新型氨基酸类捕收剂在钼尾矿浮选中的应用  

Application of New Amino Acid Collectors in Flotation of Molybdenum Tailings

作　　者：李彩霞[1] 白阳[1] 赵鑫 王国良[1] 安红运 张乾伟[3] 鲍佳彤 Li Caixia;Bai Yang;Zhao Xin;Wang Guoliang;An Hongyun;Zhang Qianwei;Bao Jiatong(College of Mining,Liaoning Technical University,Fuxin,Liaoning 123000;College of Materials,Liaoning Technical University,Fuxin,Liaoning 123000;Bengbu Glass Industry Design and Research Institute,Bengbu,Anhui 233000;Surrey International College,Dongbei University of Finance and Economics,Dalian,Liaoning 116000)

机构地区：[1]辽宁工程技术大学矿业学院,辽宁阜新123000 [2]辽宁工程技术大学材料学院,辽宁阜新123000 [3]蚌埠玻璃工业设计研究院,安徽蚌埠233000 [4]东北财经大学萨里国际学院,辽宁大连116000

出　　处：《非金属矿》2019年第5期55-57,61,共4页Non-Metallic Mines

基　　金：国家自然科学基金(51404133)

摘　　要：通过矿物浮选试验、电动电位测试和吸附能计算,考察了自制氨基酸类捕收剂十二烷基甘氨酸钠对钼尾矿中非金属矿物可浮性的影响。结果表明:以十二烷基甘氨酸钠为捕收剂,硅酸钠为抑制剂,矿浆pH值为6的条件下,钠长石、金云母、透辉石、白云石和方解石的回收率与纯矿物浮选结果相接近,大于使用油酸钠作捕收剂的浮选效果。十二烷基甘氨酸钠可与钠长石(001)解理面、透辉石(110)解理面、白云石(101)解理面、方解石(101)和(104)解理面发生化学吸附,与金云母(001)解理面发生物理吸附,且相应的吸附趋势为:白云石(101)解理面>方解石(104)解理面>方解石(101)解理面>透辉石(110)解理面>钠长石(001)解理面>金云母(001)解理面。In this paper,the influence and adsorption of sodium dodecyl glycine,a self-made amino acid collector,on flotation of non-metallic minerals in molybdenum tailings were investigated with mineral flotation tests,zeta-potential determination and adsorption energy calculations.The results showed that the recoveries of albite,phlogopite,diopside,dolomite and calcite were similar to those of pure mineral flotation under the condition of sodium dodecyl glycine as collector,sodium silicate as inhibitor and slurry pH of 6,which were greater than those of using sodium oleate as collector.Sodium dodecyl glycine can be chemically adsorbed on albite(001),diopside(110),dolomite(101),calcite(101)and(104)surfaces,and physically adsorbed on phlogopite(001)surface.The corresponding adsorption trends is as follows:dolomite(101)surface>calcite(104)surface>calcite(101)surface>diopside(110)>albite(001)surface>phlogopite(001)surface.

关 键 词：十二烷基甘氨酸钠 钼尾矿 非金属矿 分子模拟 

分 类 号：TD923[矿业工程—选矿] X751[环境科学与工程—环境工程]