Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 1    No. 1    October 1991

[PDF Download]    [Flash Online]    

    

QUANTUM CHEMICAL MECHANISM ON THE SURFACE OXIDATION AND FLOTATION OF SULPHIDE MINERALS
Wang Dianzuo  Long Xiangyun   Sun Shuiyu

Central South University of Technology, Changsha 410083, China

Abstract:The surfaces of galena and pyrite, the adsorption of oxygen, and the reactions of ethyl xanthate on the sulfides were studied using quantum chemical calculations. In addition, the surface electron structures of the minerals were discussed. According to the results, the mechanisms of ionic exchange reaction and dixanthogen adsorption for the xanthate flotation of galena and pyrite were explained. The important role of oxygen in collector and collectorless flotation processes was also investigated.

 

Key words: sulphide minerals,  oxidation,  flotation,  galena,  pyrite,  quantum chemistry

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f-ysxb@mail.csu.edu.cn