http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109678172-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-18 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0018 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B39-085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B37-005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B39-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-04 |
| filingDate | 2019-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109678172-B |
| titleOfInvention | Preparation method of titanium-containing MWW structure molecular sieve and application of titanium-containing MWW structure molecular sieve in catalytic epoxidation |
| abstract | The invention provides a preparation method of a titanium-containing MWW structure molecular sieve and application thereof in catalytic epoxidation, and relates to the technical field of molecular sieves. The invention comprises the following steps: (1) mixing a boron-silicon MWW molecular sieve ERB-1 with a modified solution, and carrying out high-temperature reaction to obtain a boron-removed molecular sieve D-ERB-1, wherein the modified solution is one of an acidic solution of 4-8 mol/L, an alkaline solution of 0.2-0.9mol/L, and a mixed solution of acid and salt thereof; (2) placing a boron-removing molecular sieve D-ERB-1 in a reactor, and carrying saturated vapor pressure titanium halide gas in a volatilizer into the reactor by using nitrogen at the temperature of 300-600 ℃; (3) and (3) carrying out alcoholysis on the reacted molecular sieve, drying and roasting to obtain the titanium-containing MWW structure molecular sieve Ti-D-ERB-1. In the invention, a titanium source reacts with the silicon hydroxyl nest after boron removal in the form of titanium halide gas to be embedded into an MWW structure, and titanium atoms react with the hydroxyl nest to enter a framework and are tightly combined. The added titanium has strong adjustability, and the synthesized catalyst can catalyze the epoxidation reaction of larger molecules and hydrogen peroxide as an oxidant. |
| priorityDate | 2019-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.