Preliminary Analysis on the Mechanism ofBioleaching of Nicopyrite by Thiobacillus Ferrooxidans
氧化亚铁硫杆菌浸出镍黄铁矿机理的初步分析

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.