Hydrogen peroxide bleaching process

Details Hydrogen peroxide bleaching process Hydrogen peroxide bleaching process

D - Textiles, Paper

21

C

8/82

D21C 9/16 (2006.01)

Patent

CA 2005599

Abstract "Hydrogen Peroxide Bleaching Process" A rapid, single stage process for the bleaching of high yield lignocellulose pulp (mechanical pulp) to enhanced brightness levels with hydrogen peroxide in the presence of magnesium sulphate and sodium silicate, with a substantial reduction in the wasteful, non-bleaching reactions of hydrogen peroxide. The residual hydrogen peroxide liquor may be recycled to a pulping or bleaching process.

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