METHOD FOR MAKING METHYL METHACRYLATE FROM PROPIONALDEHYDE AND FORMALDEHYDE VIA OXIDATIVE ESTERIFICATION
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United States of America Patent
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Issued Date -
Mar 10, 2016
app pub date -
Nov 18, 2015
filing date -
Jan 22, 2013
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Abandoned
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Abstract
A process for forming methyl methacrylate can comprise: reacting ethylene, carbon monoxide, and hydrogen, in the presence of a first catalyst comprising a metal carbonyl; removing a first reaction product comprising propionaldehyde; reacting the first reaction product with formaldehyde; removing a second reaction product comprising methacrolein; reacting the second reaction product with oxygen and methanol in the presence of a second catalyst to form a third reaction product comprising methyl methacrylate. Another process for forming methyl methacrylate can comprising: reacting ethylene with carbon monoxide to form propionaldehyde; reacting the propionaldehyde with formaldehyde to form methacrolein; and reacting the methacrolein with methanol and oxygen to form the methyl methacrylate.
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