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Controlling the formation of Na2ZrSiO5 in alkali fusion process for zirconium oxychloride production
Liu, Jingchong1,2,3; Song, Jing1,2; Qi, Tao1,2; Zhang, Changqiao3; Qu, Jingkui1,2
2016
发表期刊ADVANCED POWDER TECHNOLOGY
ISSN0921-8831
卷号27期号:1页码:1-8
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.

关键词Zrocl2 Center Dot 8h(2)o Production Zircon Sand Na2zrsio5 Alkali Roasting
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.apt.2015.08.005
收录类别SCI
语种英语
关键词[WOS]Part i ; Decomposition ; Concentrate ; Sand ; Naoh
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Science Foundation for Distinguished Young Scholars of China(51125018) ; Jiangxi Jing'an Hi-technology Co., Ltd.
WOS记录号WOS:000370677400001
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20624
专题研究所(批量导入)
通讯作者Qu, Jingkui
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
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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.
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