Influence of the diluent on the extraction of acetic acid from the prehydrolysis liquor of kraft based dissolving pulp production process by tertiary amine

被引：20

作者：

Yang, Guihua ^{[1
,2
]}

Jahan, M. Samar ^{[1
,3
]}

Ahsan, Laboni ^{[1
]}

Ni, Yonghao ^{[1
]}

机构：

[1] Univ New Brunswick, Limerick Pulp & Paper Ctr, Fredericton, NB E3B 5A3, Canada

[2] Qilu Univ Technol, Key Lab Pulp & Paper Sci & Technol, Minist Educ, Jinan 250353, Shandong, Peoples R China

[3] BCSIR Labs, Pulp & Paper Res Div, Dhaka 1205, Bangladesh

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2013年 / 120卷

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

Acetic acid; Pre-hydrolysis liquor; Tertiary amine; Diluent; 2-Ethyl-1-hexanol; Recovery and regeneration; PRE-HYDROLYSIS LIQUOR; TRI-N-OCTYLAMINE; REACTIVE EXTRACTION; CARBOXYLIC-ACIDS; PYROLYSIS OIL; FORMIC-ACID; RECOVERY; EQUILIBRIA; TRIOCTYLAMINE; COEXTRACTION;

D O I：

10.1016/j.seppur.2013.10.004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Different diluents including 1-decanol, 1-octanol and 2-ethyl-1-hexanol and kerosene have been evaluated in extracting acetic acid from the treated prehydrolysis liquor (TPHL) by triisooctylamine (TIOA) or trioctylamine (TOA). Diluent played an important role in recovering acetic acid from the TPHL, thus affecting the extraction equilibrium and extraction efficiency. Polar diluent like 1-decanol, 1-octanol and 2-ethyl-1-hexanol showed better performance than the nonpolar diluent kerosene. The maximum extraction efficiency was 68.79%, which was from 2-ethyl-1-hexanol. The organic solvent was regenerated and extracted HAc was recovered by aqueous sodium hydroxide. The regeneration efficiency can be improved by increasing molar ratio of sodium hydroxide to HAc. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：341 / 345

页数：5

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