Extraction of Chloride Ions from Zinc-Bearing Waste Lixivium by Trioctyl Amine (TOA)

被引：10
|
作者：
Lv, Ying [1 ,2 ]
Jia, Yongzhong [1 ,3 ]
Zhang, Chao [1 ,2 ]
Cui, Zhenhua [1 ,2 ]
Lin, Pengcheng [3 ]
Jiang, Xiaoping [3 ]
Jing, Yan [1 ]
机构：
[1] Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
[3] Qinghai Univ Nationality, Chem & Life Sci Coll, Xining, Peoples R China
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2014年 / 49卷 / 08期
关键词：
trioctylamine; extraction; chloride ion; REACTIVE EXTRACTION; SOLVENT-EXTRACTION; AQUEOUS-SOLUTIONS; ACID; SEPARATION;
D O I：
10.1080/01496395.2013.873049
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This paper presents research on separating Cl- from zinc-bearing waste lixivium by using trioctylamine as an extractant, 2-octanol as a solvent, and sulfonated kerosene as a diluent. The effects of trioctylamine concentration, organic/aqueous phase ratio, extracting stages, and waste lixivium pH were investigated, and the process of stripping was also discussed. The optimal conditions were achieved. The extraction efficiency, separation factor, and stripping efficiency were calculated with optimal values of 99.47%, 595, and 99.99%, respectively. Besides, the extractant regenerated after stripping was observed without the emulsifying phenomenon. The mechanism of extraction and stripping was also discussed.
引用
收藏
页码：1192 / 1197
页数：6
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