Process and Apparatus for Coupling Separation and Purification of Ethyl Tert-Butyl Ether
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United States of America Patent
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Issued Date -
Nov 15, 2012
app pub date -
Nov 29, 2010
filing date -
Dec 16, 2009
priority date (Note) -
Abandoned
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Abstract
A process and device of coupling separation and purification to produce ethyl tert-butyl ether (ETBE) is provided, wherein ethanol containing 1 wt % to 15 wt % of water, and a mixture containing ETBE and ethanol are fed into the distillation-extraction coupling zone for separation and purification. Said distillation-extraction coupling zone is composed of a distillation column and an extraction column. Said process and device can achieve the cogeneration of ETBE and ethanol, and possesses high commercial values.
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