Treatment of cellulosic material and compositions for use in...

Details Treatment of cellulosic material and compositions for use in... Treatment of cellulosic material and compositions for use in...

D - Textiles, Paper

21

C

D21C 5/02 (2006.01)

Patent

CA 2118304

A process of de-inking waste paper can be operated under conditions using a simple combination of chemicals to resume waste liquor that is substantially environmentally friendly. The process comprises forming a pulp from the waste paper in an aqueous medium that has a pH of between 6 and 9 and that is substantially free of dissolved phosphate and that includes an ink-dispersing amount of dispersing agent, and separating the ink from the pulp.

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