Destruction process

Details Destruction process Destruction process

1992-01-27

1992-11-17

Watts, Douglas D.

Solid material comminution or disintegration

Processes

241 4601, A62D 300, B01J 1912, B01J 1918

Patent

active

051636263

ABSTRACT:
A process for the decomposition of photocatalytically decomposable organic material includes exposing the organic material to ultraviolet light as the material is passed across the surface of a spinning disc. The organic material is in the form of a liquid dispersion, preferably an aqueous dispersion and the dispersion also contains anatase titanium dioxide which acts as a catalyst in the decomposition process. Preferably the anatase titanium dioxide has a high surface area.
Organic materials such as hydrocarbons, alcohols, acids, esters and others are destroyed in this environmentally acceptable process.

REFERENCES:
patent: 3402897 (1968-09-01), Willens
patent: 4303486 (1981-12-01), Bard et al.
patent: 4806514 (1989-02-01), Langford et al.
patent: 4893756 (1990-01-01), Fetchenko et al.
patent: 5045288 (1991-09-01), Raupp et al.
Chen-Yung Hsiao et al., "Heterogeneous Photocatalysis:Degradation of Dilute . . . ," Journal of Catalysis, pp. 418-423, Feb. 4, 1983.
Ollis, "Contaminant Degradation in Water," Environ. Sci. Technol., pp. 480-484 (1985).
Serpone et al., "Photocatalysis Over TiO.sub.2 Supported on a Glass Substrate," Solar Energy Materials, pp. 121-127 (May 19, 1986).
Matthews, "Photooxidation of Organic Impurities . . . ," J. Phys. Chem., pp. 3328-3333 (1987).
Matthews, "Carbon Dioxide Formation from Organic Solutes . . . ," Aust. J. Chem., pp. 667-675 (1987).
Al-Ekabi et al., "Kinetic Studies in Heteogeneous Photocatalysis . . . ," J. Phys. Chem., pp. 5726-5731, Apr. 25, 1988.
Tanguay et al., "Dichloromethane Photodegradation Using Titanium Catalysts," Journal of Catalysis, pp. 335-347, Jan. 17, 1989.
Matthews, "Purification of Water With Near-U.V. Illuminated . . . ," Wat. Res. vol. 24, pp. 653-660 (1990).
Australian Journal of Chemistry, "Carbon Dioxide . . . of Solute Concentrations," vol. 40, No. 4, 1987.
Environmental Science and Technology, "Contaminant Degradation in Water," vol. 19, No. 6, 1985.

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