FI20010384A - Peroxide bleaching of pulp, for the production of paper and fibrous products, involves measuring the oxygen concentration, temperature and/or carbon monoxide concentration in reaction area, based on which process is monitored - Google Patents
Peroxide bleaching of pulp, for the production of paper and fibrous products, involves measuring the oxygen concentration, temperature and/or carbon monoxide concentration in reaction area, based on which process is monitored Download PDFInfo
- Publication number
- FI20010384A FI20010384A FI20010384A FI20010384A FI20010384A FI 20010384 A FI20010384 A FI 20010384A FI 20010384 A FI20010384 A FI 20010384A FI 20010384 A FI20010384 A FI 20010384A FI 20010384 A FI20010384 A FI 20010384A
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- carbon monoxide
- temperature
- reaction area
- monitored
- Prior art date
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Abstract
The method involves contacting a cellulose based fibrous pulp (M) with peroxide (C) in a container (T). The oxygen concentration, temperature and/or carbon monoxide concentration in the reaction area is/are measured, and the process is monitored based on the result. The concentrations of oxygen and carbon monoxide are measured by measuring devices (A, V) and temperature is measured by sensor (S), from the gas volume in the upper part of bleaching container or from the vent gas flowing from the bleaching tower. The consistency of pulp in the reaction area is at least 25% preferably at least 30%. An independent claim is also included for the pulp bleaching device for.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20010384A FI118430B (en) | 2001-02-27 | 2001-02-27 | Peroxide bleaching of pulp, for the production of paper and fibrous products, involves measuring the oxygen concentration, temperature and/or carbon monoxide concentration in reaction area, based on which process is monitored |
AU2001258464A AU2001258464A1 (en) | 2000-05-05 | 2001-05-04 | Method and apparatus for regulating a peroxide bleaching process |
PCT/FI2001/000429 WO2001086059A1 (en) | 2000-05-05 | 2001-05-04 | Method and apparatus for regulating a peroxide bleaching process |
EP01931761A EP1278910A1 (en) | 2000-05-05 | 2001-05-04 | Method and apparatus for regulating a peroxide bleaching process |
US10/274,786 US20030102094A1 (en) | 2000-05-05 | 2002-10-21 | Method in the bleaching of pulp and a device for the bleaching of pulp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20010384A FI118430B (en) | 2001-02-27 | 2001-02-27 | Peroxide bleaching of pulp, for the production of paper and fibrous products, involves measuring the oxygen concentration, temperature and/or carbon monoxide concentration in reaction area, based on which process is monitored |
FI20010384 | 2001-02-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI20010384A0 FI20010384A0 (en) | 2001-02-27 |
FI20010384A true FI20010384A (en) | 2002-08-28 |
FI118430B FI118430B (en) | 2007-11-15 |
Family
ID=8560536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20010384A FI118430B (en) | 2000-05-05 | 2001-02-27 | Peroxide bleaching of pulp, for the production of paper and fibrous products, involves measuring the oxygen concentration, temperature and/or carbon monoxide concentration in reaction area, based on which process is monitored |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI118430B (en) |
-
2001
- 2001-02-27 FI FI20010384A patent/FI118430B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI118430B (en) | 2007-11-15 |
FI20010384A0 (en) | 2001-02-27 |
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