新型有机抑制剂RC对黄铁矿和磁黄铁矿的抑制作用研究

Research on Depression Mechanism of Pyrite and Pyrrhotite by New Organic Depressant RC

研究了有机抑制剂RC对黄铁矿、磁黄铁矿的抑制作用。实验结果表明 ,RC对黄铁矿和磁黄铁矿均有较强的抑制作用。红外吸收光谱证明 :RC分子结构中含有—COO- 、—SO3- 、—OH等多种官能团 ,黄药与RC之间存在一种竞争吸附的关系 ,在pH为10的环境中 ,吸附对RC有利 ,由于RC携带众多的亲水集团 ,使得矿物表面更易亲水 ,进而抑制矿物。

The mechanism of organic depressant RC depressing pyrite and pyrrhotite is investigated. The test results showed that RC has a stronger depression effect on pyrite and pyrrhotite. Infrared adsorption spectra demonstrates that there are a number of function groups such as -COO -,-SO 3 - and -OH - in the molecular structure of RC. RC and xanthate compete in their adsorption onto sulfide minerals. At pH=10, the adsorption of RC onto sulfide minerals is favoured. RC carries a number of hydrophilic funtion groups to make the surfaces of the two sulfide minerals more hydrophilic, resulting in their depression.