Extraction separation of germanium with hydroxamic acid HGS98

被引：0

作者：

Shu-fang Tang

Chun-shan Zhou

Xin-yu Jiang

Chun-lei Zhao

机构：

[1] Central South University of Technology,College of Chemistry and Chemical Engineering

来源：

Journal of Central South University of Technology | 2000年 / 7卷

关键词：

extraction; separation; germanium; hydroxamic acid HGS98;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The extraction separation of germanium from indium raffinate in hydrometallurgical zinc process was discussed. The conditions and mechanism of the extraction with hydroxamic acid HGS98 have been investigated in detail. The results show that using 2% (mass fraction) hydroxamic acid HGS98 and 5% D2EHPA as synergist, germanium is extracted (1-stage) over 99% in 5 min at phase ratio (Vo: Va) of 1:5 from indium raffinate with original acidity. Then, using 2 mol·L−1 NH4F as strip liquor, the stripping recovery is over 98% in 15 min at phase ratio of 1:1. This process has the following advantages: easy to operate, high recovery and selectivity, and lower investment cost. It provides a new way to recover rare metal — germanium from metallurgical spent residues.

引用

页码：40 / 42

页数：2