Title:
METHOD AND SYSTEM FOR PREPARING ACETIC ACID BY REGULATING AND CONTROLLING METHANOL CARBONYLATION
Document Type and Number:
WIPO Patent Application WO/2024/040783
Kind Code:
A1
Abstract:
The present invention provides a method and system for preparing acetic acid by regulating and controlling methanol carbonylation. The method comprises: producing acetic acid by using a methanol carbonylation method, and when a stable state of a catalyst is kept, regulating and controlling the yield of the acetic acid by regulating and controlling one or more selected from rhodium concentration, lithium iodide concentration, and a flash evaporation temperature. The present invention provides a method and system for preparing acetic acid by regulating and controlling methanol carbonylation, and relates to a continuous production method and device; the flash evaporation efficiency is high and controllable, a catalyst system is stable, and the accumulation of byproducts in the system can be effectively prevented.
Inventors:
NI HARRY (CN)
GU WEIYAO (CN)
GU WEIYAO (CN)
Application Number:
PCT/CN2022/135905
Publication Date:
February 29, 2024
Filing Date:
December 01, 2022
Export Citation:
Assignee:
OPTIMUM PROCESS TECH SHANGHAI CO LTD (CN)
International Classes:
C07C51/12; C07C53/08
Foreign References:
| CN115197059A | 2022-10-18 | |||
| CN102471209A | 2012-05-23 | |||
| CN111646894A | 2020-09-11 | |||
| CN109641826A | 2019-04-16 | |||
| CN101225038A | 2008-07-23 | |||
| JP2017165693A | 2017-09-21 |
Attorney, Agent or Firm:
J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (GENERAL PARTNERSHIP) (CN)
Download PDF: