微生物氧化脱砷浸取金的方法  

METHOD FOR ARSENIC REMOVAL AND GOLD LEACHING BY MICROBIAL OXIDATION

作　　者：田晓娟[1] 王艳[1] 杜德平[1] 彭立娥[2] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]北京大学分子与化学工程学院,北京100871

出　　处：《物探与化探》2008年第3期298-300,303,共4页Geophysical and Geochemical Exploration

摘　　要：选用了耐砷能力强、具有分解硫化矿能力的氧化亚铁硫杆菌1s、1号和马兰3种菌株作为实验用菌,对DBF矿样做氧化浸出实验,就其氧化过程中砷含量、pH变化和金的最佳浸出条件均做了详细的研究。给出细菌氧化金矿过程随时间变化的规律及金的最佳浸出条件。Three Thiobacillus ferrooxidans strains with strong arsenic resistance and capacity of sulfide ore decomposition, namely M1 s, 1# and Malan, were used for a microbial oxidation and leaching experiment on DBF ore from Shimian County, Sichuan Province. The arsenic content and pH change in the microbial oxidation process and the optimum leaching conditions of gold were studied intensively. The change of the microbial oxidation process with time and the optimum leaching conditions of gold are given in the paper.

关 键 词：含砷硫化物 微生物氧化脱砷 氧化亚铁硫杆菌 金矿石浸取率 

分 类 号：P632[天文地球—地质矿产勘探]