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Extraction kinetics of tantalum by MIBK from pulp using Lewis cell
Yang, Xiuli1; Wang, Xiaohui2; Wei, Chang1; Zheng, Shili2; Sun, Qing3; Wang, Dong4
2013
Source PublicationHYDROMETALLURGY
Volume131Pages:34-39
AbstractThe kinetics of the forward extraction of TaF72- by MIBK from stock was investigated using a Lewis cell. Different parameters such as the tantalum concentration, fluoride ion concentration, hydrogen ion concentration, and MIBK concentration, as well as extracting temperature were studied separately to examine their effect on the extraction rate of TaF72-, and a rate equation was deduced based on the analysis. The experimental results demonstrate that the rate of TaF72- extraction is controlled by a chemical reaction at the interface rather than in the bulk phase. Further analysis suggests that the TaF72- extraction rate is first order with respect to MIBK concentration, hydrogen ion concentration, and tantalum concentration, and zero order with respect to fluoride ion concentration, respectively. The mechanism of TaF72- extraction is controlled by the slow distribution of the H center dot MIBK+ at the interface to form HTaF7 center dot MIBK- (i) between the pulp phase and the interface. (C) 2012 Elsevier B.V. All rights reserved.
KeywordPulp Extraction Kinetics Tantalum Mibk Lewis Cell
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordSINGLE DROP TECHNIQUE ; SOLVENT-EXTRACTION ; MECHANISM ; COMPLEXES ; D2EHPA ; PHASE ; ACID
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000315134500005
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13454
Collection研究所(批量导入)
Affiliation1.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
4.Beijing Co, China Petr Engn Co Ltd, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Yang, Xiuli,Wang, Xiaohui,Wei, Chang,et al. Extraction kinetics of tantalum by MIBK from pulp using Lewis cell[J]. HYDROMETALLURGY,2013,131:34-39.
APA Yang, Xiuli,Wang, Xiaohui,Wei, Chang,Zheng, Shili,Sun, Qing,&Wang, Dong.(2013).Extraction kinetics of tantalum by MIBK from pulp using Lewis cell.HYDROMETALLURGY,131,34-39.
MLA Yang, Xiuli,et al."Extraction kinetics of tantalum by MIBK from pulp using Lewis cell".HYDROMETALLURGY 131(2013):34-39.
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