Process for manufacture of dimethyl acetamide
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United States of America Patent
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Jun 4, 2002
Grant Date -
N/A
app pub date -
Jun 1, 2000
filing date -
Jun 1, 1999
priority date (Note) -
Expired
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Abstract
A process for the increasing the conversion of raw materials into DMAc by increasing the temperature at which the reaction occurs. The higher temperature is achieved by installing a pressure control valve in the dimethyl amine recycle line returning to the scrubber column. This raises back pressure on reactor and reactor column. The higher pressure raises the temperature in reactor vessel. Higher temperature increases the reaction rate and efficiency. The implementation of this invention greatly increases the capacity of existing equipment without adding large amounts of capital to expand conventional methods.
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