Process for the removal of the slag portion from molten mixtures

Details Process for the removal of the slag portion from molten mixtures Process for the removal of the slag portion from molten mixtures

1983-03-01

1985-05-07

Fisher, Richard V.

Chemistry: physical processes

Physical processes

75 24, 210773, 210774, 423348, C01B 3302

Patent

active

045156000

ABSTRACT:
The slag portion can easily be removed from molten mixtures of slag and silicon by subjecting such mixtures to a hydrostatic pressure difference with respect to a space separated from them by one or more separating walls of graphite or silicon carbide, preferably provided with circular to slot-shaped apertures. Such separating walls are permeable to both the slag and silicon when present alone, but permeable only to the slag when a molten mixture of slag and silicon is present.

REFERENCES:
patent: 2355980 (1944-08-01), Yerkes
patent: 4113241 (1978-09-01), Dore
patent: 4388286 (1983-06-01), Kapur et al.
patent: 4394271 (1983-07-01), Groteke
patent: 4398931 (1983-08-01), Shevlin
patent: 4457903 (1984-07-01), Dietl et al.

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