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:
Sep. 16, 1986
Filed:
Oct. 30, 1985
Applicant:
Inventors:
Jean-Marc Lalancette, Sherbrooke, CA;
Hugues Menard, Sherbrooke, CA;
Assignee:
Ceram-Sna Inc., Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
423338 ; 423245 ; 423437 ; 423659 ; 502 38 ; 502410 ;
Abstract
The invention relates to a process for degrading polycyclic aromatic hydrocarbons adsorbed over chrysotile asbestos fibers which comprises oxidizing in the presence of moisture with ozone a mass of polycyclic aromatic hydrocarbons adsorbed on chrysotile asbestos fibers, whereby the hydrocarbons are degraded mainly to carbon dioxide and substantially pure chrysotile asbestos is recovered.