C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/41
C08G 14/12 (2006.01)
Patent
CA 1106529
ABSTRACT OF THE DISCLOSURE Described herein is a process for the preparation of high polymeric dispersants suitable for effecting the separation of clays and other materials containing active hydroxyl groups on the surface of ores and minerals wherein an alkali metal sulphite or metabisulphite and a lower aliphatic aldehyde are reacted by heating with a phenol, and the reaction product of this is in turn reacted with a water- soluble aliphatic aldehyde such as formaldehyde.
294603
Chattaraj Banshidhar
Dutta Samarendra N.
Moyalan Johnson P.
Saikia Torun C.
Thyagarajan Gopalakrishna
Council Of Scientific And Industrial Research
Gowling Lafleur Henderson Llp
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