| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a22da5b7dd6ed60a21538e5edb23e051 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-215
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-198
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-215
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-198
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 |
| filingDate |
1980-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1981-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-2055604-A |
| titleOfInvention |
Process for preparing phosphorus- vanadium-oxygen catalysts and the catalysts prepared by the process |
| abstract |
Phosphorus-vanadium-oxygen catalysts, highly resistant to attrition and dusting, are prepared by spheroidizing phosphorus-vanadium-oxygen catalyst precursors containing tetravalent vanadium into spheroids prior to being subjected to calcination conditions. The resulting catalysts, after calcination, exhibit a percent attrition less than 2% by weight. The catalysts are useful for the conversion of non-aromatic hydrocarbons, particularly n-butane to maleic. |
| priorityDate |
1979-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |