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:
May. 07, 2013
Filed:
May. 12, 2009
Applicants:
Timo Saarenpää, Santiago, CL;
Hannu Laitala, Espoo, FI;
Pertti Pekkala, Espoo, FI;
Inventors:
Assignee:
Outotec Oyj, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a system used in the liquid-liquid extraction of metals, enabling the amount of organic solution required in the various stages of extraction to be significantly reduced. In accordance with the invention, the settler unit of one step belonging to an extraction system is selected to function also as the organic solution storage and pumping tank.