矿产综合利用2025，Vol.46Issue(2)：171-177,7.DOI:10.3969/j.issn.1000-6532.2025.02.024
基于响应曲面法的钛精矿共用煤-铁粉的预还原
Pre-reduction of Titanium Concentrate with Pulverized Coal and Iron Power Based on Response Surface Methodology Method
摘要
Abstract
This is an article in the field of metallurgical engineering.The single factor and response surface experiments of heating reduction of titanium concentrate powder adding pulverized coal and iron powder were carried out,respectively so as to study the effects of temperature,heating time and iron powder addition on iron oxide reduction in titanium concentrate.The three regression model of iron metallization rate was constructed,and the influence law of various influencing factors on iron metallization rate was explored.The single factor test shows that the iron metallization rate can be significantly improved above 2.5%in the range of 1.5%～4.0%of the addition amount of iron powder.The response surface method experiment shows that temperature is the most important factor,followed by time and then amount of iron powder,and the interaction between temperature and time is greater than that between heating time and the amount of iron powder added in the degree of influence on the reduction of iron.The iron metallization rate can reach 86.79%,and metallic iron obviously appears in the reduced product at the optimized conditions of 1 450℃,33.5 min and 4%of iron power addition.关键词
冶金工程/钛精矿/铁氧化物/还原/响应曲面法/铁金属化率Key words
Metallurgical engineering/Titanium concentrate/Iron oxide/reduction/Response surface methodology/Iron metallization rate分类
矿业与冶金引用本文复制引用
曾富洪,周兰花..基于响应曲面法的钛精矿共用煤-铁粉的预还原[J].矿产综合利用,2025,46(2):171-177,7.基金项目
钒钛资源综合利用实验室省重点资助项目(035300235) （035300235）
