Method for activating and precipitating lignin

USPTO Patent Application US 2018/0179339 A1
Application Date: Jun. 28th, 2018

ABSTRACT

According to an example aspect of the present invention, there is provided a method of producing reactive lignin from an alkaline lignin containing stream, such as black liquor, e.g. kraft...
Application Number:
15/736,308
International Classification:
C08H 7/00 (20060101); C07G 1/00 (20060101); C08G 8/24 (20060101)
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CLAIMS

What is claimed is:

1. A method for recovering lignin from alkaline lignin containing feedstock by a thermal treatment, characterized in that the method comprises a simultaneous activation and precipitation of the lignin in the feedstock by a thermal treatment being carried out without added demethylation and demethoxylation enhancing agent, by applying temperature between...

DESCRIPTION

FIELD

The present invention relates to a method for a simultaneous activation and precipitation of lignin from an alkaline lignin containing stream, such as black liquor. More precisely, this invention relates to a lignin product obtained and the use of the product.
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