Title:
METHOD FOR PREPARING ISOPROPYL ALCOHOL
Document Type and Number:
WIPO Patent Application WO/2024/043443
Kind Code:
A1
Abstract:
The present invention provides a method for preparing isopropyl alcohol (IPA), comprising the steps of: (S1) passing reaction water through a first heat exchanger and a second heat exchanger to raise the temperature thereof; (S2) supplying, to a reactor, the reaction water having passed through the second heat exchanger along with a propylene monomer, as a feed stream to produce a gaseous reaction product comprising IPA; (S3) purifying IPA from the gaseous reaction product and recovering process water therefrom; and (S4) passing the process water through the second heat exchanger to cool same, and transferring a portion of the cooled process water to the first heat exchanger, wherein the temperature of the reaction water is primarily raised by coming into contact with the portion of the cooled process water in the first heat exchanger, and then secondarily raised by coming into contact with the process water in the second heat exchanger.
Inventors:
HWANG SUNG JUNE (KR)
LEE SUNG KYU (KR)
JANG KYUNG SOO (KR)
LIM KIL TAEK (KR)
LEE SUNG KYU (KR)
JANG KYUNG SOO (KR)
LIM KIL TAEK (KR)
Application Number:
PCT/KR2023/007144
Publication Date:
February 29, 2024
Filing Date:
May 25, 2023
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C07C29/04; C07C29/76; C07C29/88; C07C31/10; C07C31/12
Foreign References:
| US3989762A | 1976-11-02 | |||
| KR20190019060A | 2019-02-26 | |||
| KR20040055805A | 2004-06-26 | |||
| KR100219006B1 | 1999-09-01 | |||
| JP2010083825A | 2010-04-15 |
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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