SE364323B - - Google Patents
Info
- Publication number
- SE364323B SE364323B SE08288/72A SE828872A SE364323B SE 364323 B SE364323 B SE 364323B SE 08288/72 A SE08288/72 A SE 08288/72A SE 828872 A SE828872 A SE 828872A SE 364323 B SE364323 B SE 364323B
- Authority
- SE
- Sweden
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
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7208288A SE364323C (sv) | 1972-06-22 | 1972-06-22 | Sett att behandla cellulosamassa i alkalisk miljo |
| FI194173A FI60734C (fi) | 1972-06-22 | 1973-06-15 | Foerfarande foer behandling av cellulosamassa |
| CA174,459A CA1001803A (en) | 1972-06-22 | 1973-06-19 | Method of treating cellulose pulp |
| JP7041873A JPS5536753B2 (enExample) | 1972-06-22 | 1973-06-21 | |
| FR7322744A FR2189572A1 (en) | 1972-06-22 | 1973-06-21 | Bleaching alkaline cellulosic pulp with oxygen - in presence of formaldehyde, (m)ethanol isopropanol, glycerol, sorbitol etc, to ensure slow disintegration of cellulose |
| BR463773A BR7304637D0 (pt) | 1972-06-22 | 1973-06-22 | Processo para alvejar polpa de celulose |
| US05/592,510 US4004967A (en) | 1972-06-22 | 1975-07-02 | Bleaching cellulose pulp with oxygen in the presence of formaldehyde |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7208288A SE364323C (sv) | 1972-06-22 | 1972-06-22 | Sett att behandla cellulosamassa i alkalisk miljo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE364323B true SE364323B (enExample) | 1974-02-18 |
| SE364323C SE364323C (sv) | 1976-04-12 |
Family
ID=20273652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7208288A SE364323C (sv) | 1972-06-22 | 1972-06-22 | Sett att behandla cellulosamassa i alkalisk miljo |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5536753B2 (enExample) |
| BR (1) | BR7304637D0 (enExample) |
| CA (1) | CA1001803A (enExample) |
| FI (1) | FI60734C (enExample) |
| FR (1) | FR2189572A1 (enExample) |
| SE (1) | SE364323C (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229252A (en) * | 1979-01-11 | 1980-10-21 | Weyerhaeuser Company | Additives for ozone bleaching |
| SE441192B (sv) * | 1980-05-27 | 1985-09-16 | Mo Och Domsjoe Ab | Forfarande for delignifiering av kemisk cellulosamassa med syrgas i nervaro av ett eller flera neutralisationsmedel |
| BR9102464A (pt) * | 1991-06-14 | 1993-01-12 | White Martins Sa | Aperfeicoamento em processo de deslignificacao com oxigenio de polpa lignocelulosica |
-
1972
- 1972-06-22 SE SE7208288A patent/SE364323C/xx unknown
-
1973
- 1973-06-15 FI FI194173A patent/FI60734C/fi active
- 1973-06-19 CA CA174,459A patent/CA1001803A/en not_active Expired
- 1973-06-21 JP JP7041873A patent/JPS5536753B2/ja not_active Expired
- 1973-06-21 FR FR7322744A patent/FR2189572A1/fr active Granted
- 1973-06-22 BR BR463773A patent/BR7304637D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR7304637D0 (pt) | 1974-09-05 |
| FI60734C (fi) | 1982-03-10 |
| CA1001803A (en) | 1976-12-21 |
| JPS4948903A (enExample) | 1974-05-11 |
| FR2189572B1 (enExample) | 1977-05-13 |
| FR2189572A1 (en) | 1974-01-25 |
| JPS5536753B2 (enExample) | 1980-09-24 |
| SE364323C (sv) | 1976-04-12 |
| FI60734B (fi) | 1981-11-30 |