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. 30, 1979
Filed:
Sep. 19, 1977
Applicant:
Inventors:
Assignee:
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler, Frankfurt am Main, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02B / ; C02C / ;
U.S. Cl.
CPC ...
210 50 ; 210 52 ; 210 53 ; 210 54 ; 210 961 ; 423 43 ; 423604 ;
Abstract
Copper (Cu.sup.++)-ions are separated from an effluent containing complexing agents which are ethylenediamine tetraacetic acid and/or diethylenetriamine pentaacetic acid or their anionic salts, by using an HS-containing triazine compound and Fe.sup.+++ -ions in a quantity at least equal to the amount of complexing agent.