III International Conference

PP-II-142selectivity of the hexene-1 oligomerization had shown to change in time by compositionanalysis data for reaction mixture over 8 h: the selectivity diagram passes through themaximum for С 12 . To the end of 8-th hour the oligomerization products were С 9 -С 12 (ΣС 13+ ≤1 wt%) with normal or iso-structures in the ratio С 9 :С 10 :ΣС 11,12 =35:30:35. The process runsobviously by polymerization-depolymerization mechanism.Thus, it is demonstrated herein that mesoporous titanium-silicates, modified by Ce, Co,Ni, Ru, Zn, are promising for development on their basis the modern, highly selectivecatalysts for petrol component production in accordance with modern ecological demands.The authors thank Prof. A.N. Ozerin, Drs E.S. Obolonkova and A.S. Merekalov for SEMand AFM analyses.425