NO821525L - Fremgangsmaate ved kjemisk fremstilling av cellulose. - Google Patents
Fremgangsmaate ved kjemisk fremstilling av cellulose.Info
- Publication number
- NO821525L NO821525L NO821525A NO821525A NO821525L NO 821525 L NO821525 L NO 821525L NO 821525 A NO821525 A NO 821525A NO 821525 A NO821525 A NO 821525A NO 821525 L NO821525 L NO 821525L
- Authority
- NO
- Norway
- Prior art keywords
- cellulose
- ozone
- bleaching
- lignin
- procedure
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title claims description 31
- 239000001913 cellulose Substances 0.000 title claims description 30
- 238000000034 method Methods 0.000 title claims description 18
- 239000000126 substance Substances 0.000 title description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 32
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 16
- 238000004061 bleaching Methods 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 7
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- 235000010980 cellulose Nutrition 0.000 description 25
- 229920005610 lignin Polymers 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 239000007844 bleaching agent Substances 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- ZETCGWYACBNPIH-UHFFFAOYSA-N azane;sulfurous acid Chemical compound N.OS(O)=O ZETCGWYACBNPIH-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- MAYPHUUCLRDEAZ-UHFFFAOYSA-N chlorine peroxide Inorganic materials ClOOCl MAYPHUUCLRDEAZ-UHFFFAOYSA-N 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 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
- D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
-
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3118384A DE3118384C1 (de) | 1981-05-09 | 1981-05-09 | Verfahren zum Bleichen von chemisch hergestelltem Zellstoff mit Ozon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO821525L true NO821525L (no) | 1982-11-10 |
Family
ID=6131844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO821525A NO821525L (no) | 1981-05-09 | 1982-05-07 | Fremgangsmaate ved kjemisk fremstilling av cellulose. |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS57191388A (de) |
| AT (1) | ATA167682A (de) |
| BR (1) | BR8202532A (de) |
| DE (1) | DE3118384C1 (de) |
| FI (1) | FI821265A0 (de) |
| FR (1) | FR2505377A1 (de) |
| NO (1) | NO821525L (de) |
| SE (1) | SE8202603L (de) |
| ZA (1) | ZA823048B (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT404740B (de) * | 1989-10-30 | 1999-02-25 | Chemiefaser Lenzing Ag | Verfahren zum chlorfreien bleichen von zellstoffen |
| DE4107356C1 (de) * | 1991-03-08 | 1992-11-05 | Acetocell Gmbh & Co Kg, 7162 Gschwend, De | |
| US5364503A (en) * | 1992-02-20 | 1994-11-15 | Macmillan Bloedel Limited | Nitric oxide treatment for ozone bleaching |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR432552A (fr) * | 1911-07-25 | 1911-12-09 | Claude Achilles Meygret | Perfectionnements dans le blanchiment des fibres végétales, des pulpes végétales et leur équivalent |
| FR2158873A5 (en) * | 1972-10-09 | 1973-06-15 | Bourit Jean Pierre | Bleaching of wood cellulose - using nitrogen oxides |
| GB1505070A (en) * | 1974-06-11 | 1978-03-22 | Canadian Ind | Process for bleaching of lignocellulosic material |
| CA1070909A (en) * | 1976-05-04 | 1980-02-05 | Canadian Industries Limited | Nitrogen dioxide-oxygen delignification |
| GB1590704A (en) * | 1976-11-23 | 1981-06-10 | Defibrator Ab | Method end device for the continuous production of pulp from fibrous lignocellulosic materials |
-
1981
- 1981-05-09 DE DE3118384A patent/DE3118384C1/de not_active Expired
-
1982
- 1982-03-31 FR FR8205593A patent/FR2505377A1/fr not_active Withdrawn
- 1982-04-08 FI FI821265A patent/FI821265A0/fi not_active Application Discontinuation
- 1982-04-26 SE SE8202603A patent/SE8202603L/ not_active Application Discontinuation
- 1982-04-29 AT AT0167682A patent/ATA167682A/de not_active IP Right Cessation
- 1982-05-03 BR BR8202532A patent/BR8202532A/pt unknown
- 1982-05-04 JP JP57073504A patent/JPS57191388A/ja active Pending
- 1982-05-04 ZA ZA823048A patent/ZA823048B/xx unknown
- 1982-05-07 NO NO821525A patent/NO821525L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2505377A1 (fr) | 1982-11-12 |
| SE8202603L (sv) | 1982-11-10 |
| JPS57191388A (en) | 1982-11-25 |
| ZA823048B (en) | 1983-03-30 |
| ATA167682A (de) | 1985-04-15 |
| DE3118384C1 (de) | 1982-11-11 |
| FI821265A0 (fi) | 1982-04-08 |
| BR8202532A (pt) | 1983-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2825346B2 (ja) | リグノセルロース物質の環境上改良された漂白方法 | |
| US4196043A (en) | Kraft pulp bleaching and recovery process | |
| WO2021006798A1 (en) | Method for dissolving pulp from recycled textile material | |
| JPS61138793A (ja) | 強化酸化抽出法 | |
| EP0395792B1 (de) | Verfahren zum Bleichen von Zellstoff | |
| US5770010A (en) | Pulping process employing nascent oxygen | |
| SE421938B (sv) | Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning | |
| NO176406B (no) | Fremgangsmåte for bleking av masse | |
| NO160219B (no) | Fremgangsmaate for vasking av ubleket cellulosemasse ved fremstilling av cellulosemasse fra lignocelluloseholdige materialer. | |
| US3884752A (en) | Single vessel wood pulp bleaching with chlorine dioxide followed by sodium hypochlorite or alkaline extraction | |
| US2772138A (en) | Continuous bleaching process | |
| US2203212A (en) | Bleaching pulp | |
| CA1080914A (en) | Pulping of hardwood with sodium sulfide and sodium hydroxide while generating hydrogen sulfide in situ in the initial pulping stages | |
| NO821525L (no) | Fremgangsmaate ved kjemisk fremstilling av cellulose. | |
| US3472731A (en) | Extraction of fibrous cellulosic material with ammonia following treatment with chlorine,chlorine dioxide or other reagents | |
| US5645687A (en) | Process for manufacturing bleached pulp with reduced chloride production | |
| NO129262B (de) | ||
| NZ227748A (en) | Process for producing semibleached kraft pulp | |
| US1880043A (en) | Production of high grade chemical pulps | |
| US2029973A (en) | Paper pulp making process | |
| EP0508064A1 (de) | Verfahren zur Delignifizierung von cellulosehaltigen Rohstoffen | |
| US2731345A (en) | Process of making alpha cellulose from fibrous ligno-cellulose materials, particularly from bagasse | |
| US2747995A (en) | Method of pulp production | |
| NO820918L (no) | Fremgangsmaate og anordning ved bleking av kjemisk fremstilt cellulose. | |
| US20090242152A1 (en) | Bleaching process of chemical pulp |