http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-388402-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-26 |
| filingDate | 1931-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1933-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-388402-A |
| titleOfInvention | Improvements in the manufacture of methyl vinyl ketone |
| abstract | Methylvinyl ketone is prepared by reacting monovinylacetylene and water in the presence of a hydration catalyst. The preferred catalysts are the oxides, hydroxides and salts of mercury, copper, silver, cadmium and zinc; specified salts are mercuric sulphate, acetate, fluoborate, chloride, and arsenate, silver sulphate and phosphate, cadmium sulphate and zinc chloride. The catalyst is preferably used in association with an acid other than a hydrohalogen acid; acids specified as suitable are sulphuric, acetic, sulphoacetic, phosphoric, arsenic, arsenous, formic, and mono-, di- and tri-chloracetic acids. In the examples, (1) vinyl-acetylene is shaken in a sealed container with dilute sulphuric acid and mercury sulphate, and the reaction product is neutralized and distilled; methylvinyl ketone is salted out from the distillate; (2) vinylacetylene is bubbled through a solution of mercuric oxide in dilute sulphuric acid at 10-30 DEG C., and the product worked up as described above; (3) the reaction of example 2 is effected at 60-80 DEG C., and the vapours from the reaction vessel are led through a condenser, from which an aqueous solution of methylvinyl ketone is withdrawn, while unreacted vinylacetylene is returned to the reaction vessel together with fresh vinylacetylene and water. Specification 384,654 is referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4434133-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3086052-A |
| priorityDate | 1930-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.