Bibliographies thématiques / Zinc leaching

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Littérature scientifique sur le sujet « Zinc leaching »

Auteur : Grafiati
Publié le 9 mars 2023
Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Zinc leaching"

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Yang, Jinlin, Xingnan Huo, Zongyu Li, and Shaojian Ma. "Study on Hydrometallurgical Treatment of Oxide Ores Bearing Zinc." Minerals 12, no. 10 (2022): 1264. http://dx.doi.org/10.3390/min12101264.

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As the depletion of zinc sulfide ores becomes more severe, investigations into the recovery of zinc from zinc oxide ores have aroused more interest. In this regard, acid-based hydrometallurgical treatment strategies have had great effectiveness. However, they are inadequate for low-grade zinc oxide ores. In this study, we examined the alkaline treatment of gossan for the recovery of oxide ores that bear zinc, such as siderite and limonite. Additionally, of particular note, the effects of a leaching agent, its concentration and time, temperature, liquid-to-solid ratio, as well as the agitation
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Ma, Shao Jian, Gui Fang Wang, Jin Lin Yang, Shao Juan Que, Li Qun Tang, and Jin Peng Feng. "Study on Preparation Process of Zinc Ferrite." Advanced Materials Research 201-203 (February 2011): 1736–40. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.1736.

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Zinc ferrite is usually formed during the roasting of zinc sulfide concentrate with high content of iron and reduces zinc recovery during the leaching of zinc calcine. Because it is difficult to find pure zinc ferrite in nature ore resources or in chemicals market, which impedes the investigation of the reaction characteristics of zinc ferrite and the seek of new technologies for zinc ferrite dissolution, so it is of significance to obtain relatively pure zinc ferrite for further research on zinc calcine leaching. This article investigated the preparation process of zinc ferrite based on the d
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Wang, Jingxiu, Zhe Wang, Zhongzhi Zhang, and Guangqing Zhang. "Comparison of Butyric Acid Leaching Behaviors of Zinc from Three Basic Oxygen Steelmaking Filter Cakes." Metals 9, no. 4 (2019): 417. http://dx.doi.org/10.3390/met9040417.

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The selective leaching of zinc from three different basic oxygen steelmaking (BOS) filter cakes by butyric acid was investigated to compare the leaching behaviors of zinc and further to establish the correlation of the zinc leaching performances and the chemical compositions. The effects of acid concentration and the acid to solid (L/S) stoichiometric ratio were studied, with different optimal leaching conditions obtained. BOS-1 showed the lowest leachability with only less than 10% of zinc removed by 0.5 M acid concentration and 90% of the L/S stoichiometric ratio in 10 h. The best zinc selec
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Zhang, Ya Li, Xian Jin Yu, Xiao Na Guo, and Xiao Bin Li. "Recovery Technology of Zinc from Hydrometallurgical Zinc Residues." Advanced Materials Research 396-398 (November 2011): 620–23. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.620.

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In this work, it was aimed to select and propose a feasible as well as an applicable method, or series of methods for the extraction of zinc. After determination of the components of the residue, water leaching, acid leaching and roasting-leaching were performed to reclaim Zn. Roasting-leaching was found to be effectively for Zn extraction by controlling acid mass, roasting duration and temperature as parameters. At the optimum conditions, 0.7 times the amount of H2SO4 at 250 °C for 150 min in roasting, 82.05% of initial Zn content was extracted.
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Yang, Jin Lin, Hong Mei Zhang, Xiu Juan Su, and Shao Jian Ma. "Study on Leaching Zinc Calcine with High Iron." Advanced Materials Research 826 (November 2013): 118–21. http://dx.doi.org/10.4028/www.scientific.net/amr.826.118.

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In recent years, recovering zinc from zinc calcine with high iron has been a matter of discussion. In this paper, sulfuric acid leaching was carried out to assess the effect of several parameters on zinc and iron extraction in zinc calcine with high iron in which the grade of zinc and iron is 53.90% and 19.38%, respectively. Parameters, such as stirring speed, sulfuric acid concentration, liquid to solid ratio and leaching time, were investigated. The results show that leaching time has done nothing to the leaching rate, but has great influence on leaching efficiency. Liquid to solid ratio and
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Li, Hui, Yutian Fu, Jinglong Liang, Le Wang, Hongyan Yan, and Linfei Zhao. "Preparation of Zinc Oxide and Zinc Ferrite from Zinc Hypoxide by Wet Process and Electrochemistry." Crystals 11, no. 9 (2021): 1133. http://dx.doi.org/10.3390/cryst11091133.

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With the increase of zinc resource consumption, the recovery and utilization of zinc resources in zinc suboxide has become one of the current research hotspots. In this study, the electrochemical method was used to remove the impurities in the zinc leaching night and enrich the zinc ferrite in the ammonia leaching residue for the solution and ammonia leaching slag after the ammonia leaching of zinc hypoxide, in order to realize the comprehensive utilization of the essence of zinc immersion night and new resources. The results showed that the reduction potentials of copper, lead, cadmium, and z
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Zhang, Limin, Yunyan Wang, Yong Ke, et al. "A novel leaching process of zinc ferrite and its application in the treatment of zinc leaching residue." Journal of Physics: Conference Series 2738, no. 1 (2024): 012027. http://dx.doi.org/10.1088/1742-6596/2738/1/012027.

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Abstract Zinc ferrite is a refractory phase generated in the pyrometallurgical process of zinc and steel production. Much energy is invested in the decomposition of zinc ferrite to recycle zinc since zinc ferrite is difficult to leach. In this work, a novel leaching process targeted at decomposition of zinc ferrite was proposed to save energy and improve metal recovery efficiency. The key of this novel leaching process was the use of copper powder as the reductant. Leaching of zinc ferrite in the presence of copper powder was investigated. The extraction of zinc was 100% when molar ratio of co
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Zhang, Qian, Qicheng Feng, Shuming Wen, Chuanfa Cui, and Junbo Liu. "A Novel Technology for Separating Copper, Lead and Zinc in Flotation Concentrate by Oxidizing Roasting and Leaching." Processes 7, no. 6 (2019): 376. http://dx.doi.org/10.3390/pr7060376.

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In this work, oxidizing roasting was combined with leaching to separate copper, lead, and zinc from a concentrate obtained by bulk flotation of a low-grade ore sourced from the Jiama mining area of Tibet. The flotation concentrate contained 7.79% Cu, 22.00% Pb, 4.81% Zn, 8.24% S, and 12.15% CaO; copper sulfide accounted for 76.97% of the copper, lead sulfide for 25.55% of the lead, and zinc sulfide for 67.66% of the zinc. After oxidizing roasting of the flotation concentrate, the S content in the roasting slag decreased to 0.22%, indicating that most sulfide in the concentrate was transformed
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Zheng, Xuemei, Shiwei Li, Bingguo Liu, Libo Zhang, and Aiyuan Ma. "A Study on the Mechanism and Kinetics of Ultrasound-Enhanced Sulfuric Acid Leaching for Zinc Extraction from Zinc Oxide Dust." Materials 15, no. 17 (2022): 5969. http://dx.doi.org/10.3390/ma15175969.

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As an important secondary zinc resource, large-scale reserves of zinc oxide dust (ZOD) from a wide range of sources is of high comprehensive recycling value. Therefore, an experimental study on ultrasound-enhanced sulfuric acid leaching for zinc extraction from zinc oxide dust was carried out to investigate the effects of various factors such as ultrasonic power, reaction time, sulfuric acid concentration, and liquid–solid ratio on zinc leaching rate. The results show that the zinc leaching rate under ultrasound reached 91.16% at a temperature of 25 °C, ultrasonic power 500 W, sulfuric acid co
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Zhang, Jinxia, Jiajing Dong, Fusheng Niu, and Chao Yang. "Properties and Kinetics of Selective Zinc Leaching with Choline Chloride and Urea." Minerals 11, no. 8 (2021): 857. http://dx.doi.org/10.3390/min11080857.

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A choline chloride-urea (ChCl-urea) deep eutectic solvent (DES) was used to experimentally investigate the secondary recovery of zinc from zinc-bearing dust sludge via a leaching process. The effects of varying the liquid–solid ratio, leaching temperature, stirring speed, and leaching time on the zinc leaching efficiency were determined, and the optimum values of these parameters were found to be 15:1, 90 °C, 400 rpm, and 600 min, respectively, at which a leaching efficiency of 86.87% was achieved. XRF and EDS analyses confirmed that the zinc content in the sludge decreased noticeably after le
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Thèses sur le sujet "Zinc leaching"

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McGinnity, Justin. "Sulfur dioxide leaching of zinc sulfide." Thesis, Curtin University, 2001. http://hdl.handle.net/20.500.11937/1033.

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Studies were conducted into the mechanism and kinetics of the dissolution of synthetic zinc sulfide and zinc concentrate in aqueous solutions containing sulfur dioxide.Experiments at ambient temperature established that the dissolution of ZnS in aqueous solutions of sulfur dioxide proceeds via acidic non-oxidative dissolution and not by direct reaction of the sulfide with S02(aq). The non-oxidative dissolution reaction generates H2S(aq) or HS-(aq) species which are thought to rapidly react with sulfurous acid species, S02(aq) or HS03-(aq), to possibly produce initially sulfane monosulfonates a
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McGinnity, Justin. "Sulfur dioxide leaching of zinc sulfide." Curtin University of Technology, Department of Applied Chemistry, 2001. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=12896.

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Studies were conducted into the mechanism and kinetics of the dissolution of synthetic zinc sulfide and zinc concentrate in aqueous solutions containing sulfur dioxide.Experiments at ambient temperature established that the dissolution of ZnS in aqueous solutions of sulfur dioxide proceeds via acidic non-oxidative dissolution and not by direct reaction of the sulfide with S02(aq). The non-oxidative dissolution reaction generates H2S(aq) or HS-(aq) species which are thought to rapidly react with sulfurous acid species, S02(aq) or HS03-(aq), to possibly produce initially sulfane monosulfonates a
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Dyson, Devy Alexander William. "Modeling the kinetics of the zinc pressure leaching process - oxidative sphalerite leaching in sulphuric acid media." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/63409.

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In the field of hydrometallurgy, the industrial uptake of leaching models has been overlooked partially due to the lack of universal models. A model developed for one plant cannot easily be transferred for the application of a different plant without redesigning the leaching kinetics in the code. The Multiple Convolution Integral (MCI)-based model developed in this thesis has the ability to be universally applied by user-controlled inputs. Chemical reactions can be selected while the modeling software calculates the mass and energy balances. Residence times, operating conditions, and the rate-
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Chieng, Pau. "Recovery of silver from lead/zinc flotation tailings by thiosulfate leaching /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19152.pdf.

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Filippou, Dimitrios. "Reaction kinetics and reactor modelling of zinc-ferrite hot-acid leaching." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41588.

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The main objectives of this Thesis were the determination of the reaction kinetics of the dissolution of zinc-ferrite particles ((Zn$ sb{1-x}$, Fe$ sbsp{x}{2+}$)$ rm Fe sbsp{2}{3+}O sb4$, x $ le$ 0.4) in hot aqueous solutions of sulphuric acid, and the development of a mathematical model for the prediction of the performance of a series of continuous stirred-tank reactors where zinc ferrite is leached.<br>Well-characterised, porous zinc-ferrite particles of industrial origin were subjected to controlled leaching experiments at temperatures close to 373 K in sulphuric acid solutions of concentr
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Rusen, Aydin. "Recovery Of Zinc And Lead From Cinkur Leach Residues By Using Hydrometallurgical Techniques." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608669/index.pdf.

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In this thesis, it was aimed to select and propose a feasible method, or series of methods, for the recovery of zinc (Zn) and lead (Pb) that are present in disposed &Ccedil<br>iNKUR leach residues having 12.43 % Zn, 15.51 % Pb and 6.27 % Fe. Initially, physical, chemical and mineralogical characterizations of the leach residues were done. Results of these analyses showed that lead was present as lead sulfate (PbSO4), and zinc was present as zinc sulfate heptahydrate (ZnSO4.7H2O), zinc ferrite (ZnFe2O4) and zinc silicate (2ZnO.SiO2) in the leach residues. Initially, water leaching experiments w
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Deveci, Haci. "Bacterial leaching of complex zinc/lead sulphides using mesophilic and thermophilic bacteria." Thesis, University of Exeter, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341175.

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Bertilsson, Olle. "Study of leaching behavior of tin in Zinc-clinker and Mixed Oxide." Thesis, Luleå tekniska universitet, Industriell miljö- och processteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69941.

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Due to the increasing usage of Sn in different electronics, such as solders and in touchscreens, together with Boliden Rönnskärs increased intake of electronic waste as a secondaryraw material, a Zn-containing product called Zn-clinker has increasing amounts of Sn. TheZn-clinker is shipped to Boliden Zn-smelter in Odda, where the Zn-clinker is mixed in withcalcine (roasted concentrate) and leached in several steps. Since Zn-clinker is a product froma halogen removal in a clinker-furnace, the feed material (Mixed Oxide), for this furnace, wasalso investigated since there are plans to replace cl
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Zanager, Afaf Mohamed. "Mercury leaching from dental amalgam fillings and its association with urinary zinc." University of the Western Cape, 2019. http://hdl.handle.net/11394/6791.

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Magister Scientiae (Medical Bioscience) - MSc(MBS)<br>Mercury (Hg) is an example of a toxic metal that is not essential for nutrition. It exists in organic and inorganic forms in seafood and vapour from dental amalgam fillings respectively. Elemental mercury (Hg0) from dental amalgam was the focus of this study. Dental amalgam is one of the most commonly used dental filling materials and has been used for over 150 years. It is composed of Hg0 (approximately 50%) combined with other metals such as copper and zinc (Zn). These fillings give off Hg0 vapour throughout their existence, and is furthe
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Carrillo-Gonzalez, Rogelio. "Mechanisms of Zn displacement through sandy soils." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312559.

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Livres sur le sujet "Zinc leaching"

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Smyres, G. A. Chlorine-oxygen leaching of a low-grade zinc sulfide flotation concentrate. U.S. Dept. of the Interior, Bureau of Mines, 1985.

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Eichbaum, B. R. Method for recovering anhydrous ZnCl₂ from aqueous solutions. U.S. Dept. of the Interior, Bureau of Mines, 1991.

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Prater, R. B. Defluorination of byproduct zinc concentrates. U.S. Dept. of the Interior, Bureau of Mines, 1985.

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Kunaev, Askar Minliakhmedovich. Podzemnoe vyshchelachivanie svint͡s︡ovo-t͡s︡inkovykh rud. Izd-vo "Nauka" Kazakhskoĭ SSR, 1986.

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Owusu, George. The Role of surfactants in the leaching of zinc sulphide minerals at temperatures above the melting point of sulphur. University of British Columbia, 1993.

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Hammack, Richard W. Acid mine drainage as a lixiviant for leaching carbondate-hosted zinc sulfide ores from east and central Tennessee. s.n, 1990.

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University of Missouri School of Mines. Bibliography on the Roasting, Leaching, Smelting and Electrometallurgy of Zinc. Creative Media Partners, LLC, 2018.

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Chapitres de livres sur le sujet "Zinc leaching"

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Buban, K. R., M. J. Collins, I. M. Masters, and L. C. Trytten. "Comparison of Direct Pressure Leaching with Atmospheric Leaching of Zinc Concentrates." In Lead-Zinc 2000. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118805558.ch48.

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McKay, D. J., G. Sterzik, T. L. Salway, and W. A. Jankola. "Leaching and Purification at Cominco's Trail Zinc Operations." In Lead-Zinc 2000. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118805558.ch28.

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Ferron, C. J. "Atmospheric Leaching of Zinc Sulphide Concentrates Using Regenerated Ferric Sulphate Solutions." In Lead-Zinc 2000. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118805558.ch47.

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Svens, Kurt. "Direct Leaching Alternatives for Zinc Concentrates." In T.T. Chen Honorary Symposium on Hydrometallurgy, Electrometallurgy and Materials Characterization. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118364833.ch17.

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Alfaro, P., C. Moctezuma, and S. Castro. "Improvements in the Leaching Circuit of IMMSA's Zinc Plant in San Luis Potosí, México." In Lead-Zinc 2000. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118805558.ch14.

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Sun, Chengyu, Xuemei Zheng, Yongguang Luo, Aiyuan Ma, and Song Li. "Microwave Drying Behavior of Zinc Leaching Residue." In TMS 2021 150th Annual Meeting & Exhibition Supplemental Proceedings. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65261-6_35.

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Deng, Zhi-gan, Guang Fan, Chang Wei, et al. "Reductive Leaching of Indium-Bearing Zinc Leaching Residue in Sulfuric Acid and Sulfur Dioxide." In Rare Metal Technology 2020. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36758-9_36.

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Li, Guojiang, Yongguang Luo, and Tingfang Xie. "Leaching Zinc from Crystallization Slag by Acid Leaching: Process Optimization Using Response Surface Methodology." In The Minerals, Metals & Materials Series. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05749-7_28.

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Chen, Longyi. "The Analysis of Fe Behavior in Zinc Pressure Leaching." In The Minerals, Metals & Materials Series. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37070-1_77.

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Xie, Zeqiang, Yufeng Guo, Tao Jiang, Feng Chen, and Lingzhi Yang. "The Extraction of Zinc from Zinc Ferrite by Calcified-Roasting and Ammonia-Leaching Process." In The Minerals, Metals & Materials Series. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51340-9_48.

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Actes de conférences sur le sujet "Zinc leaching"

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Raman, Aravamudhan. "Green Inhibitors for Coatings and Linings – Traditional vs. Green." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04410.

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Abstract Pigment additives containing chromates, red lead and excessive zinc, commonly used in olden times in paint systems, are toxic and barred from widespread usage. Use of Cr(III) salts instead of Cr(VI) in conversion coatings has been advocated. Methods have been tried to cover the toxic ingredients by non-toxic topcoats and to make them slow leaching by incorporating them in organometallic pigment form strongly bonded to the polymer base of the coating. Zinc phosphate and other zinc salts are being used instead of chromate salts and these are of the green type and offer excellent inhibit
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Temkar, Prakash M., Yee Soon Lee, Richard J. Scholze, Stephen W. Maloney, and Edgar D. Smith. "Lead Reduction Strategies in Drinking Water Systems Using the Cerl Pipe Loop System." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90168.

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Abstract Water utilities unable to meet the proposed EPA Lead and Copper Rule will be required to either improve or install corrosion control treatment adequate to meet the regulations or demonstrate that they have optimized treatment. USA-CERL has designed and successfully employed a pipe loop system for use at Army facilities to optimize water treatment and to study the corrosivity of distribution system water. Using the pipe loop system experiments were conducted to determine the lead leaching characteristics of lead coupons and lead based solder coated on copper pipes, under various water
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Boffardi, B. P., and A. M. Sherbondy. "Control of Lead Corrosion by Chemical Treatment." In CORROSION 1991. NACE International, 1991. https://doi.org/10.5006/c1991-91445.

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Abstract Laboratory corrosion studies with lead pipe in the presence of orthophosphate or polyphosphate show that orthophosphate ions are most effective in controlling lead leaching. XPS analysis indicates that the mechanism differs for the two phosphate species; orthophosphate interacts directly with the lead surface whereas polyphosphates require calcium ions to develop a self limiting protective barrier. Pilot plant testing using a pipe loop fabricated from lead, soft solder, copper and a brass faucet simulating household water usage with typical on-off cycles, established equilibrium corro
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Ivanka Anguelova and Gueorgui Anguelov. "Zinc Leaching Potential in Pastureland." In 2005 Tampa, FL July 17-20, 2005. American Society of Agricultural and Biological Engineers, 2005. http://dx.doi.org/10.13031/2013.18947.

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Ruixiang Wang, Jie Zeng, Jinhui Li, and Motang Tang. "Recovery of zinc and silver from zinc acid-leaching residue by sulphation roasting-water leaching of zinc and iron-silver chlorination leaching method." In 2011 International Conference on Computer Science and Service System (CSSS). IEEE, 2011. http://dx.doi.org/10.1109/csss.2011.5972064.

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Yu Xianjin, Guo Xiaona, Zhang Yali, and Zhang Lipeng. "Recovery of zinc, lead and silver from zinc leaching residue." In Environment (ICMREE). IEEE, 2011. http://dx.doi.org/10.1109/icmree.2011.5930533.

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Bulaev, Aleksandr. "COPPER AND ZINC LEACHING FROM FLOTATION WASTES." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019v/4.2/s05.008.

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Talan, Deniz, M. Ümit Atalay, and N. Emre Altun. "Extraction of Zinc from Smithsonite by Ammonia Leaching." In The 3rd World Congress on Mechanical, Chemical, and Material Engineering. Avestia Publishing, 2017. http://dx.doi.org/10.11159/mmme17.130.

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Abo Atia, Thomas, and Jeroen Spooren. "Microwave Assisted Chloride Leaching of Zinc Plant Residues." In The 5th World Congress on Mechanical, Chemical, and Material Engineering. Avestia Publishing, 2019. http://dx.doi.org/10.11159/mmme19.118.

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Xianzhong, He, and Guo Yanjie. "The Monitoring System of Zinc Metallurgy Leaching Process." In 2009 Second International Symposium on Computational Intelligence and Design. IEEE, 2009. http://dx.doi.org/10.1109/iscid.2009.268.

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