锌氧压浸出高硫渣定向浮选回收硫磺工艺研究  

Study on the Process of Recovering Sulfur by Directional Flotation of Zinc Oxygen Pressure Leaching High Sulfur Residue

作　　者：刘贵清 王芳 解雪 张邦胜 LIU Guiqing;WANG Fang;XIE Xue;ZHANG Bangsheng(School of Metallurgy,Northeastern University,Shenyang 110819,China;Jiangsu BGRIMM Metal Recycling Technology Co.,Ltd.,Xuzhou 221121,China)

机构地区：[1]东北大学冶金学院,沈阳110819 [2]江苏北矿金属循环利用科技有限公司,江苏徐州221121

出　　处：《中国资源综合利用》2022年第1期35-43,共9页China Resources Comprehensive Utilization

基　　金：国家重点研发计划资助“锌冶炼高硫渣有价组份协同提取与无害化处置技术工程示范”(2018YFC1902006)。

摘　　要：本文的研究对象为西部某锌冶炼企业的氧压浸出渣,其硫品位为46.21%。在工艺矿物学研究的基础上,开展高硫渣浮选行为研究。通过对比试验确定以Z-200作为捕收剂,硫化钠+硫酸锌+亚硫酸钠作为组合抑制剂,石灰作为pH调整剂,MIBC作为起泡剂。在条件试验的基础上,确定最佳工艺流程为一次空白粗选、两次加药粗选、两次精选。经浮选闭路试验,获得硫品位91.25%、硫回收率90.56%的硫精矿,其中,精矿中硫磺品位为83.46%,硫磺回收率为99.99%。The research object of this paper is the oxygen pressure leaching residue of a zinc smelting enterprise in the west,and its sulfur grade is 46.21%.Based on the research of process mineralogy,research on the flotation behavior of high-sulfur slag is carried out.Through comparative experiments,it is determined that Z-200 is used as a collector,sodium sulfide+zinc sulfate+sodium sulfite is used as a combined inhibitor,lime is used as a pH adjuster,and MIBC is used as a foaming agent.On the basis of the condition test,the best technological process is determined as one blank rough selection,two rough additions with medicine,and two selections.After the flotation closed circuit test,a sulfur concentrate with a sulfur grade of 91.25%and a sulfur recovery rate of 90.56%is obtained,among them,the sulfur grade in the concentrate is 83.46%,and the sulfur recovery rate is 99.99%.

关 键 词：工艺矿物学 条件试验 工艺流程 硫磺品位 硫磺回收率 

分 类 号：TF813[冶金工程—有色金属冶金]