METHOD FOR THE DEPOLYMERIZATION OF LIGNIN
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United States of America Patent
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Issued Date -
Apr 21, 2016
app pub date -
Apr 7, 2014
filing date -
Apr 8, 2013
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Abandoned
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Abstract
A catalytic method is disclosed for the valorization of lignin. The method comprises subjecting lignin to a catalyzed hydrothermal conversion reaction, said reaction being conducted in the presence of water at an alkaline pH>8 and a temperature of 200° C.-300° C., under the influence of a noble metal catalyst comprising a carbon support. The same reaction can also be applied to subsequently defunctionalize one or more phenolic compounds, notably guaiacol, so as to produce six-membered cyclic hydrocarbons, such as phenol.
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