Method and apparatus for bleaching pulp using two fluidizing mixers
US6358363B1 · kind B1 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1996 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Apr 1, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/153
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for bleaching medium consistency pulp with ozone using at least 2 fluidizing mixers to mix ozone and carrier gas into the pulp. The method is particularly applicable when the volume of the bleaching gas is larger than the volume used in conventional ozone bleaching, e.g. 2 m3/adt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.