http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108298552-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B39-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B39-04 |
| filingDate | 2018-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108298552-B |
| titleOfInvention | Synthesis method of large-particle-size Beta molecular sieve |
| abstract | The invention discloses a synthesis method of a large-particle-size Beta molecular sieve, which comprises the steps of dissolving a template agent R, inorganic alkali, a silicon source, an aluminum source and water together, adding one or more of promoters dimethyl carbonate, diethyl carbonate and ethyl methyl carbonate to react to obtain gel, pre-crystallizing the gel under a negative pressure condition to obtain a pre-crystallized sample, and crystallizing, roasting, ammonium exchanging and separating the sample to obtain the large-particle-size Beta molecular sieve. The method can synthesize the Beta molecular sieve with large particle size and high specific surface area and crystallinity, has the characteristic of high hydrothermal stability, and has wide application prospect in the fields of automobile exhaust purification catalysis, isomerization catalysis and the like. |
| priorityDate | 2018-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.