NO760908L - - Google Patents
Info
- Publication number
- NO760908L NO760908L NO760908A NO760908A NO760908L NO 760908 L NO760908 L NO 760908L NO 760908 A NO760908 A NO 760908A NO 760908 A NO760908 A NO 760908A NO 760908 L NO760908 L NO 760908L
- Authority
- NO
- Norway
- Prior art keywords
- oxygen
- delignification
- substance
- lignin
- transferring
- Prior art date
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 32
- 239000001301 oxygen Substances 0.000 claims description 32
- 229910052760 oxygen Inorganic materials 0.000 claims description 32
- 239000000126 substance Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 13
- 239000003513 alkali Substances 0.000 claims description 12
- 239000002023 wood Substances 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 229920005610 lignin Polymers 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 229920001131 Pulp (paper) Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- MMNWSHJJPDXKCH-UHFFFAOYSA-N 9,10-dioxoanthracene-2-sulfonic acid Chemical compound C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 MMNWSHJJPDXKCH-UHFFFAOYSA-N 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 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 claims 1
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 125000001424 substituent group Chemical group 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000004061 bleaching Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 235000014633 carbohydrates Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 235000018185 Betula X alpestris Nutrition 0.000 description 2
- 235000018212 Betula X uliginosa Nutrition 0.000 description 2
- 235000009109 Betula pendula Nutrition 0.000 description 2
- 241000219430 Betula pendula Species 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008124 Picea excelsa Nutrition 0.000 description 1
- 244000193463 Picea excelsa Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal bicarbonate Chemical class 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
-
- 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)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Gas Separation By Absorption (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI750799A FI51833C (xx) | 1975-03-18 | 1975-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO760908L true NO760908L (xx) | 1976-09-21 |
Family
ID=8509062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO760908A NO760908L (xx) | 1975-03-18 | 1976-03-16 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS51119801A (xx) |
| CA (1) | CA1088261A (xx) |
| DE (1) | DE2610891A1 (xx) |
| FI (1) | FI51833C (xx) |
| FR (1) | FR2304718A1 (xx) |
| NO (1) | NO760908L (xx) |
| SE (1) | SE428939B (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036680A (en) * | 1976-12-14 | 1977-07-19 | Canadian Industries, Ltd. | Delignification of lignocellulosic material with a soda pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone in admixture with a nitro aromatic compound |
| CA1094264A (en) * | 1976-12-14 | 1981-01-27 | Canadian Industries Limited | Delignification of lignocellulosic material with a soda liquor containing a cyclic keto compound and a nitro aromatic compound |
| US4036681A (en) * | 1976-12-14 | 1977-07-19 | Canadian Industries, Ltd. | Delignification of lignocellulosic material with an alkaline pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone |
| JPS5512806A (en) * | 1978-07-04 | 1980-01-29 | Oji Paper Co | Alkali pulp producing method |
| SE413785B (sv) * | 1978-09-22 | 1980-06-23 | Mo Och Domsjoe Ab | Forfarande for uppslutning av lignocellulosahaltiga material genom alkalisk kokning i nervaro av ett tillsatsemne av redoxtyp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI52877B (xx) * | 1972-11-16 | 1977-08-31 | Ahlstroem Oy |
-
1975
- 1975-03-18 FI FI750799A patent/FI51833C/fi not_active IP Right Cessation
-
1976
- 1976-03-16 NO NO760908A patent/NO760908L/no unknown
- 1976-03-16 DE DE19762610891 patent/DE2610891A1/de not_active Ceased
- 1976-03-17 SE SE7603352A patent/SE428939B/xx not_active IP Right Cessation
- 1976-03-17 CA CA248,067A patent/CA1088261A/en not_active Expired
- 1976-03-18 FR FR7607856A patent/FR2304718A1/fr active Granted
- 1976-03-18 JP JP51028696A patent/JPS51119801A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2610891A1 (de) | 1976-09-30 |
| FI51833C (xx) | 1978-01-24 |
| FR2304718A1 (fr) | 1976-10-15 |
| FI51833B (xx) | 1976-12-31 |
| FR2304718B1 (xx) | 1979-08-31 |
| FI750799A (xx) | 1976-09-19 |
| SE7603352L (sv) | 1976-09-19 |
| SE428939B (sv) | 1983-08-01 |
| JPS51119801A (en) | 1976-10-20 |
| CA1088261A (en) | 1980-10-28 |
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