氧化亚铁硫杆菌对难处理金矿石中常见硫化物单矿物的氧化  

BIO-OXIDATION OF SULPHIDE MINERALS IN REFRACTORY GOLD ORES BY THIOBACILLUS FERROOXIDANS

作　　者：杨洪英[1] 杨立[1] 赵玉山[1] 陈刚[1] 吕久吉[1] 范有静[1] 

机构地区：[1]东北大学材料与冶金学院,沈阳110006

出　　处：《有色金属》2001年第3期9-12,共4页Nonferrous Metals

基　　金：国家自然科学基金资助项目 ( 5 0 0 740 15 )

摘　　要：通过对难处理金矿石中各种硫化物单矿物进行的细菌氧化试验 ,发现在相同的条件下 ,硫化物晶体显微形貌变化、氧化腐蚀的时间截然不同。黄铁矿是最难氧化的硫化物矿物。黄铁矿细菌氧化全过程可分三个阶段 ,各阶段的黄铁矿显示不同的显微特征。黄铜矿是比较难于细菌氧化的矿物。除了毒砂之外 ,闪锌矿是易于细菌氧化的矿物 ,其它分别为方铅矿、黝铜矿。The biooxidation tests of some sulphide minerals in the refractory gold ore under the same conditions are conducted,It is found that microscopic characteristics of sulphide minerals and the time of crystal breaking are very different Pyrite is the most difficult mineral of biooxidation among them The bio-oxidation of pyrite is divided into three stages in the whole process In the process the microscopic characteristics of pyrites would change Chalcopyrite is more difficult bio-oxidized mineral Sphalerite is easy bio-oxidized, the following minerals are galena,tetrahedrite and stibnite

关 键 词：氧化亚铁硫杆菌 难处理金矿石 硫化物 细菌氧化 

分 类 号：TF831[冶金工程—有色金属冶金] TF18