Process for deinking wastepaper

Details Process for deinking wastepaper Process for deinking wastepaper

D - Textiles, Paper

21

C

D21C 5/02 (2006.01) C01B 39/44 (2006.01)

Patent

CA 2067446

A process for drinking wastepaper with an aqueous system, which comprises: (a) contacting wastepaper with an aqueous system which contains an agent selected from the group consisting of: (i) a mixture of one or more guaternary ammonium salts and one or more smectite-type clays; and (ii) one or more organically modified smectite-type clays; and (b) recovering deinked paper pulp from the aqueous system.

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