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A method for the Fractionation of lignin fraction of lignin.
A method for the Fractionation of lignin fraction of lignin.
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机译:分级分离木质素的木质素的方法。
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摘要
The present invention relates to a method for fractionating lignin, wherein the method comprises the following steps: (i) dissolving lignin into a mixture containing organic solvent and water; and (ii) ultrafiltrating the mixture formed in step (i) through one or more filtration membranes for producing a predetermined number of lignin fractions, wherein each fraction contains lignin with a molecular weight within a predetermined range. The present invention further relates to a lignin fraction and to the uses thereof.
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