KR950008448A - α-메틸스티렌 불포화 이량체의 제조방법 - Google Patents

α-메틸스티렌 불포화 이량체의 제조방법 Download PDF

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Publication number
KR950008448A
KR950008448A KR1019940023537A KR19940023537A KR950008448A KR 950008448 A KR950008448 A KR 950008448A KR 1019940023537 A KR1019940023537 A KR 1019940023537A KR 19940023537 A KR19940023537 A KR 19940023537A KR 950008448 A KR950008448 A KR 950008448A
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KR
South Korea
Prior art keywords
methylstyrene
catalyst
ethylene carbonate
mainly
reaction
Prior art date
Application number
KR1019940023537A
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English (en)
Inventor
마사시 이나바
시로 이누이
히데키 구로카와
후지오 미즈타니
Original Assignee
미우라 아키라
미쓰비시 유카 가부시키가이샤
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
Priority claimed from JP5257502A external-priority patent/JPH0789883A/ja
Priority claimed from JP5339829A external-priority patent/JPH07157446A/ja
Application filed by 미우라 아키라, 미쓰비시 유카 가부시키가이샤 filed Critical 미우라 아키라
Publication of KR950008448A publication Critical patent/KR950008448A/ko

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/40—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals
    • C07C15/50—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals polycyclic non-condensed
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/16—Clays or other mineral silicates
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

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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

본 발명은 카본산 에스테르, 바람직하게는 에틸렌카보네이트의 존재하에 촉매로서 활성화 점토 또는 산 점토를 사용하여 α-메틸스티렌을 이량체화함을 특징으로 하여 α-메틸스틸렌의 불포화 이량체를 제조하는 방법에 관한 것이며, 이 방법은 반응 온도 조절이 용이하며 불포화 이량체에 대한 선택도가 높다.

Description

α-메틸스틸렌 불포화 이량체의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. 카본산 에스테르의 존재하에 촉매로서 활성화 점토 또는 산 점토를 사용하여 α-메틸스틸렌을 이량체화함을 특징으로 하여 α-메틸스티렌의 불포화 이량체를 제조하는 방법
  2. 제1항에 있어서, 카본산 에스테르가 α-메틸스티렌 중량부당 0.05 내지 1중량부의 양으로 사용되는 방법.
  3. 제1항에 있어서, 카본산 에스테르가 에틸렌 카보네이트인 방법.
  4. 촉매로서 활성화 점토 또는 산 점토를 사용하고 조촉매로서 에틸렌 카보네이트를 사용하여 α-메틸스틸렌을 이량체화하고, 미반응 α-메틸스티렌 및 반응 생성물을 주로 포함하는 상과 촉매 및 에틸렌 카보네이트를 주로 포함하는 상으로 분리하고, 미반응 α-메틸스티렌 및 반응 생성물을 주로 포함하는 상으로부터 α-메틸스티렌의 불포화 이량체를 회수함을 특징으로 하여, α-메틸스티렌의 불포화 이량체를 제조하는 방법.
  5. 제4항에 있어서, 에틸렌 카보네이트 및 활성화 점토 또는 산 점토를 반응기에 충전시키고, 여기에 α-메틸스티렌을 교반하에 50 내지 150℃에서 분할하여 소량씩 가하는 방법.
  6. 제4항에 있어서, 반응 혼합물을 여과하여 촉매를 분리시키고 여액을 액체-액체 분리하는 방법.
  7. 제4항에 있어서, 반응 혼합물을 냉각시킨 후, 고체-액체 분리하여 촉매 존재 또는 부재하의 에틸렌 카보네이트를 주로 포함하는 고체상을 분리하는 방법.
  8. 제4항에 있어서, 액체-액체 분리에 의해 수득된 에틸렌 카보네이트를 주로 포함하는 상을 촉매 존재 또는 부재하에 이량체와 반응에 재순환시키는 방법.
  9. 제6항에 있어서, 액체-액체 분리에 의해 수득된 에틸렌 카보네이트를 주로 포함하는 상을 촉매 존재 또는 부재하에 이량체와 반응에 재순환시키는 방법.
  10. 제7항에 있어서, 고체-액체 분리에 의해 수득된, 촉매 존재 또는 부재하의 에틸렌 카보네이트를 주로 포함하는 상을 이량체화 반응에 재순환시키는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940023537A 1993-09-22 1994-09-16 α-메틸스티렌 불포화 이량체의 제조방법 KR950008448A (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP5257502A JPH0789883A (ja) 1993-09-22 1993-09-22 α− メチルスチレン不飽和二量体の製造方法
JP93-257502 1993-09-22
JP93-339829 1993-12-07
JP5339829A JPH07157446A (ja) 1993-12-07 1993-12-07 α− メチルスチレン不飽和二量体の製造方法

Publications (1)

Publication Number Publication Date
KR950008448A true KR950008448A (ko) 1995-04-17

Family

ID=26543233

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940023537A KR950008448A (ko) 1993-09-22 1994-09-16 α-메틸스티렌 불포화 이량체의 제조방법

Country Status (6)

Country Link
US (1) US5481053A (ko)
EP (1) EP0644169B1 (ko)
KR (1) KR950008448A (ko)
CN (1) CN1043880C (ko)
DE (1) DE69401881T2 (ko)
TW (1) TW279843B (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104030881A (zh) * 2014-06-05 2014-09-10 浙江力捷化工科技有限公司 一种非均相连续制备α-甲基苯乙烯线性二聚体的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429719A (en) * 1946-01-18 1947-10-28 Atlantic Refining Co Production of unsaturated dimers of alpha alkyl styrenes
JPS52148053A (en) * 1976-06-01 1977-12-08 Monsanto Co Process for preparing linear dimer of alphaaalkyl styrene
GB2031944B (en) * 1978-09-19 1983-01-06 Nippon Oil Co Ltd Traction fluids for traction drive transmissions
US4199481A (en) * 1979-06-07 1980-04-22 International Flavors & Fragrances Inc. Acetylated alpha methyl styrene dimers or derivatives in perfumes
JPS5780332A (en) * 1980-11-10 1982-05-19 Nippon Oil & Fats Co Ltd Preparation of alpha-methylstyrene dimer

Also Published As

Publication number Publication date
TW279843B (ko) 1996-07-01
DE69401881T2 (de) 1997-07-24
EP0644169A1 (en) 1995-03-22
US5481053A (en) 1996-01-02
DE69401881D1 (de) 1997-04-10
CN1109040A (zh) 1995-09-27
CN1043880C (zh) 1999-06-30
EP0644169B1 (en) 1997-03-05

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