EXTRACTION UNIT "LIQUID-LIQUID", MULTI-STAGE EXTRACTION DEVICE "LIQUID-LIQUID" WHICH USES THIS UNIT, AND SYSTEM OF MULTI-STAGE CONTINUOUS EXTRACTION FOR RARE-EARTH ELEMENTS Russian patent published in 2017 - IPC C22B59/00 C22B3/26 B01D11/04 

Abstract RU 2621550 C2

FIELD: technological processes.

SUBSTANCE: extraction unit "liquid-liquid" includes extraction/separation vessel, an aqueous phase in the form of bubbles is fitted from the upper inlet in one side wall, and an organic phase in the form of bubbles is fitted from the lower inlet in the said side wall. Organic phase which moves upwards is contacted with aqueous phas which moves downwards. After contacting, organic phase is discharged through the upper outletmade in the opposed side wall, and aqueous phase is discharged through the lower outlet maid in the said opposite side wall.

EFFECT: reduced device footprint, reduced liquid used and resulting reduced cost.

7 cl, 6 dwg, 2 ex

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RU 2 621 550 C2

Authors

Sugakhara, Khiroto

Minova, Takekhisa

Dates

2017-06-06Published

2013-01-10Filed