Method of peroxide bleaching of pulp using a peroxide decomposing inactivator
US5618385A · kind A · utility
12Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1994 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Oct 28, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/163
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Chlorine dioxide is used to stabilize hydrogen peroxide in bleach liquor at alkaline pH. This is thought to be aided by the destruction of enzymes (especially catalase) produced by bacteria. The method is useful for the reprocessing of pulps, especially when a de-inking stage is involved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.