PROCESS FOR OBTAINING LOW MOLECULAR LIGNIN (LML)
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United States of America Patent
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Sep 25, 2014
app pub date -
Nov 26, 2012
filing date -
Nov 28, 2011
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Abstract
A process for obtaining resin or plastics using a lignocellulosic material by treating a lignocellulosic material with an aqueous extraction solution having a content of a C1-4-alcohol of from 70% v/v to 95% v/v at a pH-value of from 12 to 14, whereby a first aqueous solution of low-molecular lignin (LML) is obtained, which is converted into resin or plastics; and a method of obtaining LML and a method of concentrating LML, wherein the first aqueous solution of LML is used for the treatment of additional lignocellulosic material in order to obtain aqueous solutions in which the LML is enriched compared with the first aqueous solution.
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