Invention Grant
- Patent Title: Method for making a lignin component, a lignin component and its use and a product
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Application No.: US16020474Application Date: 2018-06-27
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Publication No.: US10526456B2Publication Date: 2020-01-07
- Inventor: Mauno Miettinen
- Applicant: UPM-Kymmene Corporation
- Applicant Address: FI Helsinki
- Assignee: UPM-Kymmene Corporation
- Current Assignee: UPM-Kymmene Corporation
- Current Assignee Address: FI Helsinki
- Agency: Merchant & Gould P.C.
- Priority: FI20116253 20111209; FI20125703 20120625
- Main IPC: C08H7/00
- IPC: C08H7/00 ; D21C1/04 ; D21C3/04 ; C08H8/00 ; C08L97/00 ; C07G1/00 ; D21C11/00
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 by means of an acid composition in at least one acid treatment stage, and the lignin component is washed and neutralized by a pH-buffer during a filtration after the acid treatment, and pH in pH-buffer is between 4-10. Further, the invention relates to a corresponding lignin component.
Public/Granted literature
- US20180305502A1 METHOD FOR MAKING A LIGNIN COMPONENT, A LIGNIN COMPONENT AND ITS USE AND A PRODUCT Public/Granted day:2018-10-25
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