http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5939844-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cfc033f059d282fcd915bc8be2ae53f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-127 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1982-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b80dece6b357abded4e9a02f59ed00ae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7791c11e67bb4221e54e5e43deac8c56 |
| publicationDate | 1984-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5939844-A |
| titleOfInvention | Preparation of glyoxal |
| abstract | PURPOSE: To prepare glyoxal in high yield, by contacting ethylene glycol with fine silver powder having a specific particle diameter in the presence of a specific amount of phosphorus or a phosphorus compound, thereby effecting the vapor-phase oxidation reaction of ethylene glycol. n CONSTITUTION: Glyoxal is prepared by the vapor-phase oxidation of ethylene glycol. In the above process, a gas containing ethylene glycol and molecular oxygen is brought into contact with a silver catalyst having a particle diameter of ≤1×10 -3 mm at a high temperature of about 450W650°C in the presence of phosphorus or a phosphorus compound (preferably methyl phosphite, ethyl phosphite, methyl phosphate, ethyl phosphate, etc.). n EFFECT: The reaction stability can be improved, and the amount of unreacted ethylene glycol and the production of glycol aldehyde (a reaction intermediate) can be remarkably suppressed. n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1982-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.