Black liquor concentrating apparatus incorporating black...

Details Black liquor concentrating apparatus incorporating black... Black liquor concentrating apparatus incorporating black...

D - Textiles, Paper

21

C

9/37

D21C 11/10 (2006.01) B01D 1/14 (2006.01)

Patent

CA 1277808

BLACK LIQUOR CONCENTRATING APPARATUS INCORPORATING BLACK LIQUOR COMBUSTION EXHAUST GAS ABSORBING MEANS Abstract of the Disclosure: A black liquor concentrating apparatus is disclosed for concentrating an alkaline waste liquor in wood pulp producing system for producing wood pulp by treating wood chips with alkaline chemicals containing substantially no sulfur compounds, wherein said black liquor concentrating apparatus comprises (1) a primary concentrator for concentra- ting the AP black liquor discharged from said cooking means and washing means, (2) a secondary concentrator for further concentrating the AP black liquor concentrated in said primary concentrator and (3) exhaust gas absorbing means disposed between said primary and secondary concentrators.

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