醋酸废水回收利用技术研究  

The Recovery of Acetic Acid from Industrial Waste

作　　者：李文风[1] 王丹[1] 吴迪[1] 韩翼臣 

机构地区：[1]吉林石化工程设计有限公司,吉林吉林132013 [2]吉林设计院,吉林吉林132002

出　　处：《广州化工》2010年第11期171-172,174,共3页GuangZhou Chemical Industry

摘　　要：从稀醋酸水溶液中回收醋酸是酸性工业废水处理中一项很重要的问题,对于资源再利用和环境污染控制等方面都具有重要意义。作为废水处理和资源回收相结合的过程,现在通常采用的方法是:共沸精馏;简单蒸馏;溶剂萃取,然后精馏回收溶剂;超临界流体萃取或氧化;吸附。本文针对先行方法存在的不足,提出并详细介绍SO42-/Al2O3-Al催化剂条件下的催化精馏反应回收醋酸的原理及意义。Acetic acid recovery was the important problem of acid industrial waste dealing,and had great meaning in resource recycle and pollutant control.Generally,five acetic acid recovery processes were considered： azeotroic distillation,simple distillation,solvent extraction followed by distillation,supercritical fluid extraction or oxidation,and adsorption.Catalytic distillation was utilized for recovering acetic acid from dilute aqueous streams through esterification of acetic acid and ethanol.SO42-/Al2O3-Al as catalyst,the princple and usage of recovery of acetic acid with cataly tic distillation were mainly introduced.

关 键 词：稀醋酸 催化精馏 SO42-/Al2O3-Al催化剂 

分 类 号：X705[环境科学与工程—环境工程]