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1. WO2020111475 - METHOD FOR PREPARING TEREPHTHALATE-BASED COMPOSITION, COMPRISING PRESSURIZATION SECTION

Publication Number WO/2020/111475
Publication Date 04.06.2020
International Application No. PCT/KR2019/012079
International Filing Date 18.09.2019
IPC
C07C 67/02 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
02by interreacting ester groups, i.e. transesterification
C07C 67/48 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
48Separation; Purification; Stabilisation; Use of additives
C07C 69/82 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
69Esters of carboxylic acids; Esters of carbonic or haloformic acids
76Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a six-membered aromatic ring
80Phthalic acid esters
82Terephthalic acid esters
CPC
C07C 67/02
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
02by interreacting ester groups, i.e. transesterification
C07C 67/48
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
48Separation; Purification; Stabilisation; Use of additives
C07C 69/82
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
69Esters of carboxylic acids; Esters of carbonic or haloformic acids
76Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
80Phthalic acid esters
82Terephthalic acid esters
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 이석구 LEE, Seok Goo
  • 이성규 LEE, Sung Kyu
  • 신준호 SHIN, Joon Ho
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2018-014945528.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR PREPARING TEREPHTHALATE-BASED COMPOSITION, COMPRISING PRESSURIZATION SECTION
(FR) PROCÉDÉ DE PRÉPARATION D'UNE COMPOSITION À BASE DE TÉRÉPHTALATE, COMPRENANT UNE SECTION DE MISE SOUS PRESSION
(KO) 가압 구간을 포함하는 테레프탈레이트계 조성물의 제조방법
Abstract
(EN)
The present invention provides a method for preparing a terephthalate-based composition, comprising a pressurization section. The pressurization section in the preparation method of the present invention prevents the evaporation of a primary low-boiling-point alcohol, which is a reactant, thus shortening the reaction time, and also reduces refluxing, thus having the effect of reducing the total manufacturing cost.
(FR)
La présente invention concerne un procédé de préparation d'une composition à base de téréphtalate, comprenant une section de mise sous pression. La section de mise sous pression dans le procédé de préparation fourni par la présente invention empêche l'évaporation d'un alcool primaire à bas point d'ébullition, qui est un réactif, ce qui permet de raccourcir le temps de réaction, et de réduire également le reflux, le coût de fabrication global étant ainsi réduit.
(KO)
본 발명은 가압 구간을 포함하는 테레프탈레이트계 조성물의 제조방법을 제공한다. 본 발명의 제조방법 중의 가압 구간은 반응물인 저비점 1차 알코올의 기화를 막아 반응 시간을 단축시킴과 동시에, 환류를 줄여 전체 공정의 비용을 감축시키는 효과를 가진다.
Also published as
Latest bibliographic data on file with the International Bureau