SE425674B - Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas - Google Patents
Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgasInfo
- Publication number
- SE425674B SE425674B SE8101815A SE8101815A SE425674B SE 425674 B SE425674 B SE 425674B SE 8101815 A SE8101815 A SE 8101815A SE 8101815 A SE8101815 A SE 8101815A SE 425674 B SE425674 B SE 425674B
- Authority
- SE
- Sweden
- Prior art keywords
- oxygen
- pulp
- partial pressure
- treatment
- alkali treatment
- Prior art date
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 86
- 229910052760 oxygen Inorganic materials 0.000 title claims description 85
- 239000001301 oxygen Substances 0.000 title claims description 85
- 238000000034 method Methods 0.000 title claims description 52
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 title description 24
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 title description 23
- 239000003513 alkali Substances 0.000 claims description 91
- 230000004913 activation Effects 0.000 claims description 49
- 230000008569 process Effects 0.000 claims description 33
- 229920002678 cellulose Polymers 0.000 claims description 26
- 239000001913 cellulose Substances 0.000 claims description 26
- 238000004061 bleaching Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 12
- 229920005610 lignin Polymers 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- 229920002488 Hemicellulose Polymers 0.000 claims description 8
- 150000001720 carbohydrates Chemical class 0.000 claims description 6
- 235000014633 carbohydrates Nutrition 0.000 claims description 6
- 239000012071 phase Substances 0.000 claims description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000006731 degradation reaction Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000010411 cooking Methods 0.000 claims description 2
- 239000012978 lignocellulosic material Substances 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 238000004182 chemical digestion Methods 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 229910001882 dioxygen Inorganic materials 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 54
- 238000001994 activation Methods 0.000 description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 35
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 12
- 229910021653 sulphate ion Inorganic materials 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 9
- 230000009467 reduction Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 6
- 241000018646 Pinus brutia Species 0.000 description 6
- 235000011613 Pinus brutia Nutrition 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000011121 hardwood Substances 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000007430 reference method Methods 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 241000218657 Picea Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000001272 nitrous oxide Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 235000000208 Solanum incanum Nutrition 0.000 description 1
- 244000302301 Solanum incanum Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 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
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003918 potentiometric titration Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002023 wood Substances 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
- D21C9/1068—Bleaching ; Apparatus therefor with O2
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8101815A SE425674B (sv) | 1981-03-23 | 1981-03-23 | Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas |
| NZ199697A NZ199697A (en) | 1981-03-23 | 1982-02-11 | Delignifying lignocellulose pulp using oxygen and nitrogen dioxide treatment followed by oxygen and alkali treatment |
| AU81151/82A AU550433B2 (en) | 1981-03-23 | 1982-03-05 | Bleaching cellulose pulp |
| JP57037131A JPS57161185A (en) | 1981-03-23 | 1982-03-08 | Delignification of cellulose pulp |
| FR8204875A FR2502203A1 (fr) | 1981-03-23 | 1982-03-23 | Procede de delignification de pate de cellulose |
| CA000399940A CA1180510A (en) | 1981-03-23 | 1982-03-31 | Process for removing residual lignin in chemical cellulose pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8101815A SE425674B (sv) | 1981-03-23 | 1981-03-23 | Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8101815L SE8101815L (enrdf_load_stackoverflow) | 1982-09-24 |
| SE425674B true SE425674B (sv) | 1982-10-25 |
Family
ID=20343394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8101815A SE425674B (sv) | 1981-03-23 | 1981-03-23 | Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS57161185A (enrdf_load_stackoverflow) |
| AU (1) | AU550433B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1180510A (enrdf_load_stackoverflow) |
| FR (1) | FR2502203A1 (enrdf_load_stackoverflow) |
| NZ (1) | NZ199697A (enrdf_load_stackoverflow) |
| SE (1) | SE425674B (enrdf_load_stackoverflow) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
1981
- 1981-03-23 SE SE8101815A patent/SE425674B/sv not_active IP Right Cessation
-
1982
- 1982-02-11 NZ NZ199697A patent/NZ199697A/en unknown
- 1982-03-05 AU AU81151/82A patent/AU550433B2/en not_active Ceased
- 1982-03-08 JP JP57037131A patent/JPS57161185A/ja active Granted
- 1982-03-23 FR FR8204875A patent/FR2502203A1/fr active Granted
- 1982-03-31 CA CA000399940A patent/CA1180510A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU550433B2 (en) | 1986-03-20 |
| JPS57161185A (en) | 1982-10-04 |
| NZ199697A (en) | 1986-01-24 |
| AU8115182A (en) | 1982-09-30 |
| JPS6360158B2 (enrdf_load_stackoverflow) | 1988-11-22 |
| SE8101815L (enrdf_load_stackoverflow) | 1982-09-24 |
| FR2502203B1 (enrdf_load_stackoverflow) | 1984-11-23 |
| FR2502203A1 (fr) | 1982-09-24 |
| CA1180510A (en) | 1985-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4222819A (en) | Process for the acid bleaching of cellulose pulp with peroxides | |
| FI111964B (fi) | Menetelmä lignoselluloosapitoisen massan valkaisemiseksi | |
| US4087318A (en) | Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound | |
| SE421938B (sv) | Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning | |
| US4451332A (en) | Method for delignification of ligno-cellulose containing fiber material with an alkali-oxygen extraction stage | |
| RU2044808C1 (ru) | Способ многостадийной отбелки целлюлозы | |
| NO300929B1 (no) | Fremgangsmåte for bleking av lignocellulosematerialer | |
| US3944463A (en) | Pulping of lignocellulosic material with oxygen in two stages at increasing pH | |
| Ragauskas et al. | Effects of xylanase pretreatment procedures on nonchlorine bleaching | |
| US5656130A (en) | Ambient temperature pulp bleaching with peroxyacid salts | |
| US4897156A (en) | Process for activating cellulose pulp with NO and/or NO2 and oxygen in the presence of nitric acid and then delignifying bleaching the activated cellulose pulp | |
| US3701712A (en) | Process for treating cellulosic materials with alkali and oxygen in the presence of complex magnesium salts | |
| USH1690H (en) | Process for bleaching kraft pulp | |
| SE425674B (sv) | Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas | |
| US5728264A (en) | Avoidance of salt scaling by acidic pulp washing process | |
| US4750973A (en) | Process for reducing carbohydrate losses in the sulfate pulping of wood by pretreating the wood with oxygen and nitrogen oxides | |
| SE460423B (sv) | Blekning och delignifiering av cellulosamassa med en alkali-syre-hypokloritextraktion | |
| NO159542B (no) | Fremgangsmaate ved delignifisering av cellulosemasse. | |
| NO140605B (no) | Fremgangsmaate ved fjernelse av lignin fra lignocelluloseholdige materialer | |
| FI70056B (fi) | Foerfarande foer delignifiering av cellulosamassa | |
| AU3256001A (en) | Pulping process | |
| FI73017B (fi) | Foerfarande vid blekning av cellulosa. | |
| JP4039308B2 (ja) | 漂白パルプの製造方法 | |
| WO1991000386A1 (en) | A method for bleaching kraft pulp with a mixture of oxygen and peroxide | |
| NO853688L (no) | Fremgangsmaate til delignifisering av sulfatcelluloser. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 8101815-2 Format of ref document f/p: F |
|
| NUG | Patent has lapsed |
Ref document number: 8101815-2 Format of ref document f/p: F |