由废乙酸溶液合成乙酸乙酯  

Synthesizing Acetic Ether from Used Acetic Acid Solution

作　　者：李玉龙[1] 王直刚[1] 王淑兰 

机构地区：[1]大庆石油化工总厂研究院

出　　处：《黑龙江石油化工》1998年第3期21-22,26,共3页Heilongjiang Petrochemical Technology

摘　　要：通过反应精馏工艺技术，使废乙酸溶液中的乙酸生成乙酸乙酯，达到回收乙酸目的。探讨了全回流时间，乙醇、乙酸摩尔比值，塔板数和催化剂Ｈ２ＳＯ４含量４种因素对乙酸回收率的影响，确定了最佳工艺条件，可使乙酸的回收率大于９５％With reaction distillation process to make acetic acid in used acetic acid solution form acetic ether, achieving the purpose of recovery acetic acid. Four factors that affects the recovery rate of acetic acid such as full reflux time, mol ratio of ethanol and acetic acid, number of column trays and content of H2SO4 in catalyst are investigated. The premium process conditions are determined, which makes the recovery rate of acetic acid greater than 95%.

关 键 词：乙酸 乙酸乙酯 酯化反应 反应精馏 合成 

分 类 号：TQ225.24[化学工程—有机化工]