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| 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 Author | Fang, Tao(taofang@xjtu.edu.cn) |
| 2022-02-01 | |
| Source Publication | JOURNAL OF SUPERCRITICAL FLUIDS
 |
| ISSN | 0896-8446 |
| Volume | 181Pages:12 |
| Abstract | The 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. |
| Keyword | Dipotassium phosphate Monopotassium phosphate Solubility Near- and supercritical water Thermodynamic modeling |
| DOI | 10.1016/j.supflu.2021.105488 |
| WOS Keyword | HYDROTHERMAL GASIFICATION ; TRANSPORT-PROPERTIES ; CORROSION BEHAVIOR ; SUBCRITICAL WATER ; INORGANIC ANIONS ; HIGH-PRESSURES ; SEWAGE-SLUDGE ; TEMPERATURES ; SOLUBILITY ; SUB |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| Funding Project | National 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 Area | Chemistry ; Engineering |
| Funding Organization | National 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 Subject | Chemistry, Physical ; Engineering, Chemical |
| WOS ID | WOS:000740349200010 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Author | Fang, Tao |
| Affiliation | 1.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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