Smoking products

Details Smoking products Smoking products

1979-01-17

1982-03-02

Millin, V.

Tobacco

Smoke separator or treater

By chemical reaction, e.g., ion-exchange, chelating,...

423247, A24B 1504, A24D 106

Patent

active

043174604

ABSTRACT:
Catalysts for the low temperature oxidation of carbon monoxide to carbon dioxide, used in smoking product filters, are described. The catalysts are carried upon a support which should be microporous. The catalysts may include mixtures of tin or tin compounds with other catalytic material. The catalysts may involve a Redox mechanism. The catalysts exhibit resistance to deactivation caused by contact with water.

REFERENCES:
patent: T901024 (1972-08-01), Sloan
patent: 3355317 (1967-11-01), Keith et al.
patent: 3368566 (1968-02-01), Avedikian
patent: 3472237 (1967-10-01), Stephens
patent: 3790662 (1974-02-01), Cloyd
patent: 4055191 (1977-10-01), Norman et al.
"Catalytic Cigarette Filter for Carbon Monoxide Reduction" by Rave & Lloyd, J. Air Polution Control Assoc., vol. 28, Part 3, pp. 253-255, 3/1978.
"Development of Ethylene Process Vinyl Acetate and Process Comparisons" by Ohmcie:Chemical Economy & Engineering Review, 11/1972, vol. 4, No. 11 (No. 55).

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