Method for dispersing two phases in a solvent extraction process and a pump mixer for realizing the method

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United States of America Patent

PATENT NO 4747694
SERIAL NO

06930727

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a method for dispersing the two liquid phases of a solvent extraction process well together, for controlling the desired type of dispersion and for raising the created dispersion to a level essentially higher than the liquid surface in the mixing tank. In the apparatus of the invention, to the circulation cylinder (6) of the mixer there is connected the heavy phase return conduit (27) and the light phase return conduit (29) entering from the settler of the same extraction step. In the top part of the mixer, coaxially with the turbine pump (9), there is installed the dispersion pump (12) where the dispersion rises to above the liquid surface (8) of the mixer through 2-24 rising pipes (15). The top ends of the rising pipes (15) are connected to the circular pipe (18), wherefrom the dispersion flow is conducted to the next stage through the collecting trough (22).

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Patent Owner(s)

Patent OwnerAddress
OUTOKUMPU OY A CORP OF FINLANDLANSITUULENTIE 7 A 02100 ESPOO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hultholm, Stig-Erik Pori, FI 39 404
Lilja, Launo L Pori, FI 35 376
Makitalo, Valto J Pori, FI 30 351
Nyman, Bror G Ulvila, FI 21 306

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