Process for extracting uranium from phosphoric acids by means of

Details Process for extracting uranium from phosphoric acids by means of Process for extracting uranium from phosphoric acids by means of

1983-07-07

1985-04-09

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 8, C01G 4300

Patent

active

045101221

ABSTRACT:
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 T.sub.1 to an intense mechanical shearing action corresponding to a shearing coefficient of at least 5000 seconds.sup.-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 T.sub.2, the sum of the times required for carrying out the two steps being at most 20 minutes.

REFERENCES:
patent: 4154698 (1979-05-01), Doft
patent: 4180545 (1979-12-01), McCullough et al.
patent: 4243637 (1981-01-01), Bradford et al.
patent: 4282188 (1981-08-01), Demarthe et al.
patent: 4287071 (1981-09-01), DiGiacomo
patent: 4292278 (1981-09-01), Elikan et al.
patent: 4293529 (1981-10-01), Reese et al.
patent: 4311676 (1982-01-01), Demarthe et al.

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