Controlling the formation of Na2ZrSiO5 in alkali fusion process for zirconium oxychloride production

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	Controlling the formation of Na2ZrSiO5 in alkali fusion process for zirconium oxychloride production
	Liu, Jingchong 1,2,3; Song, Jing 1,2; Qi, Tao 1,2; Zhang, Changqiao 3; Qu, Jingkui 1,2
刊名	ADVANCED POWDER TECHNOLOGY
	2016
卷号	27 期号:1 页码:1-8
关键词	ZrOCl2 center dot 8H(2)O production Zircon sand Na2ZrSiO5 Alkali roasting
ISSN号	0921-8831
通讯作者	Qu, JK (reprint author), Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China.
英文摘要	In the alkali fusion process for the production of zirconium oxychloride, the formation of the water insoluble by-product, Na2ZrSiO5, largely affects NaOH recovery and results in the formation of silicon slags. Thus, controlling Na2ZrSiO5 formation is necessary. In this paper, we studied the effects of roasting temperature, NaOH/zircon mole ratio, and particle size of zircon sand on Na2ZrSiO5 formation. The optimum reaction parameters, when the roasting time was 1 h, were as follows: >= 95 mu m average particle size of zircon sand, 6:1 NaOH/zircon mole ratio, and 750 degrees C roasting temperature. To avoid an uneven roasting temperature during alkali fusion, the use of a rotary kiln reactor is recommended. The amount of Na2ZrSiO5 was significantly decreased under these optimum conditions, and the content of Na2O was reduced from 7.049% to only 2.21% after three water-leaching cycles. (C) 2015 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	PART I ; DECOMPOSITION ; CONCENTRATE ; SAND ; NAOH
收录类别	SCI
语种	英语
WOS记录号	WOS:000370677400001
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/20624]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Shandong Univ, Sch Chem & Chem Engn, Shandong 250100, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jingchong,Song, Jing,Qi, Tao,et al. Controlling the formation of Na2ZrSiO5 in alkali fusion process for zirconium oxychloride production[J]. ADVANCED POWDER TECHNOLOGY,2016,27(1):1-8.
APA	Liu, Jingchong,Song, Jing,Qi, Tao,Zhang, Changqiao,&Qu, Jingkui.(2016).Controlling the formation of Na2ZrSiO5 in alkali fusion process for zirconium oxychloride production.ADVANCED POWDER TECHNOLOGY,27(1),1-8.
MLA	Liu, Jingchong,et al."Controlling the formation of Na2ZrSiO5 in alkali fusion process for zirconium oxychloride production".ADVANCED POWDER TECHNOLOGY 27.1(2016):1-8.