无机固体物质对萃取过程中界面乳化物形成的影响  

Effect of Inorganic Solid Substances on Formation of Interfacial Emulsion during Extraction

作　　者：李晓晖[1] 周桂英[1] 黄松涛[1] 温建康[1] 

机构地区：[1]北京有色金属研究总院生物冶金国家工程实验室,北京100088

出　　处：《有色金属（冶炼部分）》2014年第6期1-4,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点基础研究发展计划(973计划)项目(2010CB630906);国家高技术研究发展计划(863计划)项目(2012AA061502)

摘　　要：研究了矿物颗粒、黄钾铁矾和二氧化硅三种固体对萃取过程中界面乳化物形成的影响。通过考察界面乳化物生成率和水相透光度的变化来评价形成乳化物的乳化程度。结果表明,体系中有矿物颗粒存在时,界面乳化物生成率很高,加入8g/L矿物颗粒,静置10min后,界面乳化物的生成率为40.3%。体系中有二氧化硅固体存在时,界面乳化物生成率也很高,水相乳化程度严重。而黄钾铁矾的分相时间短,乳化物生成率低,与其具有较强的亲水性有关。The effects of ore particles,jarosite and solid silica on formation of emulsion during extraction were investigated.Production rate and light transmittance of aqueous phase were applied to evaluate emulsion stability.The results show that product rate of emulsion is high with ore particles in the system,that is,the product rate of emulsion is 40.3 ％ in the system with 8 g/L ore particles after 10 min standing.Solid silica exerts a significant effect on product rate of emulsion formation and light transmittance of aqueous phase.In contrast,the product rate of emulsion of jarosite is low with short phase splitting time due to j arosite＇s stronger hydrophilcity.

关 键 词：乳化 矿物 黄钾铁矾 二氧化硅颗粒 润湿性 

分 类 号：TF804.2[冶金工程—有色金属冶金]