BE849025A - Procede de preparation du m- et/ou du p-cresol par desalkylation de mono- et/ou di-tert-alkyl-m et/ou p-cresols - Google Patents
Procede de preparation du m- et/ou du p-cresol par desalkylation de mono- et/ou di-tert-alkyl-m et/ou p-cresolsInfo
- Publication number
- BE849025A BE849025A BE2055506A BE2055506A BE849025A BE 849025 A BE849025 A BE 849025A BE 2055506 A BE2055506 A BE 2055506A BE 2055506 A BE2055506 A BE 2055506A BE 849025 A BE849025 A BE 849025A
- Authority
- BE
- Belgium
- Prior art keywords
- desalkylation
- cresols
- cresol
- tert
- mono
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2554702A DE2554702C3 (de) | 1975-12-05 | 1975-12-05 | Verfahren zur Herstellung von m- und/oder p-Kresol durch katalytische Entalkylierung von tert.-alkyl-substituierten Phenolen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE849025A true BE849025A (fr) | 1977-06-03 |
Family
ID=5963527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE2055506A BE849025A (fr) | 1975-12-05 | 1976-12-03 | Procede de preparation du m- et/ou du p-cresol par desalkylation de mono- et/ou di-tert-alkyl-m et/ou p-cresols |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4150243A (it) |
| JP (1) | JPS5819650B2 (it) |
| BE (1) | BE849025A (it) |
| DE (1) | DE2554702C3 (it) |
| FR (1) | FR2333766A1 (it) |
| GB (1) | GB1499288A (it) |
| IT (1) | IT1066787B (it) |
| NL (1) | NL183940C (it) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487978A (en) * | 1983-07-15 | 1984-12-11 | Ici Americas Inc. | High yield process for preparing 4,4'-biphenol and tert-alkylated-alkylbenzenes |
| EP0131897B1 (en) * | 1983-07-15 | 1986-11-26 | Ici Americas Inc. | High yield process for preparing 3,3',5,5'-tetraalkyl-4,4'-biphenol |
| JP2524594B2 (ja) * | 1987-06-02 | 1996-08-14 | 三菱化学株式会社 | 高純度４，４′−ビフエノ−ル類の製造方法 |
| US4888446A (en) * | 1988-04-11 | 1989-12-19 | Texaco Chemical Co. | Preparation of polyoxyalkylene glycol amines |
| JP7104695B2 (ja) | 2017-06-08 | 2022-07-21 | クラレクラフレックス株式会社 | 繊維構造体、成形体及び吸音材 |
| WO2020162876A1 (en) | 2019-02-04 | 2020-08-13 | China Petroleum & Chemical Corporation | Dealkylation and transalkylation of mixed phenols to make cresols |
| CN115745749A (zh) * | 2022-11-23 | 2023-03-07 | 江苏迈达新材料股份有限公司 | 一种重烷基酚的回收再利用方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2290603A (en) * | 1939-12-27 | 1942-07-21 | Gulf Research Development Co | Recovery of phenols and olefins |
| US2297588A (en) * | 1942-03-07 | 1942-09-29 | Gulf Research Development Co | Separation of phenols and alkylated products thereof |
| US2366497A (en) * | 1943-02-08 | 1945-01-02 | Standard Oil Dev Co | Dealkylation of alkylated phenols |
| US2497971A (en) * | 1944-06-19 | 1950-02-21 | Ici Ltd | Separation of phenols |
| FR1035779A (fr) * | 1950-04-11 | 1953-08-31 | Ici Ltd | Production de phénols |
| FR1346865A (fr) * | 1963-02-12 | 1963-12-20 | Ruetgerswerke Ag | Procédé pour transalcoyler des butyl tert. polyphénols |
| US3465048A (en) * | 1966-03-08 | 1969-09-02 | Sumitomo Chemical Co | Method for preparing 2,6-xylenol |
| NL6801850A (it) * | 1967-02-15 | 1968-08-16 | ||
| IL33439A (en) * | 1968-12-04 | 1973-01-30 | Hodogaya Chemical Co Ltd | Process for recovering m-alkylphenol from a mixture of alkylphenols |
| GB1370325A (en) * | 1971-04-02 | 1974-10-16 | Coalite Chemical Products Ltd | Separation of mixtures of phenols |
| JPS5145547B2 (it) * | 1973-06-08 | 1976-12-04 |
-
1975
- 1975-12-05 DE DE2554702A patent/DE2554702C3/de not_active Expired
-
1976
- 1976-11-22 US US05/744,211 patent/US4150243A/en not_active Expired - Lifetime
- 1976-12-02 GB GB50302/76A patent/GB1499288A/en not_active Expired
- 1976-12-02 NL NLAANVRAGE7613449,A patent/NL183940C/xx not_active IP Right Cessation
- 1976-12-03 JP JP51144839A patent/JPS5819650B2/ja not_active Expired
- 1976-12-03 FR FR7636609A patent/FR2333766A1/fr active Granted
- 1976-12-03 IT IT52456/76A patent/IT1066787B/it active
- 1976-12-03 BE BE2055506A patent/BE849025A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL7613449A (nl) | 1977-06-07 |
| JPS5819650B2 (ja) | 1983-04-19 |
| US4150243A (en) | 1979-04-17 |
| DE2554702C3 (de) | 1980-09-11 |
| GB1499288A (en) | 1978-01-25 |
| IT1066787B (it) | 1985-03-12 |
| NL183940C (nl) | 1989-03-01 |
| DE2554702B2 (de) | 1980-01-10 |
| NL183940B (nl) | 1988-10-03 |
| DE2554702A1 (de) | 1977-06-08 |
| FR2333766A1 (fr) | 1977-07-01 |
| FR2333766B1 (it) | 1983-02-04 |
| JPS5271422A (en) | 1977-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: BAYER A.G. Effective date: 19901231 |