The Potential Impact of Unoxidized and Thiosulphate Oxidized White Liquor Use On Oxygen Delignification Performance, 2015 PEERS Conference
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Unoxidized and oxidized white liquor are often used as the alkali source for an oxygen delignification stage. The average amount required is dependent upon the NaOH makeup requirement of the mill. Some mills use 100% white liquor in the oxygen stage and add makeup caustic elsewhere. Other mills will vary the amount of white liquor based on liquor inventory. This paper considers the potential impact of using white liquor (unoxidized and oxidized) on the performance of an oxygen delignification stage.