Use of grafted cellulose for purifying water

Details Use of grafted cellulose for purifying water Use of grafted cellulose for purifying water

C - Chemistry, Metallurgy

02

F

362/13

C02F 3/08 (2006.01) B01J 41/04 (2006.01) B01J 47/12 (2006.01) C02F 1/28 (2006.01) C02F 1/42 (2006.01) C02F 1/58 (2006.01)

Patent

CA 2034077

IN THE CANADIAN PATIENT AND TRADEMARK OFFICE . . PATENT APPLICATION entitled: Use of grafted cellulose for purifying water Applicant: INSTITUT TEXTILE DE FRANCE Centre Technique Industrial 280, avenue Briand - BP 141 92223 BAGNEUX CEDEX (FRANCE) ABSTRACT OF THE DISCLOSURE . The invention relates to the use of grafted celluloses, in fibrous form, particularly paper, non-woven web, flock, yarn, woven fabric, comprising quaternary ammonium functions, for eliminating humic substances and nitrates contained in natural water or industrial sewage. The grafted cellulose is for example obtained by radical grafting with the aid of a non-saturated monomer with quaternary ammonium function, particularly quaternized diethyl-amino-ethyl methacrylate. Its capacity is greater than or equal to 0.2meq/g.

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