Preliminary examination of electrochemical and spectroscopic features of trithiocarbonate collectors for sulfide mineral flotation  

作　　者：R. Du Plessis 1, J.D. Miller 1, J.C.Davidtz 2 1. Department of Metallurgical Engineering, University of Utah, Salt Lake City, Utah 84102, USA 2. Department of Materials Science and Metallurgical Engineering, University of Pretoria, Pretoria 0002 

出　　处：《中国有色金属学会会刊：英文版》2000年第S1期12-18,共7页Transactions of Nonferrous Metals Society of China

摘　　要：The redox potentials of xanthate/dixanthogen (dithiocarbonate/di dithiocarbonate, DTC/(DTC) 2) and trithiocarbonate/di trithiocarbonate (TTC/(TTC) 2) couples have been measured for the potassium salts. The spectroscopic characteristics of these sulfide mineral collectors were determined by FTIR and UV analysis. Electrochemically controlled contact angle measurements at a pyrite surface provided the basis to analyze the effect of the functional group ( O CS 2 versus S CS 2) on the hydrophobic surface state. Results from this preliminary examination are discussed with respect to the nature of collector adsorption and the pyrite flotation response.The redox potentials of xanthate/dixanthogen (dithiocarbonate/di dithiocarbonate, DTC/(DTC) 2) and trithiocarbonate/di trithiocarbonate (TTC/(TTC) 2) couples have been measured for the potassium salts. The spectroscopic characteristics of these sulfide mineral collectors were determined by FTIR and UV analysis. Electrochemically controlled contact angle measurements at a pyrite surface provided the basis to analyze the effect of the functional group ( O CS 2 versus S CS 2) on the hydrophobic surface state. Results from this preliminary examination are discussed with respect to the nature of collector adsorption and the pyrite flotation response.

关 键 词：redox potential TRITHIOCARBONATE COLLECTOR SULFIDE MINERAL FLOTATION 

分 类 号：TD92[矿业工程—选矿]