Method for preventing scale formation
AssigneeKemira Oyj
InventorsClayton Campbell, James Atkinson, Arkadiusz Zaniewski, Marko Kolari, Jaakko Ekman
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Abstract
The present invention provides a method for preventing or decreasing scale formation on process surfaces in manufacturing process of paper, board or the like, in which method performic acid is used as an antiscaling agent.
Claims20
A method for preventing or decreasing scale formation on process surfaces in manufacturing process of paper or board, wherein pH of the process water is >7, said method comprising adding performic acid as an antiscaling agent to process water of the paper or board manufacturing process, whereby the pH value of the process water changes less than 1 pH unit after the addition of performic acid.
Dependencies are inferred from the claim text.