Mineral oils: processes and products – Paraffin wax; treatment or recovery – Chemical treatment
Reexamination Certificate
2005-09-27
2005-09-27
Griffin, Walter D. (Department: 1764)
Mineral oils: processes and products
Paraffin wax; treatment or recovery
Chemical treatment
C208S111350
Reexamination Certificate
active
06949181
ABSTRACT:
Method for impregnating a Group VIII metal on a molecular sieve—binder extrudate wherein the binder comprises a low acidity refractory oxide binder material, which is essentially free of alumina, bya) contacting the molecular sieve—binder extrudate with an aqueous solution of a corresponding Group VIII metal nitrate salt having a pH of below 8, wherein the molar ratio between the Group VIII metal cations in the solution and the number of sorption sites present in the extrudate is equal to or larger than 1, andb) drying the molecular sieve—binder extrudate obtained from step a).
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Remans Thomas Joris
Van Vegchel Ingrid Maria
Griffin Walter D.
Shell Oil Company
Stewart Charles W.
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