公开(公告)号：WO2016123194A1

公开(公告)日：2016-08-04

申请号：PCT/US2016/015080

申请日：2016-01-27

Applicant: LYONDELLBASELL ACETYLS, LLC

Inventor： SALISBURY, Brian, A. ,  DESHPANDE, Sanjeev ,  FITZPATRICK, Michael, E. ,  HALLINAN, Noel, C. ,  HEARN, John, D.

IPC: C07C51/12 ,  C07C51/493 ,  C07C53/08

CPC classification number: C07C51/12 ,  B01J31/0225 ,  B01J31/10 ,  B01J2231/49 ,  C07C51/44 ,  C07C51/493 ,  Y02P20/127 ,  C07C53/08

Abstract: The present technology relates to the production and recovery of acetic acid. The recovery processes may include providing a first process stream including acetic acid and greater than 250 ppm of propionic acid; separating at least a portion of the propionic acid from the acetic acid within the first process stream to provide an acetic acid stream including acetic acid and less than 250 ppm of propionic acid and a bottoms stream including propionic acid and acetic acid; reacting the bottoms stream to form a product stream including components of respectively lower boiling points than corresponding components in the bottoms stream; and separating components of the product stream to form, an overhead stream including one or more acetates and a bottoms stream including one or more propionates.

Abstract translation: 本技术涉及乙酸的生产和回收。 回收过程可以包括提供包括乙酸和大于250ppm丙酸的第一工艺流; 在第一工艺流中将至少一部分丙酸与乙酸分离以提供包含乙酸和小于250ppm丙酸的乙酸流和包含丙酸和乙酸的底部物流; 使底部物流反应形成包含分别低于塔底物流中相应成分沸点的组分的产物流; 并分离产物流的组分以形成包含一种或多种乙酸盐的塔顶物流和包含一种或多种丙酸盐的底部物流。