Organoclay compositions for purifying contaminated liquids...

B - Operations – Transporting – 01 – J

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B01J 20/16 (2006.01) B01D 15/00 (2006.01) B01D 17/02 (2006.01) B01J 20/18 (2006.01) B01J 20/32 (2006.01) C02F 1/28 (2006.01) C02F 1/52 (2006.01) C02F 1/68 (2006.01)

Patent

CA 2382983

The current invention describes organoclay compositions and methods of using them for removing impurities from contaminated liquids. The compositions are formed by contacting an attapulgite, sepiolite, or zeolite clay mineral with an alkylamine base. The method of use involves contacting the organoclay composition with a contaminated liquid, such as oil in water, allowing the organoclay to absorb the contaminants. The organoclay can be in the form of a granular solid for inline filter applications, or it can be a finely divided powder for other applications.

La présente invention a trait à des formulations d'organoargiles et à des méthodes permettant d'utiliser ces formulations pour éliminer les impuretés de liquides contaminés. Ces formulations sont obtenues en mettant en contact une attapulgite, une sépiolite ou une zéolite de minéral d'argile avec une base d'alkylamine. La méthode d'utilisation consiste à mettre en contact la formulation d'organoargile avec le liquide contaminé, par exemple de l'eau contaminée par du pétrole, pour permettre à l'organoargile d'absorber les contaminants. L'organoargile peut se trouver sous la forme de granulés solides lorsqu'elle est destinée à être utilisée dans des filtres en ligne, ou sous la forme de poudre fine pour d'autres applications.

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