CA1153852A - Process for acid sulfite digestion of wood - Google Patents
Process for acid sulfite digestion of woodInfo
- Publication number
- CA1153852A CA1153852A CA000355337A CA355337A CA1153852A CA 1153852 A CA1153852 A CA 1153852A CA 000355337 A CA000355337 A CA 000355337A CA 355337 A CA355337 A CA 355337A CA 1153852 A CA1153852 A CA 1153852A
- Authority
- CA
- Canada
- Prior art keywords
- cooking
- wood
- temperature
- combined
- liquor
- 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
- 238000000034 method Methods 0.000 title claims abstract description 86
- 230000008569 process Effects 0.000 title claims abstract description 83
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 239000002253 acid Substances 0.000 title claims abstract description 59
- 239000002023 wood Substances 0.000 title claims abstract description 55
- 230000029087 digestion Effects 0.000 title claims abstract description 46
- 238000010411 cooking Methods 0.000 claims abstract description 102
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 9
- 238000002419 base digestion Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 230000002301 combined effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229920005610 lignin Polymers 0.000 description 34
- 238000004537 pulping Methods 0.000 description 19
- 229920002488 Hemicellulose Polymers 0.000 description 16
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 14
- 239000002585 base Substances 0.000 description 13
- 229920001221 xylan Polymers 0.000 description 10
- 150000004823 xylans Chemical class 0.000 description 9
- 229920000057 Mannan Polymers 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229920002678 cellulose Polymers 0.000 description 5
- 235000010980 cellulose Nutrition 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 231100001010 corrosive Toxicity 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 235000007173 Abies balsamea Nutrition 0.000 description 3
- 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 3
- 241000218685 Tsuga Species 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 235000014633 carbohydrates Nutrition 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 2
- 229920000875 Dissolving pulp Polymers 0.000 description 2
- 235000011334 Pinus elliottii Nutrition 0.000 description 2
- 241000142776 Pinus elliottii Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 2
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 2
- 235000012141 vanillin Nutrition 0.000 description 2
- 241001263092 Alchornea latifolia Species 0.000 description 1
- WQZGKKKJIJFFOK-QTVWNMPRSA-N D-mannopyranose Chemical compound OC[C@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-QTVWNMPRSA-N 0.000 description 1
- 241000489861 Maximus Species 0.000 description 1
- 240000003021 Tsuga heterophylla Species 0.000 description 1
- 235000008554 Tsuga heterophylla Nutrition 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 1
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 1
- ATSGLBOJGVTHHC-UHFFFAOYSA-N bis(ethane-1,2-diamine)copper(2+) Chemical compound [Cu+2].NCCN.NCCN ATSGLBOJGVTHHC-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 235000014510 cooky Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003265 pulping liquor Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002025 wood fiber 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
Landscapes
- Paper (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5452579A | 1979-07-03 | 1979-07-03 | |
| US54,525 | 1979-07-03 | ||
| US06/131,813 US4295929A (en) | 1979-07-03 | 1980-03-19 | Process for acid sulfite digestion of wood |
| US131,813 | 1980-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1153852A true CA1153852A (en) | 1983-09-20 |
Family
ID=26733125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000355337A Expired CA1153852A (en) | 1979-07-03 | 1980-07-03 | Process for acid sulfite digestion of wood |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1153852A (enrdf_load_stackoverflow) |
| DE (1) | DE3024420A1 (enrdf_load_stackoverflow) |
-
1980
- 1980-06-28 DE DE19803024420 patent/DE3024420A1/de active Granted
- 1980-07-03 CA CA000355337A patent/CA1153852A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3024420C2 (enrdf_load_stackoverflow) | 1992-07-09 |
| DE3024420A1 (de) | 1981-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |