Liquid-Liquid Equilibrium Study of Phenol Extraction with Cyanex 923

被引：19

作者：

Burghoff, Bernhard ^{[1
]}

de Haan, Andre B. ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Dept Chem Engn & Chem, NL-5600 MB Eindhoven, Netherlands

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2009年 / 44卷 / 08期

关键词：

Cyanex; 923; liquid-liquid equilibrium extraction; phenol; SULFURIC-ACID SALTS; SOLVENT-EXTRACTION; IMPREGNATED RESINS; AQUEOUS-SOLUTION; PHOSPHINE OXIDE; IONIC LIQUIDS; RECOVERY; WATER; TRIOCTYLAMINE; REMOVAL;

D O I：

10.1080/01496390902775927

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Although phenol extraction with Cyanex 923 has widely been studied, liquid-liquid equilibrium between phenol and undiluted Cyanex 923 has not been thoroughly investigated. Many factors influence the phenol extraction with undiluted Cyanex 923. Increasing the phenol concentration causes a water molecule replacement in the extractant by phenol molecules. Increasing the pH value above 12 decreases the phenol distribution coefficient KD by 99.9%. A temperature increase from 15 degrees C to 65 degrees C results in a KD decrease of 70%. With increasing salt content KD increases due to salting-out. Adding organic acids stabilizes phenol in the aqueous phase and obstructs the extraction.

引用

页码：1753 / 1771

页数：19

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