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. 25, 1977
Filed:
Jun. 29, 1976
Applicant:
Inventors:
Wolfgang Rupilius, Dusseldorf, DT;
Werner Stein, Dusseldorf, DT;
Assignee:
Henkel Kommanditgesellschaft auf Aktien, Dusseldorf, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210 21 ; 423 24 ;
Abstract
A process for the extraction of heavy metal ions capable of forming complexes with amines from dilute aqueous heavy metal salt solutions consisting essentially of the steps of