一段锌氧压浸出与焙烧浸出工艺的比较  

Comparison between One-Stage Pressure Oxidative Leaching and Roasting and Leaching

作　　者：左小红[1] 何醒民[1] 

机构地区：[1]长沙有色冶金设计研究院有限公司,湖南长沙410011

出　　处：《铜业工程》2015年第4期62-66,70,共6页Copper Engineering

摘　　要：着重介绍了锌氧压浸出和焙烧浸出工艺原理、工艺方法及工艺流程,对锌氧压浸出中应用较多的一段锌氧压浸出工艺和二段逆流锌氧压浸出工艺作了详细分析,说明了一段锌氧压浸出除了对富含镓锗稀贵金属特殊矿的处理不具优势外,其他均优于二段锌氧压浸出;通过对一段锌氧压浸出和焙烧浸出工艺流程及技术指标的详细比较和分析,得出一段锌氧压浸出流程短捷,工序少;锌浸出率明显高于焙烧浸出工艺;总体投资比焙烧浸出工艺要减少6%以上,设备装机容量比焙烧浸出工艺要低20%~25%,总体耗电量低。阐明了锌氧压浸出工艺具有综合回收好,生产成本低,环境保护好,渣处理简便的优势,是一种环保、节能的清洁生产工艺,可以解决国内企业面临的环保及生产成本高的问题。The paper introduces the principle, method and technological process of the zinc pressure oxidative leaching and the roasting and leaching. The detailed analysis of process of the one-stage pressure oxidative leaching and the two-stages back flow pressure, oxidative leaching of zinc which are both frequently applied in the process of zinc pressure oxidative leaching, indicates the former is superior to the latter except in the area of dealing with special ore rich in gallium and germanium rare metals. The detailed comparison and analysis in technical process and indexes between the one-stage zinc pressure oxidative leaching and the roasting and leaching shows the advantages of the former. The procedure of one-stage pressure oxidative leaching is briefer and more concise than roasting and leaching let alone its higher leaching efficiency. Other advantages such as over 6% cheaper investment, 20%-25% reduction of equipment installed capacity and less power consumption demonstrate the zinc pressure oxidative leaching is one kind of environmental friendly and energy-saving technology which may solve domestic enterprises＇ problems of environment issue and high cost since it has the superiority of good comprehensive recovery, low cost and easy slag treatment.

关 键 词：氧压浸出 焙烧浸出 生产成本 环境保护 渣处理 

分 类 号：TF813[冶金工程—有色金属冶金]