苯乙烯膦酸与脂肪醇对金红石浮选的影响  

EFFECT OF INTERACTIONS BETWEEN STYRYL PHOSPHORIC ACID AND ALIPHATIC ALCOHOL ON RUTILE FLOTATION

作　　者：彭勇军[1] 李晔[1] 许时[1] 

机构地区：[1]武汉工业大学非金属矿设计研究所

出　　处：《中国有色金属学报》1999年第2期358-362,共5页The Chinese Journal of Nonferrous Metals

摘　　要：用苯乙烯膦酸与脂肪醇组成的复合捕收剂浮选金红石矿取得了较好效果。为了解释复合捕收剂在金红石浮选中的协同作用，进行了Ｈａｌｉｍｏｎｄ管浮选试验、捕收剂溶液表面张力的测量、金红石表面吸附量的测定以及Ｘ射线光电子能谱的测试，特别是角分辨Ｘ射线光电子能谱的测试，直接证明了复合捕收剂在固液界面和液气界面的相互作用及取向。试验结果表明，苯乙烯膦酸在金红石表面发生了化学吸附，脂肪醇与苯乙烯膦酸相互联结，其疏水基指向水相，从而增加了金红石表面的疏水性，提高了浮选回收率。From experimental study, a composite collector, composed of styryl phosphoric acid (SPA) and octanol had been found to be an efficent and selective flotation collector for rutile. To explain the synergistic effect of composite collector on the flotation of rutile, microflotation, surface tension measurement, adsorption measurement, Xray photoelectron spectroscopy (XPS) and angle resolution Xray photoelectron spectroscopy(ARXPS) had been made. Direct evidence had been obtained regarding interaction and orientation of composite collector at the solidliquid and liquidgas interfaces. It seems that while SPA chemically adsorbs on the rutile surface, octanol associates with SPA, pointing their long hydrocarbon chains towards bulk solution. In this way rutile surface hydrophobicity is enhanced and its flotation response is improved.

关 键 词：复合捕收剂 金红石 苯乙烯膦酸 脂肪醇 浮选 

分 类 号：TD923[矿业工程—选矿] TD97