GB1381149A - Manufacture of cyclohexanol from cyclohexene - Google Patents
Manufacture of cyclohexanol from cyclohexeneInfo
- Publication number
- GB1381149A GB1381149A GB2308372A GB2308372A GB1381149A GB 1381149 A GB1381149 A GB 1381149A GB 2308372 A GB2308372 A GB 2308372A GB 2308372 A GB2308372 A GB 2308372A GB 1381149 A GB1381149 A GB 1381149A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyclohexene
- cyclohexanol
- column
- sulphuric acid
- reactor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/03—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2
- C07C29/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
- C07C29/05—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds with formation of absorption products in mineral acids and their hydrolysis
- C07C29/06—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds with formation of absorption products in mineral acids and their hydrolysis the acid being sulfuric acid
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1381149 Preparation of cyclohexanol BADISCHE ANILIN- & SODA-FABRIK AG 17 May 1972 [18 May 1971] 23083/72 Heading C2C Cyclohexanol is produced in a continuous process from cyclohexene in two stages involving the addition of sulphuric acid in hydration in which the addition of sulphuric acid is carried out in the presence of ferrous sulphate. As illustrated in the flow diagram cyclohexene is passed through line 6 to the reactor 1, where it is caused to boil and the temperature is maintained at 82‹ C. by vapour cooling while a 60% sulphuric acid solution, heated at 110‹ C., is fed to the reactor through line 7 and thus added to the boiling cyclohexene. The sulphuric acid leaving the reactor is diluted with water to a concentration of 30% in a mixing line 8 and passes to a saponifying and stripping column 2 operating at atmospheric temperature and a temperature of 110‹ C. The concentrated sulphuric acid (60%) which collects at the base of this column is recycled to the absorption reactor 1 through line 9. The overheads leaving column 2 pass to a separator 3 operating at 20‹ C. and in which an aqueous phase containing 3% of cyclohexanol, which is used for the hydrolysis of the alkyl sulphate, and an organic phase comprising cyclohexene, cyclohexanol and traces of water are obtained, which is fed to a column 4 for the removal of cyclohexene and traces of water, residual water being removed by adding cyclohexene at the top of the column and in a second column 5, cyclohexanol is removed from the residue.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712124590 DE2124590C3 (en) | 1971-05-18 | Process for the continuous production of cyclohexanol from cyclohexene |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1381149A true GB1381149A (en) | 1975-01-22 |
Family
ID=5808219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2308372A Expired GB1381149A (en) | 1971-05-18 | 1972-05-17 | Manufacture of cyclohexanol from cyclohexene |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE783581A (en) |
FR (1) | FR2138128B1 (en) |
GB (1) | GB1381149A (en) |
NL (1) | NL7206342A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0087924A2 (en) * | 1982-03-01 | 1983-09-07 | The British Petroleum Company p.l.c. | Process for the catalytic oxidation of a paraffinic hydrocarbon to an alcohol and either an aldehyde or a ketone |
US6245907B1 (en) | 1997-12-08 | 2001-06-12 | Hyosung Corporation | Process for producing a high purity caprolactam |
-
1972
- 1972-05-10 NL NL7206342A patent/NL7206342A/xx not_active Application Discontinuation
- 1972-05-17 GB GB2308372A patent/GB1381149A/en not_active Expired
- 1972-05-17 BE BE783581A patent/BE783581A/en unknown
- 1972-05-18 FR FR7217934A patent/FR2138128B1/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0087924A2 (en) * | 1982-03-01 | 1983-09-07 | The British Petroleum Company p.l.c. | Process for the catalytic oxidation of a paraffinic hydrocarbon to an alcohol and either an aldehyde or a ketone |
EP0087924A3 (en) * | 1982-03-01 | 1984-03-28 | The British Petroleum Company p.l.c. | Process for the catalytic oxidation of a paraffinic hydrocarbon to an alcohol and either an aldehyde or a ketone |
US6245907B1 (en) | 1997-12-08 | 2001-06-12 | Hyosung Corporation | Process for producing a high purity caprolactam |
Also Published As
Publication number | Publication date |
---|---|
NL7206342A (en) | 1972-11-21 |
DE2124590A1 (en) | 1972-11-30 |
BE783581A (en) | 1972-11-17 |
FR2138128B1 (en) | 1975-08-08 |
FR2138128A1 (en) | 1972-12-29 |
DE2124590B2 (en) | 1975-06-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |