FI79359C - Foerfarande foer kontroll av ligninets upploesning vid alkaliska massakok. - Google Patents
Foerfarande foer kontroll av ligninets upploesning vid alkaliska massakok. Download PDFInfo
- Publication number
- FI79359C FI79359C FI880226A FI880226A FI79359C FI 79359 C FI79359 C FI 79359C FI 880226 A FI880226 A FI 880226A FI 880226 A FI880226 A FI 880226A FI 79359 C FI79359 C FI 79359C
- Authority
- FI
- Finland
- Prior art keywords
- cooking
- lignin
- determined
- absorbance
- sulphate
- Prior art date
Links
- 229920005610 lignin Polymers 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 18
- 238000010411 cooking Methods 0.000 claims description 29
- 238000002835 absorbance Methods 0.000 claims description 18
- 239000002023 wood Substances 0.000 claims description 18
- 235000014347 soups Nutrition 0.000 claims description 14
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 9
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- 238000004061 bleaching Methods 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 claims description 2
- 238000011069 regeneration method Methods 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 235000018185 Betula X alpestris Nutrition 0.000 description 3
- 235000018212 Betula X uliginosa Nutrition 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011121 hardwood Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- JEJAGQKHAKDRGG-UHFFFAOYSA-N 2,2-dichloroethenyl dimethyl phosphate;(2-propan-2-yloxyphenyl) n-methylcarbamate Chemical compound COP(=O)(OC)OC=C(Cl)Cl.CNC(=O)OC1=CC=CC=C1OC(C)C JEJAGQKHAKDRGG-UHFFFAOYSA-N 0.000 description 1
- 235000003932 Betula Nutrition 0.000 description 1
- 241000219429 Betula Species 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000010254 Jasminum officinale Nutrition 0.000 description 1
- 240000005385 Jasminum sambac Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 241001661641 Verrucosa Species 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical class O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- -1 methoxyl groups Chemical group 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 239000012088 reference solution Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type 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
- D21C7/00—Digesters
- D21C7/12—Devices for regulating or controlling
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Paper (AREA)
- Compounds Of Unknown Constitution (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI880226A FI79359C (fi) | 1988-01-20 | 1988-01-20 | Foerfarande foer kontroll av ligninets upploesning vid alkaliska massakok. |
| SE8900200A SE8900200L (sv) | 1988-01-20 | 1989-01-20 | Metod foer bestaemning av ligninupploesningen vid alkalisk kokning |
| DE19893901662 DE3901662A1 (de) | 1988-01-20 | 1989-01-20 | Verfahren zur ueberwachung der aufloesung von lignin in alkalischem aufschluss |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI880226A FI79359C (fi) | 1988-01-20 | 1988-01-20 | Foerfarande foer kontroll av ligninets upploesning vid alkaliska massakok. |
| FI880226 | 1988-01-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI880226A0 FI880226A0 (fi) | 1988-01-20 |
| FI79359B FI79359B (fi) | 1989-08-31 |
| FI79359C true FI79359C (fi) | 1989-12-11 |
Family
ID=8525747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI880226A FI79359C (fi) | 1988-01-20 | 1988-01-20 | Foerfarande foer kontroll av ligninets upploesning vid alkaliska massakok. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE3901662A1 (de) |
| FI (1) | FI79359C (de) |
| SE (1) | SE8900200L (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9017325U1 (de) * | 1990-12-21 | 1992-01-02 | Siemens AG, 8000 München | Prozeßleitsystem zur Steuerung der Herstellung von Zellstoff |
| DE19653479C1 (de) * | 1996-12-20 | 1998-09-03 | Siemens Ag | Verfahren und Vorrichtung zur Prozeßführung und zur Prozeßoptimierung beim Bleichen von Faserstoffen |
| US6023065A (en) * | 1997-03-10 | 2000-02-08 | Alberta Research Council | Method and apparatus for monitoring and controlling characteristics of process effluents |
| WO2021110933A1 (en) | 2019-12-06 | 2021-06-10 | Basf Se | Method for preparation of lignin oligomers |
| US20240010792A1 (en) | 2020-12-07 | 2024-01-11 | Basf Se | Aqueous lactam solution of lignin |
| CN116648490A (zh) | 2020-12-23 | 2023-08-25 | 巴斯夫欧洲公司 | 用于纤维复合制品的包含聚氨基酸的基料组合物 |
| US12312472B2 (en) | 2020-12-23 | 2025-05-27 | Basf Se | Binder composition comprising polyamine(s) as well as 1,3-dihydroxyacetone, glycolaldehyde and/or glyceraldehyde for composite articles |
| WO2026013025A1 (en) | 2024-07-12 | 2026-01-15 | Basf Se | Lignin-based polyols and a process for the preparation thereof |
-
1988
- 1988-01-20 FI FI880226A patent/FI79359C/fi not_active IP Right Cessation
-
1989
- 1989-01-20 DE DE19893901662 patent/DE3901662A1/de not_active Withdrawn
- 1989-01-20 SE SE8900200A patent/SE8900200L/ not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FI880226A0 (fi) | 1988-01-20 |
| DE3901662A1 (de) | 1989-07-27 |
| SE8900200L (sv) | 1989-07-21 |
| SE8900200D0 (sv) | 1989-01-20 |
| FI79359B (fi) | 1989-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: KAJAANI ELEKTRONIIKKA OY |