BE518419A - - Google Patents
Info
- Publication number
- BE518419A BE518419A BE518419DA BE518419A BE 518419 A BE518419 A BE 518419A BE 518419D A BE518419D A BE 518419DA BE 518419 A BE518419 A BE 518419A
- Authority
- BE
- Belgium
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
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
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 |
|---|---|---|---|
| US278747A US2741536A (en) | 1952-03-26 | 1952-03-26 | Available chlorine multi-stage bleaching of sulfite pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE518419A true BE518419A (fi) |
Family
ID=23066179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE518419D BE518419A (fi) | 1952-03-26 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2741536A (fi) |
| BE (1) | BE518419A (fi) |
| FR (1) | FR1071422A (fi) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL134770C (fi) * | 1963-07-12 | |||
| US3433702A (en) * | 1965-06-28 | 1969-03-18 | Hooker Chemical Corp | Woodpulp bleaching process |
| USRE28884E (en) * | 1965-06-28 | 1976-06-29 | Hooker Chemicals & Plastics Corporation | Woodpulp bleaching process |
| US3501374A (en) * | 1968-12-26 | 1970-03-17 | Hooker Chemical Corp | Sequential bleaching of kraft pulp with chlorine dioxide and chlorine |
| USRE28887E (en) * | 1968-12-26 | 1976-06-29 | Hooker Chemicals & Plastics Corporation | Sequential bleaching of kraft pulp with chlorine dioxide followed by chlorine |
| US4325783A (en) * | 1978-03-30 | 1982-04-20 | Erco Industries Limited | Bleaching procedure using chlorine dioxide and chlorine solutions |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE331907C (de) * | 1922-01-04 | 1921-01-14 | Schmidt Erich | Verfahren zur Gewinnung von Zellstoff aus Holz und aehnlichen zellstoffhaltigen Stoffen |
| US2235837A (en) * | 1937-09-01 | 1941-03-25 | Mathieson Alkali Works Inc | Bleaching cellulose |
| US2129719A (en) * | 1937-09-13 | 1938-09-13 | Mathieson Alkali Works Inc | Bleaching method |
| US2166330A (en) * | 1938-09-12 | 1939-07-18 | Mathieson Alkali Works Inc | Method of bleaching |
| BE446444A (fi) * | 1941-08-06 |
-
0
- BE BE518419D patent/BE518419A/xx unknown
-
1952
- 1952-03-26 US US278747A patent/US2741536A/en not_active Expired - Lifetime
-
1953
- 1953-02-24 FR FR1071422D patent/FR1071422A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2741536A (en) | 1956-04-10 |
| FR1071422A (fr) | 1954-08-31 |