Catalytic Mechanism of KCl during Carbothermic Reduction of Pre-Oxidized Ilmenite

作     者：SUN Kang WU Jian-hui 

作者机构：Northeastern University 

出 版 物：《Journal of Iron and Steel Research International》 (JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL)

年 卷 期：2001年第8卷第2期

页      面：7-11页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080601[工学-冶金物理化学] 0703[理学-化学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Item Sponsored by National Natural Science Foundation(59774026) 

主　　题：carbothermic reduction catalytic effect reaction mechanism alkali additives preoxidized ilmenite 

摘      要：As alkali additive,KC1 catalyzes effectively the carbothermic reduction of pre-oxidized ilmenite,and the catalytic effect becomes more remarkable as the amount of KC1 *** the carbothermic reduction,the gaseous product consists mainly of CO,and the partial pressure of which increases with reaction *** EPMA and XPS of the partially reduced ilmenite ore and that of the used graphite as reductant showed that the potassium ions enter both ilmenite particles and graphite powders during *** above-mentioned phenomena result in the distortion of ilmenite and carbon structure by potassium ions and reaction activity of carbon and ilmenite was *** a result,the overall carbothermic reduction was catalyzed by KC1.