METHOD OF PREPARING TITANIUM CATALYST FOR STEREOSPECIFIC POLYMERISATION OF ISOPRENE Russian patent published in 2013 - IPC B01J37/04 C08F4/64 C08F4/642 C08F236/08 C08F136/08 

FIELD: chemistry.

SUBSTANCE: invention relates to petrochemical industry. Described is a method of preparing a titanium catalyst for stereospecific polymerisation of isoprene in the presence of a catalyst system TiCl₄-Al(i-C₄H₉)₃-diphenyloxide-piperylene by mixing toluene solutions of titanium tetrachloride, which contains phenyl oxide, and triisobutylaluminium, which contains piperylene, in molar ratio of the titanium and aluminium components of the catalyst to diphenyl oxide and piperylene of 1:0.15, at temperature of (-20)-(-10)°C, followed by circulation of the catalyst on an outer loop with collection of isoprene for polymerisation, wherein a small tubular turbulent reactor with a diffuser-confusor design is mounted at the step for circulation on the outer mixing loop.

EFFECT: method enables to reduce consumption of the titanium catalyst during isoprene polymerisation.

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