Composition for inhibiting calcium salt scale

Details Composition for inhibiting calcium salt scale Composition for inhibiting calcium salt scale

2005-03-22

2005-03-22

Fortuna, José A. (Department: 1731)

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

C162S029000, C162S030110, C162S048000, C252S175000, C252S181000

Reexamination Certificate

active

06869503

ABSTRACT:
Compositions and method of improving inhibition of calcium salt scale formation under the conditions found in chemical pulp processes in which an effective amount of selected phosphonates or phosphonate blends is admixed with the black liquor composition recovered from the digester in a chemical pulping process. The compositions and method are especially well suited for use in the Kraft pulping process.

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