PROCESSES FOR REMOVING HYDRAZINE FROM HYDROXYLAMINE SOLUTIONS
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United States of America Patent
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Issued Date -
Jun 21, 2012
app pub date -
Dec 19, 2011
filing date -
Dec 21, 2010
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Abandoned
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Abstract
The present invention relates to processes for reducing or eliminating the amount of hydrazine from a hydroxylamine-free base containing hydrazine by treating said hydroxylamine-free base with a scavenger agent, and to the hydroxylamine-free base thereby obtained, as well as to its use for producing microdispersions containing a hydroxamated polymer for use as a flocculant in the Bayer process.
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