Method for treating feedwater, feedwater treatment...

C - Chemistry – Metallurgy – 02 – F

Patent

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C02F 5/10 (2006.01)

Patent

CA 2594021

A method for treating feedwater is provided. The method includes steps of introducing a treatment composition into a feedwater stream to provide a treated feedwater stream containing scale inhibitor at a concentration of at least about 0.1 ppm, and combining the treated feedwater stream with a detersive composition. The scale inhibitor can include a phosphate scale inhibitor, a carbonate scale inhibitor, or a combination of a phosphate scale inhibitor and a carbonate scale inhibitor. The detersive composition can be provided as a cleaning composition, a rinse agent composition, or a drying agent composition. A treatment composition and an apparatus for treating feedwater are provided.

L'invention concerne une méthode pour traiter de l'eau d'alimentation. Cette méthode comprend les étapes consistant à: introduire une composition de traitement dans un flux d'eau d'alimentation pour obtenir un flux d'eau d'alimentation traitée contenant un inhibiteur de calcaire, à une concentration d'au moins 0,1 ppm environ, et combiner le flux d'eau d'alimentation traitée à une composition détergente. L'inhibiteur de calcaire peut comprendre un inhibiteur de calcaire de phosphate, un inhibiteur de calcaire de carbonate, ou une combinaison d'un inhibiteur de calcaire de phosphate et d'un inhibiteur de calcaire de carbonate. La composition détergente peut se présenter sous forme d'une composition de nettoyage, d'une composition d'agent de rinçage, ou d'une composition d'agent de séchage. Une composition de traitement et un appareil pour traiter de l'eau d'alimentation sont également décrits.

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