C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/40 (2006.01) B01D 17/04 (2006.01) C02F 1/00 (2006.01) C02F 1/24 (2006.01) C02F 1/52 (2006.01)
Patent
CA 2613390
A method of clarifying oily waste water comprising adding to the waste water an effective clarifying amount of one or more demulsifiers selected from the group consisting of dendritic polyamines, dendritic polyamidoamines and hyperbranched polyethyleneimines and the reaction products thereof with gluconolactone, alkylene oxides, salts of S-chloro~-hydroxypropanesulfonic acid, alkyl halides, benzyl halides and dialkyl sulfates.
L'invention concerne un procédé permettant de clarifier des eaux huileuses et consistant à ajouter aux eaux huileuses une quantité clarifiante suffisante d'un ou plusieurs désémulsionneurs choisis dans le groupe constitué de polyamines dendritiques, de polyamidoamines dendritiques et de polyéthylèneimines hyperramifiés et leurs produits de réaction avec le gluconolactone, les oxydes d'alkylène, les sels d'acide S-chloro-hydroxypropanesulfonique, d'halogénures d'alkyle, d'halogénures de benzyle et de sulfates de dialkyle.
Clever Hester A.
Howdeshell Michael J.
Manek Maria B.
Stephenson William K.
Wells Kirk E.
Borden Ladner Gervais Llp
Nalco Company
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