锑氧还原熔炼过程有价组元热力学行为研究  

Thermodynamic Behavior of Valuable Components in Antimony Oxide Reduction Smelting Process

作　　者：张忠堂[1,2] 刘兰进 蒋春生 聂华平 王瑞祥[1,2] 徐志峰 马保中[5] ZHANG Zhongtang;LIU Lanjin;JIANG Chunsheng;NIE Huaping;WANG Ruixiang;XU Zhifeng;MA Baozhong(Jiangxi Province Key Laboratory of Green and Low Carbon Metallurgy for Strategic Nonferrous Metals,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;Key Laboratory of Ionic Rare Earth Resources and Environment,Ministry of Natural Resources,Ganzhou 341000,Jiangxi,China;Jiangxi Ruida Xinnengyuan Technology Co.,Ltd.,Yichun 336000,Jiangxi,China;Jiangxi College of Applied Technology,Ganzhou 341000,Jiangxi,China;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]江西理工大学战略有色金属绿色低碳冶金江西省重点实验室,江西赣州341000 [2]离子型稀土资源与环境重点实验室,江西赣州341000 [3]江西睿达新能源科技有限公司,江西宜春336000 [4]江西应用技术职业学院,江西赣州341000 [5]北京科技大学冶金与生态工程学院,北京100083

出　　处：《有色金属（冶炼部分）》2024年第12期17-25,共9页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2022YFC2904201);赣鄱俊才支持计划·青年科技人才托举项目(2024QT06);江西省自然科学青年基金资助项目(20242BAB25250,23232BAB204036,20224BAB214040)。

摘　　要：以锑氧粉为研究对象,采用热力学软件FactSage计算还原过程各金属氧化物反应趋势、Me-C-O系优势区图及物相平衡分配。结果表明,在一定温度范围内,控制CO分压与O_(2)分压,可促进Sb_(2)O_(3)向金属Sb转化,PbO向金属Pb转化。随着温度的升高,金属Sb和Pb的稳定存在区域逐渐增大。验证试验表明,在还原温度800℃,还原煤率20%条件下,锑氧还原过程可顺利进行,产出合金品位大于98%,合金收率90%以上。Taking antimony oxide powder as the research objects,the thermodynamic software FactSage was used to calculate the reaction trends of various metal oxides,the dominant region diagram of Me-C-O system,and the phase equilibrium distribution rules in the reduction process.Thermodynamic analysis shows that in a certain temperature range,controlling the partial pressures of CO and O_(2) can promote the conversion of Sb_(2)O_(3) to metallic Sb and PbO to metallic Pb.The stable existence regions of metallic Sb and Pb expand gradually with the increase of temperature.The verification test shows that the antimony oxide reduction process can be carried out smoothly under the condition of reduction temperature of 800℃ and reduction coal rate of 20%,the alloy grade is greater than 98% and the alloy recovery rate can reach over 90%.

关 键 词：锑氧 火法冶金 还原熔炼 热力学 

分 类 号：TF818[冶金工程—有色金属冶金]