| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e553651f1e0d23e577550d5e2b0623e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1076
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1038 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0203
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-086
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-10 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-04 |
| filingDate |
1994-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_135652d4f8e5f04ff24d1f0c26fc0e92 |
| publicationDate |
1996-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9604074-A1 |
| titleOfInvention |
Process for preparing silver catalyst |
| abstract |
An improved silver catalyst for the oxidation of ethylene with molecular oxygen is made by impregnating a porous support with a silver salt of an acid; subjecting the impregnated support to a multi-stage activation in an atmosphere containing less oxygen than air by heating at a first temperature in the range of 150 to 200 °C for less than an hour, heating at a second temperature in the range of from greater than 200 °C to 300 °C for less than one hour, heating at a third temperature in the range of from greater than 300 °C to 400 °C for less than one hour and finally heating at a fourth temperature in the range of from greater than 400 °C to 500 °C; and post impregnating the support with an alkali metal, preferably cesium, from an anhydrous alcohol solution followed by washing with alcohol solvent and rapid drying to produce a finished catalyst having from 1-6 x 10-3 gew of the alkali metal per kg of catalyst. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2297278-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2433902-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7750170-B2 |
| priorityDate |
1993-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |