Process for producing a pulp
US8500956B2 · kind B2 · utility
7Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 2007 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Mar 21, 2029 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C3/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for producing a dissolving pulp from a cellulosic starting material using the kraft process, comprising the step of cooking the starting material with a cooking liquor. The process according to the invention characterized in that the starting material is exposed to a steam treatment prior to cooking and that the pulp obtained by cooking is subjected to cold caustic extraction (CCE) in the course of further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.