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 | |
| 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
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