Process for producing polysulphide by means of oxidizing sulphide in spent liquors from kraft cellulose cooking
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United States of America Patent
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Nov 30, 1999
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N/A
app pub date -
Jan 21, 1998
filing date -
Jul 4, 1995
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Abstract
The invention relates to a process for producing polysulphide by means of oxidizing sulphide in spent liquors from kraft cellulose cooking. The process is characterized in that green liquor is firstly enriched in sulphide and then oxidized.
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