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:
Jan. 27, 1987
Filed:
Sep. 18, 1985
Jean-Marc Lalancette, Sherbrooke, CA;
Germain Belanger, St-Germain de Grantham, CA;
Hydro-Quebec, Montreal, CA;
Abstract
The invention relates to an improved process for the dehalogenation of polyhalogenated hydrocarbons from a fluid containing same wherein the dehalogenation is carried out through the reaction of sodium or potassium, which comprises contacting a dispersion of sodium or potassium over the surface of a particulate inert material having a density of at least 2.0 with a polyhalogenated hydrocarbon contaminated hydrocarbon oil, said mixture being in an inert atmosphere, heated to a temperature of at least 100.degree. C. and under constant agitation whereby the coating of sodium or potassium over the surface of the particulate inert material reacts with the halogen of the polyhalogenated hydrocarbon to form the corresponding sodium or potassium halide which is constantly removed from the active surface by abrasion and recovering the liquid, hydrocarbon oil substantially devoided of polyhalogenated hydrocarbon; and if desired an excess of sodium or potassium can be added to remove the remaining trace of halogen whereby the excess of sodium or potassium can be used for treating the next batch of contaminated fluid.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile