Process for gas phase pretreating of lignocellulosic containing material
US6569285B2 · kind B2 · utility
3Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Mar 2, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C1/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a process for the removal of lignin from lignocellulose containing material comprising treating the lignocellulose containing material prior to a chemical pulping process with a delignifying gas, wherein the gas comprises chlorine dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.