Solutia Incorporated

Thermophos Trading Gmbh

Dequest Ag

Jacob Owen Thompson

Sheldon Phillip Verrett

Steven John Severtson

Jeremy E Loy

Wei Li

Ulrike Waltraud Tschimer

Ulrike Waltraud Tschirner

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.

Method for inhibiting calcium salt scale

Compositions and method for 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 aqueous digester composition in a chemical pulping process during the digestion stage. The compositions and method are especially well suited for use in the Kraft pulping process.

Compositions 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 compound 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.

Method for the production of improved pulp

Composition for the production of improved pulp

Composition for inhibiting calcium salt scale

Growing community of inventors

St. Louis, MO, United States of America

Jacob Owen Thompson