山西某高硫铝土矿脱碳脱硫试验研究  

Experimental study on decarbonization and desulfurization of the high-sulfur bauxite in Shanxi province

作　　者：刘中原 张建强 杜五星 Liu Zhongyuan;Zhang Jianqiang;Du Wuxing(Zhengzhou Non-ferrous Metals Research Institute Co.,Ltd.of CHALCO,Zhengzhou 450041,China;National Aluminum Smelting Engineering Technology Research Center,Zhengzhou 450041,China)

机构地区：[1]中铝郑州有色金属研究院有限公司,河南郑州450041 [2]国家铝冶炼工程技术研究中心,河南郑州450041

出　　处：《轻金属》2022年第6期1-5,共5页Light Metals

摘　　要：针对山西某地区高硫铝土矿中碳和硫含量高的问题,研究开发了高硫铝土矿脱碳脱硫技术。针对C含量为0.87%、S含量为1.58%、Al_(2)O_(3)含量为65.91%,A/S为11.79的高硫高铝硅比铝土矿,采用“预先浮选脱碳”+“一次粗选一次精选两次扫选浮选脱硫”工艺流程,可得到产率为86.77%、C含量为0.46%、S含量为0.25%、Al_(2)O_(3)含量为68.63%、A/S为12.73的铝精矿,和产率为6.64%硫尾矿及产率为6.59%的脱碳泡沫产品。通过脱碳脱硫方法实现了该地区高硫高铝硅比铝土矿的有效利用。In view of the high content of carbon and sulfur in high-sulfur bauxite in an area of Shanxi province,the decarbonization and desulfurization technology of high-sulfur bauxite was studied and developed.With respect to the bauxite with high sulfur and high alumina silica ratio(the content of C is 0.87%,the content of S is 1.58%,the content of Al_(2)O_(3) is 65.91%,and the A/S is 11.79),the process flow of“preflotation decarbonization”+“one roughing,one beneficiation and two scavenging flotation desulfurization”can be used to obtain the aluminum concentrate(the yield is 86.77%,the content of C is 0.46%,the content of S is 0.25%,the content of Al_(2)O_(3) is 68.63%,and the A/S is 12.73),sulfur tailings with the yield of 6.64%and decarburization foam products with the yield of 6.59%.The effective utilization of bauxite with high sulfur and high alumina silica ratio in this area is realized by decarbonization and desulfurization.

关 键 词：高硫铝土矿 浮选脱碳 浮选脱硫 

分 类 号：TF31[冶金工程—冶金机械及自动化]