Metal Extraction Through Chlorine Metallurgy
Metal Extraction Through Chlorine Metallurgy
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DOI：
10.1080/08827509708914136
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发表时间：
1996
影响因子：
5
通讯作者：
P. K. Jena;E. Brocchi
中科院分区：
文献类型：
--
作者：
P. K. Jena;E. Brocchi
氯化是从有色金属矿石和精矿中提取有色金属的一个重要工艺步骤。一些重要的氯化剂是气态氯、盐酸、氯化铁、四氯化碳和一些碱或碱性氯化物，如NaCl、CaCl2和NH4C1。由于这些氯化剂在中等温度下具有较高的反应活性，可选择性地氯化所需的金属值，而且易于获得，成本低，因此在开发矿石和矿物、制备纯金属氯化物以及从废料和其他废物中回收金属值方面得到了广泛的应用。本文简要地讨论了几种重要金属提取过程中各阶段氯化过程的化学性质。概述了氯冶金的一些工业工艺。综述了近年来在干法和水氯化法处理某些金属废水方面的研究进展。
Abstract Chlorination has been an important process step in the extraction of many nonferrous metals from their ores and concentrates. Some of the important chlorinating agents are gaseous chlorine, hydrochloric acid, ferric chloride, carbon tetrachloride and some alkali or alkaline chlorides like, NaCl, CaCl2 and NH4C1. Because of their high reactivity at a moderate temperature, selectivity in chlorination of the desired metal values and their easy availability with low cost, these chlorinating agents are being widely used in opening up the ores and minerals, for preparaton of pure metal chlorides and in recovery of metal values from the scrap and other wastes. In this paper, the chemistry of the chlorination processes in various stages of the extraction of some important metals, has been discussed briefly. Some of the industrial processes using Chlorine Metallurgy have been outlined. A review of the research and developmental studies made in recent years, on dry and aqueous chlorination of some metal ox...