http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107866228-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-8472 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-847 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 |
| 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-107866228-B |
| titleOfInvention | Catalyst for synthesizing homoanhydride |
| abstract | The invention relates to a catalyst for synthesizing pyromellitic dianhydride, which mainly solves the problem of low yield of pyromellitic dianhydride caused by a large number of side reactions and a large number of byproducts generated in the synthesis process of 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, iron series element and at least one of VA group element and alkaline earth metal element, so that the technical problem is better solved, the side reaction during the synthesis of the pyromellitic dianhydride is reduced, and the yield of the pyromellitic dianhydride is improved. |
| 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: 71.