| abstract |
CATALYST POWDERS, SUCH AS PLATINUM, PALLADIUM OR RANEY METALS, ARE RENDERED INSENSITIVE TO AIR OR OXYGEN BY TREATMENT WITH AN OXYGENATED CHLORINE, BROMINE OR IODINE COMPOUND, SUCH AS POTASSIUM OR SODIUM IODATE, CHLORATE OR BROMATE. THE POWDER OBTAINED IS ESSENTIALLY HYDROGEN-FREE, NON-PYROPHORIC AND REACTIVATABLE. THE POWDER MAY BE MOLDED BY HEAT AND PRESSURE TO A FORMED POROUS BODY. |