Ozone/peroxymonosulfate process for delignifying a lignocellulosic material
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United States of America Patent
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May 2, 1995
Grant Date -
N/A
app pub date -
Mar 22, 1993
filing date -
Mar 22, 1993
priority date (Note) -
Expired
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Abstract
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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