GB1452710A - Method for bleaching of material containing cellulose - Google Patents
Method for bleaching of material containing celluloseInfo
- Publication number
- GB1452710A GB1452710A GB5403874A GB5403874A GB1452710A GB 1452710 A GB1452710 A GB 1452710A GB 5403874 A GB5403874 A GB 5403874A GB 5403874 A GB5403874 A GB 5403874A GB 1452710 A GB1452710 A GB 1452710A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulp
- oxygen
- foam
- sodium hydroxide
- foaming agent
- 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 2
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 239000000463 material Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 239000006260 foam Substances 0.000 abstract 3
- 239000004088 foaming agent Substances 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- 229920001131 Pulp (paper) Polymers 0.000 abstract 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 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
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali 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
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- UYDLBVPAAFVANX-UHFFFAOYSA-N octylphenoxy polyethoxyethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCO)C=C1 UYDLBVPAAFVANX-UHFFFAOYSA-N 0.000 abstract 1
- 239000000725 suspension Substances 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
-
- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Conductive Materials (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7317221A SE390549C (sv) | 1973-12-20 | 1973-12-20 | Sett att bleka cellulosahaltigt material med syre eller fritt syre innehallande gas i alkalisk miljo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1452710A true GB1452710A (en) | 1976-10-13 |
Family
ID=20319462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5403874A Expired GB1452710A (en) | 1973-12-20 | 1974-12-13 | Method for bleaching of material containing cellulose |
Country Status (12)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209359A (en) * | 1978-10-23 | 1980-06-24 | International Paper Company | Process for removing residual oxygen from oxygen-bleached pulp |
| SE462919B (sv) * | 1979-05-11 | 1990-09-17 | Sunds Defibrator Ind Ab | Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre |
| US4574032A (en) * | 1979-10-15 | 1986-03-04 | Westvaco Corporation | Process for delignification of lignocellulosic material in the presence of anthraquinone in solution with white and black liquors |
| SE452896B (sv) * | 1985-01-24 | 1987-12-21 | Aga Ab | Forfarande for behandling av cellulosamassor |
| SE460202B (sv) * | 1987-03-13 | 1989-09-18 | Aga Ab | Saett vid behandling av ett material med en gas i en vaetska |
| FI89516B (fi) * | 1989-05-10 | 1993-06-30 | Ahlstroem Oy | Foerfarande foer blekning av cellulosamassa med otson |
| US5460696A (en) * | 1993-08-12 | 1995-10-24 | The Boc Group, Inc. | Oxygen delignification method incorporating wood pulp mixing apparatus |
-
1973
- 1973-12-20 SE SE7317221A patent/SE390549C/xx unknown
-
1974
- 1974-12-11 CA CA215,743A patent/CA1065105A/en not_active Expired
- 1974-12-12 ZA ZA00747918A patent/ZA747918B/xx unknown
- 1974-12-13 GB GB5403874A patent/GB1452710A/en not_active Expired
- 1974-12-19 IT IT70687/74A patent/IT1027773B/it active
- 1974-12-19 NO NO744609A patent/NO142128C/no unknown
- 1974-12-19 FI FI743702A patent/FI52878C/fi active
- 1974-12-19 JP JP49146650A patent/JPS524643B2/ja not_active Expired
- 1974-12-19 DE DE19742460144 patent/DE2460144B2/de not_active Ceased
- 1974-12-19 BR BR10652/74A patent/BR7410652D0/pt unknown
- 1974-12-19 SU SU742090807A patent/SU850019A3/ru active
- 1974-12-20 FR FR7442400A patent/FR2255419B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ZA747918B (en) | 1975-12-31 |
| IT1027773B (it) | 1978-12-20 |
| DE2460144A1 (de) | 1975-07-03 |
| JPS524643B2 (enrdf_load_stackoverflow) | 1977-02-05 |
| NO142128B (no) | 1980-03-24 |
| FI52878C (fi) | 1987-09-24 |
| FI52878B (enrdf_load_stackoverflow) | 1977-08-31 |
| SU850019A3 (ru) | 1981-07-23 |
| SE390549C (sv) | 1986-04-14 |
| FR2255419B1 (enrdf_load_stackoverflow) | 1979-06-01 |
| JPS5094202A (enrdf_load_stackoverflow) | 1975-07-26 |
| FI370274A7 (enrdf_load_stackoverflow) | 1975-06-21 |
| FR2255419A1 (enrdf_load_stackoverflow) | 1975-07-18 |
| CA1065105A (en) | 1979-10-30 |
| NO744609L (enrdf_load_stackoverflow) | 1975-07-14 |
| SE7317221L (enrdf_load_stackoverflow) | 1975-06-23 |
| DE2460144B2 (de) | 1977-03-03 |
| BR7410652D0 (pt) | 1975-09-02 |
| NO142128C (no) | 1980-07-02 |
| SE390549B (sv) | 1976-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4451332A (en) | Method for delignification of ligno-cellulose containing fiber material with an alkali-oxygen extraction stage | |
| US3663357A (en) | Bleaching of mechanical cellulosic pulp with ozone in the presence of a peroxygen compound | |
| GB1452710A (en) | Method for bleaching of material containing cellulose | |
| SE7504168L (sv) | Forfarande for kontinuerlig blekning och delignifiering av cellulosamassa | |
| GB1145339A (en) | Improvements in or relating to the bleaching of cellulosic material | |
| NO143298B (no) | Friserapparat. | |
| US2882965A (en) | High viscosity, high percentage alpha cellulose from sulfite pulp | |
| ATE193912T1 (de) | Delignifizierung eines papierzellstoffs mittlerer konsistenz mittels sauerstoff | |
| US3177111A (en) | Hypochlorite sulfamic acid process of bleaching cellulosic materials | |
| US3042575A (en) | Methods of improving the yield in alkaline digestion of cellulosic material | |
| US3284283A (en) | Production of wood pulps including treatment of cellulosic fibers with bisulfite ion followed by alkali metal borohydride | |
| SE8003911L (sv) | Forfarande for syrgasblekning av cellulosamassa | |
| US4008120A (en) | Process of delignification and bleaching a lignocellulose product | |
| GB684742A (en) | Method of bleaching chemical pulp | |
| US2947657A (en) | Extraction of cellulose from vegetable matter | |
| US4010112A (en) | Production of aqueous solutions of chlorine dioxide and chlorine | |
| US4115186A (en) | Process for bleaching cellulose pulp with molecular oxygen | |
| GB1030416A (en) | Improvements in the bleaching of cellulose pulp | |
| GB596193A (en) | Improvements in and relating to the bleaching of cellulosic matter | |
| CA1086905A (en) | Bleach plant operation | |
| FI78326B (fi) | Foerfarande foer behandling av cellulosamassa. | |
| GB1229269A (enrdf_load_stackoverflow) | ||
| KR850001409B1 (ko) | 요소(urea) 알칼리 증해액에 의한 화학펄프 제조법 | |
| GB337445A (en) | Improvements in or relating to the treatment of wood cellulose | |
| Pappens | Organocell. High quality, low pollution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |