Phase Diagram for the Na2SO4-(NH4)2SO4-MEA-H2O System at Elevated Temperature

被引：3

作者：

Li, Binghui ^{[1
,3
]}

Zhang, Xiaojuan ^{[1
,2
]}

Li, Zhibao ^{[2
]}

机构：

[1] Univ Chinese Acad Sci, Dept Chem Engn, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China

[3] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2021年 / 66卷 / 08期

基金：

美国国家科学基金会;

关键词：

ANHYDROUS SODIUM-CARBONATE; CRYSTALLIZATION; MONOETHANOLAMINE; SOLUBILITY; ABSORPTION; MIXTURES;

D O I：

10.1021/acs.jced.1c00133

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

It is essential to develop a new antisolvent technology for soda ash manufacture by the use of sodium sulfate as raw material due to intensive energy consumption for the separation of sodium sulfate from ammonia sulfate-bearing liquor by filtering sodium bicarbonate. Phase diagram data for the Na2SO4-(NH4)(2)SO4-monoethanolamine (MEA)-H2O system was determined and modeled to regress the paired-ion interactions included in the mixed-solvent electrolyte model with good accuracy. It was found that the solubility of Na2SO4 in MEA solution sharply decreases with the concentration of MEA, while the addition of MEA as the solvent largely enhances the solubility of (NH4)(2)SO4 in solution. These findings show that sodium sulfate may be efficiently separated from ammonia sulfate solution with the help of MEA antisolvent technology.

引用

页码：3012 / 3019

页数：8

共 22 条

[1] STATISTICAL THERMODYNAMICS OF LIQUID-MIXTURES - NEW EXPRESSION FOR EXCESS GIBBS ENERGY OF PARTLY OR COMPLETELY MISCIBLE SYSTEMS [J].

ABRAMS, DS ;

PRAUSNITZ, JM .

AICHE JOURNAL, 1975, 21 (01) :116-128

[2]

Bichel J., 2004, U.S. Patent, Patent No. [2,004,015,677 A1, 2004015677]

[3]

Bolen W. P., 2020, U.S. Geological Survey Minerals Yearbook, P152

[4] Carbon dioxide absorption by monoethanolamine in hollow fiber membrane contactors: A parametric investigation [J].

Boucif, Noureddine ;

Corriou, Jean Pierre ;

Roizard, Denis ;

Favre, Eric .

AICHE JOURNAL, 2012, 58 (09) :2843-2855

[5] On the design of crystallization-based separation processes:: Review and extension [J].

Cisternas, LA ;

Vásquez, CM ;

Swaney, RE .

AICHE JOURNAL, 2006, 52 (05) :1754-1769

[6] Experimental Investigation of the Reactivity of Sodium Bicarbonate toward Hydrogen Chloride and Sulfur Dioxide at Low Temperatures [J].

Dal Pozzo, Alessandro ;

Moricone, Raffaela ;

Tugnoli, Alessandro ;

Cozzani, Valerio .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2019, 58 (16) :6316-6324

[7]

Garrett D.E., 2001, Sodium Sulfate: Handbook of Deposits, Processing, Properties, and Use, P1

[8] Mixed solvent reactive recrystallization of trona (sodium sesqui-carbonate) into soda (sodium carbonate anhydrate) [J].

Gartner, Robert S. ;

Witkamp, Geert-Jan .

HYDROMETALLURGY, 2007, 88 (1-4) :75-91

[9]

Hentschel B., 1982, U.S. Patent, Patent No. [4,320,106, 4320106]

[10]

Kresnyak S., 1997, U.S. Patent, Patent No. [5,654,351, 5654351]

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