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Zaheri, Parisa, Davarkhah, Reza, Rouhani, Seyed Hamid Reza. (1401). Selective Extraction of Molybdenum from the spent HDS catalysts using Cyanex272 extractant. نشریه علمی دانشگاه سیستان و بلوچستان, 1(1), 17-26. doi: 10.22111/cpd.2022.42535.1001
Parisa Zaheri; Reza Davarkhah; Seyed Hamid Reza Rouhani. "Selective Extraction of Molybdenum from the spent HDS catalysts using Cyanex272 extractant". نشریه علمی دانشگاه سیستان و بلوچستان, 1, 1, 1401, 17-26. doi: 10.22111/cpd.2022.42535.1001
Zaheri, Parisa, Davarkhah, Reza, Rouhani, Seyed Hamid Reza. (1401). 'Selective Extraction of Molybdenum from the spent HDS catalysts using Cyanex272 extractant', نشریه علمی دانشگاه سیستان و بلوچستان, 1(1), pp. 17-26. doi: 10.22111/cpd.2022.42535.1001
Zaheri, Parisa, Davarkhah, Reza, Rouhani, Seyed Hamid Reza. Selective Extraction of Molybdenum from the spent HDS catalysts using Cyanex272 extractant. نشریه علمی دانشگاه سیستان و بلوچستان, 1401; 1(1): 17-26. doi: 10.22111/cpd.2022.42535.1001

Selective Extraction of Molybdenum from the spent HDS catalysts using Cyanex272 extractant

Chemical Process Design
دوره 1، شماره 1، شهریور 2022، صفحه 17-26    اصل مقاله (1.1 M)
نوع مقاله: Research Article
شناسه دیجیتال (DOI): 10.22111/cpd.2022.42535.1001
نویسندگان
Parisa Zaheri* 1؛ Reza Davarkhah1؛ Seyed Hamid Reza Rouhani2
1Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute
2School of Chemical Engineering, College of Engineering, University of Tehran
چکیده
Selective extraction of Mo from the spent HDS (Hydrodesulfurization) catalysts was studied using Cyanex272 extractant. The required experiments were designed by RSM (Response Surface Methodology) method according to CCD (Central Composition Design), and four independent parameters were examined, including Cyanex272 concentration, H+ concentration of leach solution, temperature, and Mo concentration in the leach solution. A quadratic equation was derived for the prediction of Mo recovery with R2 equal to 0.98, which verified this equation for fitting the experimental results. The value of Mo recovery in different conditions showed that the effect of the leach solution acidity is insignificant at a low concentration of Cyanex272. The optimum value for Cyanex272 concentration, H+ concentration of leach solution, temperature, and Mo concentration was obtained at 0.27 M, 3.4 M, 30 ˚C, and 279.74 mg/L, respectively. The Mo recovery was 99.05% in these conditions, which had a 0.74 error from the software predicted value.
کلیدواژه‌ها
Molybdenum؛ HDS catalysts؛ Solvent extraction؛ Response surface methodology
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تعداد مشاهده مقاله: 359
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