KR930002297A - Methyl glycolate manufacturing process - Google Patents

Methyl glycolate manufacturing process Download PDF

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Publication number
KR930002297A
KR930002297A KR1019910012346A KR910012346A KR930002297A KR 930002297 A KR930002297 A KR 930002297A KR 1019910012346 A KR1019910012346 A KR 1019910012346A KR 910012346 A KR910012346 A KR 910012346A KR 930002297 A KR930002297 A KR 930002297A
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KR
South Korea
Prior art keywords
formaldehyde
reactor
methyl glycolate
methylal
glycolic acid
Prior art date
Application number
KR1019910012346A
Other languages
Korean (ko)
Other versions
KR950011114B1 (en
Inventor
김재창
정민석
이상영
이덕성
이재성
김영걸
Original Assignee
정명식
포항종합제철 주식회사
백덕현
재단법인 산업과학기술연구소
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 정명식, 포항종합제철 주식회사, 백덕현, 재단법인 산업과학기술연구소 filed Critical 정명식
Priority to KR1019910012346A priority Critical patent/KR950011114B1/en
Publication of KR930002297A publication Critical patent/KR930002297A/en
Application granted granted Critical
Publication of KR950011114B1 publication Critical patent/KR950011114B1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
    • C07C69/675—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids of saturated hydroxy-carboxylic acids
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

내용 없음.No content.

Description

메틸글리콜레이트의 제조공정Methyl glycolate manufacturing process

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따르는 메틸글리콜레이트의 제조공정도.1 is a manufacturing process of the methyl glycolate according to the present invention.

Claims (1)

포름알데하이드를 원료물질로 하여 메틸글리콜레이트를 제조하는 공정에 있어서, 원료물질인 포름알데하이드와 일산화탄소를 원료 혼합기 (1)에서 혼합하고 글리콜산 반응기(2)를 통해 포름알데하이드를 다량 포함하는 글리콜산을 생성시키는 단계 ; 상기 글리콜산을 메탄올이 첨가되는 에스테르화 반응기(3)에서 메틸글리콜레이트로 에스테르화하고, 미반응된 포름알데하이드를 메탄올을 과량 첨가하여 메틸알로 제조하는 단계 ; 상기 에스테르화 반응기 (3)를 통하여 생성되는 메틸글리콜레이트와 메틸알의 혼합물을 증류탑(4)을 통하여 각기 분리한 후 상기 메틸글리콜레이트는 라인(8)을 통해 에틸렌글리콜을 합성하기 위한 수소화 반응기(9)로 투입하고, 상기 메틸알은 라인(5)를 통해 포름알데하이드 제조 반응기(6)로 투입하는 단계 ; 와 상기 포름알데하이드 제조반응기 (6)에 투입된 메틸알은 통상의 철-몰리브덴 촉매계를 사용하여 고농도 포름알데하이드를 생성시키고 농축기(7)에서 수분을 제거시킨 후 윈료 혼합기(1)로 재순환 시키는 단계로 구성됨을 특징으로 하는 메틸글리콜레이트의 제조공정.In the process of preparing methyl glycolate using formaldehyde as a raw material, glycolic acid containing a large amount of formaldehyde is mixed through a glycolic acid reactor (2) by mixing formaldehyde and carbon monoxide as raw materials in a raw material mixer (1). Generating step; Esterifying the glycolic acid with methylglycolate in an esterification reactor (3) to which methanol is added, and adding unreacted formaldehyde to methanol to produce methylal; After separating the mixture of methyl glycolate and methylal produced through the esterification reactor (3) through the distillation column (4), respectively, the methyl glycolate is a hydrogenation reactor for synthesizing ethylene glycol through the line (8) ( 9), the methylal is introduced into the formaldehyde production reactor (6) through the line (5); And methylal introduced into the formaldehyde production reactor (6) consists of producing a high concentration of formaldehyde using a conventional iron-molybdenum catalyst system, removing water from the concentrator (7), and then recycling it to the winch mixer (1). Methyl glycolate production process characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910012346A 1991-07-19 1991-07-19 Process for preparing methylglycolate KR950011114B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910012346A KR950011114B1 (en) 1991-07-19 1991-07-19 Process for preparing methylglycolate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910012346A KR950011114B1 (en) 1991-07-19 1991-07-19 Process for preparing methylglycolate

Publications (2)

Publication Number Publication Date
KR930002297A true KR930002297A (en) 1993-02-22
KR950011114B1 KR950011114B1 (en) 1995-09-28

Family

ID=19317491

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910012346A KR950011114B1 (en) 1991-07-19 1991-07-19 Process for preparing methylglycolate

Country Status (1)

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KR (1) KR950011114B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201505981D0 (en) 2015-04-08 2015-05-20 Johnson Matthey Davy Technologies Ltd Process
GB201615762D0 (en) 2016-09-16 2016-11-02 Johnson Matthey Davy Technologies Ltd Process

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Publication number Publication date
KR950011114B1 (en) 1995-09-28

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