FI44748B - - Google Patents
Info
- Publication number
- FI44748B FI44748B FI215368A FI215368A FI44748B FI 44748 B FI44748 B FI 44748B FI 215368 A FI215368 A FI 215368A FI 215368 A FI215368 A FI 215368A FI 44748 B FI44748 B FI 44748B
- 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
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 |
|---|---|---|---|
| SE1531767A SE311110B (xx) | 1967-11-08 | 1967-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FI44748B true FI44748B (xx) | 1971-08-31 |
Family
ID=20300480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI215368A FI44748B (xx) | 1967-11-08 | 1968-07-30 |
Country Status (4)
| Country | Link |
|---|---|
| FI (1) | FI44748B (xx) |
| FR (1) | FR1597604A (xx) |
| SE (1) | SE311110B (xx) |
| SU (1) | SU701546A3 (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE458209B (sv) * | 1987-06-04 | 1989-03-06 | Nils Bertil Carnoe | Saett att reducera miljoeskadliga klorfenolfoereningar vid klorblekning av cellulosamassa |
-
1967
- 1967-11-08 SE SE1531767A patent/SE311110B/xx unknown
-
1968
- 1968-07-30 FI FI215368A patent/FI44748B/fi active
- 1968-11-01 SU SU681282321A patent/SU701546A3/ru active
- 1968-11-08 FR FR1597604D patent/FR1597604A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SU701546A3 (ru) | 1979-11-30 |
| FR1597604A (xx) | 1970-06-29 |
| SE311110B (xx) | 1969-05-27 |