Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...
Patent
1984-09-10
1985-04-23
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
By addition of entire unsaturated molecules, e.g.,...
585530, 585533, C07C 202
Patent
active
045131589
ABSTRACT:
Catalytically active amorphous silicas are prepared by dehydrating a silica hydrogel or precipitate prepared from an acidified aqueous silicate solution containing an amine of pK.sub.a above 10 or a cation containing either a nitrogen or phosphorus atom bonded to four carbon atoms. The resultant amorphous silica is catalytically active for, among other chemical reactions, the isomerization of ortho-xylene and the cracking of hydrocarbons.
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Koepke Jeffery W.
Young Dean A.
Davis Curtis R.
Sandford Dean
Thompson Alan H.
Union Oil Company of California
Wirzbicki Gregory F.
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