摘要
对生物浸出镍黄铁矿的过程进行了研究,得到以下一些结论:(1) 吸附在矿物表面的细菌对矿物的溶解起着最重要的作用,溶液中游离菌的作用较小,而Fe3+对镍黄铁矿的化学溶解作用较弱;(2) Fe2+主要是被溶液中的游离菌氧化的;(3) 硫的不完全氧化将导致溶液pH的升高.
Bioleaching of Nicopyrite was studied and the following conclusions were drawn from the experiments: (1) The bacteria attached on the surface of the minerals had the most important contribution to the dissolution of Nicopyrite, the free bacteria in the solution had minor contribution; (2) Fe2+ was mainly oxidized by free bacteria in the solution; (3) The incomplete oxidation of S can lead to rising of pH value in solution.
出处
《过程工程学报》
CAS
CSCD
北大核心
2001年第4期374-377,共4页
The Chinese Journal of Process Engineering
基金
国家重点自然科学基金资助项目(编号:59834150)
关键词
镍黄铁矿
生物浸出
氧化亚铁硫杆菌
吸附菌
Nicopyrite
bioleaching
thiobacillus ferrooxidans
adhered bacteria