Preparation of chemical pulp and xylose, utilizing a direct acid hydrolysis on the pulp
US6752902B2 · kind B2 · utility
31Cited by
12References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2002 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Jun 29, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C11/0007
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method of preparing chemical pulp and xylose by the use of alkaline or neutral cooking and post hydrolysis of the pulp by performing the post hydrolysis directly on the pulp by means of acid treatment. In the method of the invention, the xylan in the pulp is utilized as completely as possible, resulting in a good xylose yield and, simultaneously, acceptable characteristics for the pulp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.