Process for manufacturing unsaturated mononitriles to improve on-stream time and reduce fouling
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
May 28, 2008
filing date -
May 28, 2008
priority date (Note) -
Abandoned
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Abstract
The process for manufacturing unsaturated mononitriles, such as acrylonitrile and methacrylonitrile, has been modified to add a partially condensed quench effluent stripper column to remove high boiling organic compounds from the reactor effluent prior to introduction into the extractive distillation recovery column. The high boiling organic compounds are preferably removed after the ammonia in the reactor effluent has been neutralized and the neutralization products have been removed. The targeted high boiling organic compounds are associated with fouling in the recovery section of the plant.
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