C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/00 (2006.01) C01F 7/06 (2006.01) C01F 7/47 (2006.01) C01G 23/053 (2006.01) C22B 3/26 (2006.01)
Patent
CA 2444080
The invention relates to methods and a device for the removal of non-water soluble substances from solutions of aqueous metal extracts, by addition of at least one water-soluble cationic polyelectrolyte, containing a diallylaminoalkyl(meth)acrylamide, neutralised or quaternised with mineral acid and subsequently polymerised, preferably dimethylaminopropylacrylamide.
La présente invention concerne un procédé et un dispositif permettant d'éliminer des substances non solubles dans l'eau contenues dans des solutions de préparations métalliques aqueuses par ajout d'au moins un polyélectrolyte cationique soluble dans l'eau qui contient un diallylaminoalkyl(méth)acrylamide, de préférence un diméthylaminopropylacrylamide, qui est neutralisé ou quaternisé par de l'acide minérale puis polymérisé.
Ashland Licensing And Intellectual Property Llc
Gowling Lafleur Henderson Llp
Stockhausen Gmbh & Co. Kg
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