Chlorine-Free Reagents for Repulping Alkaline-Curing Wet-Strength Broke, 1990 Papermakers Conference Proceedings

H. H. Espy, G. W. Geist--Persulfate salts appear to be feasible substitutes for hypchlorite in repulping broke. They should avoid hypochlorite’s potential for generating organic chlorides in effluents. Persulfates are effective in broke made with polyamide- or polyamine-epichlorohydrin wet-strength resins. Preferred temperature and pH conditions are presented. If washing is a limitation in handling reclaimed pulp, persulfate residues may interfere less than residual hypochlorite with the development of wet strength in recycled broke.

Chlorine-Free Reagents for Repulping Alkaline-Curing Wet-Str
Chlorine-Free Reagents for Repulping Alkaline-Curing Wet-Strength Broke, 1990 Papermakers Conference Proceedings
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