Soda ash production

Details Soda ash production Soda ash production

1990-08-29

1991-08-27

Morris, Theodore

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

23302T, C22B 2610

Patent

active

050431498

ABSTRACT:
Process for disposing of insoluble tailings that remain when solubilizing uncalcined or calcined trona in the process of producing soda ash, in which the tailings are slurried with water or waste solutions of sodium carbonate and/or sodium bicarbonate, pumping the slurry into a well connected to an underground mined-out cavity with sufficient pressure to prevent build-up of tailings from plugging the bottom of the well opening, dispersing and settling said tailings in the cavity, removing a liquor from said cavity whose concentration of sodium carbonate and/or sodium bicarbonate has been increased and recovering such enriched liquor for use in the manufacture of sodium-containing chemicals such as soda ash.

REFERENCES:
patent: 3050290 (1962-08-01), Caldwell et al.
patent: 3655331 (1972-04-01), Seglin et al.
patent: 3792902 (1974-02-01), Towell et al.
patent: 4039618 (1977-08-01), Gancy et al.
patent: 4044097 (1977-08-01), Gancy et al.
patent: 4344650 (1982-08-01), Pinsky et al.
patent: 4401635 (1983-08-01), Frint

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