US 2017/0198435 A1Published application

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.

Claims15

Dependent claims

Method for preventing or decreasing scale formation on process surfaces in manufacturing process of paper, board or the like characterized in using performic acid as an antiscaling agent.

Dependencies are inferred from the claim text.

Facts

Application: 15/326,543Filed 10 Jul 2015
Priority: FI 2014567415 Jul 2014
Published: 13 Jul 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

D21C 3/226
Other features of pulping processes: use of compounds avoiding scale formation
D21H 17/65
Inorganic compounds: acid compounds
D21H 17/675
Water-insoluble compounds, e.g. fillers, pigments: oxides, hydroxides or carbonates
D21H 21/02
Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised…:…

Family

US 10,392,746 B2Related patent
US 2017/0198435 A1This patent

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