(中南工業(yè)大學(xué)礦物工程系， 長沙 410083)
摘 要: 采用接觸角測定、 動電位測定、 吸附量測定及紫外光譜等多種手段研究了不同堿性介質(zhì)中CTP與礦物表面的作用機理。結(jié)果表明CTP陰離子與黃鐵礦表面發(fā)生化學(xué)吸附，而與黃銅礦表面作用較弱；在混合精礦體系中，CTP在選擇性吸附于黃鐵礦表面的同時解吸了礦物表面的黃藥。 在鈣離子存在條件下，CTP與黃鐵礦和黃銅礦作用差距變大。
關(guān)鍵字: 浮選分離 有機抑制劑 黃鐵礦 黃銅礦
（Department of Mineral Engineering,Central South University of Technology, Changsha 410083, P. R. China）
Abstract:The interaction mechanism of CTP with pyrite and chalcopyrite has been studied using the contact angle test, Zeta-potential test and the adsorption of reagents. The results showed that the anion of CTP has strong interaction on the surface of pyrite and has weak interaction on the surface of chalcopyrite, CTP can selectively adsorb on the surface of pyrite as well as dis-adsorb the xanthate on the pyrite surface in the mixed concentrate pulp. The difference between interaction of CTP and pyrite and that of CTP and chalcopyrite become larger in the presence of Ca2+.
Key words: flotation separation new organic depressant &n, bsp; pyrite chalcopyrite
