真空碳热还原高炉粉尘制备高纯锌热力学模拟研究  

Thermodynamic simulation of preparation of high-purity zinc by vacuum carbothermic reduction of zinc-containing dust

作　　者：王燕玲 夏建波 吉家睿 施炼 胡荣慧 黄润[1] WANG Yanling;XIA Jianbo;JI Jiarui;SHI Lian;HURonghui;HUANG Run(School of Materials and Metallurgy,Guizhou University,Guiyang 550025,Guizhou,China;Yunnan Juxingzhuan Office Co.,Ltd.,Kunming 650106,Yunnan,China)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550000 [2]云南巨星注安事务所有限公司,云南昆明650106

出　　处：《四川冶金》2021年第5期9-12,共4页Sichuan Metallurgy

基　　金：贵州大学SRT计划资助(贵大[国]创字2019(013)号)。

摘　　要：本文采用FactSage7.2软件模拟研究真空碳热还原含锌粉尘在不同温度、配碳量条件下的热力学行为,分析了不同条件下锌的挥发率。结果表明:在相同压强下,当配碳量为14%时,锌的挥发率随温度的升高而增加,渣相中的单质铁随温度增加而降低;在温度为700℃实验条件下,增加配碳量有利于渣相中的金属还原,锌的挥发率随着配碳量的增加而增加。继续升高温度和增加配碳量带来的成本上升,最佳条件为:温度为700℃,配碳量为14%。The thermodynamic behavior of blast furnace dust treated by vacuum carbothermal reduction under different temperature,carbon dosage and were studied usingFactSage7.2 software,and the volatilization ratio of zinc under different conditions was analyzed.The thermodynamic calculations showed that the volatilization ratio of zinc increased with the temperature under 1Pawhen the carbon content was 14%;when the temperature was 700℃,the increasing of carbon content was beneficial to the reduction of metal in slag phase,and the volatilization ratio of zinc increasing with the increasing of carbon content.Considering the cost increase caused by increasing the temperature and increasing the carbon dosage,the optimum conditions were as follows:the temperature was 700℃,the carbon dosagewas 14%.

关 键 词：含锌粉尘 真空碳热还原 热力学 FactSage7.2 

分 类 号：TF813[冶金工程—有色金属冶金]