| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-485
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-96 |
| filingDate |
1977-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1981-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51176a5aba571b302504b38c7c6fbb2b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62808fef840b73469eafa88b61a4a66d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c412aa23e5a989fb053872803e233053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_842d76665f24f6f82d433ab7d6413d80 |
| publicationDate |
1981-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1103651-A |
| titleOfInvention |
Process for improving the activity of used supported silver catalysts |
| abstract |
PROCESS FOR IMPROVING THE ACTIVITY OF USED SUPPORTED SILVER CATALYSTS Abstract of the disclosure: The activity of supported silver catalysts used up in the direct oxidation of ethylene with molecular oxygen or air is improved by impregnating the catalyst arranged in a fixed bed with a solution of a caesium and/or rubidium compound in an inert organic solvent, optionally together with up to 40 % by weight of water, calculated on the total liquid, as dissolving intermediary, so as to produce a concentration gra-dient of from 0.3 to 20 parts of caesium and/or rubidium per 1 million parts of catalyst and per meter of fixed bed, counter to the direction of flow of the gass to be reacted. In this manner the activity of the catalyst is considerably improved which results in an increased selectivity of the oxidation of ethylene to ethylene oxide. |
| priorityDate |
1976-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |