D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
204/81
D21C 9/10 (2006.01)
Patent
CA 1259948
Abstract of the Disclosure Reductive bleaching of lignin containing pulps employing polydentate ligand complexes of dipositive vanadium, chromium and titanium. High brightness pulps with good reversion stability are obtained. The process is essentially pollution free as the reduced complexes can be repeatedly regenerated electrochemically.
497737
Hull Michael N.
Yasnovsky Vacheslav M.
Gowling Lafleur Henderson Llp
International Paper Company
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