镍闪速熔炼新渣型的物化性质研究  

Study on Physico-Chemical Property of New Slag Type for Nickel Flash Smelting

作　　者：张振强[1] 赵俊学[1] 崔雅茹[1] 高晓婷 路晓涛[1] 王鹏飞[1] 梁洪铭[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055 [2]金川有色集团有限公司镍钴研究院,甘肃金昌737100

出　　处：《有色金属（冶炼部分）》2013年第5期5-9,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：陕西省教育厅专项项目(11JK0814);西安建筑科技大学基础研究项目(JC1108)

摘　　要：金川镍铜渣中铁的还原性差、难以作为炼铁炉料直接入炉冶炼。提出了提高渣中CaO含量、降低SiO2含量为后续提铁创造条件的工艺设想,并利用FactSage计算模拟软件对金川镍闪速熔炼渣主要成分的相图进行模拟计算,通过试验考察了不同炉渣组分对熔渣物化性质影响的规律。结果表明,合适的新渣型为Fe/SiO2=1.5,CaO 10%～15%,MgO 9%。Iron in nickel and copper slag mostly exists in the form of ferric metasilicate, which is difficult to be reduced and can＇t be used as furnace charge directly. Improving content of CaO and reducing content of SiO2 in slag were put forward to create conditions for subsequent iron extraction. Main ingredients phase diagram of JNMC nickel and copper slag was simulation calculated with FactSage software, and the effects of components of slag on physico-chemical properties of smelting slag was investigated by experiments. The results show that the suitable slag type is Fe/SiO2 of 1.5, CaO of 10%-15%, MgO of 9%.

关 键 词：镍冶金 闪速炉渣 新渣型 熔化温度 黏度 

分 类 号：TF815[冶金工程—有色金属冶金]