http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2770421-C2
Outgoing Links
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| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d80228fea1bfe12324a6d4353d6702eb |
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1066 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1061 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-084 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1038 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G11-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B39-023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B39-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-088 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G11-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B39-24 |
| filingDate | 2018-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e29ea74bcf40696b9a01e0b95dfbbba http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9600672fda5f4ba2b5512884a2140153 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2cc54e5329ee96697c73e8148e0b5191 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b11b9a7eca9e16efc17e7e81b88da9ce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55fee24c316fdaea4547908687f63024 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1cd2f400e59795563121d5052e3863e3 |
| publicationDate | 2022-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2770421-C2 |
| titleOfInvention | Magnesium-modified y-type molecular sieve, production thereof and catalyst containing same |
| abstract | FIELD: chemical or physical processes. n SUBSTANCE: present application relates to a highly stable magnesium-modified molecular sieve of type Y, to its production and to a catalyst containing same. Magnesium-modified molecular sieve of type Y has content of oxides of rare-earth elements of 4 to 11 % by weight, content of magnesium oxide of 0.1 to 4 % by weight, sodium oxide content of 0.3 to 0.8 % by weight, a total pore volume of 0.33 to 0.39 ml/g, a percentage of the pore volume of secondary pores having a pore size of 2 to 100 nm, and total pore volume, constituting a modified Y-type molecular sieve of 10 to 30 %, a crystal lattice constant of 2.440 to 2.455 nm, percentage ratio of content of non-framework aluminum and total content of aluminum of modified molecular sieve of type Y, which is 13–19 %, and temperature of destruction of crystal lattice, component of not less than 1045 °C. Method of producing a magnesium-modified molecular sieve of type Y includes the following steps: (1) contacting the NaY molecular sieve with a solution of salts of rare-earth elements for an ion exchange reaction to obtain a rare-earth element-modified molecular sieve of type Y, having reduced content of sodium oxide; (2) calcining the molecular sieve of type Y obtained in step (1) at temperature of 350 to 480 °C, in an atmosphere containing from 30 to 90 vol. % steam, for 4.5 to 7 hours to obtain a molecular sieve of type Y, having a reduced crystal lattice constant; (3) contacting and reacting the molecular sieve of type Y obtained in step (2) with gaseous silicon tetrachloride to obtain an ultra-stable molecular sieve of type Y having a high content of silicon under the following conditions: weight ratio of SiCl 4 and molecular sieve of type Y, in terms of dry substance, making 0.1:1 to 0.7:1, reaction temperature making from 200 to 650 °C, and reaction duration of 10 minutes to 5 hours; and (4) modifying the ultra-stable Y-type molecular sieve having a high content of silicon dioxide, obtained in step (3), with a magnesium compound to obtain a magnesium-modified Y-type molecular sieve. n EFFECT: increased activity of cracking of heavy oils and improved selectivity with respect to diesel fuel. n 20 cl, 6 tbl, 24 ex |
| priorityDate | 2017-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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