Compositions – Oxidative bleachant – oxidant containing – or generative – Contains organic peroxide
Patent
1975-03-31
1977-08-23
Padgett, Benjamin R.
Compositions
Oxidative bleachant, oxidant containing, or generative
Contains organic peroxide
23288F, 55 68, 55387, 55DIG30, 252408, 4232135, 423246, 423247, B01D 5334, C10K 126
Patent
active
040439348
ABSTRACT:
A reducing gas, such as, carbon monoxide (CO) or unsaturated hydrocarbons, is oxidized by contacting a mixture of the gas and oxygen with a catalyst or reagent which includes palladium sulfate and ammonium molybdate adsorbed on silica gel. The reducing gas is oxidized by the reagent and simultaneously reduces the reagent from a first oxidation state to a second, with an accompanying color change, which indicates the presence of the reducing gas. If the reducing gas is an unsaturated hydrocarbon it can be converted to an oxygenated hydrocarbon. A salt of a transition metal (such as, copper, iron, or nickel) is included in the reagent so it is oxidized back to the first state (regenerated) by atmospheric oxygen. The catalyst also promotes the synthesis of oxygenated hydrocarbons from the reaction of unsaturated hydrocarbons with other hydrocarbons.
REFERENCES:
patent: 2487077 (1949-11-01), Shepherd
patent: 2738257 (1956-03-01), Darby
patent: 3758666 (1973-09-01), Frevel et al.
patent: 3790662 (1974-02-01), Lloyd et al.
Shepherd, "Rapid Determination of Small Amounts of Carbon Monoxide," Anal. Chem., vol. 19, (2), 1947, pp. 77-81.
Chemical Abstracts, "Carbon Monoxide Indication," vol. 56, 1962, p. 3778a.
Schrauzer Gerhard N.
Shuler Kurt E.
Gluck Irwin
Padgett Benjamin R.
The Regents of the University of California
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