NO120397B - - Google Patents
Download PDFInfo
- Publication number
- NO120397B NO120397B NO4062/68A NO406268A NO120397B NO 120397 B NO120397 B NO 120397B NO 4062/68 A NO4062/68 A NO 4062/68A NO 406268 A NO406268 A NO 406268A NO 120397 B NO120397 B NO 120397B
- Authority
- NO
- Norway
- Prior art keywords
- sulphite
- acetic acid
- cellulose
- pulp
- digestion
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 71
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 25
- 229920002678 cellulose Polymers 0.000 claims description 22
- 239000001913 cellulose Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 19
- 239000002023 wood Substances 0.000 claims description 16
- 230000029087 digestion Effects 0.000 claims description 15
- 238000010411 cooking Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000012286 potassium permanganate Substances 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 235000010980 cellulose Nutrition 0.000 description 21
- 238000009835 boiling Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 5
- 238000004061 bleaching Methods 0.000 description 5
- 229920005610 lignin Polymers 0.000 description 5
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 229920002488 Hemicellulose Polymers 0.000 description 3
- 240000003021 Tsuga heterophylla Species 0.000 description 3
- 229920002301 cellulose acetate Polymers 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 description 2
- 235000007173 Abies balsamea Nutrition 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- 229920002581 Glucomannan Polymers 0.000 description 2
- 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 2
- 229920000057 Mannan Polymers 0.000 description 2
- 241001236219 Pinus echinata Species 0.000 description 2
- 235000005018 Pinus echinata Nutrition 0.000 description 2
- 235000017339 Pinus palustris Nutrition 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 235000008554 Tsuga heterophylla Nutrition 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229940046240 glucomannan Drugs 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241000218685 Tsuga Species 0.000 description 1
- 235000010183 Tsuga mertensiana Nutrition 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 235000019629 palatability Nutrition 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- WQDSRJBTLILEEK-UHFFFAOYSA-N sulfurous acid Chemical compound OS(O)=O.OS(O)=O WQDSRJBTLILEEK-UHFFFAOYSA-N 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 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
- D21C3/003—Pulping cellulose-containing materials with organic compounds
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70989168A | 1968-03-04 | 1968-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO120397B true NO120397B (fr) | 1970-10-12 |
Family
ID=24851706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO4062/68A NO120397B (fr) | 1968-03-04 | 1968-10-12 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3560331A (fr) |
DE (1) | DE1815667A1 (fr) |
NO (1) | NO120397B (fr) |
SE (1) | SE338498B (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4094735A (en) * | 1974-09-06 | 1978-06-13 | Kopparfors Ab | Method of pulping with sulfite liquor containing formic acid esters |
USRE32408E (en) * | 1982-09-29 | 1987-04-28 | Masonite Corporation | Lignosulfonate-phenol-formaldehyde resin binder |
EP2841582A4 (fr) * | 2012-04-26 | 2016-01-20 | Archer Daniels Midland Co | Séparation liquide/liquide de biomasse lignocellulosique pour produire des sirops de sucre et des fractions de lignine |
-
1968
- 1968-03-04 US US709891A patent/US3560331A/en not_active Expired - Lifetime
- 1968-10-01 SE SE13262/68A patent/SE338498B/xx unknown
- 1968-10-12 NO NO4062/68A patent/NO120397B/no unknown
- 1968-12-19 DE DE19681815667 patent/DE1815667A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
SE338498B (fr) | 1971-09-06 |
US3560331A (en) | 1971-02-02 |
DE1815667A1 (de) | 1969-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4070232A (en) | Prehydrolysis and digestion of plant material | |
SU1194282A3 (ru) | Способ разложени лигноцеллюлозного материала | |
US4404061A (en) | Bleaching of lignocellulosic materials with monopersulfuric acid or its salts | |
US3251730A (en) | Process for the purification of a pulp by oxidation with oxygen | |
NO742669L (fr) | ||
US20110073264A1 (en) | Kraft-Pulping of Hot Water Extracted Woodchips | |
NO120397B (fr) | ||
JPS6328157B2 (fr) | ||
US1880043A (en) | Production of high grade chemical pulps | |
US2783146A (en) | Semi-hydrotropic chemical lignocellulose pulping process | |
US2694631A (en) | Process of preparing wood pulp | |
NO149099B (no) | Hoeyderegulerbar trapp med heisbar plattform | |
US2380706A (en) | Production of refined wood pulp | |
NO810981L (no) | Fremgangsmaate ved forhindring av forhorning av cellulose | |
US3354030A (en) | Alkaline sulfite digestion followed by acid digestion with bisulfite | |
Ghahrani et al. | Valorization of old corrugated container to dissolving pulp | |
US2061616A (en) | Production of cellulose | |
GB710257A (en) | Wood pulp | |
US4787959A (en) | Process for preparing chemical paper pulps by cooking, intermediate grinding and a final alkaline peroxide delignification | |
NO154274B (no) | Fremgangsmùte for oppslutning av lignocellulose. | |
US2944929A (en) | Rapid soda process for pulping bagasse and other non-woody plant lignocellulose | |
US2185776A (en) | Method of treating wood cellulose | |
US2118039A (en) | Manufacture of cellulose | |
US2175257A (en) | Manufacture of cellulose | |
Wayman | The manufacture of chemical cellulose from wood |