Defoamer composition and method of using the same

Details Defoamer composition and method of using the same Defoamer composition and method of using the same

D - Textiles, Paper

21

C

D21C 3/28 (2006.01) B01D 19/04 (2006.01)

Patent

CA 2210050

A defoamer composition made from the reaction product of an epoxide containing composition selected from epoxide fatty acids, epoxide vegetable oils and mixtures thereof and at least one secondary compound selected from the group consisting of fatty acids and alkoxylated derivatives thereof, alkoxylated polyols, alcohols, alkoxylated alcohols, alkylphenols, alkoxylated alkylphenols, alkylamides, alkoxylated alkylamides, acetylenic glycols, alkoxylated acetylenic glycols, polybasic acids, alkylene oxides, organo silicones and polymers thereof, and methods of using the same especially for defoaming black liquor produced in the pulp and paper industry.

Composition antimousse obtenue à partir du produit de réaction d'une composition contenant un époxyde, choisie parmi des acides gras époxydiques, des huiles végétales époxydiques et leurs mélanges, ainsi qu'au moins un composé secondaire, choisi dans le groupe constitué d'acides gras et de leurs dérivés alcoxylés, de polyols alcoxylés, d'alcools, d'alcools alcoxylés, d'alkylphénols, d'alkylphénols alcoxylés, d'alkylamides, d'alkylamides alcoxylatés, de glycols acétyléniques, de glycols alcoxylés acétyléniques, d'acides polybasiques, d'oxydes d'alkylène, d'organosilicones et de leurs polymères; méthodes pour utiliser ces produits, particulièrement comme antimousses dans les liqueurs noires du secteur des pâtes et papiers.

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