Method for inhibiting calcium salt scale

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 pul...

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Bibliographische Detailangaben
Hauptverfasser: SHELDON, PHILLIP VERRETT, JACOB, OWEN THOMPSON, JEREMY, E. LOY, STEVEN, JOHN SEVERTSON
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung: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.