Causticization method

Details Causticization method Causticization method

1982-07-28

1984-05-29

Doll, John

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

423175, 423637, C01F 524

Patent

active

044514433

ABSTRACT:
A causticization method including the steps of calcining limestone in the presence of additive means for producing lime of increased lime efficiency relative to the lime that would result from calcining such limestone without the presence of the additive means, lime efficiency being determined on a sodium carbonate solution for which conditions, other than the character of the lime, are fixed, and subsequently feeding the lime of increased lime efficiency into the sodium carbonate solution for producing sodium hydroxide and calcium carbonate from the sodium carbonate.

REFERENCES:
patent: 1552024 (1925-09-01), Alton
patent: 1588253 (1926-06-01), Mathers et al.
patent: 1862176 (1932-06-01), Church et al.
patent: 2282584 (1942-05-01), Hill
Boynton, Chemistry and Technology of Lime and Limestone, Interscience Publishers, (1966), pp. 153, 154.
Tokiti Noda, "Effect of the Addition of Common Salt During the Calcination of Limestone, VII", J. Soc. of Chem. Industry, Japan, Nov. 1937, (pp. 417-418).
Robert C. Young, "Chemistry of Bayer Liquor Causticization", Light Metals, 1982 AIME, Proceedings of 111th Annual Meeting, 1982, (pp. 97-117).

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