Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1992-02-03
1993-12-28
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204194, 588204, 588209, 588210, 588211, C25B 100
Patent
active
052736296
ABSTRACT:
A process and apparatus for treating any fluidizable solid material having an organic oxidizable contaminant absorbed or adsorbed thereon, particularly a sludge contaminated with polychlorinated biphenyl or other toxic chemicals having a boiling point of at least 110.degree. C. The method and apparatus includes heating the fluidizable solids, to a temperature of about 200.degree. F. to about 700.degree. F., preferably about 200.degree. F. to about 400.degree. F., e.g., by using hot turbulent gas at a temperature in the range of 850.degree. to 2,500.degree. F. to vaporize and thereby separate the toxic organic material. The recoverable or toxic contaminant vapors and/or liquids are charged to an electrochemical cell where they are oxidized to less toxic or non-toxic materials, such as HCl and CO.sub.2.
REFERENCES:
patent: 4443309 (1984-04-01), Van Duin et al.
patent: 4585533 (1986-04-01), Habeeb
patent: 4685220 (1987-08-01), Meenan et al.
Meenan William C.
Sullivan George D.
Niebling John
Phasge Arun S,.
Recycling Sciences International, Inc.
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