Improved ozone/peracid process for delignifying a...

Details Improved ozone/peracid process for delignifying a... Improved ozone/peracid process for delignifying a...

D - Textiles, Paper

21

C

D21C 9/153 (2006.01) D21C 9/16 (2006.01)

Patent

CA 2158563

A process for delignifying a lignocellulosic material comprising exposing the material to a mixture of peracid and ozone. Preferred peracids include Caro's acid and peracetic acid. Also disclosed is a kraft pulp delignification mixture comprising in combination (a) water, (b) a kraft pulp at 1-40 % consistency; (c) a peracid; and (d) from 0.1 to 5.0 % ozone on pulp.

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