PURIFICATION OF WET PROCESS PHOSPHORIC-ACID BY SOLVENT-EXTRACTION LIQUID-LIQUID EQUILIBRIUM AT 25-DEGREES-C AND 40-DEGREES-C OF THE SYSTEM WATER PHOSPHORIC-ACID METHYLISOBUTYLKETONE

被引：42

作者：

FEKI, M ^{[1
]}

FOURATI, M ^{[1
]}

CHAABOUNI, MM ^{[1
]}

AYEDI, HF ^{[1
]}

机构：

[1] ECOLE NATL INGN SFAX,CHIM IND LAB,SFAX 3038,TUNISIA

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1994年 / 72卷 / 05期

关键词：

PHASE EQUILIBRIUM; LIQUID-LIQUID EQUILIBRIUM; WET PROCESS PHOSPHORIC ACID PURIFICATION;

D O I：

10.1002/cjce.5450720523

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Solubility and liquid-liquid phase equilibrium data are presented for the ternary system water-phosphoric acid-methyl isobutyl ketone at 25 and 40 degrees C. Binodal curves, tie lines and distribution curves have been determined. Hand's method has been used to correlate tie lines and to calculate coordinates of plait points. The heterogeneous region at 40 degrees C appeared to be slightly broader than that at 25 degrees C, and the slopes of tie lines somewhat higher: the solubility of this system increases with decreasing temperature. The distribution curves indicated that methyl isobutyl ketone was an effective extractant for concentrated phosphoric acid solutions only.

引用

页码：939 / 944

页数：6

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