METHOD OF PREPARING SUPPORTED CATALYST AND METHOD FOR COPOLYMERISATION OF OLEFINS WITH CARBON MONOXIDE ON SUPPORTED CATALYST Russian patent published in 2010 - IPC B01J23/44 B01J31/18 B01J31/04 B01J37/04 C08G67/02 

FIELD: chemistry.

SUBSTANCE: invention relates to production of alternating copolymers of olefins with carbon monoxide through catalytic copolymerisation in suspended copolymerisation conditions. Described is a method of preparing a supported catalyst for copolymerisation of olefins with carbon monoxide, involving synthesis of a palladium complex by reacting palladium (II) salts, a bidentate ligand Y^{^}Y of general formula R₁R₂YRYR₃R₄, where Y=N or P; R=C_nH_2n, where n=2-4; R₁-R₄=-C₆H₅ or -C₆H₄OCH₃ groups, and hydrogen acid HX with pKa≤2, selected from acids CH₃COOH, CF₃COOH, HBF₄, CH₃C₆H₄SO₃H, with subsequent addition to catalytic solution of the carrier, where the mixture of the catalytic solution and polymer or inorganic carrier is stirred for 0.5-2 hours in an inert atmosphere of a medium containing methanol and toluene, with subsequent removal of the liquid phase until obtaining a solid desired product. Also described is a method for copolymerisation of olefins with carbon monoxide at temperature 20-95° and pressure of comonomers of 0.1-5 MPa. The copolymerisation process is carried out in the presence of a supported catalyst prepared using the above described method in suspended copolymerisation conditions in a medium of hydrocarbons with addition of 5-7 wt %, methanol or alcohol medium.

EFFECT: increased output of product per gram of carrier; possibility of using different media in suspended copolymerisation conditions; the catalyst is used as a solid end product and does not lose its activity for a long period of time.

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