Starch/cationic polymer combinations as coagulants for the...

Details Starch/cationic polymer combinations as coagulants for the... Starch/cationic polymer combinations as coagulants for the...

C - Chemistry, Metallurgy

02

F

C02F 1/56 (2006.01) B01D 21/01 (2006.01) C02F 11/14 (2006.01)

Patent

CA 2248479

A method for dewatering coal tailings, clean coal products and mineral slurries with an effective coagulating amount of a combination of a cationic polymer and a starch. A preferred cationic polymer is poly(dimethylaminoethylacrylate methyl chloride quaternary salt) and preferred starches are unmodified.

Divulgation d'une méthode pour assécher des résidus de charbon, des produits de charbon propres et des boues minérales, à l'aide d'une quantité coagulante efficace d'une combinaison d'un polymère cationique et d'un amidon. Le polymère cationique est, de préférence, un poly(chlorure quaternaire d'acétate de triméthylaminoéthyle), et les amidons préférés sont des amidons non modifiés.

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