C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 8/04 (2006.01)
Patent
CA 2338212
The invention relates to a method for hydrogenating aromatic polymers in the presence of catalysts, where a metal or a mixture of metals from sub-group VIII of the periodic table is used as catalyst together with a support made of silicon dioxide, aluminium dioxide or a mixture thereof. The pore volume of catalyst pore diameters between 100 and 1,000 .ANG., as determined by mercury porosimetry, is generally between 100 and 15 % in relation to total pore volume, as determined by mercury porosimetry.
L'invention concerne un procédé d'hydrogénation de polymères aromatiques en présence de catalyseurs, le catalyseur utilisé étant un métal ou un mélange de métaux du VIIIème groupe secondaire de la classification périodique des éléments, conjointement avec un support en dioxyde de silicium, en dioxyde d'aluminium ou leur mélange. Le volume poreux du diamètre des pores du catalyseur compris entre 100 et 1000 .ANG., mesuré par porosimétrie au mercure, représente de manière générale entre 100 et 15 % par rapport au volume poreux global, mesuré par porosimétrie au mercure.
Rechner Johann
Wege Volker
Zirngiebl Eberhard
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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