Method and device for the continuous cooking of pulp
US5716497A · kind A · utility
7Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Jun 12, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C3/24
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A novel method and device for the production of pulp by a continuous cooking process is provided wherein hot impregnated chips are fed into the top of a countercurrent steam digester which has a bottom outlet and at least one draw off screen girdle for removing black liquor. At least 50%, preferably 70%, of the cooking liquor is fed to the top of the digester as finely divided droplets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.