Treatment of Pulp
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United States of America Patent
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Issued Date -
Oct 30, 2008
app pub date -
Jun 10, 2005
filing date -
Jun 11, 2004
priority date (Note) -
Abandoned
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Abstract
A method of treating a fibre pulp mixture comprises: (a) separating the fibre pulp mixture into at least two fractions to form a coarse fraction and a fine fraction; (b) bleaching the coarse fraction from (a); and (c) precipitating an alkaline earth metal carbonate in the fine fraction from (a). The products from steps (b) and (c) may combined in an integrated paper making process.
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