http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-873875-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e95dc47b91eed2e59a22adbc58b3c6e2 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2521-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S585-906 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2527-167 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-247 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-247 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-16 |
| filingDate | 1959-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32f76482dcf6cbbfb5fa492c9f0c26ec |
| publicationDate | 1961-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-873875-A |
| titleOfInvention | Production of conjugated diolefines |
| abstract | Conjugated diolefines together with aldehydes and small amounts of mono-olefines are produced by contacting a 1,3-dioxane with a phosphate of a Group IIIB element as catalyst at elevated temperatures. 4,4-Dimethyl-1,3-dioxane produces isoprene and formaldehyde with small amounts of isobutene which with the formaldehyde may be used to produce more of the dioxane. Suitable conditions are 200-450 DEG C. and 0.1-100 liquid volumes of dioxane per volume of catalyst per hour, preferably mixed with steam, nitrogen or butane. The phosphate may be used alone or in amounts of 5-25% on a support such as silica which may contain combined sodium. Boron phosphate is preferred; the use of aluminium phosphate on silica and of mixed boron and aluminium phosphate is also exemplified.ALSO:A catalyst for the conversion of 1,3-dioxanes to conjugated diolefins comprises phosphates of a Group IIIB element supported, for example, on silica gel. The support preferably contains combined sodium and the catalyst may contain 5-25% by weight of boron and/or aluminium phosphate. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3236907-A |
| priorityDate | 1959-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.