Relevant bibliographies by topics / Copper chromite catalyst

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Copper chromite catalyst'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Copper chromite catalyst"

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Hall, J. B., and J. K. Kouba. "Electron Microscopy of Barium-Promoted Copper Chromite." Proceedings, annual meeting, Electron Microscopy Society of America 43 (August 1985): 390–91. http://dx.doi.org/10.1017/s0424820100118825.

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Copper chromite was reported as an effective catalyst for the hydrogenation of esters to alcohols by Homer Adkins in 1931, and it still remains the catalyst of choice for this reaction. Its most common commercial application is in the hydrogenation of fatty esters to detergent range linear alcohols. Typical reaction conditions are relatively severe: 200-250°C and 2000-4000 psig hydrogen. Barium is often used as a promoter and such a catalyst is prepared by codeposition of barium and copper chromates followed by calcination to the mixed chromite. The catalyst is usually activated by reduction w
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Li, Zeng Xin, Guo Ming Wang, and Qiang Liang. "The Comparison of Three Recycling Processes of Copper Chromite Spent Catalysts." Advanced Materials Research 599 (November 2012): 566–69. http://dx.doi.org/10.4028/www.scientific.net/amr.599.566.

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Three technologies of recycling copper chromite spent catalysts from furfuryl production by furfural hydrogenization were developed. After the organic species was removed from the solid waste by vacuum pressure distillation at 130°C, the resultant solid waste catalyst was mixed with soda ash, followed by roasting, leaching and removing silicon in a reverberating furnace to obtain sodium chromate. Dissolving the cupric oxide in soda ash solution to remove chrome and then dissolving it in nitric acid, cupric nitrate can be obtained. A certain proportion of such sodium chromate and cupric nitrate
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Widiyarti, Galuh. "Karakterisasi Katalis Cu-Cr /Kieselguhr." REAKTOR 5, no. 1 (2017): 12. http://dx.doi.org/10.14710/reaktor.5.1.12-15.

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Copper-chromite active metal catalyst was prepared by using impregnation method with kieselguhr (Al2O3SiO2) as supporting material. The content of metal active was 20% with 1:1 proportion of complex metal Cu : Cr. The specific surface area of catalyst gave specific surface area of 2,537 m2/ gram. X-ray Diffraction analysis, shown that active metal of Cu-copper Cu and cristobalite SiO2. Temperature program analysis, shown that reduction temperature of catalyst was 300 0Cusing by Scanning Electronic Microscope (SEM), the morphology of catalyst was determined.Keyword : Copper-Chromite catalyst, i
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Gulomov, Shuxratqodir, Dilnoza Turdieva, Nurkhon Isaeva, Davronbek Narzullaev, and Kamoliddin Shadmanov. "Catalytic neutralization of gas emissions in the manufacture of pharmaceutical preparations." E3S Web of Conferences 411 (2023): 02024. http://dx.doi.org/10.1051/e3sconf/202341102024.

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Environmental protection in the Republic of Uzbekistan with a developed chemical, petrochemical, metallurgical and pharmaceutical industries is an important problem of our time. To solve it, a domestic copper-chromite catalyst “Chemex-203” was previously developed, which was operated for a long time in an energy-saving reversible reactor RKR- 10 in the process of catalytic neutralization of ventilation emissions of highly toxic styrene, toluene and acetone vapors on the territory of the “Hobos-TAPO” joint venture in Tashkent. This paper is devoted to solving a two-sided environmental problem -
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Govender, Alisa, Abdul Mahomed, and Holger Friedrich. "Water: Friend or Foe in Catalytic Hydrogenation? A Case Study Using Copper Catalysts." Catalysts 8, no. 10 (2018): 474. http://dx.doi.org/10.3390/catal8100474.

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Copper oxide supported on alumina and copper chromite were synthesized, characterized, and subsequently tested for their catalytic activity toward the hydrogenation of octanal. Thereafter, the impact of water addition on the conversion and selectivity of the catalysts were investigated. The fresh catalysts were characterized using X-ray diffraction (XRD), BET surface area and pore volume, SEM, TEM, TGA-DSC, ICP, TPR, and TPD. An initial catalytic testing study was carried out using the catalysts to optimize the temperature and the hydrogen-to-aldehyde ratio—which were found to be 160 °C and 2,
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Kawamoto, Aparecida M., Luiz Claudio Pardini, and Luis Claudio Rezende. "Synthesis of copper chromite catalyst." Aerospace Science and Technology 8, no. 7 (2004): 591–98. http://dx.doi.org/10.1016/j.ast.2004.06.010.

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Ashraf, Ahmed, Ahmed Fahd, Hosam E. Mostafa, E. M. Yossef, and Sherif Elbasuney. "The potentials of copper chromite nanoparticles on ammonium nitrate decomposition: Towards eco-friendly oxidizers for green solid propellants." Journal of Physics: Conference Series 2830, no. 1 (2024): 012013. http://dx.doi.org/10.1088/1742-6596/2830/1/012013.

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Abstract Ammonium perchlorate (AP) is the universal oxidizer for solid propellants; AP combustion is accompanied with the release of white smoke (HCl). HCl has raised an environmental concern; it could cause acidic rain and deteriorate the fertile soil. Chlorine free and eco-friendly oxidizers are highly appreciated for green solid propellants. Ammonium nitrate (AN) could be the greener substitute for AP; yet AN expose low performance. Whereas AP demonstrated exothermic decomposition with the release of -733 J/g; AN demonstrated strong endothermic decomposition process of +1707 J/g. AN with st
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Prasad, R. "Highly active copper chromite catalyst produced by thermal decomposition of ammoniac copper oxalate chromate." Materials Letters 59, no. 29-30 (2005): 3945–49. http://dx.doi.org/10.1016/j.matlet.2005.07.041.

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Hanic, F., G. Plesch, P. Dolezel, and J. Ovecková. "Study of copper chromite catalysts, III. Structure and catalytic activity of copper chromite catalyst in reductive alkylation reaction." Reaction Kinetics and Catalysis Letters 32, no. 2 (1986): 393–98. http://dx.doi.org/10.1007/bf02068341.

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MacIntosh, Kathryn L., and Simon K. Beaumont. "Nickel-Catalysed Vapour-Phase Hydrogenation of Furfural, Insights into Reactivity and Deactivation." Topics in Catalysis 63, no. 15-18 (2020): 1446–62. http://dx.doi.org/10.1007/s11244-020-01341-9.

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AbstractFurfural is a key bioderived platform molecule, and its hydrogenation affords access to a number of important chemical intermediates that can act as “drop-in” replacements to those derived from crude oil or novel alternatives with desirable properties. Here, the vapour phase hydrogenation of furfural to furfuryl alcohol at 180 °C over standard impregnated nickel catalysts is reported and contrasted with the same reaction over copper chromite. Whilst the selectivity to furfuryl alcohol of the unmodified nickel catalysts is much lower than for copper chromite as expected, the activity of
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Dissertations / Theses on the topic "Copper chromite catalyst"

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Hop, Marina. "Dehydrogenation of N-Propanol to Propionaldehyde over a copper chromite catalyst." Master's thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/18796.

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Methyl methacrylate (MMA) is widely used for a range of polymer products. MMA can be produced from propionaldehyde via the BASF process. n-Propanol is readily available 'in South Africa as a byproduct of Fischer-Tropsch synthesis. This prompted an investigation into the production of propionaldehyde by the dehydrogenation of n-propanol. There is presently no established technology for the dehydrogenation of n-propanol to propionaldehyde and there has been very little work carried out on the effect of process variables on propionaldehyde yield. The emphasis of the current work was optimising pr
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Chiu, Chuang-Wei. "Catalytic conversion of glycerol to propylene glycol synthesis and technology assessment /." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4421.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on May 1, 2009) Vita. Includes bibliographical references.
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Brown, Jared C. "UV Visible Spectra Analysis of High Temperature Water Gas Shift Catalysts Made from Iron, Lanthanum, Copper, and Chromium Oxides." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3222.

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Hydrogen is a vital component in several different chemical reactions as well as a potential fuel source for the future. The water gas shift (WGS) reaction converts CO and water to hydrogen and CO2. The objective of this work is to first, characterize the potential benefits of the addition of lanthanum oxide (lanthana) to the iron-chromium-copper (Fe-Cr-Cu) oxide catalysts industrially used in high temperature water gas shift processes, and second, analyze these catalysts using in-situ UV-Visible spectroscopy. The benefits of each component in the catalyst are discussed as well as potential be
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Hsieh, Liu Tzu, and 劉子賢. "Application of Copper-chromite Catalysts on the Methanol ion Reaction." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/69250736730693179684.

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盧志峰. "Application and Kinetic of Copper-chromite Catalysts on the Mehanol Dissociation Reaction Under Pressure." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/77594101133814548433.

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碩士<br>國立臺灣科技大學<br>化學工程技術研究所<br>86<br>This paper presents an investigation of the effect of reaction pressure to the activity and stability on Cu/Cr/Mn catalysts for the methanol dissociation reaction under pressure. In order to understand the catalyst deactivation, the catalysts were undergo a series of long time on-stream test and their physical properties beford and after the test were also examined by BET, N2O/H2 titration, XRD ,SEM and EA. 　　Kinetic studies examined the influence of reaction pressure on the rate-controlling mechanism of the methanol dissociation reaction. We also compared
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Yang, S. W., and 楊曉文. "A Study of Yttria-Stabilized Zirconia Supported Copper-Chromium Catalysts for Temperature-Programmed Reduction Reaction." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/42464451790960056448.

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Book chapters on the topic "Copper chromite catalyst"

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Buczek, B., S. Zięetek, and A. Świątkowski. "Investigation of the Chromium-Copper-Silver Catalyst Distribution in the Porous Structure of Active Carbon Carrier Granules." In The Kluwer International Series in Engineering and Computer Science. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1375-5_13.

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Laine, J., A. Albornoz, J. Brito, et al. "Development of a Copper Chromite Catalyst for Carbon Monoxide Automobile Emission Control." In Catalysis and Automotive Pollution Control, Proceedings of the First International Symposium (CAPOC I). Elsevier, 1987. http://dx.doi.org/10.1016/s0167-2991(09)60437-7.

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Yur'eva, T. M., L. Plyasova, O. V. Makarova, T. A. Krieger, and V. I. Zaikovskii. "Nanometer size copper particles in copper chromite catalysts." In Studies in Surface Science and Catalysis. Elsevier, 1995. http://dx.doi.org/10.1016/s0167-2991(06)81791-x.

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"Copper-Based Chromium-Free HydrogenationCatalysts." In Catalysis of Organic Reactions. CRC Press, 2000. http://dx.doi.org/10.1201/9781482270754-43.

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Sloane, S. E., K. T. Behlow, M. D. Mills, and J. R. Clark. "46.5.7 Three-Component Coupling Reactions that Generate 1,3-Dienes." In Knowledge Updates 2022/2. Georg Thieme Verlag KG, 2022. http://dx.doi.org/10.1055/sos-sd-146-00001.

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AbstractThree-component coupling reactions have emerged as an atom-economical approach to generate a wide variety of new molecular architectures containing a 1,3-diene. While a variety of methods exist to generate 1,3-dienes, three-component coupling reactions permit stereoselective access to unique substitution patterns within this privileged functionality. Dienes are ubiquitous in natural products and bioactive molecules, and also serve as important building blocks in organic synthesis. Transition-metal-catalyzed three-component couplings that employ a nickel, copper, palladium, ruthenium, p
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Nelson, David J., and Steven P. Nolan. "Transition Metal Complexes and Ligand Synthesis." In Contemporary Catalysis: Science, Technology, and Applications. The Royal Society of Chemistry, 2017. http://dx.doi.org/10.1039/9781849739900-00396.

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This chapter considers the ways in which N-heterocyclic carbenes and phosphines can be prepared from readily-available starting materials. The synthesis of complexes of these ligands, based on metals such as iridium, platinum, ruthenium, chromium, palladium, copper and gold, is also discussed. These species are useful for various transformations, including hydroformylation, metathesis, cross-coupling, and alkene oligomerisation.
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Castiglioni, G. L., M. Gazzano, G. Stefani, and A. Vaccari. "Selective hydrogenation of maleic anhydride by modified copper chromite catalysts." In Studies in Surface Science and Catalysis. Elsevier, 1993. http://dx.doi.org/10.1016/s0167-2991(08)63330-3.

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Hubaut, R., and J. P. Bonnelle. "Reactions of Unsaturated Ethers on a Copper-Chromium Catalyst." In Studies in Surface Science and Catalysis. Elsevier, 1991. http://dx.doi.org/10.1016/s0167-2991(08)61133-7.

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Prasad, R. "A New Precursor for the Preparation of Novel Copper Chromite Catalysts." In Studies in Surface Science and Catalysis. Elsevier, 1993. http://dx.doi.org/10.1016/s0167-2991(08)64525-5.

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"Synthetic Methods for Diaryl Ether Preparation Using Arylating Reagents." In Methodologies in Ether Synthesis. Royal Society of Chemistry, 2024. http://dx.doi.org/10.1039/9781837675166-00078.

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Diaryl ethers are one of the most essential intermediates for organic synthesis in the fields of medicine, agrochemistry, and polymer sciences. There are many naturally occurring biologically active compounds bearing a diaryl ether group including the antibiotic vancomycin, perrottetines, and chloropeptins (anti-HIV agents). This chapter presents efficient and practical synthetic methods for the synthesis of diaryl ethers including Ullmann-type reactions of aryl halides which are achieved using copper catalysts, Buchwald–Hartwig cross-couplings of aryl halides in the presence of palladium cata
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Conference papers on the topic "Copper chromite catalyst"

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Mageswaran, A., and S. Dhandapani. "Copper Chromate Catalyst Reduces Cyclic Variations In a Two Stroke Spark Ingition Engine Combustion Chamber." In SIAT 2001. SAE International, 2001. http://dx.doi.org/10.4271/2001-26-0017.

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Sendilvelan, S., K. Jeyachandran, and K. Bhaskar. "Pollution Studies on Gasoline Engine With Electrically Heated Catalyst." In ASME 2001 Internal Combustion Engine Division Spring Technical Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/ices2001-111.

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Abstract The environmental pollution is one of the major strategic factors for decision-makers both in industry as well as in government. It has been established beyond doubt that the tailpipe emission shows significant effect on environment. It is clear that the vehicles form the predominant source of regulated and unregulated pollution. The environmental degradation all over the world has led to research, which resulted in the development of low emission vehicle and ultra low emission vehicle. In this work, performance of Low Mass Electrically Heated Metal Catalyst (LMEHMC) on the emission f
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Lukovnikova, L. V., L. A. Lelbiks, and E. E. Lesiovskaya. "EFFECT OF NICKEL AND ITS INSOLUBLE INORGANIC COMPOUNDS ON REPRODUCTIVE FUNCTION OF WHITE RATS." In The 16th «OCCUPATION and HEALTH» Russian National Congress with International Participation (OHRNC-2021). FSBSI “IRIOH”, 2021. http://dx.doi.org/10.31089/978-5-6042929-2-1-2021-1-326-329.

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Abstract. Introduction. The problem of women's health protection in enterprises producing and using nickel and its compounds is particularly relevant, since women make up a significant contingent of workers at some stages of production. Nickel and its compounds are used in the production of high-alloy steels, alloys with copper, chromium, aluminum, as a catalyst in the processes of hydrogenation of fats, in the production of batteries, nickel-plating of metal products. In case of violations of the technological process, labor protection conditions, workers may be exposed to nickel aerosol and
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