Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Patent
1996-06-12
2000-05-30
Straub, Gary P.
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
423483, 588213, C01B 1719, A62D 300
Patent
active
06069291&
ABSTRACT:
A process and composition for transforming perfluoroalkanes in the presence of an oxidizing agent and water at temperatures between about 400 to 1,000.degree. C. Aluminum oxide is the primary agent for effecting this transformation. Additions of between 0.1 to 50% by weight of other components such as barium calcium, phosphorus, cerium, chromium, cobalt, iron, lanthanum, magnesium, nickel, silicon, titanium, yttrium or zirconium aid in extending the useful life of the catalyst. A preferred catalyst composition includes aluminum oxide with additions of cobalt and one or more of the elements of cerium, titanium or zirconium.
REFERENCES:
patent: 4053557 (1977-10-01), Kageyama
patent: 4435379 (1984-03-01), Olson et al.
patent: 4459372 (1984-07-01), Arenn
patent: 4587116 (1986-05-01), Livingston et al.
patent: 5151263 (1992-09-01), Okazaki et al.
patent: 5276240 (1994-01-01), Timmons
patent: 5276249 (1994-01-01), Greene et al.
patent: 5283041 (1994-02-01), Nguyen et al.
patent: 5396022 (1995-03-01), Wu et al.
patent: 5457268 (1995-10-01), Greene et al.
Karmaker & Green, An Investigation of CFC12 (CCL.sub.2 F.sub.2) decomposition on TiO.sub.2 Catalysts, J. Catal., 1995, p. 394 Academic Press, San Diego.
Bickel et al, Catalytic Destruction of Chlorofluorocarbons and Toxic Chlorinated Hydrocarbons, Appl. Catal. B:Env., 1994, p. 141, Elsevier, Amsterdam.
Fan & Yates, Infared Study of the Oxidation of Hexafluoropropene on TiO.sub.2, J. Phys. Chem. 1994, p.1061, Americal Chemical Society, Easton, PA.
Farris et al, Deactivation of a Px/Al.sub.2 O.sub.3 Catalyst During the Oxidation of Hexafluoropropylene, Catal. Today, 1992, p. 501, Elsevier, Amsterdam.
Campbell & Rossin, Catalytic Oxidation of Perfluorocyclobutene over a Px/TiO.sub.2 Catalyst, paper presented at 14th N. Amer. Catalysis Society Meeting, 1995.
Burdenine & Crabtree, Mineralization of Chlorofluorocarbons and Aromatization of Saturated Fluorocarbons by a Convenient Thermal Process, Science, 1996, p. 340. Amer. Assoc. for the Advent of Science, D.C.
Nagata et al, Catalytic Oxidative Decomposition of Chlorofluorocarbons (CFCs) in the Prescence of Hydrocarbons, Applied Catalysts B: Environmental, 1994, pp. 23-31, Elsevier, Amsterdam.
Bond & Sadesgi, Catalysed Destruction of Chlorinated Hydrocarbons J. Appl. Chem. Biotechnol. 1975, pp. 241-248, Society of Chemical Industry, London.
Maurer Scott M.
Rossin Joseph A.
Foster Frank H.
Guild Associates, Inc.
Straub Gary P.
LandOfFree
Catalytic process for the decomposition of perfluoroalkanes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catalytic process for the decomposition of perfluoroalkanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic process for the decomposition of perfluoroalkanes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1911523