SE7416010L - - Google Patents
Info
- Publication number
- SE7416010L SE7416010L SE7416010A SE7416010A SE7416010L SE 7416010 L SE7416010 L SE 7416010L SE 7416010 A SE7416010 A SE 7416010A SE 7416010 A SE7416010 A SE 7416010A SE 7416010 L SE7416010 L SE 7416010L
- 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
- D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
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 |
|---|---|---|---|
| FR7345930A FR2255418B1 (xx) | 1973-12-21 | 1973-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7416010L true SE7416010L (xx) | 1975-06-23 |
Family
ID=9129583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7416010A SE7416010L (xx) | 1973-12-21 | 1974-12-19 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4008120A (xx) |
| BE (1) | BE823480A (xx) |
| CA (1) | CA1040809A (xx) |
| FI (1) | FI371574A (xx) |
| FR (1) | FR2255418B1 (xx) |
| SE (1) | SE7416010L (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294654A (en) | 1980-03-21 | 1981-10-13 | International Paper Company | Delignification and bleaching of lignocellulosic pulp via photo-oxygenation |
| EP0112377B1 (en) * | 1982-06-24 | 1986-11-12 | Scott Paper Company | Ozone bleaching of cellulosic materials |
| US4657633A (en) * | 1985-05-24 | 1987-04-14 | Westvaco Corporation | Delignification and bleaching of a cellulose pulp with an alkalioxygen-hypochlorite single stage sequential extraction |
| AU5558196A (en) * | 1995-04-20 | 1996-11-07 | R-J Holding Company | Pulping process |
| US5770010A (en) * | 1995-04-20 | 1998-06-23 | R-J Holding Company | Pulping process employing nascent oxygen |
| BRPI0609002A2 (pt) * | 2005-03-11 | 2010-01-12 | Univ Louisiana State Univ Supervisors | oxidação quìmica para separação de celulose |
| US20090090478A1 (en) * | 2007-10-05 | 2009-04-09 | Hollomon Martha G | Selectivity improvement in oxygen delignification and bleaching of lignocellulose pulp using singlet oxygen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE514856C (de) * | 1926-07-21 | 1930-12-18 | I G Farbenindustrie Akt Ges | Verfahren zum Aufschliessen von cellulosehaltigen Stoffen, wie Holz, Stroh u. dgl. |
| US2465327A (en) * | 1945-01-10 | 1949-03-22 | Buffalo Electro Chem Co | Treatment of ground wood pulp |
| FR1404605A (fr) * | 1964-05-22 | 1965-07-02 | Air Liquide | Perfectionnement à la délignification des pâtes chimiques de cellulose |
| CA902861A (en) * | 1969-11-27 | 1972-06-20 | Pulp And Paper Research Institute Of Canada | Bleaching of cellulosic pulp |
| US3719552A (en) * | 1971-06-18 | 1973-03-06 | American Cyanamid Co | Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide |
| DE2219504C2 (de) * | 1972-04-21 | 1974-10-03 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz |
| CA973660A (en) * | 1972-05-29 | 1975-09-02 | Thomas Joachimides | Treatment of cellulosic matter with active nitrogen |
-
1973
- 1973-12-21 FR FR7345930A patent/FR2255418B1/fr not_active Expired
-
1974
- 1974-12-18 BE BE2054036A patent/BE823480A/xx unknown
- 1974-12-18 US US05/533,774 patent/US4008120A/en not_active Expired - Lifetime
- 1974-12-19 SE SE7416010A patent/SE7416010L/xx unknown
- 1974-12-20 CA CA216,842A patent/CA1040809A/en not_active Expired
- 1974-12-20 FI FI3715/74A patent/FI371574A/fi unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2255418B1 (xx) | 1976-05-07 |
| FI371574A (xx) | 1975-06-22 |
| FR2255418A1 (xx) | 1975-07-18 |
| CA1040809A (en) | 1978-10-24 |
| US4008120A (en) | 1977-02-15 |
| BE823480A (fr) | 1975-04-16 |