中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Study on mechanism of extracting cadmium with BEHDTPA-TOA by extreme hypothesis/correction method

文献类型:期刊论文

作者Zhang, DL; Ke, JJ; Lu, LZ
刊名ACTA CHIMICA SINICA
出版日期2006-06-14
卷号64期号:11页码:1106-1110
关键词extreme hypothesis correction mechanism solvent extraction bis(2-ethylhexyl)dithiophosphoric acid-trioctylamine cadmium
ISSN号0567-7351
其他题名Acta Chim. Sin.
中文摘要In extracting cadmium from aqueous solution of sulfate with bis(2-ethylhexyl)dithiophosphoric acid-trioctylamine in heptane, a reduction in pH could cause the decrease of extraction rate, then its increase. There were the transitions among several mechanisms in the extraction. On the basis of an extreme hypothesis, the effects of three mechanisms on extraction were discussed separately, with a preliminary equation of the extraction got. The action of such three mechanisms changing with pH was analyzed, and the rough and preliminary equation was corrected into a comparatively precise equation. The complex relationship among the three extraction mechanisms could be revealed by the mechanism contribution curves with a direct vision method. In certain pH ranges, the three mechanisms affected extraction result by the overlapping ways. The extreme hypothesis can be described below: in the system of several mechanisms, it could be considered extremely that under some conditions a certain mechanism takes key effect and others can be neglected.
英文摘要In extracting cadmium from aqueous solution of sulfate with bis(2-ethylhexyl)dithiophosphoric acid-trioctylamine in heptane, a reduction in pH could cause the decrease of extraction rate, then its increase. There were the transitions among several mechanisms in the extraction. On the basis of an extreme hypothesis, the effects of three mechanisms on extraction were discussed separately, with a preliminary equation of the extraction got. The action of such three mechanisms changing with pH was analyzed, and the rough and preliminary equation was corrected into a comparatively precise equation. The complex relationship among the three extraction mechanisms could be revealed by the mechanism contribution curves with a direct vision method. In certain pH ranges, the three mechanisms affected extraction result by the overlapping ways. The extreme hypothesis can be described below: in the system of several mechanisms, it could be considered extremely that under some conditions a certain mechanism takes key effect and others can be neglected.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]COMPLEXATION ; DERIVATIVES
收录类别SCI
原文出处://WOS:000238321400002
语种英语
WOS记录号WOS:000238321400002
公开日期2013-10-24
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/4085]  
专题过程工程研究所_研究所(批量导入)
作者单位1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
2.Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China
推荐引用方式
GB/T 7714
Zhang, DL,Ke, JJ,Lu, LZ. Study on mechanism of extracting cadmium with BEHDTPA-TOA by extreme hypothesis/correction method[J]. ACTA CHIMICA SINICA,2006,64(11):1106-1110.
APA Zhang, DL,Ke, JJ,&Lu, LZ.(2006).Study on mechanism of extracting cadmium with BEHDTPA-TOA by extreme hypothesis/correction method.ACTA CHIMICA SINICA,64(11),1106-1110.
MLA Zhang, DL,et al."Study on mechanism of extracting cadmium with BEHDTPA-TOA by extreme hypothesis/correction method".ACTA CHIMICA SINICA 64.11(2006):1106-1110.

入库方式: OAI收割

来源:过程工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。