Cracking with catalytically active amorphous silica

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking

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208119, 208118, C10G 1104, C10G 1105

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active

044811020

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 silica is catalytically active for, among other chemical reactions, the isomerization of ortho-xylene and the cracking of hydrocarbons.

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