预处理对石棉尾矿酸浸反应效果的影响  

Effect of pre-treatment of asbestos tailings on acid leaching reaction of asbestos tailings

作　　者：杜高翔[1] 郑水林[2] 王艳玲 赵银荣[2] 

机构地区：[1]中国地质大学(北京)材料科学与工程学院,北京100083 [2]中国矿业大学(北京)化学与环境工程学院,北京100083 [3]北京天坛股份有限公司通达耐火技术分公司,北京100085

出　　处：《化工矿物与加工》2007年第3期15-17,共3页Industrial Minerals & Processing

摘　　要：提高石棉尾矿与酸的反应效果是提高利用石棉尾矿制备氢氧化镁和二氧化硅产率的重要途径。本文就石棉尾矿的预处理对石棉尾矿与酸反应效果的影响进行了研究。采用的预处理方法有:将石棉尾矿在700℃下煅烧、超细研磨、浮选提纯等,以预处理后的石棉尾矿与酸反应后的残渣质量作为评价指标。结果表明:预处理没有达到提高石棉尾矿酸浸效果的目的。文中对产生这一结果的原因进行了讨论。It＇s the main method to improve the yield of silica and magnesium hydroxide that toimprove the effect of acid leaching reaction of asbestos railings. The effect of pre-treatment of the asbestos railings on the acid leaching reaction of asbestos tailings was studied. The pre-treatment methods included ealeitntions at 700℃, ultra-fine grinding and flotatlon. The residue weight of the acid lcacblng reaction was taken as an evaluation index. The results showed that those pre-treatments eouldn＇ t improve the acid leaching reaction efficiency. The mechanism of getting the results was discussed.

关 键 词：石棉尾矿 预处理 蛇纹石 

分 类 号：TD926.4[矿业工程—选矿]