Process for the treatment of langbeinite and anhydrite containin

Details Process for the treatment of langbeinite and anhydrite containin Process for the treatment of langbeinite and anhydrite containin

1994-12-20

1996-10-08

Chiesa, Richard L.

Gas separation: processes

Electric or electrostatic field

With addition of solid, gas, or vapor

95 60, 96 17, 96 52, 96 74, 2091272, 2091274, B03C 330

Patent

active

055627552

ABSTRACT:
A process for after-purifying a kieserite mixture pre-concentrated electrostatically across a number of stages is characterized in that the outside air used in the after purification stage is adjusted by dehumidification in a conventional dehumidification plant to an absolute moisture of 4.5 g/m.sup.3, and the kieserite mixture to be separated by triboelectrically charging with said air at a temperature of below 40.degree. C.

REFERENCES:
patent: 3493109 (1970-02-01), Carta et al.
patent: 3802556 (1974-04-01), Fricke et al.
patent: 4557827 (1985-12-01), Fricke et al.
patent: 4767506 (1988-08-01), Fricke
patent: 5251762 (1993-10-01), Taylor et al.

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