Enhanced decolorization of waste paper with selected amines

Details Enhanced decolorization of waste paper with selected amines Enhanced decolorization of waste paper with selected amines

1993-07-27

1996-10-01

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 6, 162 7, 162 72, 162 78, 162 82, 162 83, D21C 502

Patent

active

055608051

ABSTRACT:
A method for bleaching pulp containing pulp from color dyed waste paper, wherein the method comprises bleaching the pulp with a bleaching chemical, especially sodium hydrosulfite, in the presence of a selected ethoxylated amine.

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