一水硬铝石与高岭石反浮选分离研究  

A STUDY ON SEPARATION DIASPORE AND KAOLINITE BY REVERSE FLOATATION

作　　者：郭键[1] 任爱军 方启学 胡永平 

机构地区：[1]中国矿业大学(北京)机电学院

出　　处：《有色金属（选矿部分）》2003年第3期1-5,共5页Nonferrous Metals（Mineral Processing Section）

摘　　要：详细研究了一水硬铝石和高岭石的浮选行为 ,并以十二胺盐酸盐作为捕收剂 ,在酸性介质 ( pH3 .5 )及中性介质 ( pH7.5 )加调整剂ATNO进行反浮选分离研究 ,得到较好的分离效果 ,精矿A/S >11。同时进行了不同粒级和不同A/S的一水硬铝石和高岭石的反浮选分离 ,结果表明 ,不同的A/S条件下 ,可以得到较好的分离效果 ,但粒级对一水硬铝石和高岭石的分离有较大的影响 ,细粒级一水硬铝石与高岭石分离效果不好 。In this paper,the floatation behaviors of diaspore and kaolinite were investigated.The flotation of different A/S(3～5)of feed indicated that the concentrate of A/S>11 can be obtained when dodecyl amine is employed as collector and pH value is 3.5 or 7.5(ATNO is employed as depressor).The paper also studied the influence of particle size and A/S of feed on separation behaviors.It is stated that the particle size will greatly influence the concentrate grade in reverse flotation no matter when the pH value is 3.5 or 7.5,espacially when the particle of diaspore is fine.

关 键 词：反浮选 十二胺 ATNO 铝土矿 一水硬铝石 高岭石 

分 类 号：TD952.5[矿业工程—选矿] TD923