Recycling of Lead and Zinc from Gold and Silver Tailings

被引：0

作者：

Zhou Xinmu ^{[1
]}

Peng Huan ^{[1
]}

Cen Zhijun ^{[1
]}

机构：

[1] Nanchang Univ, Dept Chem, Nanchang 330031, Peoples R China

来源：

FUTURE MATERIAL RESEARCH AND INDUSTRY APPLICATION, PTS 1 AND 2 | 2012年 / 455-456卷

关键词：

leaching; lead; recycling;

D O I：

10.4028/www.scientific.net/AMR.455-456.840

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The recycling conditions of lead and zinc from gold and silver tailings by wet processing are as follows: leaching in confined condition and liquid to solid ratio of 5, at 90 similar to 950C, for 4h, using NaCl(300g / L), CaCl2 (105% of theoretical amount), the acidity is 130% theoretical amount and the granularity is 300 mesh size; sponge lead can be obtained by using reduced iron (110% of theoretical amount) at 75 similar to 850C for 3h; iron and zinc can be separated from hydrochloric acid system by TBP and then used for the preparation of the corresponding products; all the mother liquor can be recycled and the consumption amount of raw materials is low because there is no need for additional sodium chloride in the cycling. This processing method has better economic and environmental benefits.

引用

页码：840 / 844

页数：5