Process for the purification of industrial effluents
AssigneeCiba-Geigy Corporation
InventorsJaroslav Haase, Peter Liechti, Hans Wegmuller, Rudolf F. Wurster, Quentin Bowes
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Abstract
A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified, cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula --O--CH.sub.2 --N< in which the nitrogen belongs to an amide group of the cationic constituent and the oxygen is bonded to the cellulose part.
Claims8
A basic methylolamide compound of the formula ##STR33## or a salt thereof, in which R.sub.1 and R.sub.2 independently of one another denote hydrogen, lower alkyl which is unsubstituted or substituted by halogen, hydroxyl, lower alkoxy or cyano, or cycloalkyl, benzyl or the group of the formula ##STR34## Q denotes an alkylene- or alkyl-substituted alkylene chain with 2 to 8 carbon atoms and Y denotes hydrogen, lower alkyl or --CH.sub.2 OH.
Dependencies are inferred from the claim text.