IEECAS OpenIR  > 中国科学院气溶胶化学与物理重点实验室
Experimental-computational approach for elucidating the dissolution behavior of potassium phosphates in near- and supercritical water
Ding, Xin1,2; Sheehan, James D.5; Zhang, Tian3,4; Shen, Zhenxing3,4; Wang, Yuqi1; Jiang, Zhao2; Fang, Tao2
Corresponding AuthorFang, Tao(taofang@xjtu.edu.cn)
2022-02-01
Source PublicationJOURNAL OF SUPERCRITICAL FLUIDS
ISSN0896-8446
Volume181Pages:12
AbstractThe present work investigates the solubility of dipotassium and monopotassium phosphate in near- and supercritical water. The highest solubilities exceeded 100 mmol kg(-1) at 633.15 K and 30 MPa, the lowest temperature and highest pressure conditions examined, while at 723.15 K and 19 MPa, the lowest solubilities were observed for approximately 0.2 mmol kg(-1) and 0.001 mmol kg(-1). For potassium phosphates, increasing density and decreasing temperature monotonically increased their solubility. Three semi-empirical models were employed to correlate the measured solubility data. Enthalpy model and ionization model were demonstrated to provide the highest accuracies for correlating the experimental solubility of di- and monopotassium phosphate, respectively. The chemical equilibrium reactions facilitating the dissolution and precipitation of potassium phosphates were assessed by theoretical calculations via R-HKF equations of state. Calculations by the R-HKF EOS indicated that precipitation was thermodynamically favored under all conditions, however, increasing temperature and water density promoted the dissolution and hydrolysis of potassium phosphates.
KeywordDipotassium phosphate Monopotassium phosphate Solubility Near- and supercritical water Thermodynamic modeling
DOI10.1016/j.supflu.2021.105488
WOS KeywordHYDROTHERMAL GASIFICATION ; TRANSPORT-PROPERTIES ; CORROSION BEHAVIOR ; SUBCRITICAL WATER ; INORGANIC ANIONS ; HIGH-PRESSURES ; SEWAGE-SLUDGE ; TEMPERATURES ; SOLUBILITY ; SUB
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[22108228] ; National Natural Science Foundation of China[21706203] ; Special Guidance Funds for the Construction of World-Class Universities (Disciplines) and Characteristic Development in Central Universities[PY3A076] ; China Postdoctoral Science Foundation[2019M663731] ; China Postdoctoral Science Foundation[2019M660258] ; Natural Science Basic Research Plan in Shaanxi Province of China[2017JQ2030] ; Natural Science Basic Research Plan in Shaanxi Province of China[2020JQ-023] ; Fundamental Research Funds for the Central Universities in Xi'an Jiaotong University[cxtd2017004] ; Fundamental Research Funds for the Central Universities in Xi'an Jiaotong University[xjj2018035] ; Shaanxi Crea-tive Talents Promotion Plan-Technological Innovation Team[2019TD-039] ; Joint Laboratory of Xi'an JiaotongUniv ; Shaanxi Coal Chemical Industry Technology Research Insti-tute Co. Ltd.
WOS Research AreaChemistry ; Engineering
Funding OrganizationNational Natural Science Foundation of China ; Special Guidance Funds for the Construction of World-Class Universities (Disciplines) and Characteristic Development in Central Universities ; China Postdoctoral Science Foundation ; Natural Science Basic Research Plan in Shaanxi Province of China ; Fundamental Research Funds for the Central Universities in Xi'an Jiaotong University ; Shaanxi Crea-tive Talents Promotion Plan-Technological Innovation Team ; Joint Laboratory of Xi'an JiaotongUniv ; Shaanxi Coal Chemical Industry Technology Research Insti-tute Co. Ltd.
WOS SubjectChemistry, Physical ; Engineering, Chemical
WOS IDWOS:000740349200010
PublisherELSEVIER
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/17357
Collection中国科学院气溶胶化学与物理重点实验室
Corresponding AuthorFang, Tao
Affiliation1.Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China
2.Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Shaanxi Key Lab Energy Chem Proc Intensificat, Xian 710049, Peoples R China
3.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
5.Univ Alabama, Dept Chem & Biol Engn, Tuscaloosa, AL 35487 USA
Recommended Citation
GB/T 7714
Ding, Xin,Sheehan, James D.,Zhang, Tian,et al. Experimental-computational approach for elucidating the dissolution behavior of potassium phosphates in near- and supercritical water[J]. JOURNAL OF SUPERCRITICAL FLUIDS,2022,181:12.
APA Ding, Xin.,Sheehan, James D..,Zhang, Tian.,Shen, Zhenxing.,Wang, Yuqi.,...&Fang, Tao.(2022).Experimental-computational approach for elucidating the dissolution behavior of potassium phosphates in near- and supercritical water.JOURNAL OF SUPERCRITICAL FLUIDS,181,12.
MLA Ding, Xin,et al."Experimental-computational approach for elucidating the dissolution behavior of potassium phosphates in near- and supercritical water".JOURNAL OF SUPERCRITICAL FLUIDS 181(2022):12.
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