PROCESS FOR THE PRODUCTION OF CYCLOPENTENE FROM CYCLOPENTADIENE

摘要

1341423 Cyclopentene BAYER AG 25 May 1971 [25 May 1970] 16926/71 Heading C5E [Also in Division Bl] Cyclopentene is prepared by partially hydrogenating cyclopentadiene with H 2 in the gas phase at above 50‹ C. in the presence of a supported catalyst containing Pd with additions of up to 2 wt. per cent Cr and up to 2 wt. per cent Ti. Preferably the catalyst support is a lithium aluminium spinel having a Li content of up to 2À6 wt. per cent.