Hydroisomerization of wax or waxy feeds using a catalyst...

C - Chemistry – Metallurgy – 07 – C

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C07C 9/22 (2006.01) B01J 23/40 (2006.01) B01J 23/74 (2006.01) B01J 23/85 (2006.01) B01J 37/02 (2006.01) C07C 5/27 (2006.01) C10G 45/60 (2006.01)

Patent

CA 2082889

Wax and waxy feeds are hydroisomerized by contacting the wax or waxy feed under isomerization conditions with a catalyst comprising a thin outer shell of catalytic material bonded to an inner core of catalytically inert material. The catalyst is made by coating a catalytically inert core such as alpha alumina, with a thin layer of finely divided catalytically active material in a slurry of colloidal boehmite/pseudo boehmite then calcining to convert the boehmite/pseudo boehmite into alumina which bonds to the inert alumina core. Catalysts made by this technique for hydroisomerization contain an outer shell of platinum on fluorided alumina on an inert core of alpha alumina.

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