EXTRACTIVE DISTILLATION PROCESS
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United States of America Patent
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app pub date -
Aug 27, 2014
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Aug 29, 2013
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Abstract
A process for extracting divinylarene from a composition mixture stream comprising at least an ethylvinylarene and at least a divinylarene, the process comprising the steps of: (a) contacting a composition mixture stream comprising at least an ethylvinylarene and at least a divinylarene with a liquid extractive agent such that at least a portion of the divinylarene present in the composition mixture is extracted into the liquid extractive agent; and (b) recovering at least a portion of the divinylarene extracted from the ethylvinylarene stream to form a divinylarene product stream; wherein the divinylarene product stream contains at least 50 weight percent divinylarene; and an apparatus for extracting divinylarene from the composition mixture stream.
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