FIELD: technological processes.
SUBSTANCE: disclosed is a catalyst composition for oligomerisation of ethylene containing (i) an at least partially hydrolysed transition metal compound which can be obtained by controlled addition of water to a transition metal compound of the general formula MXm(OR')4-m or MXm(OOCR')4-m, where R' is an alkyl, alkenyl, aryl, aralkyl or cycloalkyl group, X is a halogen, preferably Cl or Br, and m denotes a number from 0 to 4, preferably 0-3; and (ii) an organoaluminium compound as a cocatalyst. The molar ratio of water to the transition metal compound is the range of (0.01-3):1. The invention also discloses a method for oligomerisation of ethylene and a method of producing the catalyst composition.
EFFECT: catalyst composition increases the degree of purity of obtained alpha-olefins and minimises formation of wax/polymer in the reactor.
12 cl, 2 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST COMPOSITION AND METHOD OF PRODUCING LINEAR ALPHA-OLEFINS | 2008 |
|
RU2456076C2 |
| METHOD FOR PRODUCING CATALYST FOR OLIGOMERISATION OF ETHYLENE AND OLIGOMERISATION THEREOF | 2020 |
|
RU2759004C1 |
| METHOD AND CATALYTIC COMPOSITION FOR PRODUCING LINEAR ALPHA-OLEFINS WITH HIGH YIELD BY ETHYLENE OLIGOMERIZATION | 2022 |
|
RU2821397C2 |
| CATALYST COMPOSITION BASED ON ZIRCONIUM CARBOXYLATE AND METHOD FOR ITS PREPARATION | 2022 |
|
RU2815426C1 |
| CATALYST SYSTEM FOR OLIGOMERIZATION OF ETHYLENE INTO LINEAR ALPHA-OLEFINS | 1997 |
|
RU2117012C1 |
| CATALYST COMPOSITION AND ETHYLENE OLIGOMERISATION METHOD | 2008 |
|
RU2467797C2 |
| METHOD OF EXTRACTING PRODUCTS OF OLIGOMERISATION OF OLEFINS AND DECOMPOSITION OF OLIGOMERISATION CATALYST RESIDUES | 2011 |
|
RU2471762C1 |
| METHOD OF DEACTIVATION OF COMPLEX ORGANOMETALLIC CATALYST FOR HOMOGENEOUS PROCESSES, FOR EXAMPLE, DIMERIZATION OR OLIGOMERIZATION OF ETHYLENE TO LINEAR ALPHA-OLEFINS AND ITS ISOLATION FROM REACTION MASS | 1997 |
|
RU2123501C1 |
| SOLUTION OF ZIRCONIUM (IV) CARBOXYLATE IN AN AROMATIC SOLVENT AND A METHOD FOR ITS PRODUCTION | 2022 |
|
RU2802024C1 |
| CATALYST COMPOSITION FOR ETHYLENE OLIGOMERISATION AND OLIGOMERISATION METHOD | 2011 |
|
RU2571829C2 |
