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:
Apr. 27, 2010
Filed:
Jun. 09, 2005
Pertti Pekkala, Espoo, FI;
Raimo Kuusisto, Espoo, FI;
Juhani Lyyra, Espoo, FI;
Bror Nyman, Ulvila, FI;
Eero Ekman, Pori, FI;
Pertti Pekkala, Espoo, FI;
Raimo Kuusisto, Espoo, FI;
Juhani Lyyra, Espoo, FI;
Bror Nyman, Ulvila, FI;
Eero Ekman, Pori, FI;
Outotec Oyj, Espoo, FI;
Abstract
The invention relates to a method and apparatus with which the aqueous solution from liquid-liquid extraction in the hydrometallurgical recovery of metals is purified from droplets of organic extraction solution. The aqueous solution is treated in a settling tank, where it is made to flow through a flow channel area with a reduced cross-section that extends over the width of the tank at least at one point. The flow channels are located in the lower section of the droplet coalescer according to the invention, with the upper section of the device being mainly solid.