Process for recovering cellulose ester fines

Details Process for recovering cellulose ester fines Process for recovering cellulose ester fines

1980-07-28

1981-06-02

Therkorn, Ernest G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 58, 536 76, 210703, C08B 326

Patent

active

042712912

ABSTRACT:
Process for recovering entrained cellulose ester fines from scrubber-coolant water by forming a wet foam containing the fines, floating the wet foam upwardly in a vertically disposed foam flotation column and outwardly along a horizontal straight-line path from which liquid from the wet foam is drained and the fines are introduced in the form of a drier foam into a vessel for subsequent dissolving of the fines, with the horizontal straight-line path being pitched downardly from the horizontal plane.

REFERENCES:
patent: 1176428 (1916-03-01), Callow
patent: 1717223 (1929-06-01), Karlstrom
patent: 2162379 (1939-06-01), Dole
patent: 2214943 (1940-09-01), Tinsley
patent: 3870635 (1975-03-01), Pounder
Concentration et Separation des Molecules et des Particules par la Methode des Mousses Dogivon, Revue Scientific, vol. 79, 1941 613-619.

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