemende mate tot skrootalternatiewe gewend. Sponsyster het ‘n aanvaarde en gewaardeerde byvoeging, en selfs alternatief tot staalskroot geword. Die byvoeging van sponsyster by die lading van ‘n tipiese EBO het besliste voordele, maar het dit ook nadelige effekte. Die voordele sluit die verdunning van reselemente en moontlike kostevoordele in, terwyl van die nadele die verlaging van die skroot tot vloeistaal opbrengs, en ‘n verhoging in kragverbruik, is. Die effek van die byvoeging van sponsyster tot ‘n EBO lading word gekwantifiseer. Daar word getoon dat die maksimum hoeveelheid sponsyster wat by ‘n EBO lading gevoeg kan word terwyl die hoeveelheid staal geproduseer konstant gehou word, ongeveer 50% is indien die sponsyster kontinue gelaai word, en die maksimum prys wat vir die sponsyster betaal kan word, word bereken op ongeveer 80% van die prys van basisgraad skroot. Ander vereistes uniek aan kleinskaal EBO bedrywers word oorweeg ten einde ‘n lys van vereistes vir ‘n sponsysteraanleg, uniek aan kleinskaal EBO bedrywers, te kan bepaal. ‘n Oorsig van gepubliseerde inligting oor sponsysterproduksietegnologie word onderneem ten einde die passing van bestaande prosesse met die gestelde vereistes te kan bepaal. Nadat die termodinamika en kinetika van ysterertsreduksie en steenkoolvergassing be-oordeel is, word bestaande sponsysterprosesse beskou. Skag- en Roterende oond gebaseerde prosesse word as moontlik gepaste prosesse identifiseer. Hitte-oordrag en die drukval oor gepakte beddens, synde tipiese beperkings eie aan die twee prosesse, woord beskou. Tipiese prosesse in elk van die hoofklasse van prosesse word ten laaste be-oordeel aan die gestelde kriteria. Daar word bevind dat geeneen van die bestaande prosesse aan die vereistes voldoen nie. ‘n Nuwe proses, wat skynbaar die behoefte van kleinskaalse EBO gebaseerde staalprodusente beter bevredig, word voorgestel. Bestaande tegnolgie word in ‘n unieke opstelling geïntegreer. Reduksie word in ‘n reduksiekag gedoen as gevolg van die ooglopende massa- en hitte-oordragvoordele van ‘n skag. Reduksiegas word verkry van steenkoolvergassing in ‘n afstroomvergasser ten einde teerverwydering in ‘n naverwerkingsstap oorbodig te maak. Die uniekheid van die proses is beliggaam in die kombinasie van ‘n steenkoolvergasser en reduksieskag in ‘n enkele reaktor. Die proses bestaan uit twee skagte, een bo die ander. Ystererts word in die boonste skag, wat die voorverhitskag genoem word, gelaai. Hier word die erts voorverhit en moontlik lig gereduseer tot wustiet met gas van die onderste skag, wat die reduksieskag genoem word. Die voorverhitte erts word saam met steenkool in die reduksieskag gelaai. Vergassingslug, word in die reduksieskag gesuig waar die steenkool in ‘n afstroomvergasser vergas word. Hierdeur word reduksiegas gegenereer wat die erts verder reduseer soos dit saamstromend met die erts af beweeg. Die uitlaatgas word gesuiwer en na die voorverhitskag gepomp waar dit verbrand word om die erts te voorverhit. Die konsep is termodinamies analiseer met gebruikmaking van onder andere FactSage, en werkbaar bevind. ‘n Baie klein, vereenvoudigde proefaanleg, met ‘n produksievermoë van 2kg DRY/uur, bestaande uit slegs ‘n reduksiekag, is ontwerp en gebou met gebruikmaking van kinetika inligting uit die literatuur aangevul met inligting uit termogravimetriese analise van die CO reduksie van Sishen hematiet. Proefaanleglopies is uitgevoer met ‘n reeks reduktantbronne. Die metallisasiegraad is bepaal deur visuele inspeksie van gesnyde, gepoleerde monsters wat vergelyk is met gekalibreerde standaarde. Analise van die resultate toon dat die steenkoolkoers ‘n positiewe verband, en die produksiekoers ‘n negatiewe verband met die metallisasiegraad het. Die slotsom waartoe gekom is, is dat die proses termodinamies werkbaar is, dat reduksie van ystererts in ‘n vereenvoudigde proefaanleg bewerk kon word, en dat die prose stabiel en beheerbaar voorgekom het. Die aanbeveling word gemaak dat ‘n groter proefaanleg wat die volledige voorgestelde vloeiskema verteenwoordig, opgerig behoort te word, ten einde die proses meer volledig te kan toets.
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Koermer, Scott Carl. "The Application of Mineral Processing Techniques to the Scrap Recycling Industry." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/63994.

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The scrap metal recycling industry is a growing industry that plays an important role in the sustainability of a large global metal supply. Unfortunately, recycling lacks many standards, and test procedures in place for mineral processing. These standards and practices, if used in recycling, could aid recyclers in determining and achieving optimal separations for their plant.. New regulations for scrap imports into China make it difficult to obtain the metal recoveries that have been achieved in the past. In order to help scrap yards adhere to the new regulations the Eriez RCS eddy current separator system was tested in full scale. The principles this system uses, called circuit analysis, have been used by the mining industry for years, and can be used with any separation system. The Eriez RCS system surpassed the requirements of the Chinese regulations, while simultaneously increasing the recovery of metals. In order to further analyze eddy current separator circuits, tree analysis was attempted for single eddy current separators, as well as more complex circuits mimicked using locked cycle tests. The circuits used in the locked cycle test were a rougher-cleaner, a rougher-scavenger, and a rougher-cleaner-scavenger. It was found that it is possible to use tree analysis to compare different eddy current separator circuits using the same settings, however standards for this practice need to be established for it to be useful. Using the data analysis methods developed for this particular tree analysis, the rougher-cleaner-scavenger test had the best performance overall. This is the same result as the full scale testing done on the Eriez RCS system, but more testing should be conducted to confirm the data analysis techniques of calculating theoretical efficiency, recovery efficiency, and rejection efficiency.
Master of Science
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JASZKOWIAK, MATTHEW N. "A PRELIMINARY STUDY OF THE EFFECTIVENESS OF A SAFETY AND HEALTH ERGONOMIC INTERVENTION FOR MANUAL SCRAP METAL SORTING." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1060950687.

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Wens, Bastian [Verfasser]. "Technical-economic assessment of advanced sorting of nonferrous metal scraps from waste incineration / Bastian Wens." Aachen : Shaker, 2015. http://d-nb.info/1080762698/34.

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Leung, Oi-kwan Winnie, and 梁愛群. "A preliminary study on the Hong Kong external trade of non-ferrous metal waste (and scrap) and other potentially hazardous wastematerials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31253180.

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Leung, Oi-kwan Winnie. "A preliminary study on the Hong Kong external trade of non-ferrous metal waste (and scrap) and other potentially hazardous waste materials /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1470934X.

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Books on the topic "Scrap metals"

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Henstock, Michael E. The recycling of non-ferrous metals. Ottawa: International Council on Metals and the Environment, 1996.

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Kozenko, A. V. Metallicheskiĭ fond Ukrainy. Kiev: Nauk. dumka, 1990.

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(Canada), Mineral Sciences Laboratories. An overview of the metals recycling industry in Canada. Ottawa, Ont: Mineral Sciences Laboratories, 1993.

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United States. Bureau of Mines. Division of Mineral Commodities., ed. Recycled metals in the United States. Washington, DC: U.S. Dept. of the Interior, Bureau of Mines, 1993.

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F, Sibley Scott, and Geological Survey (U.S.), eds. Flow studies for recycling metal commodities in the United States. Reston, Va: U.S. Dept. of the Interior, U.S. Geological Survey, 2004.

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F, Sibley Scott, and Geological Survey (U.S.), eds. Flow studies for recycling metal commodities in the United States. Reston, Va: U.S. Dept. of the Interior, U.S. Geological Survey, 2004.

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Branch, Ontario Waste Management, Canadian Association of Recycling Industries., and CH2M Hill Engineering Ltd, eds. A study of the Ontario ferrous metal shredding industry. [Toronto]: Ministry of the Environment, 1991.

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Association, Aluminum, ed. Guidelines for aluminum scrap receiving and inspection based on safety and health considerations. Washington, D.C: Aluminum Association, 1992.

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Kupri͡akov, I͡U P. Sbor i zagotovka loma i otkhodov t͡svetnykh metallov. Moskva: "Metallurgii͡a", 1988.

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Malkin, Robert. Curcio Scrap Metal, Cirello Iron and Steel, Saddle Brook, New Jersey. [Atlanta, Ga.?]: U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 1993.

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Book chapters on the topic "Scrap metals"

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Assem, Aya, Shimaa El-Haddad, and Iman El Mahallawi. "Centrifugal Casting of Al–Si Scrap." In Light Metals 2017, 1131–37. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51541-0_136.

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Wibner, Stefan, Helmut Antrekowitsch, and Barbara Falkensammer. "Representative Sampling, Fractionation and Melting of Al-Scrap." In Light Metals 2020, 1083–90. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36408-3_147.

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Kevorkijan, Varuzan, Peter Cvahte, Branko Hmelak, Sara Hmelak, Vukasin Dragojevic, Marina Jelen, Maijana Lazeta, and Uros Kovacec. "Scrap-Intensive Wrought Aluminum Alloys of Standard Quality." In Light Metals 2015, 237–42. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093435.ch41.

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Kevorkijan, Varužan, Peter Cvahte, Branko Hmelak, Sara Hmelak, Vukašin Dragojević, Marina Jelen, Marjana Lažeta, and Uroš Kovačec. "Scrap-Intensive Wrought Aluminum Alloys of Standard Quality." In Light Metals 2015, 237–42. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48248-4_41.

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Rombach, Georg, and Nils Bauerschlag. "LIBS Based Sorting—A Solution for Automotive Scrap." In Light Metals 2019, 1351–57. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05864-7_167.

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Lu, Xin, Kyosuke Watanabe, Osamu Takeda, and Hongmin Zhu. "Recycling Aluminum Casting Alloy Scrap Using Molten Salt Electrolysis." In Light Metals 2022, 1046–50. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92529-1_136.

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Gesing, Adam, Christopher Stewart, Richard Wolanski, Ron Dalton, and Larry Berry. "Scrap Preparation for Aluminum Alloy Sorting." In Recycling of Metals and Engineercd Materials, 1233–49. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118788073.ch109.

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Xiao, Y., M. Reuter, P. Vonk, J. Vonken, H. Orbon, Th Probst, and U. Boin. "Experimental Study on Aluminum Scrap Recycling." In Recycling of Metals and Engineercd Materials, 1075–87. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118788073.ch93.

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Paubel, Xavier, Frank Rheker, Sarah Juma, Stew Jepson, Dietmar Wieck, and Bill Ollerton. "Oxy-Fuel Technologies for Improved Efficiency in Aluminum Scrap Melting." In Light Metals 2019, 1165–72. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05864-7_143.

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Alam, Shafiq, V. I. Lakshmanan, and R. Sridhar. "Recycling of Zinc from Galvanized Steel Scrap." In The Minerals, Metals & Materials Series, 821–24. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37070-1_71.

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Conference papers on the topic "Scrap metals"

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Ramos Avila, Danny Adhemir, Adali Salvatierra Navarro, Marco Antonio Cotrina-Teatino, Iris Celeste Villalobos Segura, Solio Marino Arango Retamozo, Juan Carlos Rodriguez Soto, and Ivan Alberto Reyes Lopez. "Metals and scrap metal market in Peru and the world." In 2nd LACCEI International Multiconference on Entrepreneurship, Innovation and Regional Development (LEIRD 2022): “Exponential Technologies and Global Challenges: Moving toward a new culture of entrepreneurship and innovation for sustainable development”. Latin American and Caribbean Consortium of Engineering Institutions, 2022. http://dx.doi.org/10.18687/leird2022.1.1.47.

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Valverde-Asenjo, Inmaculada. "Impact of Scrap Tyre Dumps on Soil Contamination." In Proceedings of the 18th International Conference on Heavy Metals in the Environment. openjournals ugent, 2016. http://dx.doi.org/10.21825/ichmet.71075.

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N, Shivaanivarsha, Vigita S, Devi Priya P, and Shyamkumar M. "Autonomous On-Site Segregation of Metals and Non Metals Using A Scrap Collecting Robot." In 2022 International Conference on Communication, Computing and Internet of Things (IC3IoT). IEEE, 2022. http://dx.doi.org/10.1109/ic3iot53935.2022.9767861.

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Sunk, Werner, and Nickolas J. Themelis. "Increasing the Quantity and Quality of Metals Recovered at Waste-to-Energy Facilities." In 14th Annual North American Waste-to-Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/nawtec14-3197.

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The Integrated Waste Services Association (IWSA) compiles annual data of metal recovery by U.S. waste-to-energy (WTE) facilities. The 2004 IWSA survey showed that the U.S. WTEs processed 28.8 million short tons of municipal solid wastes (MSW) and recovered a total of approximately 706,000 tons of ferrous metal scrap, i.e. 2.45% of the MSW stream. The 2001 U.S.E.P.A. report on the characterization of the U.S. wastes reported that MSW contained 7.9% metals. However, some of this metal is collected separately at the household level and a small amount is non-ferrous metal. If it is assumed that the waste stream that is “disposed” in WTE facilities contains on the average 5% of ferrous metals, the ferrous input to all U.S. WTEs is estimated at approximately 1.44 million tons. On this basis, close to 0.7 million tons of metal are not recovered in WTEs. On the same basis, the ferrous metal lost in MSW that is landfilled (247 million tons in the U.S.) is estimated to be about 12 million tons per year. The non-recovered metal at WTEs entails both environmental and economic penalties. Therefore, an industry-university collaborative study is addressed to examining a) current metal recovery before and after combustion; b) potential for increasing metal value by physical processing of the metals recovered, either at WTEs or at a regional facility to be supplied by several WTEs; c) sampling and characterization procedures used in the WTE industry; and d) potential for physical and chemical characterization of different grades of WTE metal scrap. This paper focuses on the first two subjects — the current state of WTE metal recovery and the potential for increasing metal recovery. This work in progress is published in the NAWTEC 14 Proceedings with the objective of stimulating discussion and obtaining useful input from industry and academia concerned with the conservation of non-renewable resources.
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Jaap, Michael, and Daniel J. Shapiro. "Recapture of Energy and Metals From MSW and ASR." In 17th Annual North American Waste-to-Energy Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/nawtec17-2304.

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CarbonTech, LLC is the business vehicle to commercialize the licensed CATO Research Corporation process (US Patent No. 7,425,315) to generate an energy rich source of carbon from wastes such as municipal solid waste (MSW) and automobile shredder residue (ASR). With a focus on renewable energy technology, CarbonTech is in a unique position to reduce waste to landfills by 90%, generate a coal equivalent source of sustainable fuel to help reduce our dependence on fossil fuels, and recover metals for scrap recycling purposes.
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Middleton, Robert. "Innovating the Recovery and Recycling of Waste-to-Energy Ferrous Metals." In 15th Annual North American Waste-to-Energy Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/nawtec15-007.

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Most every one of the approximate 90 operating waste-to-energy facilities in North American have a ferrous metals recovery system to extract these metals from the ash stream before the ash is disposed as a waste. Recovery of this ferrous metal obviously reduces the significant landfill disposal cost and associated ash hauling cost for the facility by reducing the volume of materials being disposed. The volume of the ferrous metals stream typically ranges between 1.0 to 4.0 percent of the incoming waste volume. But for facilities which manage hundreds of thousands of materials per year, this relatively small stream of material in many facilities present such a nuisance that the operators at some plants have a penchant not to bother with it for the tenuous value they have received. The value received has been exposed to extreme variations and uncertainty due from the fragmented scrap metal markets, transportation costs, quality of the recovered product (or lack thereof), cost of recovery, and a number of other constraints and issues, some in the control of the facility operator and some not in the control of the operator. As a result, the attention given to this area is also very variable across facilities, even within the same parent company.
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Carvel, Iain, Richard D. Gunn, Christopher H. Orr, and Robin Strange. "A Practical Approach to Proving Waste Metals Suitable for Consignment as Radiologically Exempt Materials." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59266.

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Building 220 at Harwell was built by the Ministry of Works as a Radiochemical Research and Development facility in the latter part of the 1940’s. The facility has been operational since 1949 and has been extended several times, most notably the Plutonium Glove Box Wing in the 1950’s and the Remote Handling Wing in the 1980’s. Only the Remote Handling wing remains operational, processing Historic Waste which is being recovered from storage holes elsewhere on site. The remainder of the facility is undergoing progressive strip out and decommissioning. In the Plutonium Wing and associated areas the waste ‘fingerprint’ (nuclide vector) consists predominately of alpha emitting radionuclides. Decommissioning and Decontamination (D&D) operations often result in the production of large volumes of scrap metal waste with little or no radioactive contamination. Proving that the waste is clean can be costly and time consuming, as the shape and size of the metallic waste items often means that it is difficult or impossible to monitor all surfaces using conventional hand-held survey meters. This is a particular problem for alpha contamination measurement. Traditional radiological surveying techniques are very labour intensive and involve surveyors checking every surface using hand held instruments and smear sampling the hard to access areas. Even then 100% monitoring cannot be guaranteed. An alternative to traditional methods is the Long Range Alpha Detection (LRAD) technique which remotely detects and measures secondary ionization created in air by alpha particle interactions, allowing extremely low levels of alpha contamination to be measured. A survey system, IonSens®, using the LRAD technique, was developed by BNFL Instruments Ltd (now Babcock Nuclear) which allows rapid surveying of scrap metal for alpha contamination at very low levels. Two versions of this system exist but both essentially comprise a measurement chamber into which scrap metal is placed and sealed while a measurement is carried out. Research Sites Restoration Ltd (RSRL) has purchased an IonSens® system with a single 2m long measurement chamber. This instrument is optimised for clearance monitoring of pipework of up to 150mm diameter. Testing and use of support baskets has enabled the instrument to be used as a clearance monitor for a wide range of metallic waste including hand tools. This paper illustrates how the instrument, and a robust consignment procedure, has been used to justify the clearance of several tonnes of metal wastes for recycling rather than paying for disposal of this material as low level waste.
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Andrieienkov, A. V. "Justification for the development of a software system for determining the quality characteristics of scrap metal using computer vision technology." In MININGMETALTECH 2023 – THE MINING AND METALS SECTOR: INTEGRATION OF BUSINESS, TECHNOLOGY AND EDUCATION. Volume 1. Baltija Publishing, 2023. http://dx.doi.org/10.30525/978-9934-26-361-3-68.

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Latif, A. "An insight into friction stir consolidation process mechanics through advanced numerical model development." In Italian Manufacturing Association Conference. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902714-9.

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Abstract. Friction stir consolidation (FSC) is a solid-state process adopted to recycle machining scraps with aim to reduce the adverse impact of obtaining metals from their primary source. FSC was also applied to offer plausible new routes for alloying and upcycling from powder and scrap metal and thus drew the attention of many researchers. During FSC process, a rotating tool with a certain force is applied to a given chips batch enclosed in a die chamber turning it into a consolidated billet. It is assumed that favorable process conditions for chips bonding are acquired by the combined effect of friction, stirring action, and pressure of the tool. However, the real process is quite complex, and it can be understood only by developing proper solid bonding criteria through numerical modeling that can forecast the consolidation process. Therefore, in this research, an attempt was made to implement different existing bonding criteria. Some of these were good enough to predict favorable conditions for sound bonding of particular case studies, however a uniform criteria with a single threshold value that is applicable to all case studies could not be achieved. Therefore, this study suggests for a new approach to accurately predict the bonding integrity of the FSC process.
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Borisov, R. V., O. V. Belousov, N. V. Belousova, and A. A. Akimenko. "DISSOLUTION OF PLATINUM GROUP METALS IN AN AUTOCLAVE." In XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" named after corresponding member of the RAS Gennady Leonidovich PASHKOVA. Krasnoyarsk Science and Technology City Hall, 2023. http://dx.doi.org/10.47813/sfu.mnfrpm.2023.339-346.

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Platinum metals (PGMs) find wide practical application in high-tech areas and allow solving a number of economic and environmental problems. Under normal conditions, platinum metals are thermodynamically stable and resistant to the action of mineral acids and alkalis. On the other hand, a feature of PGMs and their compounds is the kinetic inhibition of processes involving them. The constant growth in the consumption of precious metals requires solving the problems of their highly efficient extraction from primary ores and concentrates, secondary raw materials, which are mainly represented by spent catalysts and electronic scrap. Processing is carried out using pyro- and hydrometallurgical methods. Modern hydrometallurgical technologies for the processing of precious metals are most preferable due to their greater environmental friendliness compared to pyrometallurgical processes. The most efficient transfer of platinum group metals into solution can be carried out at elevated temperatures and pressures, which makes it possible to remove kinetic difficulties. To do this, autoclaves are used, the use of which does not lead to losses and contamination with impurities of valuable metals, makes it possible to intensify the processes of dissolution and reduce the environmental burden on the environment. Unfortunately, despite the rapid development of autoclave technologies, there are few studies on the dissolution of pure metals under autoclave conditions. At the same time, the establishment of the mechanism and factors influencing the process of dissolution of metals will make it possible to develop and optimize existing schemes for processing platinum-containing raw materials.
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Reports on the topic "Scrap metals"

1

Muth, T. R., J. Moore, D. Olson, and B. Mishra. Advanced technologies for decontamination and conversion of scrap metals. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/41307.

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Kessinger, G. F. Evaluation of the electrorefining technique for the processing of radioactive scrap metals. Office of Scientific and Technical Information (OSTI), October 1993. http://dx.doi.org/10.2172/142481.

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Arnish, J., S. Y. Chen, S. Kamboj, and L. Nieves. P2Pro(RSM) : a computerized management tool for implementing DOE's authorized release process for radioactive scrap metals. Office of Scientific and Technical Information (OSTI), July 1999. http://dx.doi.org/10.2172/12039.

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Mizia, R. E., D. G. Atteridge, J. Buckentin, J. Carter, H. L. Davis, J. H. Devletian, M. R. Scholl, R. B. Turpin, and S. L. Webster. Refining technology for the recycling of stainless steel radioactive scrap metals, FY 94 bi-annual report. Office of Scientific and Technical Information (OSTI), August 1994. http://dx.doi.org/10.2172/10186422.

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Funk, D. M. INEL metal recycle radioactive scrap metal survey report. Office of Scientific and Technical Information (OSTI), September 1994. http://dx.doi.org/10.2172/137300.

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Nieves, L. A., S. Y. Chen, E. J. Kohout, B. Nabelssi, R. W. Tilbrook, and S. E. Wilson. Evaluation of radioactive scrap metal recycling. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/195680.

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Buckentin, J. M., B. K. Damkroger, and M. E. Schlienger. Radioactive scrap metal decontamination technology assessment report. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/231366.

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Griffin, T. P., J. E. Johnston, B. M. Payea, and B. M. Zeitoon. Catalytic extraction processing of contaminated scrap metal. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/155402.

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Griffin, T. P., and J. E. Johnston. Catalytic extraction processing of contaminated scrap metal. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/28231.

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Nieves, L. A., S. Y. Chen, E. J. Kohout, B. Nabelssi, R. W. Tilbrook, and S. E. Wilson. Analysis of disposition alternatives for radioactively contaminated scrap metal. Office of Scientific and Technical Information (OSTI), January 1997. http://dx.doi.org/10.2172/446055.

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