Method for removing acidic and salt impurities from an aqueous condensed phase containing dimethylcarbonate
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United States of America Patent
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Nov 11, 1997
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N/A
app pub date -
May 31, 1995
filing date -
Jun 3, 1994
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Abstract
Acidic and salt impurities are removed from a condensed phase obtained from dimethyl carbonate synthesis by obtaining the condensed phase from the effluent of a reactor in which carbon monoxide, oxygen and methanol are reacted to form dimethyl carbonate, the condensed phase containing acid and salt impurities, and partially evaporating the condensed phase in an evaporator thereby preparing an evaporated stream substantially free of impurities and a residual bottom stream.
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