| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c94e4b441cd749fb9bfc65d227df8905
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2b052ad916169ce72ada6048f2934c74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3922b1fd58779b3ed9ee50abe47bc2e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1b55cb2104919396a899bb60b8c04927 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0201 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-50 |
| filingDate |
2011-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91b27289ad2e17a2c924f88118cb830a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be5e4e48fd3712fbde89bfd649e6a9e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0751396ff3fecda052a0d70ed20e1f4 |
| publicationDate |
2012-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2012041217-A1 |
| titleOfInvention |
Two-stage calcination for catalyst production |
| abstract |
The invention relates to an improved process for producing a catalyst useful for the epoxidation of ethylene to ethylene oxide. In forming the catalyst, a silver-impregnated support is subjected to two calcinations. The support is subjected to a first calcination in a first atmosphere comprising air. Next the support is subjected to a second calcination in a second atmosphere which is substantially entirely comprised of inert gas, and which second atmosphere is substantially absent of hydrogen. This two-stage calcination produces an improved catalyst which contains fewer organics left over under standard conditions of air calcination alone, while costing less than calcination in an inert gas alone. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019023158-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021191414-A1 |
| priorityDate |
2006-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |