Phase Diagrams of Aliphatic Alcohols + Magnesium Sulfate + Water

Zafarani-Moattar, Mohammed Taghi; Salabat, Alireza

doi:10.1021/je970060t

Cited by 49 publications

(26 citation statements)

References 10 publications

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“…They found that the presence of 1-propanol significantly reduced the solubility of the aqueous solution of potassium sulfate. Zafarani-Moattar et al , studied the ethanol or 1-propanol or 2-propanol or 2-methyl-2-propanol + Mg 2 SO 4 or (NH 4 ) 2 HPO 4 or NH 4 H 2 PO 4 + water systems at 25 °C and 35 °C. Wang et al studied 1-propanol or 2-propanol + water + KF systems.…”

Section: Introductionmentioning

confidence: 99%

Liquid−Liquid and Solid−Liquid Equilibrium of the Ternary System Ethanol + Cesium Sulfate + Water at (10, 30, and 50) °C

Zhai

Liu

et al. 2003

J. Chem. Eng. Data

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Section: Introductionmentioning

confidence: 99%

Liquid−Liquid and Solid−Liquid Equilibrium of the Ternary System Ethanol + Cesium Sulfate + Water at (10, 30, and 50) °C

Zhai

Liu

et al. 2003

J. Chem. Eng. Data

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“…The solubility of 1‐propanol as a function of salt concentration for the four salts tested, and for the published salts CsCl, KF, Na 2 SO 3 , disodium hydrogen citrate(Na 2 C 6 H 6 O 7 ), MgSO 4 , dipotassium Oxalate(C 2 K 2 O 4 ), Na 2 S 2 O 3 , ZnSO 4 , LiCl, NaBr, NaCl, KCl, MnSO 4 were analyzed by fitting Eqn (3) to obtain k s values . The results were shown in Table .…”

Section: Resultsmentioning

confidence: 99%

Salts and 1‐propanol induced aqueous two‐phase systems: phase separation and application

Xie

2019

J of Chemical Tech & Biotech

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BACKGROUND: Today there is a resurgence of interest in using short-chain hydrophilic alcohols and salts to recover stronger polar bio-based chemicals and fuels for use as platform chemicals and renewable alternative transportation fuels. How to reduce the extractant depletion during the recovery of other bio-based chemicals from the fermentation broths is a problem of concern to researchers. RESULTS:The present work investigated a 1-propanol salt aqueous two-phase system and its application to recover bio-based acetoin. The water + 1-propanol + K 4 P 2 O 7 system was preferred for recovering bio-based acetoin according to the recovery of 1-propanol in the 1-propanol salt aqueous two-phase ternary system and after extraction of acetoin, and the salt content in the organic phase so as to avoid the losses of salt and 1-propanol.CONCLUSION: Subsequently, almost 100% of acetoin can be recovered from the aqueous solution; almost all of the salt was retained in the aqueous phase and more than 99% of 1-propanol was recovered.

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“…The precipitation reaction of MgSO 4 was closely related to the solubility of the MgSO 4 in the ethanol-water-MgSO 4 system. Zafarani-Moattar and Salabat measured the solubility of MgSO 4 in a mixed solution of water and ethanol at 25°C [31]. As the portion of the ethanol increased in the mixture of water and ethanol, the solubility of the MgSO 4 decreased.…”

Section: Precipitation Of Mgsomentioning

confidence: 99%

Determination of optimal conditions for magnesium recovery process from seawater desalination brine using paper sludge ash, sulfuric acid, and ethanol

HyeRim¹,

Kim²

2019

Desalination and Water Treatment

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The release of seawater desalination brine with a salt concentration about two times that of seawater without any treatment may cause serious environmental problems. Moreover, because of the higher concentration of dissolved salts present, the amount of recoverable resources is greater, but the impurities become more difficult to control. In this study, we conducted a three-step process to recover Mg resources from seawater desalination brine with Mg concentration of 2,340 mg/L, and determined the optimal conditions for minimizing the impurities and maximizing Mg recovery efficiency at each step. The process was as follows: (1) pre-precipitation of Mg using paper sludge ash (PSA) (PSA:brine = 1:40) (g:mL), (2) dissolution of Mg using 1.0 M sulfuric acid (H 2 SO 4) corresponding to one-fifth of the brine volume, and (3) precipitation of magnesium sulfate (MgSO 4) using ethanol (solution:ethanol = 1:1) (mL:mL). Under the optimal conditions, the reaction efficiencies of the three steps were determined to be 98%, 70.8%, and 88%, respectively, and the overall efficiency of recovering Mg from the seawater desalination brine was 61.1%. The MgSO 4 obtained in this study contained no impurities other than Ca, comprising as much as 6.7% of the precipitate.

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Phase Diagrams of Aliphatic Alcohols + Magnesium Sulfate + Water

Abstract: Phase diagrams for aliphatic alcohols + magnesium sulfate + water were measured. The alcohols used were ethanol, 1-propanol, 2-propanol, and 2-methyl-2-propanol. Phase diagram data were obtained at 25 °C, and for magnesium sulfate + ethanol + water at 25 °C and 35 °C.

Cited by 49 publications

References 10 publications

Liquid−Liquid and Solid−Liquid Equilibrium of the Ternary System Ethanol + Cesium Sulfate + Water at (10, 30, and 50) °C

Liquid−Liquid and Solid−Liquid Equilibrium of the Ternary System Ethanol + Cesium Sulfate + Water at (10, 30, and 50) °C

Salts and 1‐propanol induced aqueous two‐phase systems: phase separation and application

Determination of optimal conditions for magnesium recovery process from seawater desalination brine using paper sludge ash, sulfuric acid, and ethanol

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