Hydrocarbon conversion process using an amorphous silica/alumina

Details Hydrocarbon conversion process using an amorphous silica/alumina Hydrocarbon conversion process using an amorphous silica/alumina

1992-06-23

1993-07-27

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

208111, 208114, 208120, 585467, 585528, 585532, 585667, 585740, 585750, C10G 1104, C10G 4704, C07C 406

Patent

active

052307891

ABSTRACT:
This invention relates to hydrocarbon conversion processes using a catalytic composite which is an amorphous solid solution of phosphorus, silicon and aluminum oxides. The composite is characterized in that it contains from about 5 to about 50 weight percent Al.sub.2 O.sub.3, from about 10 to about 90 weight percent SiO.sub.2 and from about 5 to about 40 weight percent P.sub.2 O.sub.5 and has pores whose average diameters range from about 30 to about 200 Angstroms. The composite is further characterized in that it has a pore volume of about 0.35 to about 0.75 cc/g and a surface area of about 200 to about 420 m.sup.2 /g. The composite may be prepared by forming a mixture of sols of alumina and silica and a phosphorus compound, gelling the mixture to form particles and then calcining the particles to provide the amorphous solid solution. The amorphous composite may be used either as is or with additional catalytic metals (selected from the metals of Group VIB and VIII of the Periodic Table) dispersed thereon.

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