Experimental-computational approach for elucidating the dissolution behavior of potassium phosphates in near- and supercritical water

doi:10.1016/j.supflu.2021.105488

	Experimental-computational approach for elucidating the dissolution behavior of potassium phosphates in near- and supercritical water
	Ding, Xin 1,2; Sheehan, James D.5; Zhang, Tian 3,4; Shen, Zhenxing 3,4; Wang, Yuqi 1; Jiang, Zhao 2; Fang, Tao 2
通讯作者	Fang, Tao(taofang@xjtu.edu.cn)
	2022-02-01
发表期刊	JOURNAL OF SUPERCRITICAL FLUIDS
ISSN	0896-8446
卷号	181 页码:12
摘要	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.
关键词	Dipotassium phosphate Monopotassium phosphate Solubility Near- and supercritical water Thermodynamic modeling
DOI	10.1016/j.supflu.2021.105488
关键词[WOS]	HYDROTHERMAL GASIFICATION ; TRANSPORT-PROPERTIES ; CORROSION BEHAVIOR ; SUBCRITICAL WATER ; INORGANIC ANIONS ; HIGH-PRESSURES ; SEWAGE-SLUDGE ; TEMPERATURES ; SOLUBILITY ; SUB
收录类别	SCI ; SCI
语种	英语
资助项目	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研究方向	Chemistry ; Engineering
项目资助者	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类目	Chemistry, Physical ; Engineering, Chemical
WOS记录号	WOS:000740349200010
出版者	ELSEVIER
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17357
专题	中国科学院气溶胶化学与物理重点实验室
通讯作者	Fang, Tao
作者单位	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
推荐引用方式 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.