ZA76274B - Oxygen bleaching of pulp in presence of high-silica protector - Google Patents
Oxygen bleaching of pulp in presence of high-silica protectorInfo
- Publication number
- ZA76274B ZA76274B ZA00760274A ZA76274A ZA76274B ZA 76274 B ZA76274 B ZA 76274B ZA 00760274 A ZA00760274 A ZA 00760274A ZA 76274 A ZA76274 A ZA 76274A ZA 76274 B ZA76274 B ZA 76274B
- Authority
- ZA
- South Africa
- Prior art keywords
- protector
- pulp
- silica
- oxygen bleaching
- bleaching
- Prior art date
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title 1
- 238000004061 bleaching Methods 0.000 title 1
- 229910052760 oxygen Inorganic materials 0.000 title 1
- 239000001301 oxygen Substances 0.000 title 1
- 230000001012 protector Effects 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title 1
- 239000000377 silicon dioxide Substances 0.000 title 1
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 |
|---|---|---|---|
| US55027475A | 1975-02-18 | 1975-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA76274B true ZA76274B (en) | 1976-12-29 |
Family
ID=24196466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA00760274A ZA76274B (en) | 1975-02-18 | 1976-01-19 | Oxygen bleaching of pulp in presence of high-silica protector |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5220562B2 (da) |
| CA (1) | CA1062858A (da) |
| DE (1) | DE2552931A1 (da) |
| FR (1) | FR2301632A1 (da) |
| GB (1) | GB1519072A (da) |
| SE (1) | SE7600243L (da) |
| ZA (1) | ZA76274B (da) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007036376A1 (de) * | 2007-07-31 | 2009-02-05 | Voith Patent Gmbh | Gebleichter Faserstoff |
| SE543640C2 (en) * | 2019-09-04 | 2021-05-11 | Stora Enso Oyj | Fluff pulp from oxygen delignified pulp |
-
1975
- 1975-08-25 CA CA234,066A patent/CA1062858A/en not_active Expired
- 1975-11-26 DE DE19752552931 patent/DE2552931A1/de not_active Withdrawn
-
1976
- 1976-01-09 GB GB784/76A patent/GB1519072A/en not_active Expired
- 1976-01-12 SE SE7600243A patent/SE7600243L/xx unknown
- 1976-01-16 JP JP51003295A patent/JPS5220562B2/ja not_active Expired
- 1976-01-16 FR FR7601074A patent/FR2301632A1/fr active Granted
- 1976-01-19 ZA ZA00760274A patent/ZA76274B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2301632B1 (da) | 1980-06-20 |
| JPS5196505A (da) | 1976-08-24 |
| FR2301632A1 (fr) | 1976-09-17 |
| DE2552931A1 (de) | 1976-09-02 |
| GB1519072A (en) | 1978-07-26 |
| SE7600243L (sv) | 1976-08-19 |
| CA1062858A (en) | 1979-09-25 |
| JPS5220562B2 (da) | 1977-06-04 |
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