FI45472B - - Google Patents
Info
- Publication number
- FI45472B FI45472B FI1734/68A FI173468A FI45472B FI 45472 B FI45472 B FI 45472B FI 1734/68 A FI1734/68 A FI 1734/68A FI 173468 A FI173468 A FI 173468A FI 45472 B FI45472 B FI 45472B
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA673680 | 1967-06-20 | ||
| ZA683772 | 1968-06-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI45472B true FI45472B (fi) | 1972-02-29 |
| FI45472C FI45472C (fi) | 1972-06-12 |
Family
ID=27130958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI681734A FI45472C (fi) | 1967-06-20 | 1968-06-20 | Alkalisen massan valkaiseminen ja ligniinin poistaminen hapen avulla. |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4810482B1 (fi) |
| ES (1) | ES355194A1 (fi) |
| FI (1) | FI45472C (fi) |
| NO (1) | NO121431B (fi) |
| SE (1) | SE341520B (fi) |
-
1968
- 1968-06-14 SE SE08122/68A patent/SE341520B/xx unknown
- 1968-06-18 NO NO2360/68A patent/NO121431B/no unknown
- 1968-06-19 ES ES355194A patent/ES355194A1/es not_active Expired
- 1968-06-20 JP JP43042327A patent/JPS4810482B1/ja active Pending
- 1968-06-20 FI FI681734A patent/FI45472C/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| ES355194A1 (es) | 1969-11-16 |
| SE341520B (fi) | 1971-12-27 |
| NO121431B (fi) | 1971-02-22 |
| FI45472C (fi) | 1972-06-12 |
| JPS4810482B1 (fi) | 1973-04-04 |