Separating lignin from black liquor by precipitation, suspension and separation
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United States of America Patent
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May 8, 2012
Grant Date -
Sep 4, 2008
app pub date -
Feb 21, 2008
filing date -
Sep 14, 2004
priority date (Note) -
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Abstract
A method for controlling the sodium and sulphur balance of a pulp mill while separating lignin from black liquor, and also a lignin product or an intermediate lignin product obtainable by the method. The present invention also provides use of a lignin product or an intermediate lignin product for the production of fuel (solid, gaseous or liquid) or materials.
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