Process for production of precipitated lignin from black liquor and precipitated lignin produced by the process
US9567360B2 · kind B2 · utility
1Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2011 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Jul 7, 2031 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C11/0007
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention relates to a process tor the production of precipitated lignin from black liquor wherein the process comprises the steps of providing a black liquor stream treating the black liquor at an increased temperature and precipitating the lignin from the heat treated black liquor. The present invention further relates to precipitated lignin produced according to the process and use of the precipitated lignin produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.