Oxidized white liquor production method

Details Oxidized white liquor production method Oxidized white liquor production method

D - Textiles, Paper

21

C

D21C 11/02 (2006.01) D21C 11/00 (2006.01)

Patent

CA 2128053

A method of producing oxidized white liquor from white liquor in which sodium sulfide is oxidized to sodium sulfate. In accordance with the method, an oxygen containing gas is contacted with the white liquor at a temperature of at least 110°C and such that the total pressure of oxygen and water vapor is no less than 9.2 atmospheres during the contacting.

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