Addition of THP or THP+ salt to pulping liquors to destroy catalase and/or catalase producing bacteria
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United States of America Patent
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May 8, 2007
Grant Date -
May 15, 2003
app pub date -
Jan 16, 2001
filing date -
Jan 22, 2000
priority date (Note) -
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Abstract
Pulping liquors used in the bleaching of pulps by hydrogen peroxide, and containing catalase-producing bacteria and/or catalase enzyme are treated with tris (hydroxymethyl) phosphine or a tetrakis (hydroxymethyl) phosphonium salt to kill the bacteria and destroy the enzyme.
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