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:
Aug. 27, 1985
Filed:
Mar. 08, 1984
Applicant:
Inventors:
Gyula J Borbely, Copper Cliff, CA;
Eric A Devuyst, Toronto, CA;
Victor A Ettel, Mississauga, CA;
Marcel A Mosoiu, Toronto, CA;
Konstantin J Schitka, Sudbury, CA;
Assignee:
INCO Limited, Toronto, CA;
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210713 ; 210721 ; 210763 ; 210904 ;
Abstract
The cyanide content of waste waters containing the same is removed by treatment with sulfur dioxide or an alkali or alkaline earth metal sulfite or bisulfite in the presence of excess oxygen and a metal catalyst which is perferably copper.