C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
252/4
C10G 35/095 (2006.01) B01J 29/62 (2006.01)
Patent
CA 1272471
ABSTRACT OF THE DISCLOSURE A highly selective zeolitic reforming catalyst is disclosed that contains a promoter selected from the group consisting of iron, cobalt, and titanium and that has a platinum to promoter weight ratio of less than 10:1. In one embodiment a type L zeolite is formed by combining an aqueous solution of potassium hydroxide, aluminum hydroxide, and ferric nitrate with an aqueous solution of silica to form a thickening gel in a mother liquor; heating the thickening gel to form a type L zeolite; cooling the solution containing the type L zeolite; decanting the mother liquor from the solution; filtering the type L zeolite from the solution; washing the filtered type L zeolite so that the pH of the wash is about 10-1/2; and drying the washed type L zeolite. The catalyst is formed by adding platinum to the dried type L zeolite by pore fill impregnation with an aqueous solution of Pt(NH3)4(NO3)2 to form a catalyst; drying the catalyst and calcining the catalyst.
506784
Lewis Robert T.
Long John J.
Santilli Donald S.
Chevron Research And Technology Company
Smart & Biggar
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