Preparation of a catalytic composite containing germanium and platinum

Abstract

Abstract A PLATINUM GROUP COMPONENT AND A GERMANIUM COMPONENT AND UNIFORMLY DISPERSED THROUGHOUT A POROUS HIGH SURFACE AREA CARRIER MATERIAL BY THE STEPS OF: FIRST, MIXING GERMANIUM TETRACHLORIDE WITH ANHYDROUS ALCOHOL TO FORM A SOLUTION THEREOF; SECOND, TREATING THE RESULTING SOLUTION TO ESTABLISH AN EQUILIBRIUM CONDITION THEREIN; THIRD, ADMIXING THE RESULTING TREATED SOLUTION WITH AN AQUEOUS SOLUTION OF A WATER-SOLUBLE, DECOMPOSABLE COMPOUND OF A PLATINUM GROUP METAL TO FORM A PRECIPITATE-FREE IMPREGNATION SOLUTION; FOURTH, CONTACTING THE RESULTING IMPREGNATION SOLUTION WITH A POROUS, HIGH SURFACE AREA CARRIER MATERIAL AT IMPREGNATION CONDITIONS; AND FINALLY DRYING AND CALCINING THE RESULTING IMPREGNATED CARRIER MATERIAL. KEY FEATURE OF THIS METHOD OF PREPARATION INVOLVES TREATMENT OF THE SOLUTION OF GERMANIUM TETRACHLORIDE AND ALCOHOL TO INSURE THE FORMATION OF A PRECIPITATE-FREE IMPREGNATION SOLUTION, THEREBY ENABLING BOTH THE PLATINUM GROUP COMPONENT AND THE GERMANIUM COMPONENT TO BE SIMULTANEOUSLY ADDED TO THE CARRIER MATERIAL IN A MANNER PROVIDING A UNIFORM DISPERSION OF BOTH COMPONENTS IN THE CARRIER MATERIAL.

Inventors

• 👤 R Mitsche
• 👤 F Wilhelm

Bibliographic Details