Patents by Inventor Timo Saarenpää

Timo Saarenpää has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System for decreasing amount of organic solution in the liquid-liquid extraction process
    Patent number: 8435442
    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.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: May 7, 2013
    Assignee: Outotec Oyj
    Inventors: Timo Saarenpää, Hannu Laitala, Pertti Pekkala
  • SYSTEM FOR DECREASING AMOUNT OF ORGANIC SOLUTION IN THE LIQUID-LIQUID EXTRACTION PROCESS
    Publication number: 20110068520
    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.
    Type: Application
    Filed: May 12, 2009
    Publication date: March 24, 2011
    Applicant: Outotec Oyj
    Inventors: Timo Saarenpää, Hannu Laitala, Pertti Pekkala
  • Method and apparatus for controllably conducting a solution, obtained from liquid-liquid extraction of two solutions and mixed into dispersion, to a wide settler
    Patent number: 6432370
    Abstract: In a method according to the invention, a dispersion coming from a mixer part is conducted from downwards to the liquid part of the settler, into the middle part of the feed end, wherefrom it is set to be distributed to inside the settler part, in a closed channel-like space located in the immediate vicinity of the settler along the whole width of the settler and the flow therefrom mainly above the channel-like part towards the rear end of the settler. The method according to the invention is realized by means of an apparatus where an uptake shaft extending from the dispersion mixing tank to the settler opens into the feed end of the settler, from where there are further directed distribution channels towards the settler side edges. The distribution channels are placed in the bottom part of the settler.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: August 13, 2002
    Assignee: Outokumpu Oyj
    Inventors: Bror Nyman, Launo Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto, Petri Taipale, Timo Saarenpää