Polymerisationskatalysator und Verfahren zu seiner Herstellung

摘要

1298220 Oligomerizing olefins UNION CARBIDE CORP 16 Dec 1969 [17 Dec 1968 20 Nov 1969] 61125/69 Heading C5E [Also in Divisions B1 and C3] Ethylene is oligomerized, e.g. to butenes, optionally with other α-olefins, in the presence of a catalyst comprising a #-allyl chromium (III) compound at least partially reduced to the (II) valence state and supported, e.g. on an inorganic oxide. Hydrogen may be present.