锌焙砂中浸渣氧压酸浸新工艺探讨

来源期刊：有色金属2011年第2期

论文作者：巨佳 王吉坤 张向阳 徐静 谢红艳 贺山明

文章页码：159 - 162

关键词：湿法炼锌； 锌焙砂； 中浸渣； 氧压酸浸

Key words：wet zinc smelting； zinc calcine； residues from the neutral leaching； oxidizing pressure leaching

摘    要：锌焙砂一般采用中性—低酸—高酸三段浸出工序,该工艺在酸浸出中浸渣的过程中,铁也大量浸出进入到溶液中,增加了后续除铁的难度。本文探讨了氧压酸浸与传统湿法炼锌相结合的工艺的可行性,提出了锌焙砂中浸渣一段氧压浸出和两段氧压浸出新工艺。

Abstract: Generally,zinc calcine general adopts neuter-low acid-high acid three segments in leaching process.Iron would be leaching into the solution in the process of acid leaching which would increase the difficulty of removing iron.This paper discusses the feasibility of the residues from the neutral leaching by oxidic-acidic pressure leaching process,and propose a new technology of one oxidizing pressure and two oxidizing pressure leaching process.