针铁矿除铁工艺改进  

Improvement of Goethite Precipitation Process

作　　者：孙天友 

机构地区：[1]株洲冶炼集团股份有限公司,湖南株洲412004

出　　处：《湖南有色金属》2014年第4期32-35,77,共5页Hunan Nonferrous Metals

摘　　要：某厂在对直接浸出炼锌工艺流程改进的基础上,对针铁矿除铁工艺流程进行了工业试验探索,采用还原-预中和-针铁矿除铁工艺,试验过程对还原、预中和、针铁矿除铁过程的工艺控制技术条件进行了研究,探索出针铁矿除铁的优化工艺控制条件。On the basis of improvement of the direct leaching process,the zinc smelter made industrial trail to goethite precipitation process,took the deoxidization-neutralization-goethite precipitation process to remove iron in zinc solution.The target is to test the influence of control condition to deoxidization-neutralization-goethite precipitation,explore the best control conditions to the goethite precipitation process.

关 键 词：针铁矿除铁 还原 预中和 氧气量 铜保留率 

分 类 号：TF803.26[冶金工程—有色金属冶金]