The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 1987
Filed:
Apr. 03, 1986
William M Targos, Palatine, IL (US);
UOP Inc., Des Plaines, IL (US);
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.