FI42785B - - Google Patents
Info
- Publication number
- FI42785B FI42785B FI61264A FI61264A FI42785B FI 42785 B FI42785 B FI 42785B FI 61264 A FI61264 A FI 61264A FI 61264 A FI61264 A FI 61264A FI 42785 B FI42785 B FI 42785B
- Authority
- FI
- Finland
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1047—Conserving the bleached pulp
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE311563 | 1963-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FI42785B true FI42785B (fi) | 1970-06-30 |
Family
ID=20261429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI61264A FI42785B (fi) | 1963-03-21 | 1964-03-20 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH440945A (fi) |
| FI (1) | FI42785B (fi) |
| GB (1) | GB1062734A (fi) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6736934B1 (en) | 1995-02-17 | 2004-05-18 | Andritz Oy | Method of pretreating pulp in an acid tower prior to bleaching with peroxide |
| FI105701B (fi) | 1995-10-20 | 2000-09-29 | Ahlstrom Machinery Oy | Menetelmä ja laitteisto massan käsittelemiseksi |
| SE0500434L (sv) * | 2005-02-24 | 2006-08-22 | Kvaerner Pulping Tech | Behandling av slutblekt massa med i ett milt alkaliskt syrgassteg för att reducera eftergulning |
| US8920603B2 (en) | 2006-10-11 | 2014-12-30 | Akzo Nobel N.V. | Bleaching of pulp |
-
1964
- 1964-03-18 GB GB1148364A patent/GB1062734A/en not_active Expired
- 1964-03-20 FI FI61264A patent/FI42785B/fi active
- 1964-03-23 CH CH370764A patent/CH440945A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1062734A (en) | 1967-03-22 |
| CH440945A (de) | 1967-07-31 |