Effect of 2-aminothiophenol on the separation of jamesonite and marmatite  

作　　者：HUANG Hongjun SUN Wei 

机构地区：[1]School of Mineral Processing and Bioengineering,Central South University,Changsha 410083,China

出　　处：《Mining Science and Technology》2010年第3期425-427,共3页矿业科学技术(英文版)

基　　金：support from the Key Projects in the National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period(No.2006BAB02A06).

摘　　要：The minerals jamesonite and marmatite have similar surface properties.Separating them using a flotation method is inefficient.For separation of lead and zinc the lead mineral is generally floated preferentially to the zinc mineral,which appears in the sinks.In this study a new of collector,2-aminothiophenol,is introduced that can float a zinc mineral,as a product entrapped in foam,preferentially.Single mineral flotation tests revealed that 2-aminothiophenol has good selectivity for flotation of marmatite. An artificial mixture of minerals used in a flotation test showed that 2-aminothiophenol can effectively separate marmatite from jamesonite.A product assaying at 45.06%Zn and 4.06%Pb was produced.FTIR spectra were employed to probe the adsorption mechanism of 2-aminothiophenol onto marmatite.The results indicate that adsorption of 2-aminothiophenol onto jamesonite and marmatite were,respectively,physical adsorption and chemical adsorption.This agrees with the flotation results.The minerals jamesonite and marmatite have similar surface properties.Separating them using a flotation method is inefficient.For separation of lead and zinc the lead mineral is generally floated preferentially to the zinc mineral,which appears in the sinks.In this study a new of collector,2-aminothiophenol,is introduced that can float a zinc mineral,as a product entrapped in foam,preferentially.Single mineral flotation tests revealed that 2-aminothiophenol has good selectivity for flotation of marmatite. An artificial mixture of minerals used in a flotation test showed that 2-aminothiophenol can effectively separate marmatite from jamesonite.A product assaying at 45.06%Zn and 4.06%Pb was produced.FTIR spectra were employed to probe the adsorption mechanism of 2-aminothiophenol onto marmatite.The results indicate that adsorption of 2-aminothiophenol onto jamesonite and marmatite were,respectively,physical adsorption and chemical adsorption.This agrees with the flotation results.

关 键 词：2-aminothiophenol JAMESONITE MARMATITE floatation ADSORPTION 

分 类 号：TD923[矿业工程—选矿] TD952.3