Because of the enhanced oxidation of pyrrhotite and pyrite in the presence of thiobacillus ferrooxidans, their desulfurization speed and rate were increased markedly.

• 细菌的氧化作用使磁黄铁矿和黄铁矿的脱硫率明显升高，且随浸出时间的增长，脱硫速度也明显加快。