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Kinetics of iron(III) extraction with primary amine and TBP using a modified rotating diffusion cell
Alternative TitleHydrometallurgy
Meng, MX; Yu, SQ; Chen, JY
1996-05-01
Source PublicationHYDROMETALLURGY
ISSN0304-386X
Volume41Issue:1Pages:55-70
AbstractMetallic membranes with minipores have been used in the rotating disc diffusion cell (RDC) for the quantitative study of the effect of diffusion on the kinetics of solvent extraction. A study of the mass transfer of KCI through the membrane at different rotational speeds showed that the hydrodynamic conditions on the both sides of the membrane are reproducible. A kinetic study of iron(III) extraction from sulfate solutions with primary amine N-1923 and TBP (tri-butyl phosphate) was performed with the modified RDC after cell calibration. The results showed that the rate-limiting step in the extraction process is chemical reactions at the interfaces. The effects of various parameters on the rate of extraction suggested that the reaction order may be 1, 1, - 1 and 0 with respect to the concentrations of iron(III), amine sulfate, hydrogen ion and TBP, respectively. Due to the change in the reaction mechanism, the rate of extraction increased by one order of magnitude with the addition of TBP to the primary amine system.; Metallic membranes with minipores have been used in the rotating disc diffusion cell (RDC) for the quantitative study of the effect of diffusion on the kinetics of solvent extraction. A study of the mass transfer of KCI through the membrane at different rotational speeds showed that the hydrodynamic conditions on the both sides of the membrane are reproducible. A kinetic study of iron(III) extraction from sulfate solutions with primary amine N-1923 and TBP (tri-butyl phosphate) was performed with the modified RDC after cell calibration. The results showed that the rate-limiting step in the extraction process is chemical reactions at the interfaces. The effects of various parameters on the rate of extraction suggested that the reaction order may be 1, 1, - 1 and 0 with respect to the concentrations of iron(III), amine sulfate, hydrogen ion and TBP, respectively. Due to the change in the reaction mechanism, the rate of extraction increased by one order of magnitude with the addition of TBP to the primary amine system.
KeywordSolvent-extraction Carboxylic-acids Metals
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSOLVENT-EXTRACTION ; CARBOXYLIC-ACIDS ; METALS
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:A1996UP37900004
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5977
Collection研究所(批量导入)
AffiliationCHINESE ACAD SCI,INST CHEM MET,BEIJING,PEOPLES R CHINA
Recommended Citation
GB/T 7714
Meng, MX,Yu, SQ,Chen, JY. Kinetics of iron(III) extraction with primary amine and TBP using a modified rotating diffusion cell[J]. HYDROMETALLURGY,1996,41(1):55-70.
APA Meng, MX,Yu, SQ,&Chen, JY.(1996).Kinetics of iron(III) extraction with primary amine and TBP using a modified rotating diffusion cell.HYDROMETALLURGY,41(1),55-70.
MLA Meng, MX,et al."Kinetics of iron(III) extraction with primary amine and TBP using a modified rotating diffusion cell".HYDROMETALLURGY 41.1(1996):55-70.
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