Dynamic corrosion of copper-nickel sulfide by Acidithiobacillus ferrooxidans  

作　　者：佟琳琳 姜茂发 杨洪英 俞娟 范有静 张耀 

机构地区：[1]School of Materials and Metallurgy,Northeastern University

出　　处：《中国有色金属学会会刊：英文版》2009年第2期438-445,共8页Transactions of Nonferrous Metals Society of China

基　　金：Project(2006AA06Z127) supported by the National Hi-tech Research and Development Program of China;Projects(50674029, 50274024) supported by the National Natural Science Foundation of China;Project(20060145015) supported by Doctoral Program Foundation of Ministry of Education of China;Project(20052030) supported by the Natural Science Foundation of Liaoning Province, China

摘　　要：The dynamic corrosion process of bio-oxidation of copper-nickel sulfide from Karatungk in northern Xinjiang Province of China was studied. The polished wafer of the copper-nickel sulphide was used to carry on a series of oxidation corrosion experiment by Acidithiobacillus ferrooxidans. The changes of superficial corrosion appearance and the mineral dynamic corrosion process were discovered by microscope observation. Then,the galvanic cell model was established,and the bio-oxidation activation order of typical copper-nickel sulphide minerals was ascertained as pyrrhotite>pentlandite>chalocopyrite.The dynamic corrosion process of bio-oxidation of copper-nickel sulfide from Karatungk in northern Xinjiang Province of China was studied. The polished wafer of the copper-nickel sulphide was used to carry on a series of oxidation corrosion experiment by Acidithiobacillus ferrooxidans. The changes of superficial corrosion appearance and the mineral dynamic corrosion process were discovered by microscope observation. Then, the galvanic cell model was established, and the bio-oxidation activation order of typical copper-nickel sulphide minerals was ascertained as pyrrhotite〉pentlandite〉chalocopyrite.

关 键 词：铜镍硫化物 动态腐蚀 生物氧化 腐蚀过程 磁黄铁矿 显微镜观察 新疆北部 氧化亚铁 

分 类 号：TG172[金属学及工艺—金属表面处理]