有色金属科学与工程2015，Vol.6Issue(5)：12-16,5.DOI:10.13264/j.cnki.ysjskx.2015.05.003
氢气在不同还原条件还原磁铁矿的试验研究
Direct reduction of magnetite under differentreducing conditions by hydrogen
摘要
Abstract
The experiment was designed to study the impact of temperature and reduction time on the direct reduction rate,metallization rate and compressive strength of magnetite ,the trend of the furnace temperature during the process of the reduction reaction. The reduction temperature was set at 750 ℃,800℃,850℃,900℃and 950 ℃ in the order, and the hydrogen flow was set at 10 L/min in the experiment. The results show that after the magnetite is reduced for 50 min above 800 ℃, the metallization rate reaches above 93 %; the metallization rate of pellet reaches 80 % at first 30 min at the same temperature;a linear relation between temperature and compressive strength is found ,which presents the higher temperature ,the lower compressive strength.关键词
温度/还原速率/金属化率/抗压强度Key words
temperatures/metallization ratio/reduction rate/compressive strength分类
矿业与冶金引用本文复制引用
姚玺,郭汉杰,李永麒,孙贯永,李林..氢气在不同还原条件还原磁铁矿的试验研究[J].有色金属科学与工程,2015,6(5):12-16,5.基金项目
国家自然科学基金资助项目(51274031) （51274031）
