| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-48 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-48 |
| filingDate |
1988-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce03369f6163c26553e1b414bf49b7ff |
| publicationDate |
1989-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0318815-A1 |
| titleOfInvention |
Process for preparing silver-based catalyst and process for epoxidising higher olefins |
| abstract |
This invention relates to a process of oxidizing an olefin having at least three carbon atoms directly to the corresponding epoxide comprising contacting the olefin with oxygen in the presence of a catalyst comprising a mixed silver-promoter metal (+2 or +3) silicate. In the direct oxidation of propylene the process yields a high selectivity to propylene oxide. This invention also relates to a catalyst and the process for preparing said catalyst. The process comprises contacting in an aqueous solution the dissolved salts (a) a silver-containing salt; (b) at least one salt containing a multivalent cation promoter; and (c) a silicon-containing salt, wherein the mole ratio of silicon to combined silver and promoter metals is at least 0.5, under conditions sufficient to form a mixed silver-promoter silicate precipitate. n Compared to existing catalysts, the catalysts of the present invention have a higher selectivity for olefin oxides and a higher level of activity. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7585987-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1086743-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8309771-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0640598-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0369902-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0480539-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9005726-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5525741-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9728142-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6600056-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5573989-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0480538-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1101388-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1462446-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7319156-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9734693-A1 |
| priorityDate |
1987-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |