Materials and methods for photocatalyzing oxidation of organic c

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

502159, 502242, 502253, 502338, 502342, 502343, 502351, 428404, 428405, 428406, 428407, 501 33, C03C 306

Patent

active

052566161

ABSTRACT:
A bead having an exterior surface which is at least partially coated with a material that under illumination and in the presence of air is capable of accelerating the oxidation of organic compounds floating on water. The coated bead is water floatable and has an equivalent diameter of less than about 2 mm, preferably on the order of 10-30 microns. These coated beads can be used to accelerate under illumination oxidation of a floating oil film (e.g. from an oil spill) by dispersing the coated beads in the film and allowing them to be exposed to solar illumination and oxygen.

REFERENCES:
patent: 2885366 (1959-05-01), Iles
patent: 3437502 (1969-04-01), Werner
patent: 3518206 (1970-06-01), Sowards et al.
patent: 3562153 (1971-02-01), Tully
patent: 3661495 (1972-05-01), Johnston
patent: 3661496 (1972-05-01), Johnston
patent: 3661497 (1972-05-01), Castellucci et al.
patent: 3695810 (1972-10-01), Heagler
patent: 3698850 (1972-10-01), Sparlin
patent: 3726441 (1973-04-01), Keyes et al.
patent: 3843306 (1974-10-01), Whittington
patent: 3923533 (1975-12-01), Hannel et al.
patent: 4255285 (1981-03-01), Engelbach et al.
patent: 4474852 (1984-10-01), Craig
patent: 4863608 (1989-09-01), Kawai
patent: 5098577 (1992-03-01), McLaughlin et al.
Payne, et al., "Photochemistry of petroleum in water", Environ. Sci. Technol., vol. 19, No. 7, pp. 569-579 (1985).
Gesser, et al., "Photooxidation of n-Hexadecane Sensitized by Xanthone", Environmental Science & Technology, vol. II, No. 6, pp. 605-608 (1977).
Pilpel, "Photo-Oxidation of Oil Films Sensitized by Naphthalene Derivatives", Institute of Petroleum, IP 75-007 (1975).
Cretney, et al., "Biodegradation of a Chemically Dispersed Crude Oil", EPA/API/USCG Oil Spill Conference (Mar. 25, 1981) pp. 37-43.
American Petroleum Institute, "Oil Spills: their fate and impact on the marine environment", Oil Companies International Marine Forum/International Petroleum Industry Environmental Conserva-Association Report, pp. 1-26 (Mar., 1980).
Hansen, "Photochemical Degradation of Petroleum Hydrocarbon Surface Films on Seawater", Marine Chemistry, vol. 3, p. 183-(1975).
Anikiyev, et al., "Estimate of the Efficiency of Photochemical Degradation of Oil Pollutants in the Ocean", Dokl. Earth Sci. Sect., vol. 259, pp. 218-221 (1981).
Parker, et al., "The Effect of Some Chemical and Biological Factors on the Degradation of Crude Oil at Sea", Water Pollution by Oil, pp. 237-244 (1970).
Philpel, "Le soleil, notre allie dans la lutte contre la pollution", Chimia, vol. 28, No. 5, pp. 261-262 (1974).
Heller, et al., "Controlled Suppression and Enhancement of the Photoactivity of Titanium Dioxide (Rutile) Pigment", The Journal of Physical Chemistry, vol. 91, No. 23, pp. 5987-5991 (1987).
Heller, "Hydrogen-Evolving Solar Cells", Science, vol. 223, pp. 1141-1148 (1984).
Soloman, et al, "2.4 Photochemical Activity of Titanias", Chemistry of Pigments and Fillers, pp. 62-84 (1981).
Kalyanasundaram, "Semiconductor Particulate Systems for Photocatalysis and Photosynthesis-H. Photooxidation of Organic Materials", Energy Resources Through Photochemistry and Catalysis, p. 232 (1983).
Sakata, et al., "10.VII. Application of Photocatalytic Reaction to Organic Synthesis", Energy Resources Through Photochemistry and Catalysis, pp. 355-358 (1983).
Sax, et al., Dangerous Properties of Industrial Materials, p. 1172 (4th ed. 1975) (1987).
Colling, et al., "The Durability of Paint Films Containing Titanium-Dioxide-Contraction, Erosion and Clear Layer Theories," Advances in Organic Coatings Science and Technology, vol. IV, pp. 205-238 (1982).
Berner, et al. "Light Stabilization of Automotive Coatings," Advances in Organic Coatings Science and Technology, vol. IV, pp. 334-354 (1981).
Thomas, "Single-layer TiO.sub.2 and multilayer TiO.sub.2 -SiO.sub.2 optical coatings prepared from colloidal suspensions," Applied Optics, vol. 26, No. 21, pp. 4688-4691 (1987).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Materials and methods for photocatalyzing oxidation of organic c does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Materials and methods for photocatalyzing oxidation of organic c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Materials and methods for photocatalyzing oxidation of organic c will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-959260

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.