Vapor-Liquid Equilibria of the FeSO4-Fe-2(SO4)(3)-H2SO4-H2O System at (30, 60, 90, and 101.3) kPa

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	Vapor-Liquid Equilibria of the FeSO4-Fe-2(SO4)(3)-H2SO4-H2O System at (30, 60, 90, and 101.3) kPa
	Zhang, Yan; Li, Zhibao
刊名	JOURNAL OF CHEMICAL AND ENGINEERING DATA
	2015-03-01
卷号	60 期号:3 页码:947-954
关键词	SOLVENT ELECTROLYTE SYSTEMS SULFATE-SOLUTIONS SULFURIC-ACID AQUEOUS-SOLUTIONS CALCIUM-SULFATE FERRIC SULFATE PLUS ETHANOL SPECIATION CHALCOPYRITE SOLUBILITY
ISSN号	0021-9568
通讯作者	Li, ZB (reprint author), Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China.
英文摘要	Vapor-liquid equilibrium (boiling point) data of the FeSO4-Fe-2(SO4)(3)H2SO4H2O system were measured by the quasi-static ebulliometric method at (30, 60, 90, and 101.3) kPa. The boiling points were found to increase with increasing concentrations of both the salts and the acid. By use of the thermodaynamic data (Delta(0)(Gf,298.15K), Delta H-f,298.15K(0), and S-f,298.15K(0)) of ferric complex ions (FeSO4+, Fe(SO4)(2), and FeHSO42+) predicted by Helgesons equation, a comprehensive thermodynamic model for the system was developed with the mixed-solvent electrolyte (MSE) model. Model parameters were determined via regressing our own experimental boiling points and the literature stoichiometric osmotic coefficients (phi(st)) of the Fe-2(SO4)(3)H2SO4H2O system. The average absolute deviations between the regressed boiling points and the experimental data were found to be (0.30 and 0.36) K for the Fe-2(SO4)(3)H2SO4H2O and FeSO4Fe2(SO4)(3)H2SO4H2O systems, respectively, while the average relative deviation for the stoichiometric osmotic coefficient was only 0.80 %. The model with newly obtained parameters was used to predict the distribution of iron-bearing species (Fe3+, FeSO4+, Fe(SO4)(2), and FeHSO42+) as functions of temperature and iron concentration. In addition, plots of the redox potential of Fe(III)/Fe(II) obtained from the literature versus ln(a(Fe3+)/a(Fe2+)) calculated by the newly obtained parameters are straight lines, indicating the good performance of the parameters.
学科主题	Chemistry ; Engineering
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Multidisciplinary ; Engineering, Chemical
研究领域[WOS]	Chemistry ; Engineering
关键词[WOS]	SOLVENT ELECTROLYTE SYSTEMS ; SULFATE-SOLUTIONS ; SULFURIC-ACID ; AQUEOUS-SOLUTIONS ; CALCIUM-SULFATE ; FERRIC SULFATE ; PLUS ETHANOL ; SPECIATION ; CHALCOPYRITE ; SOLUBILITY
收录类别	SCI
语种	英语
WOS记录号	WOS:000351186600063
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13820]
专题	过程工程研究所_研究所（批量导入）
作者单位	Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yan,Li, Zhibao. Vapor-Liquid Equilibria of the FeSO4-Fe-2(SO4)(3)-H2SO4-H2O System at (30, 60, 90, and 101.3) kPa[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2015,60(3):947-954.
APA	Zhang, Yan,&Li, Zhibao.(2015).Vapor-Liquid Equilibria of the FeSO4-Fe-2(SO4)(3)-H2SO4-H2O System at (30, 60, 90, and 101.3) kPa.JOURNAL OF CHEMICAL AND ENGINEERING DATA,60(3),947-954.
MLA	Zhang, Yan,et al."Vapor-Liquid Equilibria of the FeSO4-Fe-2(SO4)(3)-H2SO4-H2O System at (30, 60, 90, and 101.3) kPa".JOURNAL OF CHEMICAL AND ENGINEERING DATA 60.3(2015):947-954.