GB344449A - Improvements relating to the production of ketones - Google Patents
Improvements relating to the production of ketonesInfo
- Publication number
- GB344449A GB344449A GB37028/29A GB3702829A GB344449A GB 344449 A GB344449 A GB 344449A GB 37028/29 A GB37028/29 A GB 37028/29A GB 3702829 A GB3702829 A GB 3702829A GB 344449 A GB344449 A GB 344449A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetylene
- acetone
- iron
- acetaldehyde
- steam
- 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
-
- 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
- C07C45/26—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydration of carbon-to-carbon triple bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The exothermic manufacture of acetone by the interaction of acetylene and steam at a raised temperature, is combined with the non-exothermic manufacture of acetone and other aliphatic ketones by the action of steam at a raised temperature on aliphatic alcohols having two or more carbon atoms in the molecule, or on the aldehydes, acids, or aliphatic esters derived therefrom, or on mixtures of these substances with one another or with other derivatives of the alcohols or with inert substances, e.g. methyl alcohol or acetate. The reaction is effected in the presence of catalysts of the kind described in Specification 302,759, [Class 2 (iii), Dyes &c.], i.e. oxygen compounds of heavy metals, particularly of iron, zinc, or nickel, with or without promoters such as aluminium oxide, barium carbonate, lime, or magnesia, or metals, particularly iron; mixed catalysts such as two or more oxides of iron, manganese, uranium, tungsten and molybdenum may also be used, with or without promoters. When the reaction mixture comprises acetylene and ethyl alcohol or its derivatives, such as acetaldehyde, acetic acid, or ethyl acetate, the product is acetone, but mixtures of acetylene with alcohols, aldehydes, &c. having more than two carbon atoms in the molecule, such as n-propanol or butyraldehyde, may yield asymmetric ketones. A suitable initial material is the residual acetylene, containing uncondensed acetaldehyde and a little water and acetic acid, obtained in the production of acetaldehyde from acetylene. The reaction temperature lies between 250 and 750 DEG C., preferably between 400 and 550 DEG C. In an example, acetone is produced by passing a mixture of ethyl alcohol vapour, acetylene, and steam at 470 DEG C. over rusty iron sponge mixed with a little manganese oxide.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE344449X | 1929-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB344449A true GB344449A (en) | 1931-03-03 |
Family
ID=6252047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37028/29A Expired GB344449A (en) | 1929-01-25 | 1929-12-03 | Improvements relating to the production of ketones |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB344449A (en) |
-
1929
- 1929-12-03 GB GB37028/29A patent/GB344449A/en not_active Expired
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