http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109225320-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-90 |
| filingDate | 2018-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109225320-B |
| titleOfInvention | Method for crystallization regeneration of waste molecular sieve with MFI structure |
| abstract | The invention particularly relates to a crystallization regeneration method of an MFI structure waste molecular sieve with most or completely collapsed framework in the treatment process of coal chemical industry, petrochemical industry, other fine chemical industry and environmental pollutants, and particularly relates to the regeneration of a waste ZSM-5 molecular sieve catalyst inactivated by a methanol conversion hydrocarbon (MTH) preparation process. The method mainly aims at the technical problem of efficient and green conversion and utilization of waste molecular sieves with MFI structures, fully utilizes the original silicon and aluminum elements of the waste molecular sieves with the MFI structures, directly crystallizes and regenerates under the condition of extremely low water consumption, and has reaction activity and service life indexes close to those of fresh commercial MFI molecular sieves. The liquid addition amount is extremely low, the crystallization system is an extremely concentrated system, no water is added into the system, and the amount of the liquid carried by the template agent and the crystallization water in the raw material reagent are relied on; the seed crystal is H-MFI-90 zeolite. The method has the advantages of little discharge of waste liquid and pollutants, short process flow, low operation cost and contribution to industrial application. |
| priorityDate | 2018-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.