Process for producing cycloolefins

Details Process for producing cycloolefins Process for producing cycloolefins

C - Chemistry, Metallurgy

07

C

260/693.5

C07C 5/11 (2006.01) B01J 23/60 (2006.01) B01J 23/62 (2006.01) B01J 23/64 (2006.01) B01J 23/89 (2006.01) C07C 13/20 (2006.01)

Patent

CA 1267914

ABSTRACT OF THE DISCLOSURE A process for producing a cycloolefin in high selectivity and yield by partial hydrogenation of a mono- cyclic aromatic hydrocarbon with hydrogen is disclosed. In this process, the hydrogenation reaction is carried out under a neutral or acidic condition in the presence of: i) a particulate hydrogenating catalyst mainly comprising metallic ruthenium having an average crystallite size of 200 .ANG. or less, ii) at least one zinc compound as a promoter, iii) at least one additive selected from the group consisting of oxides, hydroxides and hydrates thereof Zr, Hf, Ti, Nb, Ta, Cr, Fe, Co, A?, Ga and Si, and iv) water.

519351

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