KR830006163A - 메타아크릴산메틸의 정제방법 - Google Patents

메타아크릴산메틸의 정제방법 Download PDF

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Publication number
KR830006163A
KR830006163A KR1019810002241A KR810002241A KR830006163A KR 830006163 A KR830006163 A KR 830006163A KR 1019810002241 A KR1019810002241 A KR 1019810002241A KR 810002241 A KR810002241 A KR 810002241A KR 830006163 A KR830006163 A KR 830006163A
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South Korea
Prior art keywords
distillation column
methyl methacrylate
methanol
methyl
water
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KR1019810002241A
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English (en)
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KR840001899B1 (ko
Inventor
아쓰시 아오지마
요시오 스즈끼
미끼히꼬 나까무라
Original Assignee
세꼬마오미
아사히가세이 고오교오 가부시기가이샤
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Priority claimed from JP8354380A external-priority patent/JPS579740A/ja
Priority claimed from JP8354280A external-priority patent/JPS579739A/ja
Application filed by 세꼬마오미, 아사히가세이 고오교오 가부시기가이샤 filed Critical 세꼬마오미
Publication of KR830006163A publication Critical patent/KR830006163A/ko
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Publication of KR840001899B1 publication Critical patent/KR840001899B1/ko

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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
    • C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
    • C07C69/533—Monocarboxylic acid esters having only one carbon-to-carbon double bond
    • C07C69/54—Acrylic acid esters; Methacrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/20—Power plant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/22—Accessories

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

내용 없음

Description

메틸 메타아크릴레이트의 정제방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (6)

  1. 탄소수 6내지 7의 포화탄화수소가 컬럼에 공급혼합물을 공급한 스테이지 상부에만 전량이 증류하고,상기 포화탄화수소와 메탄올, 포화탄화수소, 메틸이소부티테이트를 증류컬럼의 상부를 통하여 증류하고, 증류컬럼하부로부터 직접 메타크를산메틸을 회수하거나 비닥의 액체를 메타크릴산메틸로 주로 이루어진 유기층과 물로 주로 이루어진 물층으로 분리하고 상기 물층을 분리하여 회수함을 특징으로하여, 메탄올, 메타크릴산메틸, 물 또는 소량의 메틸이소부티테이트를 함유하는 공급혼합물을 증유컬럼에 공급하고, 증류하여 메타크릴산메틸을 정제하는 벙법.
  2. 메탄올, 메타크릴산메틸, 물을 함유하는 공급혼합물을 증류컬럼에 공급하고, 탄소수 6또는 7의 포화탄화수소를 공급혼합물이 증류컬럼에 공급된 스테이지 상부에만 전량 존재하도록 공급하고 증류컬럼의 상부를 통하여 메탄올 전량과 포화탄화수소를 증류, 그리고 물로서 주로 이루어진 물층과 메타크릴산메틸로서 주로 이루어진 유기층으로 바닥액체를 분리하여 메타크릴산메틸을 회수하고, 상기 물츨을 제거하여 청구범위 제1항에 따른 메타크릴산메틸의 정제방법.
  3. 메탄올, 메타크릴산메틸, 물, 소량의 메틸이소부티테이트를 함유하는 공급혼합물을 증류컬럼에 공급하고, 탄소수 6 또는 7의 포화탄화수소를 공급혼합물이 증류컬럼에 공급된 스테이지상에만 전량 존재하도록 공급하고, 메타크릴산메틸을 증류컬럼의 하부로부터 직접회수하여, 청구범위 제1항에 따른 메타크릴산메틸의 정제방법.
  4. 메탄올, 메타크릴산메틸, 물, 소량의 메틸이소부티테이트를 함유하는 공급혼합물을 제1증류컬럼에 공급하고, 탄소수 6 또는 7의 포화탄화수소를 공급혼합물이 증류컬럼에 공급된 스테이지상에만 전량 존재하도록 공급하고, 제1증류컬럼의 상부를 통하여 메탄올전량과 메틸이소부티테이트, 포화탄화수소를 증류하고 물층과 유기층으로 분리한 후 물층을 제거하여 미타크릴산메틸을 회수하여, 청구범위 제1항에 따른 메타크릴산메틸의 정제방법.
  5. 증류컬럼의 상부로부터의 증류액을 분리용기 내에서 물층과 유기층으로 분리하고, 상기 포화탄화수소층은 증류컬럼에서 환류하고, 상기 메탄올층은 제2증류컬럼에 공급하고, 메틸이소부티테이트와 메탄올의 조합 또는 공급에서 함유된 메탄올량에 상당하는 메탄올량을 제2증류컬럼바닥으로부터 제거하고, 포화탄화수소는 제2증류컬럼의 상부를 통하여 메탄올 일부를 회수하고 상기 분리용기에 재순환시키는 청구범위 제1항에 따른 메탄크릴산메틸의 정제방법.
  6. 탄소수 6또는 7의 포화탄화수소가 핵산인 청구범위 제1,2,3,4 또는 5항에 따른 메타크릴산메틸의 정제방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019810002241A 1980-06-20 1981-06-19 메틸 메타아크릴레이트의 정제방법 KR840001899B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP83543 1980-06-20
JP8354380A JPS579740A (en) 1980-06-20 1980-06-20 Purification of methyl methacrylate
JP83542 1980-06-20
JP8354280A JPS579739A (en) 1980-06-20 1980-06-20 Purification of methyl methacrylate

Publications (2)

Publication Number Publication Date
KR830006163A true KR830006163A (ko) 1983-09-17
KR840001899B1 KR840001899B1 (ko) 1984-10-24

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US (1) US4518462A (ko)
EP (1) EP0044409B1 (ko)
KR (1) KR840001899B1 (ko)
DE (1) DE3161884D1 (ko)

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KR20180094935A (ko) * 2015-12-18 2018-08-24 롬 앤드 하아스 컴패니 메틸 메타크릴레이트의 정제 방법

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180094935A (ko) * 2015-12-18 2018-08-24 롬 앤드 하아스 컴패니 메틸 메타크릴레이트의 정제 방법

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Publication number Publication date
US4518462A (en) 1985-05-21
DE3161884D1 (en) 1984-02-16
EP0044409A1 (en) 1982-01-27
KR840001899B1 (ko) 1984-10-24
EP0044409B1 (en) 1984-01-11

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