富镁软锰矿中镁的预脱除实验研究  

Research on Pre-removal of Mg in Rich Mg Pyrolusite

作　　者：耿叶静[1] 刘静[1] 周娥[2] 陈思明[2] 段东平[2] 夏光祥[2] 

机构地区：[1]中国科学院唐山高新技术研究与转化中心,河北唐山063000 [2]中国科学院过程工程研究所,北京100190

出　　处：《中国锰业》2012年第2期29-31,38,共4页China Manganese Industry

摘　　要：河北省唐山迁西地区的软锰矿成分复杂,含有较高的镁含量,必须将镁去除才可进行后续利用。该实验采用在软锰矿浸锰流程之前,对于其中的镁进行预脱除。实验结果表明:在最优条件下,该方法的脱镁率可以达到78%以上。脱镁处理后的软锰矿浸锰实验结果表明:镁脱除后的软锰矿的Mn浸出率未受到影响,Mn/Mg大幅提高,而且浸出过程中的酸耗降为脱镁处理后的1/2,具有较好的工业推广价值。Pyrolusited from Qianxi district, Hebei province contains high Mg which should be removal before it is used. In this study, M g was pre-removal before pyrolusite leaching process. The pre-removal of M g experiment results shows that under optimal conditions, the leaching ratio of M g can reach more than 75 %. Magnesium-re-moval-pyrolusite leaching experiment results shows that after M g pre-removal treatment, M n leaching ratio was not affected, Mn/Mg is much higher and acid consumption that was reduced to 1/2 in pyrolusite of leaching pro- cess. It has a better perspective in industry.

关 键 词：富镁软锰矿 除杂 脱镁 锰镁比 

分 类 号：TF792[冶金工程—钢铁冶金]