Method for the epoxidation of an olefin with hydrogen peroxide
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United States of America Patent
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Feb 5, 2019
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Feb 1, 2018
app pub date -
Feb 3, 2016
filing date -
Feb 17, 2015
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Abstract
In the method for the epoxidation of an olefin, the olefin is continuously reacted with hydrogen peroxide in a mixed reactor in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, the reaction is carried out in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase with mixing of the liquid phases, reaction mixture is continuously withdrawn from the mixed reactor and separated into a separated aqueous phase and a separated organic phase, and part of the separated aqueous phase is continuously recycled into the mixed reactor, with the combined hold-up time of aqueous phase in withdrawing, separating phases and recycling aqueous phase being kept at less than 15 minutes.
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