FIELD: chemistry.
SUBSTANCE: present invention relates to the technical field of heterogeneous catalytic reactions for polymerisation of olefins, in particular to a sphere-like super-macroporous mesoporous material. Disclosed is a mesoporous material in form of silicon dioxide particles having a two-dimensional hexagonal ordered channel structure. Average pore diameter in the material is from 10 to 15 nm, the specific surface area is from 300 m2/g to 400 m2/g and the average particle size is from 1 mcm to 3 mcm. Weight content of water in the mesoporous material is less than 1 ppm, and the weight content of gaseous oxygen in the mesoporous material is less than 1 ppm, based on the total weight of the mesoporous material.
EFFECT: invention is used in a polyolefin catalyst, and the polyolefin catalyst is used in an olefin polymerisation reaction, it has a higher catalyst efficiency and can produce a polyolefin product with a narrower molecular weight distribution and a better melt index.
19 cl, 5 dwg, 3 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYOLEFIN CATALYST COMPONENT CONTAINING MESOPOROUS MATERIAL, ITS PRODUCTION METHOD, AND ITS USE | 2019 |
|
RU2786576C2 |
| DEVICE FOR PRELIMINARY CONTACT OF CATALYST FOR CONTINUOUS POLYMERISATION OF OLEFINS AND METHOD OF PRELIMINARY CONTACT OF CATALYST | 2017 |
|
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| CATALYTIC COMPONENT FOR OLEFIN POLYMERIZATION, ITS PRODUCTION METHOD, AND CATALYST INCLUDING IT | 2019 |
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| HETEROGENEOUS CATALYST COMPOSITION FOR POLYMERISATION OF ISOPRENE, METHOD FOR PRODUCTION AND USE THEREOF | 2011 |
|
RU2569674C2 |
| CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, CATALYST AND THEIR APPLICATION | 2017 |
|
RU2758673C2 |
| GRADIENT COPOLYMER, PRODUCTION THEREOF AND USE THEREOF | 2017 |
|
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| INSTALLATION AND METHOD FOR OBTAINING POLYALPHAOLEFINS | 2021 |
|
RU2809822C1 |
