Method for obtaining cyclododecatriene by evaporation
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United States of America Patent
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Jun 14, 2011
Grant Date -
Sep 11, 2008
app pub date -
Jun 30, 2006
filing date -
Jul 5, 2005
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Abstract
Process for recovering cyclododecatriene (CDT) from a solution containing CDT and high boilers such as deactivated catalyst and polymers, which includes feeding the solution into a preheater and heating it, subsequently depressurizing it through a downstream pressure maintenance device and feeding the resulting two-phase mixture into a helical tube evaporator and there reducing the CDT content of the liquid phase by partial evaporation and discharging a gaseous product stream having an increased concentration of CDT.
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