BE676663A - - Google Patents
Info
- Publication number
- BE676663A BE676663A BE676663DA BE676663A BE 676663 A BE676663 A BE 676663A BE 676663D A BE676663D A BE 676663DA BE 676663 A BE676663 A BE 676663A
- 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
- D21C9/1026—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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43462765A | 1965-02-23 | 1965-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE676663A true BE676663A (en:Method) | 1966-07-18 |
Family
ID=23724985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE676663D BE676663A (en:Method) | 1965-02-23 | 1966-02-17 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3507743A (en:Method) |
| BE (1) | BE676663A (en:Method) |
| DE (1) | DE1546253A1 (en:Method) |
| DK (1) | DK109015C (en:Method) |
| ES (1) | ES322925A1 (en:Method) |
| FI (1) | FI43809B (en:Method) |
| GB (1) | GB1095280A (en:Method) |
| NL (1) | NL6601601A (en:Method) |
| SE (1) | SE314580B (en:Method) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002526A (en) * | 1975-10-10 | 1977-01-11 | International Paper Company | Oxygen-alkali delignification of low consistency wood pulp |
| US4244780A (en) * | 1979-11-15 | 1981-01-13 | Nalco Chemical Company | Use of thiourea dioxide in pulp bleaching processes to preserve pulp strength and aid in brightness |
| US4675076A (en) * | 1986-10-01 | 1987-06-23 | Ppg Industries, Inc. | Method for brightening pulp |
| US5338402A (en) * | 1987-05-25 | 1994-08-16 | Societe Atochem | Process for preparing a bleached chemithermomechanical pulp |
| US5958184A (en) * | 1992-06-10 | 1999-09-28 | Mitsubishi Gas Chemical Company Inc. | Process for producing thiourea dioxide |
| FI105701B (fi) * | 1995-10-20 | 2000-09-29 | Ahlstrom Machinery Oy | Menetelmä ja laitteisto massan käsittelemiseksi |
| US6899790B2 (en) * | 2000-03-06 | 2005-05-31 | Georgia-Pacific Corporation | Method of providing papermaking fibers with durable curl |
| US6627041B2 (en) * | 2000-03-06 | 2003-09-30 | Georgia-Pacific Corporation | Method of bleaching and providing papermaking fibers with durable curl |
| US6428653B1 (en) | 2000-12-04 | 2002-08-06 | West Fraser Timber Co. Ltd. | Method of bleaching with formamidine sulfinic acid using a reducing agent to eliminate residual peroxide |
| CN101120138B (zh) * | 2004-12-21 | 2013-06-05 | 赫尔克里士公司 | 在含有亚硫酸盐离子的造纸体系中用作干和湿强度剂的活性阳离子树脂 |
| WO2025016539A1 (en) * | 2023-07-18 | 2025-01-23 | Basf Se | Process for producing mechanical wood pulp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2071304A (en) * | 1934-12-04 | 1937-02-16 | Great Western Electro Chemical Co | Process of manufacture of products of ground wood pulp |
-
1965
- 1965-02-23 US US434627A patent/US3507743A/en not_active Expired - Lifetime
-
1966
- 1966-02-08 NL NL6601601A patent/NL6601601A/xx unknown
- 1966-02-11 ES ES0322925A patent/ES322925A1/es not_active Expired
- 1966-02-12 FI FI0351/66A patent/FI43809B/fi active
- 1966-02-17 BE BE676663D patent/BE676663A/xx unknown
- 1966-02-17 DE DE19661546253 patent/DE1546253A1/de not_active Withdrawn
- 1966-02-22 GB GB7656/66A patent/GB1095280A/en not_active Expired
- 1966-02-22 DK DK92466AA patent/DK109015C/da active
- 1966-02-23 SE SE2372/66A patent/SE314580B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1546253A1 (de) | 1970-04-30 |
| DK109015C (da) | 1968-03-04 |
| ES322925A1 (es) | 1966-11-16 |
| GB1095280A (en) | 1967-12-13 |
| NL6601601A (en:Method) | 1966-08-24 |
| SE314580B (en:Method) | 1969-09-08 |
| US3507743A (en) | 1970-04-21 |
| FI43809B (en:Method) | 1971-03-01 |