Kraft overload recovery process

Details Kraft overload recovery process Kraft overload recovery process

1982-07-22

1984-09-11

Smith, William

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Including recovery of organic by-product

162 301, 162 3011, D21C 1112

Patent

active

044708769

ABSTRACT:
The present invention relates to a kraft overload recovery process for the treatment of kraft black liquor (b.l.) which comprises acidifying the b.l. with an acid comprising sulfuric acid, separating the lignin therefrom, and further treating the residual b.l. for recovery of inorganics contained therein for use as a source of cooking chemical in kraft cooks.

REFERENCES:
patent: 4011129 (1977-03-01), Tomlinson

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