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Decomposition of ilmenite by concentrated KOH solution under atmospheric pressure
Liu, Yumin; Qi, Tao; Chu, Jinglong; Tong, Qijie; Zhang, Yi
2006-11-01
Source PublicationINTERNATIONAL JOURNAL OF MINERAL PROCESSING
ISSN0301-7516
Volume81Issue:2Pages:79-84
AbstractA new process was provided for decomposition of ilmenite by concentrated KOH solution under atmospheric pressure. The significant effects of reaction temperature, KOH concentration, stirring speed, particle size, and alkali-to-ilmenite mass ratios on titanium extraction were studied. The temperature and initial particle size showed significant influence on titanium extraction. The experimental data of the extraction rates under the relevant operating variables were well interpreted with the shrinking core model under chemically controlled process. The apparent activation energy of the reaction was evaluated using the Arrhenius expression. Approximately 80-85% of the titanium could be leached from the ilmenite ore under the optimal conditions. (c) 2006 Elsevier B.V. All rights reserved.
KeywordIlmenite Concentrated Koh Kinetics Atmospheric Pressure
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.minpro.2006.07.003
Indexed BySCI
Language英语
WOS KeywordHYDROCHLORIC-ACID ; SULFURIC-ACID ; KINETICS ; DISSOLUTION ; ORE
WOS Research AreaEngineering ; Mineralogy ; Mining & Mineral Processing
WOS SubjectEngineering, Chemical ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000242258100003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19207
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Res, Lab Green Proc & Engn, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu, Yumin,Qi, Tao,Chu, Jinglong,et al. Decomposition of ilmenite by concentrated KOH solution under atmospheric pressure[J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING,2006,81(2):79-84.
APA Liu, Yumin,Qi, Tao,Chu, Jinglong,Tong, Qijie,&Zhang, Yi.(2006).Decomposition of ilmenite by concentrated KOH solution under atmospheric pressure.INTERNATIONAL JOURNAL OF MINERAL PROCESSING,81(2),79-84.
MLA Liu, Yumin,et al."Decomposition of ilmenite by concentrated KOH solution under atmospheric pressure".INTERNATIONAL JOURNAL OF MINERAL PROCESSING 81.2(2006):79-84.
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