微波加热直接还原铬铁矿  

DIRECT REDUCTION OF CHROMITE WITH MICROWAVE HEATING

作　　者：陈建 熊伟 曾淑琴 王私富 CHEN Jian;XIONG Wei;ZENG Shu-qin;WANG Si-fu(School of Chemistry and Engineering, Wenshan University, Wenshan 663099, Yunnan, China;Yunnan Hualian Zinc and Indium Co., Ltd., Maguan 663701, Yunnan, China)

机构地区：[1]文山学院化学与工程学院,云南文山663000 [2]云南华联锌铟股份有限公司,云南马关663701

出　　处：《矿冶》2018年第6期58-60,共3页Mining And Metallurgy

摘　　要：对微波加热直接还原铬铁矿的工艺进行了探索。选取还原温度、还原时间、还原剂兰炭加入量为变量,采用单因素试验,寻找最佳工艺条件。结果表明,在还原温度1 450℃、还原时间120 min、还原剂加入量20%的条件下,可得到铬含量46. 38%的产品。采用微波加热的直接还原法生产碳素铬铁的工艺是可行性的。Microwave heating process for direct reduction of chromite was explored.Reduction temperature,reduction time,and dosage of reducing agent(semi coke)were selected to investigate effect on production of carbon ferrochrome by single factor test.The results show that reduction product with chromium content of 46.38%is obtained under the optimum conditions including reduction temperature of 1 450℃,reducing time of 120 min,and dosage of reducing agent of 20%.It is feasible to produce carbon ferrochrome product by direct reduction of chromite with microwave heating.

关 键 词：微波加热 直接还原 碳素铬铁 

分 类 号：TF111.13[冶金工程—冶金物理化学]