http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-778493-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0afd97e09d1a530da9b266aa35f9166a http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cb6f3057169f522f2cc621c564f78cfa |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-353 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-353 |
| filingDate | 1956-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ae91aede7bd5e185bc4befaed36db9d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e4d13b9370ba825652ee2d82371cefb |
| publicationDate | 1957-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-778493-A |
| titleOfInvention | Production of acrylic acid |
| abstract | Acrylic acid is produced by subjecting succinic anhydride vapour, either alone or together with an inert gas, to pyrolysis at 500-800 DEG C., preferably 650-750 DEG C. The reaction may take place in the presence of a catalyst such as iron filings, but generally no catalyst is required. It is preferred to employ a temperature of 700 DEG C. and a contact time of 1 to 2 seconds. In an example, succinic anhydride is pumped from a heated storage vessel to an evaporator and the vapour is mixed with an inert gas and passed through a vertical glass tube surrounded by a steel tube and heating element. Results show the conversion to acrylic acid at temperatures from 500-750 DEG C. and different contact times. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-1195297-B |
| priorityDate | 1956-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.