GB344479A - Improvements in or relating to the manufacture of ketones - Google Patents
Improvements in or relating to the manufacture of ketonesInfo
- Publication number
- GB344479A GB344479A GB3647229A GB3647229A GB344479A GB 344479 A GB344479 A GB 344479A GB 3647229 A GB3647229 A GB 3647229A GB 3647229 A GB3647229 A GB 3647229A GB 344479 A GB344479 A GB 344479A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- metallic
- zinc oxide
- vapours
- hydroxides
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
Catalysts for the production of ketones by subjecting the vapours of primary aliphatic alcohols in admixture with water vapour to temperatures of 200-700 DEG C. comprise mixtures of metallic zinc, zinc acetate, zinc oxide and zinc carbonate with one another, or mixtures of one or more of these substances with one or more oxides, hydroxides or salts (e.g. carbonates, borates, silicates) of earth alkali metals such as calcium, barium and magnesium. The catalysts may be supported on non-metallic filling or contact materials, such as pumice or kieselguhr. The apparatus may comprise a tube or other form of apparatus of copper, iron, staybrite or earthenware. In an example a catalyst of zinc acetate or of zinc oxide and calcium silicate in a copper tube is employed for the production of acetone from ethyl alcohol at 475-485 DEG C.ALSO:Aliphatic ketones are manufactured by subjecting vapours of primary aliphatic alcohols containing at least two atoms of carbon in the molecule, in admixture with water vapour to high or relatively high temperatures, particularly temperatures of 200-700 DEG C., in the presence of a catalyst consisting of zinc or a salt or compound thereof, or a mixture of such substances. Advantageously the catalyst may also contain alkali or alkaline-earth oxides, hydroxides or salts, and may be supported on non-metallic filling or contact agents. Catalysts mentioned are metallic zinc, zinc acetate, zinc oxide or zinc carbonate and mixtures with one another or with oxides, hydroxides, carbonates, borates and silicates of calcium, barium and magnesium. The apparatus may be made of copper, iron, staybrite, or earthenware. The vapours may be mixed with oxygen or a gas containing oxygen or with an indifferent gas, and the reaction may be carried out under atmospheric, reduced or elevated pressures. In an example, a mixture of ethyl alcohol vapour, steam and oxygen is passed over a catalyst consisting of zinc acetate, or of zinc oxide and calcium silicate, at 475-485 DEG C., producing acetone, which may be purified by fractional distillation. The preparation of diethylketone, from propyl alcohol is referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3647229A GB344479A (en) | 1929-11-28 | 1929-11-28 | Improvements in or relating to the manufacture of ketones |
| FR701876D FR701876A (en) | 1929-11-28 | 1930-09-11 | Improvements in the manufacture of oxygenated aliphatic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3647229A GB344479A (en) | 1929-11-28 | 1929-11-28 | Improvements in or relating to the manufacture of ketones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB344479A true GB344479A (en) | 1931-03-02 |
Family
ID=10388461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3647229A Expired GB344479A (en) | 1929-11-28 | 1929-11-28 | Improvements in or relating to the manufacture of ketones |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR701876A (en) |
| GB (1) | GB344479A (en) |
-
1929
- 1929-11-28 GB GB3647229A patent/GB344479A/en not_active Expired
-
1930
- 1930-09-11 FR FR701876D patent/FR701876A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR701876A (en) | 1931-03-24 |
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