Production of sodium carbonate

Details Production of sodium carbonate Production of sodium carbonate

1975-07-16

1977-05-03

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

23302T, 210 20, 210 39, C01D 712, B01D 1500

Patent

active

040215270

ABSTRACT:
Method of preparing refined, dense soda ash from crude trona by calcining the crude trona to crude sodium carbonate, mixing the crude sodium carbonate with an aqueous solution of soda ash or water to form a substantially saturated crude sodium carbonate solution containing coarse and fine insolubles, clarifying the crude sodium carbonate solution, passing the clarified sodium carbonate solution upwardly through an expanded carbon bed to remove organic impurities, evaporating the carbon-treated sodium carbonate solution to crystallize sodium carbonate monohydrate crystals, separating the sodium carbonate monohydrate crystals and calcining them to dense soda ash.

REFERENCES:
patent: 2346140 (1944-04-01), Pike
patent: 2770524 (1956-11-01), Seaton et al.
patent: 2962348 (1960-11-01), Seglin et al.
patent: 2989369 (1961-01-01), Osborne
patent: 3260567 (1966-07-01), Hellmers et al.
patent: 3455647 (1969-07-01), Gloster
patent: 3528766 (1970-09-01), Coglati, Jr. et al.
patent: 3927175 (1975-12-01), Garofano
patent: 3933977 (1976-01-01), Ilardi et al.

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