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Measurement and Modeling of the Solubility of NH4VO3 in the Na2HPO4-H2O and (NH4)(2)HPO4-H2O Systems
Gong, Xuli1,2,3; Ning, Pengge1,2; Cao, Hongbin1,2; Zhang, Changqiao3
2016
Source PublicationJOURNAL OF CHEMICAL AND ENGINEERING DATA
ISSN0021-9568
Volume61Issue:1Pages:628-635
AbstractThe solubilities of ammonium metavanadate (NH4VO3) in (NH4)(2)HPO4-H2O and Na2HPO4-H2O systems were measured in the temperature range from 298.15 to 338.15 K by the isothermal dissolution method. The experimental data indicate that the solubility of NH4VO3 increases with the addition of Na2HPO4, while it first decreases and then increases with the addition of (NH4)(2)HPO4. The common ion effect and chemical equilibrium were used to explain the solubility tendencies. Two models, the Bromley-Zemaitis model and Pitzer model, were selected to correlate the solubilities of NH4VO3 in the above systems. The parameters of the new model referring to four ion-ion pairs and one ion-molecule pair were obtained via the regression of the experimental data, and the results agreed well with the experimental values. The new chemical model was then applied to analyze the main vanadium-bearing species distribution in the systems mentioned above. All of this work will develop the thermodynamics for an industrial application in the precipitation of NH4VO3.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/acs.jced.5b00780
Indexed BySCI
Language英语
WOS KeywordSOLVENT-EXTRACTION ; 323 K ; THERMODYNAMIC PROPERTIES ; TRANSPORT-PROPERTIES ; NON-ELECTROLYTES ; HIGH-PRESSURES ; VANADIUM ; TEMPERATURES ; SEPARATION ; CATALYST
WOS Research AreaThermodynamics ; Chemistry ; Engineering
WOS SubjectThermodynamics ; Chemistry, Multidisciplinary ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(51178446 ; 21202068)
WOS IDWOS:000368564600073
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20602
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
3.Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China
Recommended Citation
GB/T 7714
Gong, Xuli,Ning, Pengge,Cao, Hongbin,et al. Measurement and Modeling of the Solubility of NH4VO3 in the Na2HPO4-H2O and (NH4)(2)HPO4-H2O Systems[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2016,61(1):628-635.
APA Gong, Xuli,Ning, Pengge,Cao, Hongbin,&Zhang, Changqiao.(2016).Measurement and Modeling of the Solubility of NH4VO3 in the Na2HPO4-H2O and (NH4)(2)HPO4-H2O Systems.JOURNAL OF CHEMICAL AND ENGINEERING DATA,61(1),628-635.
MLA Gong, Xuli,et al."Measurement and Modeling of the Solubility of NH4VO3 in the Na2HPO4-H2O and (NH4)(2)HPO4-H2O Systems".JOURNAL OF CHEMICAL AND ENGINEERING DATA 61.1(2016):628-635.
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