吉首大学学报（自然科学版）2003，Vol.24Issue(3)：45-49,5.
锌焙砂氨法制取高纯锌
Preparation of High- Purity Zinc From Zinc Calcine by an Ammonia Process
杨声海 1唐谟堂 1何静 1姚维义1
作者信息
- 1. 中南大学冶金科学与工程学院,湖南,长沙,410083
- 折叠
摘要
Abstract
In this article a new process of using ammonia and ammonium chloride solution to leach zinc calcine and electrowinning high - pu-rity zinc has been developed successfully. The average leaching ratio of zinc was about 93 %. The impurities, such as Cu, Cd and Pb, in thefiltrate were cemented out completely by using zinc powder with two - stage countercurrent. At different current density, the current efficiencywas higher than 93.8% .During electrowinning cell voltage was about 3.0 V and power consumption ranged from 2.550 to 2.650 kW perkilogram zinc. The zinc content in the electrowinned zinc was more than 99.999%, and the contents of the impurities of Cu, Cd, Co, Ni, Fe,As and Sb were lower than 0.000 1% respectively, and Pb was lower than 0.000 3 %.关键词
高纯锌/氨/氯化铵/锌焙砂Key words
high - purity zinc/ammonia/ammonium chloride/zinc calcine分类
矿业与冶金引用本文复制引用
杨声海,唐谟堂,何静,姚维义..锌焙砂氨法制取高纯锌[J].吉首大学学报（自然科学版）,2003,24(3):45-49,5.
