METHOD AND AQUEOUS COMPOSITION FOR THE PRODUCTION OF IMPROVED PULP

Composition and method for improving properties of pulp produced or reducing the digester cycle time in alkaline chemical pulping processes in which an effective amount of at least one selected phosphonate or carboxylate compoun d or mixtures thereof is admixed with the alkaline aqueous mixture in t...

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Bibliographische Detailangaben
Hauptverfasser: THOMPSON, JACOB OWEN, LI, WEI, TSCHIRNER, ULRIKE WALTRAUD, VERRETT, SHELDON PHILLIP
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:Composition and method for improving properties of pulp produced or reducing the digester cycle time in alkaline chemical pulping processes in which an effective amount of at least one selected phosphonate or carboxylate compoun d or mixtures thereof is admixed with the alkaline aqueous mixture in the digester of the chemical pulping process. The compositions and method are especially well suited for use in the Kraft pulping process.