CHINA MINE ENGINEERING

In this paper, multi-group tests on the monominerals and artificial mixture of pyrite and arsenopyrite are conducted. The results show that y-As can effectively inhibit arsenopyrite in a suitable pH range, greatly reducing the floatability of arsenopyrite and effectively realizing the separation of sulfur and arsenic. The inhibition mechanism of y-As is preliminarily proved by analyzing the infrared spectra of the inhibitor and the Zeta potential change of the minerals before and after the action of the inhibitor. It's also found in the application of y-As in industrial production that it has an obvious inhibitory effect on arsenopyrite minerals.