Method for making a lignin component, a lignin component and its use and a product
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United States of America Patent
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Jun 27, 2017
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app pub date -
Dec 5, 2012
filing date -
Dec 9, 2011
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Abstract
The invention relates to a method for making a lignin component from lignin material by an acid treatment, the method comprising: forming a lignin component of lignin material by treating the lignin material in at least one acid treatment stage; and optimizing process conditions by means of a combination of process parameters comprising retention time, temperature and pH level at the acid treatment stage so that the retention time is over 6 hours during at least one acid treatment stage. Further, the invention relates to corresponding lignin components, a use of the lignin component and a product.
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