Waterless degumming system
US9011639B2 · kind B2 · utility
0Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2011 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Jan 18, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01C1/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and system for cleaning lignin and other gums from lignocellulosic fiber is disclosed. Lignocellulosic fiber is rapidly depressurized to a pressure lower than atmospheric pressure. The fiber is exposed to ionized air during the rapid depressurization. The fiber is then repressurized to a pressure equal to or greater than atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.