Process For The Production Of Dialkyl Succinate From Maleic Anyhdride
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United States of America Patent
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Oct 3, 2017
Grant Date -
Jul 28, 2016
app pub date -
Oct 13, 2014
filing date -
Oct 14, 2013
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Abstract
In a process for the production of dialkyl succinate from a feedstock comprising maleic anhydride, feed in the liquid phase is provided to a reactor operated at a temperature of at least about 150° C. The feed is contacted with hydrogen at a pressure of at least about 300 psig in the presence of an acid tolerant catalyst and an alkanol wherein at least some of the carbon carbon double bonds of the maleic anhydride are hydrogenated to form succinic acid and that the heat generated promotes esterification to dialkyl succinate in situ. A stream of dialkyl succinate is recovered from the reactor.
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