http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-820532-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2fa8f8941ecc2d9521285617dbb93322 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C33-025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C33-025 |
| filingDate | 1957-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37a34e8093bdfae4e3326ff5dad643f7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_22931af633048e4f32ec375f33ef0d90 |
| publicationDate | 1959-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-820532-A |
| titleOfInvention | Process of producing crotyl alcohol |
| abstract | Crotyl alcohol is produced by heating 1-chlorbutene-2 and/or 3-chlorbutene-1 with water and at least two molar proportions of methyl vinyl carbinol per molar proportion of chlorbutene. Preferably the mixture is heated to a temperature in the range 30-80 DEG C. The process is conveniently carried out by stirring the chlorbutene and methyl vinyl carbinol with water at elevated temperature and distilling the resulting mixture to separate the crotyl alcohol and methyl vinyl carbinol, in the form of their azeotropes with water from the hydrochloric acid produced. The two water azeotropes may then be separated by a further distillation. The crotyl alcohol may then be dried. Preferably the separated methyl vinyl carbinol/water azeotrope is returned to the reactor. Some methyl vinyl carbinol may be formed during the reaction but if it is recycled the concentration of methyl vinyl carbinol in the reaction mixture gradually increases until a concentration is reached which inhibits further formation of methyl vinyl carbinol. Preferably the hydrolysis is begun with the excess of methyl vinyl carbinol already present but since in the absence of such an excess a considerable proportion of methyl vinyl carbinol is formed, the starting mixture may be obtained by heating chlorbutene with water with no methyl vinyl carbinol present; the resulting methyl vinyl carbinol may be separated from the hydrolysis product and recycled to the reactor, the recycling being carried out until the concentration of methyl vinyl carbinol has reached the necessary level. In an example, one molecular proportion of crotyl chloride is heated with two molecular proportions of methyl vinyl carbinol and water to give crotyl alcohol with a small quantity of methyl vinyl carbinol. |
| priorityDate | 1957-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.