云南某锰银矿特征及湿法分离实验研究  

Characteristics and Hydrometallurgical Processing of Manganese-Silver Ore from Yunnan

作　　者：赵成东[1,2] 王宁[1] 顾汉念[1] 温汉捷[3] 田元江[1] 

机构地区：[1]中国科学院地球化学研究所地球内部物质高温高压实验室,贵州贵阳550002 [2]中国科学院大学,北京100049 [3]中国科学院地球化学研究所矿床地球化学国家重点实验室,贵州贵阳550002

出　　处：《矿冶工程》2015年第2期111-113,116,共4页Mining and Metallurgical Engineering

基　　金：贵州重大专项资助(黔科合重大专项字[2012])6016)

摘　　要：对云南某锰银矿的主要化学组成及矿石结构特征进行了研究，选用硫酸亚铁作还原剂对银锰湿法分离进行了实验研究。结果表明：当磨矿细度为-0．074mm粒级占70％～80％，硫酸初始浓度为250g／L，硫酸亚铁加入量为理论值的1．1倍，液固比为5：1，90℃恒温水浴中反应2h时，锰浸出率达89％，银损失率小于1％，可较好分离银与锰。Based on the studies of chemical compositions and ore texture of manganese-silver ore from Yunnan Province, experiments were carried out on the hydrometallurgical method with ferrous sulfate as reductant, for separating manganese and silver from manganese-silver ore. With a grinding fineness of -0.074 mm 70% - 80%, the initial sulfuric acid concentration of 250 g/L, addition of ferrous sulfate i. i times as much as the theoretical value, liquid/solid ratio at 5 ： 1, the leaching experiment was carried out in a constant temperature water bath at 90℃ for 2 h, resulting in a good separation between silver and manganese, with manganese leaching rate up to 89% and loss rate of silver less than 1%.

关 键 词：锰银矿 湿法分离 银 锰 银锰分离 

分 类 号：TF111[冶金工程—冶金物理化学]