锡精炼过程加硫除铜试验  

Test on Copper Removal by Adding Sulfur in Tin Refining Process

作　　者：刘庆东 张环[2] 谢铿 李一夫[2] 李正永 陈云 袁海滨 LIU Qingdong;ZHANG Huan;XIE Keng;LI Yifu;LI Zhengyong;CHEN Yun;YUAN Haibin(Yunnan Tin Company Limited,Gejiu 661000,Yunnan,China;Kunming University of Science and Technology,Kunming 650093,China;BGRIMM Technology Group,Beijing 100160,China)

机构地区：[1]云南锡业股份有限公司,云南个旧661000 [2]昆明理工大学,昆明650093 [3]矿冶科技集团有限公司,北京100160

出　　处：《有色金属（冶炼部分）》2024年第6期8-13,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：云南省科技厅重大科技专项计划(202302AB080004);云南省科技厅科技人才与平台计划(202205AD160028)。

摘　　要：针对锡精炼过程加硫除铜工艺,系统考察加硫量、加热温度和不同形态硫磺对锡铜分离的影响。研究结果表明,片状硫磺加硫量1∶1.2、加热温度300℃时,锡铜分离效果达到最佳,残余锡中的铜含量降低到了0.007%,锡铜分离率和锡直收率分别达到了99.18%、99.52%。该工艺可以有效除去粗锡中的杂质铜,具有操作简单、成本低及效率高的优点。The effects of sulfur dosage,heating temperature and different forms of sulfur on the separation of tin and copper for the process of copper removal by adding sulfur in tin refining were systematically investigated.The results show that when the amount of flake sulfur is 1∶1.2 and heating temperature is 300℃,the separation effect of tin and copper is the best,the copper content in residual tin is reduced to 0.007%,and the separation rate of tin and copper and the direct yield of tin are 99.18%and 99.52%,respectively.The process can effectively remove the impurity copper in the crude tin,and has the advantages of simple operation,low cost and high efficiency.

关 键 词：粗锡精炼 加硫除铜 锡铜分离率 锡直收率 

分 类 号：TF814[冶金工程—有色金属冶金]