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:
Jun. 24, 2008
Filed:
May. 15, 2003
Bror Nyman, Ulvila, FI;
Stig-erik Hultholm, Pori, FI;
Eero Ekman, Pori, FI;
Launo Lilja, Pori, FI;
Juhani Lyyra, Espoo, FI;
Pertti Pekkala, Espoo, FI;
Raimo Kuusisto, Espoo, FI;
Bror Nyman, Ulvila, FI;
Stig-Erik Hultholm, Pori, FI;
Eero Ekman, Pori, FI;
Launo Lilja, Pori, FI;
Juhani Lyyra, Espoo, FI;
Pertti Pekkala, Espoo, FI;
Raimo Kuusisto, Espoo, FI;
Outotec Oyj, Espoo, FI;
Abstract
The invention relates to a method for controlling and compressing a dispersion formed in the mixing stage of liquid-liquid extraction. The compression of the dispersion is achieved by reducing the cross-section of the separation section in the direction of flow and by equipping the separation section with a dispersion-damming member. The equipment according to the invention thus comprises a settler, which is essentially trapezoid in shape so that its cross-section is wider at the feed end of the settler and gets smaller towards the rear end of the settler, from whence the separated solutions are discharged from the settler, and the settler is equipped with at least one device to dam up the dispersion. In particular the method and equipment relate to the extraction process used in the recovery of metals.