GB1100724A - Improvements in the bleaching of pulp - Google Patents
Improvements in the bleaching of pulpInfo
- Publication number
- GB1100724A GB1100724A GB3308964A GB3308964A GB1100724A GB 1100724 A GB1100724 A GB 1100724A GB 3308964 A GB3308964 A GB 3308964A GB 3308964 A GB3308964 A GB 3308964A GB 1100724 A GB1100724 A GB 1100724A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulp
- bleaching
- bed
- liquids
- aug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004061 bleaching Methods 0.000 title abstract 6
- 239000007788 liquid Substances 0.000 abstract 4
- 238000011282 treatment Methods 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 abstract 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 239000004155 Chlorine dioxide Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000003518 caustics Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 235000019398 chlorine dioxide Nutrition 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002655 kraft paper Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 abstract 1
- 239000004753 textile Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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
- D21C9/1031—Pulse, dynamic, displacement processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA783483A CA783483A (en) | 1964-08-13 | Processes for bleaching cellulosic pulps | |
| GB3308964A GB1100724A (en) | 1964-08-13 | 1964-08-13 | Improvements in the bleaching of pulp |
| NO15907465A NO122218B (enrdf_load_stackoverflow) | 1964-08-13 | 1965-07-23 | |
| DE1965E0029799 DE1546246B2 (de) | 1964-08-13 | 1965-07-29 | Verfahren zum bleichen von faserigem material |
| FI186165A FI44325C (fi) | 1964-08-13 | 1965-08-02 | Menetelmä selluloosamassan valkaisemiseksi |
| SE1019365A SE306877B (enrdf_load_stackoverflow) | 1964-08-13 | 1965-08-04 | |
| BE667857D BE667857A (enrdf_load_stackoverflow) | 1964-08-13 | 1965-08-04 | |
| JP4825865A JPS4830963B1 (enrdf_load_stackoverflow) | 1964-08-13 | 1965-08-10 | |
| FR28014A FR1443743A (fr) | 1964-08-13 | 1965-08-11 | Procédé de blanchiment des pâtes cellulosiques |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3308964A GB1100724A (en) | 1964-08-13 | 1964-08-13 | Improvements in the bleaching of pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1100724A true GB1100724A (en) | 1968-01-24 |
Family
ID=10348429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3308964A Expired GB1100724A (en) | 1964-08-13 | 1964-08-13 | Improvements in the bleaching of pulp |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS4830963B1 (enrdf_load_stackoverflow) |
| BE (1) | BE667857A (enrdf_load_stackoverflow) |
| CA (1) | CA783483A (enrdf_load_stackoverflow) |
| DE (1) | DE1546246B2 (enrdf_load_stackoverflow) |
| FI (1) | FI44325C (enrdf_load_stackoverflow) |
| FR (1) | FR1443743A (enrdf_load_stackoverflow) |
| GB (1) | GB1100724A (enrdf_load_stackoverflow) |
| NO (1) | NO122218B (enrdf_load_stackoverflow) |
| SE (1) | SE306877B (enrdf_load_stackoverflow) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE400997B (sv) * | 1972-12-15 | 1978-04-17 | Erco Envirotech Ltd | Sett for avlegsnande av natriumklorid ur regenererad vitlut |
| JPS5036368U (enrdf_load_stackoverflow) * | 1973-07-25 | 1975-04-16 | ||
| JPS5038966U (enrdf_load_stackoverflow) * | 1973-08-02 | 1975-04-22 | ||
| FR2286234A1 (fr) * | 1974-09-27 | 1976-04-23 | Erco Envirotech Ltd | Fabrication de pate de cellulose blanchie |
| SE426607B (sv) * | 1982-03-29 | 1983-01-31 | Kamyr Ab | Sett att behandla en massasuspension som er i rorelse lengs en bana medelst fortrengning av massans suspensionsvetska med en eller flera ersettningsvetskor |
| FI67891C (fi) * | 1983-02-17 | 1985-06-10 | Larox Ag | Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan |
| US4915785A (en) * | 1988-12-23 | 1990-04-10 | C-I-L Inc. | Single stage process for bleaching of pulp with an aqueous hydrogen peroxide bleaching composition containing magnesium sulphate and sodium silicate |
| FI85513C (fi) * | 1989-04-07 | 1992-04-27 | Salomans Oy | Foerfarande foer behandling av fibermassa med kemikalieloesning. |
-
0
- CA CA783483A patent/CA783483A/en not_active Expired
-
1964
- 1964-08-13 GB GB3308964A patent/GB1100724A/en not_active Expired
-
1965
- 1965-07-23 NO NO15907465A patent/NO122218B/no unknown
- 1965-07-29 DE DE1965E0029799 patent/DE1546246B2/de active Granted
- 1965-08-02 FI FI186165A patent/FI44325C/fi active
- 1965-08-04 BE BE667857D patent/BE667857A/xx unknown
- 1965-08-04 SE SE1019365A patent/SE306877B/xx unknown
- 1965-08-10 JP JP4825865A patent/JPS4830963B1/ja active Pending
- 1965-08-11 FR FR28014A patent/FR1443743A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE306877B (enrdf_load_stackoverflow) | 1968-12-09 |
| DE1546246B2 (de) | 1976-10-07 |
| JPS4830963B1 (enrdf_load_stackoverflow) | 1973-09-26 |
| DE1546246A1 (de) | 1969-07-17 |
| NO122218B (enrdf_load_stackoverflow) | 1971-06-01 |
| CA783483A (en) | 1968-04-23 |
| FI44325C (fi) | 1971-10-11 |
| FR1443743A (fr) | 1966-06-24 |
| FI44325B (enrdf_load_stackoverflow) | 1971-06-30 |
| BE667857A (enrdf_load_stackoverflow) | 1965-12-01 |
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