石灰与黄铁矿作用时间对抑制效果的影响及机理

THE EFFECT OF ACTION TIME OF LIME ON THE DEPRESSION OF PYRITE

用大冶铁矿和程潮铁矿的混合精矿为试样 ,研究了不同条件下石灰与黄铁矿作用时间对其抑制效果的影响 ,结果表明石灰的抑制作用随作用时间的延长而增加。石灰抑制作用与时间有关的原因是在不同的时间其抑制机理不同。

The bulk concentrates consisting mainly of pyrite and chalcopyrite from Daye and Chengchao Mines in Hubei Province were used to investigate the effect of action time of lime on the depression of pyrite. The results shown that the action time between lime and pyrite strongly influenced the depressing ability of lime on the pyrite and the depressive ability of lime increased with increasing the action time. The imcrease of depressing ability of lime with the action time is because that there were different mechanisms in different action time.