摘要
针对艾萨炉炼铜过程中经常遇到的铜精矿原料MgO含量偏高的现象,通过合成渣实验以及FactSage软件模拟探究FeO-SiO 2-CaO-MgO四元渣系中MgO含量对炉渣熔点的影响,结合生产渣型给出优化建议。结果表明,渣中MgO含量每增加0.5个百分点,炉渣熔点会升高9~10℃;MgO含量从1%增加到5%,渣的液相面积从10.75%减小到8.84%;MgO含量在2%~2.5%时,优化渣型为:Fe 36%~38%、SiO 228%~30%、Fe 3 O 48.6%、CaO 3.5%~4%。
Aiming at the phenomenon of high MgO content of copper concentrate raw materials often encountered in the copper smelting process of Isa furnace,the synthetic slag experiment and FactSage software simulation were used to investigate the MgO content of the FeO-SiO 2-CaO-MgO quaternary slag system to the melting point of the slag,and the optimization suggestions were given based on the production slag type.The results show that for every 0.5%increase of MgO content in the slag,the melting point of the slag will increase by 9-10℃;the MgO content increases from 1%to 5%,and the liquid phase area of the slag will decrease from 10.75%to 8.84%;when the MgO content is 2%-2.5%,the optimized slag types are:Fe 36%-38%,SiO228%-30%,Fe3O 48.6%,CaO3.5%-4%.
作者
王冲
孔德颂
李东波
沈强华
程东杰
陈雯
WANG Chong;KONG De-song;LI Dong-bo;SHEN Qiang-hua;CHENG Dong-jie;CHEN Wen(Yunnan Copper Industry Co.Ltd.,Kunming 650000,China;Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)
出处
《矿冶》
CAS
2020年第2期62-66,共5页
Mining And Metallurgy
关键词
艾萨炉渣
熔点
软件模拟
渣液相面积
Isa slag
melting point
software simulation
slag liquid area
