STRUCTURAL CONTROL OF NA(2)TIO(3) IN PRE-TREATING NATURAL RUTILE ORE BY ALKALI ROASTING FOR TIO2 PRODUCTION

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	STRUCTURAL CONTROL OF NA(2)TIO(3) IN PRE-TREATING NATURAL RUTILE ORE BY ALKALI ROASTING FOR TIO2 PRODUCTION
	Meng, Fancheng1,2 ; Liu, Yahui 1; Chu, Jinlong 1; Wang, Weijing 1,2; Qi, Tao 1
刊名	CANADIAN JOURNAL OF CHEMICAL ENGINEERING
	2014-08-01
卷号	92 期号:8 页码:1346-1352
关键词	TiO2 production natural rutile alkali roasting structural control crystal form
ISSN号	0008-4034
通讯作者	Qi, T (reprint author), Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China.
英文摘要	To improve the use of natural rutile ore with fine particle size and high contents of MgO and CaO in China, a novel pre-treatment method of natural rutile ore by NaOH roasting to prepare -Na2TiO3 for TiO2 production was proposed. -Na2TiO3 is a stable by-product that can lead to serious caking in the reactor and low titanium yield. Thus, structural control in alkali roasting is necessary. The influence of particle size of natural rutile ore, NaOH-to-ore mass ratio, roasting temperature and roasting time on the crystal forms of Na2TiO3 was systematically investigated. The optimized reaction parameters were as follows: average particle size of natural rutile ore, -9.2 mu m; NaOH-to-rutile mass ratio, 1.2; roasting temperature, 550 degrees C; and roasting time, 70min. In these conditions, the titanium conversion and the fraction of -Na2TiO3 exceeded 99.5% and 98%, respectively. Moreover, the addition of H2O or as-prepared partial -Na2TiO3 as crystal seeds into the reaction system could prepare the roasting product with -Na2TiO3 as its main phase using -45 mu m (-325mesh) natural rutile ore.
学科主题	Engineering
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	HYDROTHERMAL SYNTHESIS ; SODIUM-HYDROXIDE ; BARIUM-TITANATE ; TITANIUM SLAG ; DECOMPOSITION ; NANOPARTICLES ; TEMPERATURE ; ACTIVATION ; PIGMENT ; NA2TIO3
收录类别	SCI
语种	英语
WOS记录号	WOS:000340281900003
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/15246]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Meng, Fancheng,Liu, Yahui,Chu, Jinlong,et al. STRUCTURAL CONTROL OF NA(2)TIO(3) IN PRE-TREATING NATURAL RUTILE ORE BY ALKALI ROASTING FOR TIO2 PRODUCTION[J]. CANADIAN JOURNAL OF CHEMICAL ENGINEERING,2014,92(8):1346-1352.
APA	Meng, Fancheng,Liu, Yahui,Chu, Jinlong,Wang, Weijing,&Qi, Tao.(2014).STRUCTURAL CONTROL OF NA(2)TIO(3) IN PRE-TREATING NATURAL RUTILE ORE BY ALKALI ROASTING FOR TIO2 PRODUCTION.CANADIAN JOURNAL OF CHEMICAL ENGINEERING,92(8),1346-1352.
MLA	Meng, Fancheng,et al."STRUCTURAL CONTROL OF NA(2)TIO(3) IN PRE-TREATING NATURAL RUTILE ORE BY ALKALI ROASTING FOR TIO2 PRODUCTION".CANADIAN JOURNAL OF CHEMICAL ENGINEERING 92.8(2014):1346-1352.