Determination and Modeling of the Solubility of Na2SiO3 center dot 9H(2)O in the NaCl-KCl-H2O System

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	Determination and Modeling of the Solubility of Na2SiO3 center dot 9H(2)O in the NaCl-KCl-H2O System
	Zeng, Yan 1; Li, Zhibao 1; Demopoulos, George P.2
刊名	JOURNAL OF CHEMICAL AND ENGINEERING DATA
	2014-04-01
卷号	59 期号:4 页码:1264-1272
关键词	SURFACE MODIFICATION SODIUM METASILICATE SILICA PRESSURES
ISSN号	0021-9568
其他题名	J. Chem. Eng. Data
中文摘要	The solubilities of sodium metasilicate nonahydrate (Na2SiO3 center dot 9H(2)O) in the NaCl-H2O, KCl-H2O, and NaCl-KCl-H2O systems were determined at the temperature range from (288.15 to 308.15) K using a dynamic method. The results show that the solubility of Na2SiO3 center dot 9H(2)O decreases first and then levels off with increasing concentration of NaCl from (0.17 to 4.50) mol.kg(-1), whereas the solubility in the Na2SiO3 center dot 9H(2)O(s)-saturated KCl solution increases slightly with the addition of KCl in the concentration range from (0.20 to 3.10) mol.kg(-1). The Na2SiO3 center dot 9H(2)O solubilities in all cases investigated were found to increase with the temperature increment. A new chemical model for the solubility has been established by the regression of the experimental solubilities data in the NaCl-H2O system to obtain the parameters of the Bromley-Zemaitis model. These newly obtained model parameters were applied to well predict the Na2SiO3 center dot 9H(2)O solubility in two other systems, namely, the KCl-H2O and the NaCl-KCl-H2O systems, without parametrization with an average relative deviation of 1.4 % and 4.1 %, respectively.
英文摘要	The solubilities of sodium metasilicate nonahydrate (Na2SiO3 center dot 9H(2)O) in the NaCl-H2O, KCl-H2O, and NaCl-KCl-H2O systems were determined at the temperature range from (288.15 to 308.15) K using a dynamic method. The results show that the solubility of Na2SiO3 center dot 9H(2)O decreases first and then levels off with increasing concentration of NaCl from (0.17 to 4.50) mol.kg(-1), whereas the solubility in the Na2SiO3 center dot 9H(2)O(s)-saturated KCl solution increases slightly with the addition of KCl in the concentration range from (0.20 to 3.10) mol.kg(-1). The Na2SiO3 center dot 9H(2)O solubilities in all cases investigated were found to increase with the temperature increment. A new chemical model for the solubility has been established by the regression of the experimental solubilities data in the NaCl-H2O system to obtain the parameters of the Bromley-Zemaitis model. These newly obtained model parameters were applied to well predict the Na2SiO3 center dot 9H(2)O solubility in two other systems, namely, the KCl-H2O and the NaCl-KCl-H2O systems, without parametrization with an average relative deviation of 1.4 % and 4.1 %, respectively.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Multidisciplinary ; Engineering, Chemical
研究领域[WOS]	Chemistry ; Engineering
关键词[WOS]	SURFACE MODIFICATION ; SODIUM METASILICATE ; SILICA ; PRESSURES
收录类别	SCI
原文出处	://WOS:000334571800038
语种	英语
WOS记录号	WOS:000334571800038
公开日期	2014-08-28
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/11022]
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, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.McGill Univ, Dept Min & Mat Engn, Montreal, PQ H3A 2B2, Canada
推荐引用方式 GB/T 7714	Zeng, Yan,Li, Zhibao,Demopoulos, George P.. Determination and Modeling of the Solubility of Na2SiO3 center dot 9H(2)O in the NaCl-KCl-H2O System[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2014,59(4):1264-1272.
APA	Zeng, Yan,Li, Zhibao,&Demopoulos, George P..(2014).Determination and Modeling of the Solubility of Na2SiO3 center dot 9H(2)O in the NaCl-KCl-H2O System.JOURNAL OF CHEMICAL AND ENGINEERING DATA,59(4),1264-1272.
MLA	Zeng, Yan,et al."Determination and Modeling of the Solubility of Na2SiO3 center dot 9H(2)O in the NaCl-KCl-H2O System".JOURNAL OF CHEMICAL AND ENGINEERING DATA 59.4(2014):1264-1272.