Catalytic effect of alkali chlorides on carbothermic reduction of pre-oxidized ilmenite

IMR OpenIR

	Catalytic effect of alkali chlorides on carbothermic reduction of pre-oxidized ilmenite
其他题名	Catalytic effect of alkali chlorides on carbothermic reduction of pre-oxidized ilmenite
	Wu JH 1; Sun K 1; Ma YY 1; Liu MY 1; Zhang YJ 1
	2000
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	10 期号:6 页码:813-816
摘要	A computer-monitoring thermogravimetric system was used to study the effect of alkali chlorides(MCl, M = Li, Na, K and Cs) on the carbothermic reduction of pre-oxidized ilmenite in the course of a linear rise in temperature from 600 degreesC to 1000 degreesC. The experimental results indicate that all the alkali chlorides can speed up the reduction process of preoxidized ilmenite, moreover, KCl is the most effective catalyst of the chlorides, while the catalytic effects of LiCl and CsCl are relatively weaker. It seems that the catalytic mechanism of LiCl is different from those of the other alkali chlorides. The cross-sectional morphology of the partially reduced pre-oxidized ilmenite particles and the distribution of potassium ions within them were examined by means of scanning electronic microscopy and electronic probe microanalysis, respectively, which shows that the reduction proceeds topochemically and the alkali ion enriches at the periphery of the particles.
关键词	thermogravimetry non-isothermally carbothermic reduction alkali additives pre-oxidized ilmenite
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:510710
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/150315
专题	中国科学院金属研究所
作者单位	1.东北大学 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Wu JH,Sun K,Ma YY,et al. Catalytic effect of alkali chlorides on carbothermic reduction of pre-oxidized ilmenite[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2000,10(6):813-816.
APA	Wu JH,Sun K,Ma YY,Liu MY,&Zhang YJ.(2000).Catalytic effect of alkali chlorides on carbothermic reduction of pre-oxidized ilmenite.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,10(6),813-816.
MLA	Wu JH,et al."Catalytic effect of alkali chlorides on carbothermic reduction of pre-oxidized ilmenite".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 10.6(2000):813-816.