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Solubility and Modeling for NaHCO3 and NH4HCO3 Crystals in the System Na+-NH4+-SO42--Cl--H2O from 283.15 to 323.15 K
Zhang, Xiaojuan1,2; Li, Zhibao1
2020-02-01
Source PublicationJOURNAL OF CHEMICAL AND ENGINEERING DATA
ISSN0021-9568
Volume65Issue:2Pages:664-677
AbstractSulfate 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.
DOI10.1021/acs.jced.9b00901
Language英语
WOS KeywordPARTIAL MOLAL PROPERTIES ; HIGH-PRESSURES ; ELECTROLYTES ; TEMPERATURES ; NA2SIO3-CENTER-DOT-9H(2)O ; EQUILIBRIUM ; PREDICTION ; MIXTURES ; STANDARD
Funding ProjectNational Science Foundation of China[21776279] ; National Science Foundation of China[21978290]
WOS Research AreaThermodynamics ; Chemistry ; Engineering
WOS SubjectThermodynamics ; Chemistry, Multidisciplinary ; Engineering, Chemical
Funding OrganizationNational Science Foundation of China
WOS IDWOS:000514221900036
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39828
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Zhibao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
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.
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