Method of making a bulk catalyst
OwnerMark E. Thompson, Venkatesan V. Krishnan +1inventors
InventorsMark E. Thompson, Venkatesan V. Krishnan, Alexandre G. Dokoutchaev
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Abstract
A process for making an improved bulk catalyst having a Group VIII metal, such catalyst being useful in producing H.sub.2 O.sub.2 from H.sub.2 and O.sub.2 and/or in producing H.sub.2 from water. The method incorporates the Group VIII metal within the "pillars" of the porous catalyst, without leaving a significant amount of the Group VIII metal on or near the outside surface of the catalyst, by hydrothermal incorporation of the Group VIII metal into the porous pillars.
Claims9
A method for making a bulk catalyst which comprises (a) forming an aqueous solution of a water solution salt of a Group IVA metal and hydrofluoric acid;
- (b) forming an aqueous solution of (O.sub.3 P-R'--Y--R--PO.sub.3)X.sub.2 wherein R' and R are lower alkyl, X is halogen and Y is an aromatic ring system;
- (c) forming an aqueous solution of (P)m (S) (T)n wherein P is an alkali metal, S is a Group VIII metal having an atomic number greater than 40, T is halogen, hydroxyl or cyanide, m is 2 or 3 and n is 4, 5 or 6;
- (d) mixing aqueous solution (b) with aqueous solution (c) with stirring until an insoluble precipitate is formed;
- (e) and mixing the composition formed in step d with the aqueous solution (a) and heating, with stirring, at a temperature of between about 125.degree. C. to 150.degree. C. until the reaction between the composition formed in step d and aqueous solution (a) is substantially complete.
Dependencies are inferred from the claim text.