Precipitation of indium using sodium tripolyphosphate

被引：36

作者：

Jiang, Jibo ^{[1
]}

Liang, Duoqiang ^{[2
]}

Zhong, Qingdong ^{[1
]}

机构：

[1] Shanghai Univ, Shanghai Key Lab Modern Met & Mat Proc, Shanghai 200072, Peoples R China

[2] Guangxi Univ, Sch Resource & Met, Nanning 530004, Peoples R China

来源：

HYDROMETALLURGY | 2011年 / 106卷 / 3-4期

关键词：

Sodium tripolyphosphate; Indium; Pressure leaching liquor; Recovery; SOLVENT-EXTRACTION; SEPARATION;

D O I：

10.1016/j.hydromet.2010.12.009

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The main purpose of this study was to precipitate indium and extract indium from pressure oxidative leaching liquor using sodium tripolyphosphate. Various influential factors were evaluated in the paper, such as pH value, temperature, reaction time, molar ratio of Na5P3O10/indium and metal ions including Fe3+, Fe2+, Cu2+, Cd2+, Zn2+, etc. Over 95% of the indium was precipitated under the conditions employed, e.g. at a pH of 2.6, with a Na5P3O10 to indium molar ratio of 0.91, and 1.5 h reaction time. The chemical and X-ray diffraction analyses showed that the main component of the precipitates was NaIn3 (P3O10)(2)center dot 12H(2)O. The resulting precipitate was dissolved by using NaOH solution and hot sulfuric acid solution respectively, and then the solution was subjected to solvent extraction and cementation using zinc powder for the recovery of indium. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：165 / 169

页数：5

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