PROCESS FOR TREATING BLACK LIQUORS RESULTING FROM PRODUCTION OF SULFATE CELLULOSE Russian patent published in 1995 - IPC

Abstract RU 2032011 C1

FIELD: paper industry. SUBSTANCE: on obtaining green liquor, industrial soda is recovered therefrom and it is then adjusted till white liquor is formed. The adjustment is carried out by introducing an additional amount of sodium sulfide obtained by burning sodium sulfate. EFFECT: improved treatment process. 1 dwg

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RU 2 032 011 C1

Authors

Skidin N.T.

Musaev R.M.

Smirnov V.A.

Dates

1995-03-27—Published

1991-09-16—Filed