SUPPORTED CATALYST USED IN THE PRODUCTION OF CYCLOALKADIENES IN A METATHESIS REACTION

摘要

The invention relates to a supported catalyst used in the production of cycloalkadienes in a metathesis reaction containing a) gamma -Al2O3 as supporting material; b) 2-20 wt.% Re2O7; c) 0.5-5 wt.% B2O3; d) 0-20 wt.% SnR4 or SnO2, or a mixture of SnR4 and SnO2, in which R stands for an alkyl or aryl radical. The invention also relates to a method for producing cycloalkadienes in the liquid phase by metathesis reaction of cycloalkenes, cyclopolyenes, linear polyenes and their mixtures in the presence of the supported catalyst.