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1. (WO2017055504) METHODS FOR BLEACHING AQUEOUS PULPS AND COMPOSITIONS FOR USE IN THESE METHODS

Pub. No.:    WO/2017/055504    International Application No.:    PCT/EP2016/073350
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Fri Sep 30 01:59:59 CEST 2016
IPC: D21C 9/08
D21C 9/10
D21C 9/16
D21H 21/02
D21H 21/32
Applicants: IMERYS MINERALS LIMITED
Inventors: LIKITALO, Mikko
BIZA, Peter
WEBER, Bernhard
Title: METHODS FOR BLEACHING AQUEOUS PULPS AND COMPOSITIONS FOR USE IN THESE METHODS
Abstract:
The present invention relates to compositions for use in an aqueous pulp bleaching process, comprising one or more alkaline earth metal oxides and/or one or more alkaline earth metal hydroxides; one or more alkaline earth metal salts; and optionally, one or more pitch control additives. Methods and kits for the formation of said compositions, are also part of the invention, as is the use of said compositions, methods and kits.