http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107866255-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-224 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-224 |
| filingDate | 2016-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-01-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-01-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107866255-B |
| titleOfInvention | Catalyst for preparing pyromellitic anhydride |
| abstract | The invention relates toAnd a catalyst for preparing the pyromellitic dianhydride, which mainly solves the problem of low yield of the pyromellitic dianhydride caused by a large amount of byproducts generated during the preparation of the pyromellitic dianhydride in the prior art. The invention adopts oxide catalyst which adopts alpha-Al 2 O 3 The silicon carbide, the ceramic ring or the mixture thereof is used as a carrier, and the active component comprises vanadium element, IVB group element and at least one of IIB group element and alkaline earth metal element, thereby better solving the technical problem, inhibiting the generation of by-products and improving the yield of the pyromellitic dianhydride. |
| priorityDate | 2016-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.