KR950017905A - Method for separating methyl glycolate in acid reaction solution - Google Patents
Method for separating methyl glycolate in acid reaction solution Download PDFInfo
- Publication number
- KR950017905A KR950017905A KR1019930029654A KR930029654A KR950017905A KR 950017905 A KR950017905 A KR 950017905A KR 1019930029654 A KR1019930029654 A KR 1019930029654A KR 930029654 A KR930029654 A KR 930029654A KR 950017905 A KR950017905 A KR 950017905A
- Authority
- KR
- South Korea
- Prior art keywords
- methyl glycolate
- solvent
- reaction solution
- reaction
- separating
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/58—Preparation of carboxylic acid halides
- C07C51/64—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/01—Saturated compounds having only one carboxyl group and containing hydroxy or O-metal groups
- C07C59/06—Glycolic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
본 발명은 메틸클리콜레이트를 분리 회수하는 방법에 관한 것이며, 특히 에틸렌 글리콜 제조에 있어서 에스테르화 반응후에 산출되는 반응생성물인 메틸글리콜레이트와 잔류 산성물질로 이루어진 산성반응액으로부터 메틸글리콜레이트를 분리회수하는 방법에 관한 것이다.The present invention relates to a method for separating and recovering methyl glycolate, and in particular, in the preparation of ethylene glycol, methyl glycolate is separated and recovered from an acid reaction solution comprising methyl glycolate, which is a reaction product produced after an esterification reaction, and a residual acidic substance. It is about a method.
이 방법은 산성인 반응액에 열기를 첨가하여 중화시켜 증류함으로써 중화에 의해 생성된 고체 염과 액상의 메틸글리콜레이트 용액을 고액분리하여 고수율의 메틸글리콜레이트를 얻을 수 있으며, 이로부터 종래의 방법에서 증류시 산성용액의 산도 증가에 따른 메틸글리콜레이트의 결합 및 이로인한 수율감소와 산처리 문제를 해결할 수 있는 것이다.In this method, by adding hot air to the acidic reaction solution, neutralizing it, and distilling it to obtain a high yield of methylglycolate by solid-liquid separation of the solid salt produced by the neutralization and the liquid methylglycolate solution. In the distillation in the acid solution of the methylglycol due to the increase in acidity of the solution, thereby reducing the yield and acid treatment problems can be solved.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 에틸렌글리콜 제조공정을 개략적으로 나타낸 공정도,1 is a process diagram schematically showing a process for producing ethylene glycol,
제2도는 본 발명의 방법을 실시하기 위한 공정 예시도.2 is a process illustration for carrying out the method of the present invention.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930029654A KR0124821B1 (en) | 1993-12-24 | 1993-12-24 | Separation of methylglycolate from acidic solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930029654A KR0124821B1 (en) | 1993-12-24 | 1993-12-24 | Separation of methylglycolate from acidic solution |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950017905A true KR950017905A (en) | 1995-07-20 |
KR0124821B1 KR0124821B1 (en) | 1997-12-01 |
Family
ID=19372689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930029654A KR0124821B1 (en) | 1993-12-24 | 1993-12-24 | Separation of methylglycolate from acidic solution |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0124821B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201505981D0 (en) | 2015-04-08 | 2015-05-20 | Johnson Matthey Davy Technologies Ltd | Process |
GB201505977D0 (en) | 2015-04-08 | 2015-05-20 | Johnson Matthey Davy Technologies Ltd | Catalyst system and process |
GB201615762D0 (en) | 2016-09-16 | 2016-11-02 | Johnson Matthey Davy Technologies Ltd | Process |
-
1993
- 1993-12-24 KR KR1019930029654A patent/KR0124821B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0124821B1 (en) | 1997-12-01 |
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