Patent ID: 8637422

Claim:
A method for supporting a catalytic metal on a surface of a carrier by bringing an aqueous catalytic metal salt solution into contact with a porous carrier, the method comprising the steps of: impregnating the carrier with a liquid hydrophobic organic compound by an amount 50% by mass to 100% by mass of oil absorption of the carrier before bringing the aqueous catalytic metal salt solution into contact with the carrier, said organic compound comprising at least one of pentane, hexane, heptane, octane, nonan, decane, toluene, and xylene, drying the impregnated carrier to volatilize the hydrophobic organic compound by 10% by mass to 75% by mass of the compound, followed by bringing the carrier into contact with the aqueous catalytic metal salt solution; and then bringing a reducing agent into contact with the catalytic metal salt on the surface of the carrier to reduce the catalytic metal salt to undergo insolubilization treatment.