método para inibição da formação de escalas de sal de cálcio em processos de formação de polpa com produtos quìmicos

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...

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Bibliographische Detailangaben
Hauptverfasser:	STEVEN JOHN SEVERSON, JACOB OWEN THOMPSON, SHELDON PHILLIP VERRETT, JEREMY E. LOY
Format:	Patent
Sprache:	por
Schlagworte:	ADHESIVES APPARATUS THEREFOR CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PAPER-MAKING POLISHES PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	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.