The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 1993
Filed:
Feb. 03, 1992
William C Meenan, Waukegan, IL (US);
George D Sullivan, Wilmette, IL (US);
Recycling Sciences International, Inc., Chicago, IL (US);
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.