Recovery process and apparatus for alkali metal-containing spent

Details Recovery process and apparatus for alkali metal-containing spent Recovery process and apparatus for alkali metal-containing spent

1978-02-06

1979-05-15

Bashore, S. Leon

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

422185, 110247, 162 36, 162240, 423182, 423207, 423DIG3, D21C 1102, D21C 1112

Patent

active

041546431

ABSTRACT:
An alkali metal-containing spent liquor is treated to recover the alkali metal content for reuse without the need for recycling furnace ash and forming solid pellets therefrom. A mixture of aluminum hydrate and alkali metal-containing waste liquor is directed through a heated furnace and dried to form granules of the aluminum hydrate and waste liquor solids, and the organic content of the granules are combusted and reacted to form granular alkali metal aluminate furnace ash. The granular furnace ash is removed from the furnace and treated to recover the alkali metal and to produce aluminum hydrate for reuse in the process.

REFERENCES:
patent: 2314112 (1943-03-01), Tuttle
patent: 2433498 (1947-12-01), Whitford
patent: 2792350 (1907-05-01), Bradley et al.
patent: 2849292 (1958-08-01), Shick
patent: 2862887 (1958-12-01), Boyer
patent: 2864669 (1958-12-01), Ahlborg et al.
patent: 3061408 (1962-10-01), Lurie
patent: 3787283 (1974-01-01), Sheeley et al.
patent: 4035228 (1977-07-01), Sheeley et al.

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