Process for the manufacture of anhydrous sodium carbonate

Details Process for the manufacture of anhydrous sodium carbonate Process for the manufacture of anhydrous sodium carbonate

1995-07-17

1997-09-09

Langel, Wayne

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

4232062, 423423, C01D 735

Patent

active

056653271

ABSTRACT:
Process for the manufacture of anhydrous sodium carbonate, according to which a drier kiln including a rotary drum (1) is used, sodium carbonate monohydrate is introduced into an upstream region (4) of the drum, anhydrous sodium carbonate is collected in a downstream region (6) of the drum and a fraction of the anhydrous sodium carbonate is recycled from the downstream region into the upstream region, the recycling of the anhydrous sodium carbonate being performed inside the drum.

REFERENCES:
patent: 2666686 (1954-01-01), Miller et al.
patent: 2851792 (1958-09-01), Steimel et al.
patent: 3336104 (1967-08-01), Miller
patent: 3887689 (1975-06-01), Carding et al.
John Wiley & Sons: "Encyclopedia of Chemical Technology" vol. 1, 1978, pp. 875-876.
Te-Pang Hou: "Manufacture of Soda". Hafner Publishing Company, 1969, p. 221 .

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