CATALYST BASED ON BRIDGE BIS(PHENOXIMINE) COMPLEX, METHOD OF ITS PREPARATION AND PROCESS OF ETHYLENE POLYMERISATION APPLYING IT Russian patent published in 2009 - IPC C08F4/659 C07C251/16 B01J37/04 C08F2/00 C08F110/02 

FIELD: chemistry.

SUBSTANCE: invention relates to field of chemical industry, in particular, to creation of highly active homogenous catalysts. Described is catalyst based on binary bridge bis(phenoximine) complex of titanium, in which as bridge between phenyl substituents of imine nitrogen it contains n - phenylene group, and corresponds to the following formula: . Described is method of preparing described above catalyst by interaction of tetradentate diimine ligand with compound of transitive metal, in which as components for ligand preparation used is 4,4"-diamino-l-terphenyl and 3,5-dicumylsalicilic aldehyde, and as compound of transitive metal used is titanium diisopropoxydichloride TiCl₂(OPr)₂. Described is process of ethylene polymerisation in medium of hydrocarbon solvent in presence of catalyst obtained by claimed method with co-catalyst.

EFFECT: increase of polymerisation process economy due to lower catalyst consumption; obtaining of linear polyethylene with high and extra-high molecular mass, with temperature of melting 140-142°C, improved morphology of polymer powder and absence of its adhering on reactors wall.

4 cl, 2 tbl, 17 ex