Title:
METHOD FOR PREPARING NEOPENTYL GLYCOL
Document Type and Number:
WIPO Patent Application WO/2024/053937
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing neopentyl glycol, comprising the steps of: obtaining a first reaction product including neopentyl glycol by hydrogenating in a first hydrogenation reactor; feeding the first reaction product to a flash drum so as to obtain hydrogen and a first stream of degassed solution from which the hydrogen has been degassed; feeding the hydrogen to a second hydrogenation reactor; feeding the first stream of degassed solution to a first heat exchanger so as to reduce the temperature thereof; feeding a portion of the first stream of degassed solution, of which the temperature has been reduced, to the second hydrogenation reactor as a second branched-off stream; conducting hydrogenation reaction in the second hydrogenation reactor to obtain a second reaction product including neopentyl glycol; and subjecting the second reaction product to a neopentyl glycol refining process to obtain neopentyl glycol.
Inventors:
KIM SUNG KYUN (KR)
LEE SUNG KYU (KR)
HA NA RO (KR)
CHO SEUNG SIK (KR)
LEE SUNG KYU (KR)
HA NA RO (KR)
CHO SEUNG SIK (KR)
Application Number:
PCT/KR2023/013050
Publication Date:
March 14, 2024
Filing Date:
September 01, 2023
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C07C29/14; C07C29/74; C07C31/20
Foreign References:
| CN113952895A | 2022-01-21 | |||
| KR20160133843A | 2016-11-23 | |||
| KR20170029311A | 2017-03-15 | |||
| US4855515A | 1989-08-08 | |||
| JPH11130727A | 1999-05-18 |
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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