低品位黄铜矿的磁场强化细菌浸出

It is experimentally studied that the bacterial leaching for the low-grade chalcopyrite intensified by magnetic field in this paper. The effect of magnetic field on bacterial growth and bacterial leaching is mainly studied. The results show that the 9K culture medium after magnetization treatment can promote bacterial breeding and oxidation activity. Furthermore, the leaching rate of Cu and Fe in low-grade chalcopyrite is boosted by means of the treatment. Underlying mechanism of comprehensive leaching by magnetization treatment is that the structure of water changed in the existence of magnetic field promotes the dissolution of oxygen and mineral ingredient and the penetrability of biological membrane in bacterial cell.