摘要:
Catalytic system for the oxidative dehydrogenation of alkylaromatics (in particular ethylbenzene) or paraffins to the corresponding alkenylaromatics (in particular styrene) or to the corresponding olefins, consisting of: a vanadium oxide; a bismuth oxide; and a carrier based on magnesium, wherein the vanadium, expressed as V2O5, is in a quantity ranging from 1 to 15% by weight, preferably from 2 to 10%, the bismuth, expressed as Bi2O3, ranges from 2 to 30% by weight, preferably from 5 to 25% by weight, the complement to 100 being the carrier.
摘要翻译:将烷基芳族化合物(特别是乙苯)或链烷烃氧化脱氢至相应的烯基芳族化合物(特别是苯乙烯)或相应的烯烃的氧化脱氢催化体系,包括:氧化钒;氧化铋;和基于镁的载体,其中 以V 2 O 5表示的钒的量为1〜15重量%,优选为2〜10%,Bi 2 O 3表示的铋为2〜30重量%,优选为5〜25重量% ,补充100作为载体。
摘要:
Process for the alkylation of aromatic compounds which comprises contacting an olefin with an aromatic hydro-carbon in the presence of a zeolite and under conventional operating conditions, characterized in that the aromatic hydrocarbon, before the alkylation, is: a) treated to eliminate the oxygen dissolved therein; and/or b) percolated through a fixed bed consisting of particles of alumina modified with silver.