KR100942650B1 - 5-오르토-톨릴펜텐의 제조방법 - Google Patents
5-오르토-톨릴펜텐의 제조방법 Download PDFInfo
- Publication number
- KR100942650B1 KR100942650B1 KR1020070094561A KR20070094561A KR100942650B1 KR 100942650 B1 KR100942650 B1 KR 100942650B1 KR 1020070094561 A KR1020070094561 A KR 1020070094561A KR 20070094561 A KR20070094561 A KR 20070094561A KR 100942650 B1 KR100942650 B1 KR 100942650B1
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- South Korea
- Prior art keywords
- ortho
- alkali metal
- metal catalyst
- xylene
- tolylpentene
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
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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
- C07C15/42—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals monocyclic
- C07C15/44—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals monocyclic the hydrocarbon substituent containing a carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
- C07C5/31—Rearrangement of carbon atoms in the hydrocarbon skeleton changing the number of rings
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- 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
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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
Description
Reaction Time(min) | Dual-Sonication | Single-Sonication | |||||
실시예1(1,2차) 400rpm | 비교예1(1차) 400rpm | 비교예2(2차) 400rpm | |||||
1차 | 2차 | 100ppm NaK (6.9:1) | 100ppm NaK (6.9:1) | 100ppm NaK (6.9:1) | |||
전환율 | 선택도 | 전환율 | 선택도 | 전환율 | 선택도 | ||
60 | 30 | 16.4 | 94.5 | 13.2 | 95.0 | 9.2 | 88.9 |
120 | 30 | 18.5 | 92.9 | 14.0 | 94.7 | 10.3 | 90.5 |
60 | 60 | 17.8 | 93.5 | 13.5 | 94.4 | 11.6 | 92.1 |
120 | 60 | 19.5 | 92.3 | 14.3 | 93.9 | 12.0 | 91.9 |
Reaction Time(min) | Dual-Sonication | ||||
실시예1(1,2차) 400rpm 10.5W/g NaK | 비교예3(1,2차) 400rpm 1.5W/g NaK | ||||
1차 | 2차 | 100ppm NaK (6.9:1) | 100ppm NaK (6.9:1) | ||
전환율 | 선택도 | 전환율 | 선택도 | ||
60 | 30 | 16.4 | 94.5 | 12.8 | 92.5 |
120 | 30 | 18.5 | 92.9 | 14.5 | 92.0 |
60 | 60 | 17.8 | 93.5 | 13.8 | 92.1 |
120 | 60 | 19.5 | 92.3 | 15.2 | 91.5 |
Reaction Time(min) | Dual-Sonication | ||||||
실시예1(1,2차) 400rpm | 실시예2(1,2차) 900rpm | 비교예4(1,2차) 100rpm | |||||
1차 | 2차 | 100ppm NaK (6.9:1) | 100ppm NaK (6.9:1) | 100ppm NaK (6.9:1) | |||
전환율 | 선택도 | 전환율 | 선택도 | 전환율 | 선택도 | ||
60 | 30 | 16.4 | 94.5 | 16.8 | 93.8 | 9.8 | 88.5 |
120 | 30 | 18.5 | 92.9 | 19.1 | 93.0 | 10.6 | 91.0 |
60 | 60 | 17.8 | 93.5 | 18.1 | 93.6 | 11.0 | 93.4 |
120 | 60 | 19.5 | 92.3 | 20.0 | 92.3 | 13.2 | 93.6 |
Claims (10)
- 삭제
- 삭제
- 삭제
- 오르토-크실렌과 1,3-부타디엔을 알칼리금속 촉매 하에 반응시켜 5-오르토-톨릴펜텐을 제조하는 방법에 있어서,1) 알칼리금속 촉매를 알칼리금속 촉매 중량 g당 10W 내지 1500W의 초음파출력으로, 알칼리금속 촉매 50g 내지 200g과 탈수된 오르토-크실렌 45L 당 0.5~12시간 동안 제 1 초음파 처리하는 단계;2) 상기 제 1 초음파 처리한 알칼리금속 촉매를 알칼리금속 촉매 중량 g당 0.1W 내지 9.5W의 초음파출력으로, 오르토-크실렌 함량 대비 알칼리금속 촉매 비율 10ppm 내지 500ppm 당 10분~6시간 동안 제 2 초음파 처리하는 단계; 및3) 상기 초음파 처리된 알칼리금속 촉매 하에 오르토-크실렌과 1,3-부타디엔을 알케닐화 반응시키는 단계를 포함하는, 5-오르토-톨릴펜텐의 제조방법.
- 삭제
- 삭제
- 삭제
- 삭제
- 제 4항에 있어서, 상기 알칼리금속 촉매는 Na와 K의 혼합물인 것을 특징으로 하는 5-오르토-톨릴펜텐의 제조방법.
- 삭제
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KR1020070094561A KR100942650B1 (ko) | 2007-09-18 | 2007-09-18 | 5-오르토-톨릴펜텐의 제조방법 |
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KR1020070094561A KR100942650B1 (ko) | 2007-09-18 | 2007-09-18 | 5-오르토-톨릴펜텐의 제조방법 |
Publications (2)
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KR20090029375A KR20090029375A (ko) | 2009-03-23 |
KR100942650B1 true KR100942650B1 (ko) | 2010-02-17 |
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EP3075725A1 (en) * | 2015-03-30 | 2016-10-05 | Casale SA | Sonication in a urea or melamine synthesis process |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5198594A (en) * | 1991-11-27 | 1993-03-30 | Amoco Corporation | Alkylation of alkylaromatics promoted by sonicated alkali metal |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5198594A (en) * | 1991-11-27 | 1993-03-30 | Amoco Corporation | Alkylation of alkylaromatics promoted by sonicated alkali metal |
Non-Patent Citations (2)
Title |
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Ultrasonics Sonochem. 2006 |
화학공학 2002 |
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