攀枝花硫酸渣直接还原试验研究  

Experimental Study on Direct Reduction of Panzhihua′s Pyrite Residue

作　　者：李俊翰[1,2] 孙宁 LI Jun-han;SUN Ning(Panzhihua University,Panzhihua 617000,Sichuan,China;Sichuan Provincial Key Laboratory of Comprehensive Utilization for Vanadium&Titanium Resources,Panzhihua 617000,Sichuan,China)

机构地区：[1]攀枝花学院,四川攀枝花617000 [2]钒钛资源综合利用四川省重点实验室,四川攀枝花617000

出　　处：《矿冶工程》2021年第6期150-152,160,共4页Mining and Metallurgical Engineering

基　　金：钒钛资源综合利用四川省重点实验室项目(2019FTSZ16);绿色催化四川省高校重点实验室项目(LYJ1909);大学生创新训练计划项目(S202011360004);攀枝花学院博士基金(BSJJ20150031)。

摘　　要：采用正交试验和单因素试验研究了配碳量、还原温度、还原时间对攀枝花硫酸渣直接还原的影响。结果表明,影响硫酸渣还原过程的主次因素依次为:配碳量>还原温度>还原时间;硫酸渣直接还原适宜的工艺参数为:配碳量1.3、还原温度1300℃、还原时间35 min,此条件下硫酸渣直接还原金属化率为97.16%。The effects of molar ratio of C and O,reduction temperature and reduction time on the direct reduction of Panzhihua′s pyrite residue were studied by conducting orthogonal experiments and single factor experiments.The results show that the main factors affecting the direct reduction of pyrite residue are in the following descending order:molar ratio of C and O>reduction temperature>reduction time.It is concluded that under the following optimal technique parameters including the molar ratio of C and O of 1.3,reduction at the temperature of 1300℃for 35 min,the metallization rate of the reduced pyrite residue can be up to 97.16%.

关 键 词：硫酸渣 还原铁 直接还原 金属化率 物相组成 

分 类 号：TF111[冶金工程—冶金物理化学]