Method of making a catalyst composition comprising uniform size

Details Method of making a catalyst composition comprising uniform size Method of making a catalyst composition comprising uniform size

1986-04-03

1987-12-22

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

502258, 502325, 502332, 502333, 502334, 502339, B01J 2104, B01J 2108, B01J 2112, B01J 2340

Patent

active

047146931

ABSTRACT:
A reverse micelle impregnant solution comprising a hydrocarbon solvent, a surfactant having both polar and nonpolar characteristics and a metal ion containing water core wherein the concentration of said metal ion in said water core is greater than 0.1 moles/liter. The reverse micelle is prepared by first dissolving a metal compound in water. In order to maintain a minimum water core diameter a small amount of the aqueous solution is then added to a surfactant/hydrocarbon solution to form the reverse micelle impregnant solution. Metals contemplated include the platinum metals and Group VIII metals. The surfactant may be nonionic, anionic or cationic or any combination thereof. A reverse micelle solution containing co-surfactants and/or co-metals is also contemplated. In addition, a method for depositing metals contained in the reverse micelle impregnant solution on a support to form a composition wherein substantially all of the active metal impregnated on the support is found as metal particles in a pre-specified metal particle size range below about 200 A is disclosed.

REFERENCES:
patent: 3992331 (1976-11-01), Petrow et al.
patent: 4425261 (1984-01-01), Stenius et al.
patent: 4593016 (1986-06-01), Amelio et al.
Boudart, "Structure Sensitivity of Hydrocarbon Syntheses from CO and H.sub.2 ", vol. 88, No. 11, pp. 2185-2195 (1984).

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