Bleaching compositions comprising sulfamates and borates or gluconates and processes
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United States of America Patent
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Jun 17, 1997
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N/A
app pub date -
Jan 30, 1995
filing date -
Jan 30, 1995
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Abstract
Pulp bleaching processes employing peroxides and/or oxygen are improved by using stabilizing bleaching additives, preferably before the application of the peroxide and/or oxygen. The bleaching additives contain at least one sulfamic acid or sulfamate such as sodium sulfamate and gluconic acid or a soluble gluconate, or alternatively an alkali metal borate.
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