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The kinetics of vanadium extraction from spent hydroprocessing catalyst by leaching with sulfuric acid at atmospheric pressure
Wang, Hongjun1; Feng, Yali1; Li, Haoran2; Deng, Xiangyi1; Kang, Jinxing1
2019-02-14
Source PublicationMETALLURGICAL RESEARCH & TECHNOLOGY
ISSN2271-3646
Volume116Issue:2Pages:8
AbstractThe dissolution kinetics of vanadium from spent hydroprocessing catalyst was investigated by leaching with sulfuric acid at atmospheric pressure. The effects of stirring speed (400 800 rpm), initial sulfuric acid concentration (0.60 1.20 mol/l) and reaction temperature (373 423 K) on the vanadium dissolution were studied. The results showed that the vanadium dissolution ratio was practically independent of stirring speed at the investigated range, while increasing with the increases of sulfuric acid concentration and reaction temperature. The experimental data agreed quite well with the shrinking core model, with solid membrane diffusion as the rate controlling step. The apparent activation energy was calculated as 11.44 kJ/mol, and the reaction order with respect to sulfuric acid concentrations was determined to be 1.51. The kinetics equation of the leaching process was established as: 1 - 2x/3 - (1 - x)(2/3) = 0.067[H2SO4](1.51)exp [-11563/RT]t.
Keywordvanadium spent hydroprocessing catalyst sulfuric acid atmospheric pressure kinetics solid membrane diffusion
DOI10.1051/metal/2018073
Language英语
WOS KeywordHYDRODESULFURIZATION CATALYSTS ; BLACK SHALE ; PART I ; RECOVERY ; MOLYBDENUM ; SLAG ; MANAGEMENT ; SCHEELITE ; OXIDATION ; RESIDUE
Funding ProjectMajor Science and Technology Program for Water Pollution Control and Treatment[2015ZX07205-003] ; China Ocean Mineral Resources Research & Development Program[DY125-15-T-08] ; National Natural Science Foundation of China[21176026] ; National Natural Science Foundation of China[21176242]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationMajor Science and Technology Program for Water Pollution Control and Treatment ; China Ocean Mineral Resources Research & Development Program ; National Natural Science Foundation of China
WOS IDWOS:000458646800001
PublisherEDP SCIENCES S A
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/27877
Collection中国科学院过程工程研究所
Corresponding AuthorFeng, Yali
Affiliation1.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key State Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Hongjun,Feng, Yali,Li, Haoran,et al. The kinetics of vanadium extraction from spent hydroprocessing catalyst by leaching with sulfuric acid at atmospheric pressure[J]. METALLURGICAL RESEARCH & TECHNOLOGY,2019,116(2):8.
APA Wang, Hongjun,Feng, Yali,Li, Haoran,Deng, Xiangyi,&Kang, Jinxing.(2019).The kinetics of vanadium extraction from spent hydroprocessing catalyst by leaching with sulfuric acid at atmospheric pressure.METALLURGICAL RESEARCH & TECHNOLOGY,116(2),8.
MLA Wang, Hongjun,et al."The kinetics of vanadium extraction from spent hydroprocessing catalyst by leaching with sulfuric acid at atmospheric pressure".METALLURGICAL RESEARCH & TECHNOLOGY 116.2(2019):8.
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