Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1975-01-29
1976-12-21
Dees, Carl F.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252455R, 252463, B01J 2906, B01J 2362, B01J 2308
Patent
active
039987590
ABSTRACT:
A method of impregnating a catalytic component on the outer surface of a carrier material is presented. The carrier material is commingled with a common solution of a precursor compound of a catalytically active metallic component and a sulfur-containing carboxylic acid whereby said component is deposited on the outer surface of the carrier material. The aforesaid solution is first aged to yield a catalyst of improved exhaust gas conversion activity.
REFERENCES:
patent: 3367888 (1968-02-01), Hoekstra
patent: 3518207 (1970-06-01), Hagy et al.
patent: 3842017 (1974-10-01), Armistead et al.
Dees Carl F.
Hoatson Jr. James R.
Page II William H.
Universal Oil Products Company
Welch Robert W.
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