Method of preventing or reducing aluminosilicate scale in industrial processes

Method of preventing or reducing aluminosilicate scale in industrial processes

METHOD OF PREVENTING OR REDUCING ALUMINOSILICATE SCALE IN INDUSTRIAL PROCESSES Abstract Materials and a method are provided whereby polymers with least 0.5 mole % of the pendant group or end group containing - Si (OR")3 (where R" is H, an alkyl group, Na, K, or NH4) are used to control alu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHEN, HAUNN-LIN TONY, TAYLOR, MATTHEW L, SPITZER, DONALD P, HEITNER, HOWARD I
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:METHOD OF PREVENTING OR REDUCING ALUMINOSILICATE SCALE IN INDUSTRIAL PROCESSES Abstract Materials and a method are provided whereby polymers with least 0.5 mole % of the pendant group or end group containing - Si (OR")3 (where R" is H, an alkyl group, Na, K, or NH4) are used to control aluminosilicate scaling in an industrial process having an alkaline process stream such as a pulping mill process stream. When materials of the present 10 invention are added to the alkaline process stream, they reduce and even completely prevent formation of aluminosilicate scale on equipment surfaces such as evaporator walls and heating surfaces. The present materials are effective at treatment concentrations that make them economically practical.