不同助磨剂对铝土矿磨矿中-16μm粒级含量的影响  

Influence of Grinding Aids on the Grinding Efficiency of Bauxite

作　　者：孙伟[1] 罗春华[1] 胡岳华[1] 代军[2] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083 [2]九江学院化学化工学院,江西九江332005

出　　处：《矿冶工程》2007年第5期22-26,共5页Mining and Metallurgical Engineering

基　　金：国家重大基础研究973项目(2005CB623701);国家863科技计划(2006AA06Z120)

摘　　要：通过沉降试验研究了相同磨矿条件下添加无水碳酸钠、六偏磷酸钠、RC、水合肼和三乙醇胺5种药剂对铝土矿磨矿-16μm粒级含量的影响。试验表明:无水碳酸钠、六偏磷酸钠和RC的添加增大了铝土矿微细颗粒的含量,水合肼与三乙醇胺其对微细颗粒含量影响不大。说明无水碳酸钠、六偏磷酸钠和RC对铝土矿磨矿有较好的助磨作用,而水合肼与三乙醇胺的助磨效果不明显。Under the same grinding condition, grinding aids such as sodium carbonate, calgon, RC, hydrazine hydrate and triethanolamine were introduced for bauxite grinding, and their effect on the grinding efficiency, namely, the yield of -16 μm size fraction in the grinding product, was investigated by sedimentation experiment. The results show that the proportion of - 16 μm size fraction can be apparently increased in the presence of sodium carbonate, calgon and RC, while hydrazine hydrate and triethanolamiue have no remarkable effect.

关 键 词：磨矿 铝土矿 助磨剂 沉降 微细颗粒 

分 类 号：TD912[矿业工程—选矿]