http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2736265-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d7b569662144043e060fc65e2376d080 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-76 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-72 |
| filingDate | 2020-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d94f86f63c22d6838d04e0f7b9c6aaf5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d98c11cafb90972126f7153ff98c927 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da6f8120bb2bf37a2c514de7a7e68522 |
| publicationDate | 2020-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2736265-C1 |
| titleOfInvention | Method for preparation of copper-containing zeolites and use thereof |
| abstract | FIELD: chemistry.SUBSTANCE: invention relates to chemistry and specifically to preparation of copper-containing zeolites. Invention relates to a method of preparing copper-containing zeolites with an atomic ratio of Cu/Al in range of 0.3-0.75 and high activity states of Cu (II) cations, specifically: associates of isolated Cu (II) ions and structures of Cu (II) ions with non-framework oxygen, which consists in ion exchange of H-, NH4-or Na-forms of zeolite with aqueous-ammonium solutions of ammoniac complexes Cu (II) at temperature 20-35°C and pH in range of 8-12. For preparation of water-ammonium solution of ammoniacal complexes Cu (II) there used are insoluble or slightly soluble in water basic salts of copper (II), such as: basic carbonate, basic nitrate, basic sulphate, basic chloride, dissolving them at temperature of 20-50°C in an aqueous solution of ammonium hydroxide in molar ratio NH4OH/Cu in range of 5-15, wherein the concentration of the ammoniacal complex Cu (II) in the solution is in range of 0.005 to 0.2 mol/l, preferably 0.02-0.125 mol/l, and the zeolite used is zeolites, the silicate module of which is within 2-50, for example ZSM-5, CHA, SSZ-13, SAPO-34, MOR, USY, Y, BEA. Invention also relates to use of copper-containing zeolites as catalysts.EFFECT: technical result consists in improvement of efficiency and selectivity of catalysts based on copper-containing zeolites in processes of selective catalytic reduction of nitrogen oxides and oxidation of hydrocarbons, carbon monoxide and soot, in a wide range of temperatures, as well as in improving catalyst resistance to water vapor deactivation.5 cl, 2 tbl, 24 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113634278-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2775464-C1 |
| priorityDate | 2020-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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