GB687745A - Improvements in or relating to the production of aldehydes and ketones - Google Patents
Improvements in or relating to the production of aldehydes and ketonesInfo
- Publication number
- GB687745A GB687745A GB26748/50A GB2674850A GB687745A GB 687745 A GB687745 A GB 687745A GB 26748/50 A GB26748/50 A GB 26748/50A GB 2674850 A GB2674850 A GB 2674850A GB 687745 A GB687745 A GB 687745A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohol
- converted
- cyclohexanol
- ethyl
- aldehydes
- 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
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/002—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by dehydrogenation
Abstract
Aldehydes or ketones are produced by the dehydrogenation of primary or secondary alcohols by passing the vapour of a saturated primary or secondary alcohol over a dehydrogenation catalyst at a temperature of from 200 DEG to 300 DEG C. and at a pressure below 300 mm. Hg. Suitable alcohols to use as starting materials are, for example, ethyl alcohol, butyl alcohol, 2-ethylhexyl alcohol, isopropyl alcohol, secondary butyl alcohol, methyl isobutyl carbinol, cyclohexanol, methyl cyclohexanol, phenyl-ethyl alcohol and guaniol. Any dehydrogenation catalyst may be used. The preferred catalyst is reduced copper deposited on a carrier, preferably kieselguhr, in association with another metal or a metallic oxide if desired. In the examples (a) ethyl alcohol is converted into acetaldehyde with some acetic acid and ethyl acetate as by-products; (b) isopropyl alcohol is converted into acetone; (c) ethylhexyl alcohol is converted into ethylhexaldehyde; and (d) cyclohexanol is converted into cyclohexanone. Specifications 636,743 and 636,800 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1012622T | 1949-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB687745A true GB687745A (en) | 1953-02-18 |
Family
ID=9571010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26748/50A Expired GB687745A (en) | 1949-12-29 | 1950-11-02 | Improvements in or relating to the production of aldehydes and ketones |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE500224A (en) |
| CH (1) | CH289376A (en) |
| FR (1) | FR1012622A (en) |
| GB (1) | GB687745A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1016695B (en) * | 1954-02-26 | 1957-10-03 | Knapsack Ag | Process for the dehydrogenation of secondary alcohols to ketones |
| DE1097969B (en) * | 1954-03-26 | 1961-01-26 | Knapsack Ag | Process for the preparation of aldehydes by the dehydrogenation of primary aliphatic alcohols |
| DE1026739B (en) * | 1955-02-08 | 1958-03-27 | Knapsack Ag | Process for the dehydrogenation of low molecular weight, aliphatic, secondary alcohols to the corresponding ketones |
| US3028431A (en) * | 1957-05-13 | 1962-04-03 | Glidden Co | Process for preparing organoleptic materials |
-
0
- BE BE500224D patent/BE500224A/xx unknown
-
1949
- 1949-12-29 FR FR1012622D patent/FR1012622A/en not_active Expired
-
1950
- 1950-11-02 GB GB26748/50A patent/GB687745A/en not_active Expired
- 1950-12-04 CH CH289376D patent/CH289376A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE500224A (en) | |
| CH289376A (en) | 1953-03-15 |
| FR1012622A (en) | 1952-07-15 |
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