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:
Oct. 23, 1984
Filed:
Sep. 08, 1983
Matti E Honkaniemi, Tornio, FI;
Veikko A Juntunen, Tornio, FI;
Veli J Keinanen, Kokkokangas, FI;
Urpo J Mansikka, Kokkokangas, FI;
Outokumpu Oy, Helsinki, FI;
Abstract
In the invention, cyanide-bearing gas scrubbing waters, which are produced in metallurgical processes, are cleaned. The same scrubbing water is circulated through all gas scrubbers (1, 3) essentially connected to the metallurgical process. The solid substance which is thus acquired in the scrubbing water is separated from the scrubbing water in a clarifier (4), wherefrom the extracted solid substance is conducted as pulp into the grinding circle of the process. The cyanide-bearing scrubbing water is further conducted into the cooling (9) of the material received from the metallurgical process smelting furnace. In the cooling (b 9), the major part of the cyanide is evaporized due to the rise in temperature.