Process for producing ammonium salts
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United States of America Patent
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Mar 4, 2014
Grant Date -
Jun 27, 2013
app pub date -
Dec 21, 2011
filing date -
Dec 21, 2011
priority date (Note) -
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Abstract
In one embodiment, the invention is to a process for purifying a by-product stream. The process comprises the step of providing a by-product stream comprising an ammonium salt, dimerized amide, and optionally water. The process further comprises the step of precipitating at least a portion of the dimerized amide in the by-product stream to form solid dimerized amide. The process further comprises the step of separating the solid dimerized amide from the by-product stream to form a treated by-product stream comprising less than 1 wt. % solid dimerized amide.
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