会议专题

The Role of Molecular Structure of Surfactants on the Interfacial and Flotation Behavior of Oxide Minerals Particularly Quartz

Understanding how cationic surfactants affect the interfacial behavior of quartz is important in mineral processing and environmental engineering. This paper presents the results of a study of the effect of the molecular structure of cationic surfactants on the interfacial behavior of finely ground natural quartz. Most of the experimental work involved the determination of zeta potentials and the stability of quartz suspensions. Some measurements of induction times and the flotation response of coarser particles are also included. How these surfactants affect interfacial behavior is discussed in terms of adsorption mechanisms. The molecular structure (number of hydrocarbon chains, type of ionic head group, number of ionic head groups on the molecule) of these reagents was found to significantly affect their surface activity.

Cationic surfactant adsorption Molecular structure Quartz suspension stability Quartz zeta potential Estimation of flotability

D. W. Fuerstenau R. H. Jia

Dept. of Materials Science and Engineering, University of California, Berkeley, USA

国际会议

XXIV International Mineral Processing Congress(第24届国际矿物加工大会)

北京

英文

81-89

2008-09-24(万方平台首次上网日期,不代表论文的发表时间)