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

作　　者：徐竞[1] 孙伟[1] 张芹[1] 刘辉[1] 胡岳华[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《矿冶工程》2003年第6期27-29,37,共4页Mining and Metallurgical Engineering

基　　金：国家自然科学基金重点项目 (50 2 340 1 0 );国家自然科学基金项目 (50 30 4 0 1 3)

摘　　要：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.

关 键 词：有机抑制剂 硫化矿 浮选 分离 黄铁矿 磁黄铁矿 

分 类 号：TD923.14[矿业工程—选矿]