复杂型氧化铜矿生物硫化预处理基础研究  

Research on the Vulcanization of Complex Oxidized Copper Ore Using SRB

作　　者：曹俊雅[1] 鲁倍倍 曹淑洁 张佳姗 连丽君 张广积[2] Cao Junya;Lu Beibei;Cao Shujie;Zhang Jiashan;Lian Lijun(Department of Chemical Engineering and Technology,School of Chemical and Environmental Engineering,China University Of Mining ＆Technology（Beijing）,Beijing,Chin)

机构地区：[1]中国矿业大学(北京)化学与环境工程学院化学工程系,北京100083 [2]中国科学院过程工程研究所中国科学院绿色过程与工程重点实验室,北京100190

出　　处：《矿产综合利用》2018年第4期140-146,共7页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金资助项目(21306225;21427814);北京高校青年英才计划项目(YETP0936);中央高校基本科研业务费专项基金资助(2009QH14)

摘　　要：为了有效回收复杂型氧化铜矿,可以先对氧化矿进行硫化预处理,再进行浮选回收。本文采用硫酸盐还原菌(Sulfate Reducing Bacteria,SRB)还原硫酸盐的方法对矿物进行生物硫化预处理,针对某复杂型氧化铜矿进行研究。试验考察了生物硫化工艺参数:矿石粒度、生物硫化剂用量(倍数)、矿浆浓度、硫化温度及硫化时间等因素对矿物生物硫化的影响,采用单因素分析法,最终得出较佳的生物硫化预处理条件:矿石粒度-0.150 mm、矿浆浓度为4%、生物硫化剂用量为理论值的2倍、硫化温度为50℃、硫化时间为6 h。In order to recycle oxidized copper ore effectively, the oxidized ore can be treated by vulcanization and then recovered by flotation. Producing vulcanizing agent by reduction method of Sulfate Reducing Bacteria （SRB） is put forward. A new technology for the vulcanization of oxidized copper ore by using curing agents produced biologically with sulfate-reducing bacteria （SRB） is proposed. In this work, the effects of particle size, curing agent dosage, pulp density, curing temperature and vulcanization time on suffixation rate are investigated. And the optimum test conditions obtained are as follows： particle size is -0.150 mm, pulp density is 4%, the dosage of curing agent is 2 times of the theoretical value, curing temperature is 50℃ and curing time is 6 h.

关 键 词：生物硫化 硫酸盐还原菌 氧化铜矿 硫化条件 

分 类 号：TD952[矿业工程—选矿]