EP 0100744 B1 19851218 - PROCESS FOR EXTRACTING URANIUM FROM PHOSPHORIC ACIDS USING ALKYLPYROPHOSPHORIC ACIDS
Title (en)
PROCESS FOR EXTRACTING URANIUM FROM PHOSPHORIC ACIDS USING ALKYLPYROPHOSPHORIC ACIDS
Publication
Application
Priority
FR 8213820 A 19820730
Abstract (en)
[origin: ES8404419A1] A process for extracting the uranium contained in phosphoric acid solutions by means of an extracting agent comprising an alkylpyrophosphoric acid, which comprises bringing into contact, in an agitated condition, the inorganic, phosphoric acid phase and an organic phase containing the extracting agent, thereby producing an emulsion, which is characterized in that, in an extraction unit comprising n stages in a cascade configuration, for each extraction stage, the emulsion is produced in a first step by simultaneously subjecting the two phases for a period of time T1 to an intense mechanical shearing action corresponding to a shearing coefficient of at least 5000 seconds-1 in order to multiply the contact surfaces for contact between said two phases, and then said emulsion in a second step is abruptly broke in a time T2, the sum of the times required for carrying out the two steps being at most 20 minutes.
IPC 1-7
IPC 8 full level
C22B 60/02 (2006.01)
CPC (source: EP KR US)
C22B 60/02 (2013.01 - KR); C22B 60/026 (2013.01 - EP US)
Designated contracting state (EPC)
BE GB IT NL SE
DOCDB simple family (publication)
EP 0100744 A1 19840215; EP 0100744 B1 19851218; BR 8304067 A 19840307; CA 1209808 A 19860819; ES 524587 A0 19840501; ES 8404419 A1 19840501; FI 832749 A0 19830729; FI 832749 A 19840131; FR 2531102 A1 19840203; FR 2531102 B1 19860814; GR 78860 B 19841002; IL 69342 A 19860731; JO 1260 B1 19850420; KR 840005414 A 19841112; KR 870002187 B1 19871228; MA 19852 A1 19840401; OA 07505 A 19850331; PH 19136 A 19860110; PT 77136 A 19830801; PT 77136 B 19860124; US 4510122 A 19850409; YU 157783 A 19860430
DOCDB simple family (application)
EP 83420127 A 19830720; BR 8304067 A 19830729; CA 433538 A 19830729; ES 524587 A 19830729; FI 832749 A 19830729; FR 8213820 A 19820730; GR 830172027 A 19830726; IL 6934283 A 19830726; JO P19831260 A 19830730; KR 830003380 A 19830722; MA 20073 A 19830725; OA 58072 A 19830727; PH 29192 A 19830708; PT 7713683 A 19830729; US 51147883 A 19830707; YU 157783 A 19830725