Method of treating a rare-earth mineral

Details Method of treating a rare-earth mineral Method of treating a rare-earth mineral

1981-06-16

1983-11-29

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204130, C25B 100

Patent

active

044179650

ABSTRACT:
A method of treating a rare-earth mineral or concentrate, e.g. monazite and/or bastnaesite, wherein the rare-earth mineral or concentrate in a pulverized form is mixed with an aqueous solution of electrolyte and subjected to an electrical discharge effected in a region between a pair of electrodes in the presence of the solution.

REFERENCES:
patent: 2167718 (1939-08-01), Harris, Jr. et al.
patent: 2250851 (1941-07-01), Adamoli
patent: 2616843 (1952-11-01), Sheer et al.
patent: 3341437 (1967-09-01), Wood
patent: 3383294 (1968-05-01), Wood
patent: 3619128 (1971-11-01), Angstadt
patent: 3649497 (1972-03-01), Kugler et al.
patent: 3925177 (1975-12-01), Kofoid

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