FI48859B - - Google Patents
Info
- Publication number
- FI48859B FI48859B FI02692/69A FI269269A FI48859B FI 48859 B FI48859 B FI 48859B FI 02692/69 A FI02692/69 A FI 02692/69A FI 269269 A FI269269 A FI 269269A FI 48859 B FI48859 B FI 48859B
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
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 |
|---|---|---|---|
| GB44904/68A GB1262655A (en) | 1968-09-20 | 1968-09-20 | Bleaching of wood pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI48859B true FI48859B (de) | 1974-09-30 |
| FI48859C FI48859C (fi) | 1975-01-10 |
Family
ID=10435190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI692692A FI48859C (fi) | 1968-09-20 | 1969-09-19 | Menetelmä lignoselluloosa-aineen, kuten puumassan valkaisemiseksi. |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT292442B (de) |
| BR (1) | BR6912545D0 (de) |
| DE (1) | DE1947931C3 (de) |
| FI (1) | FI48859C (de) |
| FR (1) | FR2018562A1 (de) |
| GB (1) | GB1262655A (de) |
| NO (1) | NO131761C (de) |
| SE (1) | SE364322B (de) |
| ZA (1) | ZA696595B (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2572431B1 (fr) * | 1984-10-25 | 1987-12-04 | Centre Tech Ind Papier | Procede pour la preparation des pates papetieres chimiques en vue du blanchiment. |
| SE9900425L (sv) * | 1999-02-09 | 2000-09-04 | Skogsind Tekn Foskningsinst | Förfarande för delignifiering av massa |
| JP7013246B2 (ja) * | 2015-09-30 | 2022-02-15 | イメリーズ ミネラルズ リミテッド | 水性パルプを漂白するための方法及びこれらの方法において使用するための組成物 |
-
1968
- 1968-09-20 GB GB44904/68A patent/GB1262655A/en not_active Expired
-
1969
- 1969-09-10 NO NO3625/69A patent/NO131761C/no unknown
- 1969-09-18 ZA ZA696595A patent/ZA696595B/xx unknown
- 1969-09-18 BR BR212545/69A patent/BR6912545D0/pt unknown
- 1969-09-19 FI FI692692A patent/FI48859C/fi active
- 1969-09-19 FR FR6932066A patent/FR2018562A1/fr not_active Withdrawn
- 1969-09-19 SE SE12927/69A patent/SE364322B/xx unknown
- 1969-09-22 AT AT896469A patent/AT292442B/de not_active IP Right Cessation
- 1969-09-22 DE DE1947931A patent/DE1947931C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1262655A (en) | 1972-02-02 |
| BR6912545D0 (pt) | 1973-05-03 |
| NO131761B (de) | 1975-04-14 |
| SE364322B (de) | 1974-02-18 |
| AT292442B (de) | 1971-08-25 |
| DE1947931B2 (de) | 1974-11-14 |
| NO131761C (de) | 1977-03-22 |
| DE1947931C3 (de) | 1975-06-26 |
| ZA696595B (en) | 1971-04-28 |
| FI48859C (fi) | 1975-01-10 |
| FR2018562A1 (de) | 1970-05-29 |
| DE1947931A1 (de) | 1970-03-26 |