FR2018562A1 - - Google Patents
Info
- Publication number
- FR2018562A1 FR2018562A1 FR6932066A FR6932066A FR2018562A1 FR 2018562 A1 FR2018562 A1 FR 2018562A1 FR 6932066 A FR6932066 A FR 6932066A FR 6932066 A FR6932066 A FR 6932066A FR 2018562 A1 FR2018562 A1 FR 2018562A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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 (1)
Publication Number | Publication Date |
---|---|
FR2018562A1 true FR2018562A1 (fr) | 1970-05-29 |
Family
ID=10435190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6932066A Withdrawn FR2018562A1 (fr) | 1968-09-20 | 1969-09-19 |
Country Status (9)
Country | Link |
---|---|
AT (1) | AT292442B (fr) |
BR (1) | BR6912545D0 (fr) |
DE (1) | DE1947931C3 (fr) |
FI (1) | FI48859C (fr) |
FR (1) | FR2018562A1 (fr) |
GB (1) | GB1262655A (fr) |
NO (1) | NO131761C (fr) |
SE (1) | SE364322B (fr) |
ZA (1) | ZA696595B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180529A1 (fr) * | 1984-10-25 | 1986-05-07 | Elf Atochem S.A. | Procédé pour la préparation des pâtes papetières chimiques en vue du blanchiment |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9900425L (sv) * | 1999-02-09 | 2000-09-04 | Skogsind Tekn Foskningsinst | Förfarande för delignifiering av massa |
CA2989264A1 (fr) * | 2015-09-30 | 2017-04-06 | Imerys Minerals Limited | Procedes de blanchiment de pates aqueuses, et compositions destinees a etre utilisees dans ces procedes |
-
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 BR BR212545/69A patent/BR6912545D0/pt unknown
- 1969-09-18 ZA ZA696595A patent/ZA696595B/xx unknown
- 1969-09-19 FR FR6932066A patent/FR2018562A1/fr not_active Withdrawn
- 1969-09-19 SE SE12927/69A patent/SE364322B/xx unknown
- 1969-09-19 FI FI692692A patent/FI48859C/fi active
- 1969-09-22 DE DE1947931A patent/DE1947931C3/de not_active Expired
- 1969-09-22 AT AT896469A patent/AT292442B/de not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180529A1 (fr) * | 1984-10-25 | 1986-05-07 | Elf Atochem S.A. | Procédé pour la préparation des pâtes papetières chimiques en vue du blanchiment |
Also Published As
Publication number | Publication date |
---|---|
ZA696595B (en) | 1971-04-28 |
FI48859B (fr) | 1974-09-30 |
NO131761B (fr) | 1975-04-14 |
NO131761C (fr) | 1977-03-22 |
BR6912545D0 (pt) | 1973-05-03 |
DE1947931C3 (de) | 1975-06-26 |
DE1947931A1 (de) | 1970-03-26 |
DE1947931B2 (de) | 1974-11-14 |
SE364322B (fr) | 1974-02-18 |
FI48859C (fi) | 1975-01-10 |
GB1262655A (en) | 1972-02-02 |
AT292442B (de) | 1971-08-25 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |