GB330511A - - Google Patents
Info
- Publication number
- GB330511A GB330511A GB330511DA GB330511A GB 330511 A GB330511 A GB 330511A GB 330511D A GB330511D A GB 330511DA GB 330511 A GB330511 A GB 330511A
- Authority
- GB
- United Kingdom
- Prior art keywords
- halogen
- alpha
- acetaldehyde
- acid
- vapour
- 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.)
- Active
Links
Abstract
330,511. Ellis, G. B., (Soc, des Usines Chimiques Rh¶ne-Poulenc). March 1, 1929. Divided on 329,721. Acyl halides; acetaldehyde; halogen acetaldehyde; halogen. and dihalogen-ethyl esters.-Acyl halides and acetaldehyde or halogen acetaldehyde are produced by dissociating alpha-halogen- or alpha-#- dihalogen-ethyl esters by passing their vapour through heated tubes which may contain catalysts. The catalysts mentioned are pumice, refractory earths, Kieselguhr, activated charcoal, and silica gel, which may carry acid activating agents such as mineral acids such as sulphuric or phosphoric acid, acid salts such as bisulphates and acid phosphates, zinc or cadmium halides, or the acid catalysts mentioned in Specification 329,721. Increased or diminished pressure may be employed. The halogen esters may be the crude product of the action of halogen acids or halogens or vinyl esters. In the examples (1) alpha-chlorethyl acetate vapour is passed over pumice at 250-300‹ C., the condensate being acetyl chloride, acetaldehyde, and unchanged ester; (2) alpha-#-dichlorethyl acetate vapour is passed over pumice at 250‹ C.; (3) alpha-chlorethyl acetate vapour is passed through a tube heated to 360-380‹ C. Specification 325,115 also is referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB330511A true GB330511A (en) |
Family
ID=1743291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB330511D Active GB330511A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB330511A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2816141A (en) * | 1955-07-01 | 1957-12-10 | Du Pont | Process for oxalyl chloride production |
| US2816140A (en) * | 1955-07-01 | 1957-12-10 | Du Pont | Process for the production of oxalyl chloride |
-
0
- GB GB330511D patent/GB330511A/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2816141A (en) * | 1955-07-01 | 1957-12-10 | Du Pont | Process for oxalyl chloride production |
| US2816140A (en) * | 1955-07-01 | 1957-12-10 | Du Pont | Process for the production of oxalyl chloride |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2299862A (en) | Preparation of vinyl esters | |
| US2351366A (en) | Process of preparing acetoacetic esters | |
| KR850008482A (en) | Improved Process of Methanol Carbonylation | |
| US4423270A (en) | Process for catalytic dehydration of ethanol vapor to ethylene | |
| US4173562A (en) | Process for the preparation of α-L-aspartyl-L-phenylalanine methyl ester | |
| US1433308A (en) | Process of obtaining complete alcoholysis | |
| Kharasch et al. | REACTIONS OF ATOMS AND FREE RADICALS IN SOLUTION. XXVI. COMPARISON OF THE REACTIONS OF LEAD TETRAACETATE AND ACETYL PEROXIDE WITH ACETIC ACID AND ISOPROPYL ETHER1 | |
| US2609388A (en) | Preparation of lower fatty acid esters of geraniol, nerol, and linalool | |
| GB330511A (en) | ||
| US3078302A (en) | Production of dialkyl fumarates | |
| US2423681A (en) | Use of magnesia catalysts in the production of butadiene | |
| US2436532A (en) | Production of 4-keto pimelic acid | |
| US2173124A (en) | Manufacture of organic esters of higher alcohols and lower aliphatic acids | |
| US2175811A (en) | Manufacture of ketenes | |
| US2441540A (en) | Production of allyl alcohol | |
| US4011244A (en) | Process for preparing tetrahydrofuran | |
| US3639472A (en) | Process for the hydrolytic splitting of carboxylic acid vinyl esters into acetaldehyde and carboxylic acid | |
| Kosolapoff | Synthesis of amino-substituted phosphonic acids. II. α-Aminobenzylphosphonic acid | |
| US2405967A (en) | Preparation of acids and esters thereof | |
| US4296243A (en) | Process for producing sorbic acid or its derivatives | |
| US2619493A (en) | Monoglycerides | |
| US2398103A (en) | Pyrolysis of esters of 1-alken-4-ols to produce diolefins | |
| GB1272514A (en) | Process for the esterification of tertiary aliphatic alcohols | |
| Glattfeld et al. | The reduction of dl-erythronic lactone to dl-erythrose | |
| US2769835A (en) | Process of producing alkyl acrylates by dehydrohalogenation using an anhydrous calcium sulfate catalyst |