http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021031193-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_008c9107ff464e201e724ad32b7630cc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-37 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-18 |
| filingDate | 2019-08-22^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd6705818225c17563f59060af8bb772 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc8426064623d670bab3da809a24a49e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7573673d1559737095e75e7b7798094b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19edb1f17132bc9b4e4178bfdab388b9 |
| publicationDate | 2021-02-25^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2021031193-A1 |
| titleOfInvention | Modified mordenite molecular sieve and preparation method therefor |
| abstract | Provided is a modified mordenite molecular sieve and a preparation method therefor. When the number of acid sites of a twelve-membered ring in the modified mordenite molecular sieve is less than or equal to 0.2 mmol/g, the number of acid sites of a side pocket is greater than or equal to 0.2 mmol/g. The preparation method for the modified mordenite molecular sieve comprises: acquiring an Na-MOR molecular sieve; using silicon tetrachloride to perform an isomorphous replacement reaction on the Na-MOR molecular sieve to obtain a precursor; subjecting the precursor to ammonium ion exchange and roasting to obtain the modified mordenite molecular sieve. The described method may selectively generate isomorphous replacement reactions on the outer surface of the mordenite and a twelve-membered ring pore channel to carry out dealumination and silicon supplementation modification, thereby directionally eliminating the acid sites from the outer surface of the molecular sieve and the twelve-membered ring pore channel, and continuing to maintain the activity of acid sites in an eight-membered ring pore channel. |
| priorityDate | 2019-08-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Showing number of triples: 1 to 35 of 35.