KR970042454A - Method for producing high purity ortho isopropyl phenol - Google Patents
Method for producing high purity ortho isopropyl phenol Download PDFInfo
- Publication number
- KR970042454A KR970042454A KR1019950065551A KR19950065551A KR970042454A KR 970042454 A KR970042454 A KR 970042454A KR 1019950065551 A KR1019950065551 A KR 1019950065551A KR 19950065551 A KR19950065551 A KR 19950065551A KR 970042454 A KR970042454 A KR 970042454A
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- KR
- South Korea
- Prior art keywords
- phenol
- high purity
- ortho
- propylene
- producing high
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
본 발명은 페놀과 프로필렌으로부터 고순도이면서 고수율로 오르토이소프로피페놀(ortho-isopropyl phenol)을 제조하는 방법에 관한 것으로 오르토이소프로필페놀은 농약으로 사용되는 살충제인 메틸이 소프로필페닐카바메이트(일명 MIPC) 및 인계 가소제인 이소프로필페닐 포스페이트(일명 Reofos) 등의 중요한 중간체로서 널리 사용되고 있다. 종래에도 감마-알루미나 촉매 존재 하에서 페놀과 프로필렌을 반응시켜 제조하였으나, 고온, 고압의 반응조건에서 전환율이 저조하고 페놀의 원단위를 증가시키고, 목적 생성물과 비점차가 작은 2,6-디이소프로필페놀, 이소프로필에테르 등의 부산물이 생성되어 선택율이 낮다. 본 발명은 이러한 문제점을 해결하여, 고순도의 오르토이소프로필페놀을 고수율로 제조하였다.The present invention relates to a process for preparing ortho-isopropyl phenol from phenol and propylene in high purity and high yield. And isopropylphenyl phosphate (aka Reofos), which is a phosphorus plasticizer, is widely used as an important intermediate. In the past, phenol and propylene were reacted in the presence of a gamma-alumina catalyst.However, 2,6-diisopropylphenol having a low conversion rate and an increase in the raw unit of phenol under high temperature and high pressure reaction conditions and a small difference in the target product. By-products, such as isopropyl ether, are produced, resulting in low selectivity. The present invention solves this problem, producing a high purity ortho isopropylphenol in high yield.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950065551A KR970042454A (en) | 1995-12-29 | 1995-12-29 | Method for producing high purity ortho isopropyl phenol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950065551A KR970042454A (en) | 1995-12-29 | 1995-12-29 | Method for producing high purity ortho isopropyl phenol |
Publications (1)
Publication Number | Publication Date |
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KR970042454A true KR970042454A (en) | 1997-07-24 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019950065551A KR970042454A (en) | 1995-12-29 | 1995-12-29 | Method for producing high purity ortho isopropyl phenol |
Country Status (1)
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KR (1) | KR970042454A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59130823A (en) * | 1983-01-17 | 1984-07-27 | Maruzen Sekiyu Kagaku Kk | Production of o-alkylphenol |
JPS59155333A (en) * | 1983-02-23 | 1984-09-04 | Maruzen Sekiyu Kagaku Kk | Production of o-alkylphenol |
JPS60258133A (en) * | 1984-06-05 | 1985-12-20 | Mitsubishi Chem Ind Ltd | Preparation of o-alkylphenol |
JPS6212733A (en) * | 1985-07-10 | 1987-01-21 | Honsyu Kagaku Kogyo Kk | O-isopropylation of phenolic compound |
-
1995
- 1995-12-29 KR KR1019950065551A patent/KR970042454A/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59130823A (en) * | 1983-01-17 | 1984-07-27 | Maruzen Sekiyu Kagaku Kk | Production of o-alkylphenol |
JPS59155333A (en) * | 1983-02-23 | 1984-09-04 | Maruzen Sekiyu Kagaku Kk | Production of o-alkylphenol |
JPS60258133A (en) * | 1984-06-05 | 1985-12-20 | Mitsubishi Chem Ind Ltd | Preparation of o-alkylphenol |
JPS6212733A (en) * | 1985-07-10 | 1987-01-21 | Honsyu Kagaku Kogyo Kk | O-isopropylation of phenolic compound |
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