Solubility and Modeling for NaHCO3 and NH4HCO3 Crystals in the System Na+-NH4+-SO42--Cl--H2O from 283.15 to 323.15 K

doi:10.1021/acs.jced.9b00901

	Solubility and Modeling for NaHCO3 and NH4HCO3 Crystals in the System Na+-NH4+-SO42--Cl--H2O from 283.15 to 323.15 K
	Zhang, Xiaojuan 1,2; Li, Zhibao 1
刊名	JOURNAL OF CHEMICAL AND ENGINEERING DATA
	2020-02-01
卷号	65 期号:2 页码:664-677
ISSN号	0021-9568
DOI	10.1021/acs.jced.9b00901
英文摘要	Sulfate salts, generally contained in the feed materials for soda ash production, may have an important influence on the NaHCO3 precipitation in the carbonation tower of the Solvay process and the Trona process. The solubilities of NaHCO3 and NH4HCO3 solids were determined in Na2SO4, (NH4)(2)SO4, and NaCl solutions as well as their mixtures via a dynamic method from 283.15 to 323.15 K. It was found that NaHCO3 become less soluble with the addition of Na2SO4, whereas more NH4HCO3 is dissolved. The solubility of NaHCO3 increases with the increasing concentration of (NH4)(2)SO4, while that of NH4FICO3 decreases. The mixed -solvent electrolyte (MSE) model was modified by experimental data regression through the adjustment of the middle -range interaction parameters. The average relative deviation between the calculated results and experimental data is less than 5%. This work provides a basis for improving both the efficiency of the carbonation tower and the quality of end products.
资助项目	National Science Foundation of China[21776279] ; National Science Foundation of China[21978290]
WOS关键词	PARTIAL MOLAL PROPERTIES ; HIGH-PRESSURES ; ELECTROLYTES ; TEMPERATURES ; NA2SIO3-CENTER-DOT-9H(2)O ; EQUILIBRIUM ; PREDICTION ; MIXTURES ; STANDARD
WOS研究方向	Thermodynamics ; Chemistry ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000514221900036
资助机构	National Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/39827]
专题	中国科学院过程工程研究所
通讯作者	Li, Zhibao
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaojuan,Li, Zhibao. Solubility and Modeling for NaHCO3 and NH4HCO3 Crystals in the System Na+-NH4+-SO42--Cl--H2O from 283.15 to 323.15 K[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2020,65(2):664-677.
APA	Zhang, Xiaojuan,&Li, Zhibao.(2020).Solubility and Modeling for NaHCO3 and NH4HCO3 Crystals in the System Na+-NH4+-SO42--Cl--H2O from 283.15 to 323.15 K.JOURNAL OF CHEMICAL AND ENGINEERING DATA,65(2),664-677.
MLA	Zhang, Xiaojuan,et al."Solubility and Modeling for NaHCO3 and NH4HCO3 Crystals in the System Na+-NH4+-SO42--Cl--H2O from 283.15 to 323.15 K".JOURNAL OF CHEMICAL AND ENGINEERING DATA 65.2(2020):664-677.