高硫铝土矿脱硫脱硅扩大连续选矿试验研究  

Research on High-sulfur Bauxite for Scale-up Continuous Test of Desulfurization and Desilication

作　　者：任少峰 何伟 刘金海 李天霞[3] REN Shaofeng HE Wei LIU Jinhai LI Tianxia(Southwest Energy and Mineral Resources Corporation Co. , Ltd. , Guiyang 550004, China Zunyi Energy and Mineral Investment Co. , Ltd. , Zunyi Guizhou 563000, China Hunan Research Institute of Nonferrous Metals, Changsha 410015, China)

机构地区：[1]西南能矿集团股份有限公司,贵阳550004 [2]遵义能矿投资股份有限公司,贵州遵义563000 [3]湖南有色金属研究院,长沙410015

出　　处：《有色金属（选矿部分）》2017年第2期33-37,66,共6页Nonferrous Metals（Mineral Processing Section）

基　　金：贵州省科技厅社会发展科技支撑计划项目(黔科合SY字[2015]3007)

摘　　要：针对贵州省某高硫铝土矿,在小型试验的基础上进行了扩大连续选矿试验,通过验证对比、优化,并在综合考虑资源利用率和经济性的基础上,最终确定了"一次性磨矿—反浮选预先脱硫—正浮选脱硅"的工艺流程,采用在低温下捕收力强的捕收剂,获得了含硫23.07%、Al_2O_332.41%、Si O27.51、硫回收率85.05%的硫精矿和含Al_2O_360.33%、SiO_29.04%、硫0.29%、Al_2O_3回收率84.24%、铝硅比为6.68的铝土矿精矿。该试验结果为该铝土矿的开发利用和在较低温度下的选矿富集提供了技术依据。Scale-up continuous test on high sulfur-containing bauxite from Guizhou province was conducted on the basis of lab experiment. By means of verifying, comparing, optimizing and considering resources utilization rate and economical efficiency, one-off ore grinding-advance desulfuration by reverse flotation-desilication by direct flotation flow path and one collectors which has strong collecting capacity at low temperature were finally adopted to process this ore. Sulfur concentrate with S grade of 23.07%, Al2O3grade of 32. 41%, SiOEgrade of 7.51 and S recovery of 85.05%, and bauxite concentrate with AlE03 grade of 60. 33%, SiO2 grade of 9. 04%, S grade of 0. 29%, Al2O3 recovery of 84.24%, and A/S of 6.68 were obtained. The results offer technological gist to development, utilization and mineral enrichment of this bauxite at low temperature.

关 键 词：高硫铝土矿 浮选试验 扩大连选 脱硫脱硅 

分 类 号：TD923[矿业工程—选矿] TD952