FIELD: chemistry.
SUBSTANCE: disclosed catalyst systems include a chromium complex of general formula [(Ph2PXPPh2)Cr(H2O)Cl3], where X is a hydrocarbon biradical or a substituted hydrocarbon biradical, or [Ph2P(1,2-C6H4)PPh (1,2-C6H4)CH3]CrCl3 together with an activator/co-activator - methylaluminoxane/trimethylaluminium system. Components of the system are in the following molar ratio: chromium complex:MAO:TMA = 0.1%:21.4%:78.5%.
EFFECT: high selectivity of the catalyst with respect to 1-hexene while maintaining high efficiency of the catalyst system and reducing the amount of ethylene polymerisation by-products.
2 cl, 2 tbl, 8 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST SYSTEM FOR TRIMERISATION OF ETHYLENE TO ALPHA-OLEFINS | 2013 |
|
RU2525118C1 |
| CATALYTIC SYSTEM OF ETHYLENE IN 1-HEXENE TRIMERISATION | 2014 |
|
RU2549897C1 |
| METHOD FOR PRODUCING 1-HEXENE FROM ETHYLENE BY TRIMERISATION | 2015 |
|
RU2581052C1 |
| METHOD FOR OLIGOMERIZATION OF ETHYLENE IN ORGANIC SOLVENT MEDIUM IN PRESENCE OF CHROMIUM CATALYST AND ORGANOALUMINIUM ACTIVATOR | 2018 |
|
RU2717241C1 |
| CATALYTIC COMPLEX OF SELECTIVE ETHYLENE IN 1-HEXENE TRIMERISATION | 2014 |
|
RU2549833C1 |
| HIGHLY ACTIVE AND HIGHLY SELECTIVE CATALYST OF ETHYLENE OLIGOMERISATION AND METHOD OF OBTAINING HEXENE OR OCTENE WITH APPLICATION OF SAID CATALYST | 2010 |
|
RU2541528C2 |
| METHOD FOR OBTAINING BASES OF POLYOLEFIN ANTI-TURBULENT ADDITIVES | 2020 |
|
RU2749903C1 |
| CATALYST SYSTEM FOR TRIMERISATION OF EHTYLENE INTO 1-HEXENE USING CATALYSTS WITH BRANCHED HYDROCARBON SKELETON | 2014 |
|
RU2556640C1 |
| CATALYST COMPOSITION AND METHOD FOR DI-, TRI- AND/OR TETRAMERISATION OF ETHYLENE | 2008 |
|
RU2456078C2 |
| CATALYST COMPOSITION AND ETHYLENE OLIGOMERISATION METHOD | 2008 |
|
RU2467797C2 |
