公开(公告)号：US20240002324A1

公开(公告)日：2024-01-04

申请号：US18019147

申请日：2021-07-21

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： DAMON RAY BILLODEAUX ,  KENNETH WAYNE HAMPTON, Jr. ,  CAREY DAN ASHCROFT

IPC: C07C51/09 ,  C07C67/38 ,  B01J31/24 ,  B01J31/22 ,  B01J31/20

CPC classification number: C07C51/09 ,  C07C67/38 ,  B01J31/2409 ,  B01J31/2226 ,  B01J31/20 ,  B01J2531/004 ,  B01J2531/824 ,  B01J2531/821 ,  B01J2231/321

Abstract: Provided is a one-pot process for preparing propionic acid, which comprises (i) treating ethylene with a C1-C6 alkanol, water, and carbon monoxide in the presence of a catalyst system comprising the reaction product of (a) a Group 8 to 10 transition metal compound such as a palladium or ruthenium compound; and (b) an activating anion, at elevated temperature and pressure. The process also provides a facile, continuous process for the preparation of propionic acid via the alkoxycarbonylation of ethylene at elevated temperature and pressure followed by hydrolysis, in one reaction vessel.