CA1057008A - Method in sulphite pulping - Google Patents
Method in sulphite pulpingInfo
- Publication number
- CA1057008A CA1057008A CA234,872A CA234872A CA1057008A CA 1057008 A CA1057008 A CA 1057008A CA 234872 A CA234872 A CA 234872A CA 1057008 A CA1057008 A CA 1057008A
- Authority
- CA
- Canada
- Prior art keywords
- formate
- wood
- cooking
- ester
- added
- 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
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 17
- 238000004537 pulping Methods 0.000 title abstract description 10
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000010411 cooking Methods 0.000 claims abstract description 39
- 239000002023 wood Substances 0.000 claims abstract description 23
- 235000019253 formic acid Nutrition 0.000 claims abstract description 20
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000005470 impregnation Methods 0.000 claims abstract description 5
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 claims abstract description 4
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims abstract description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 14
- -1 formic acid ester Chemical class 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 4
- OUGPMNMLWKSBRI-UHFFFAOYSA-N Hexyl formate Chemical group CCCCCCOC=O OUGPMNMLWKSBRI-UHFFFAOYSA-N 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 claims 1
- 150000004675 formic acid derivatives Chemical class 0.000 abstract description 14
- 239000002253 acid Substances 0.000 description 18
- 229920005610 lignin Polymers 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010025 steaming Methods 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 3
- 241000218657 Picea Species 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000011031 large-scale manufacturing process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- KVNYFPKFSJIPBJ-UHFFFAOYSA-N 1,2-diethylbenzene Chemical compound CCC1=CC=CC=C1CC KVNYFPKFSJIPBJ-UHFFFAOYSA-N 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 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
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical class [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- 238000007080 aromatic substitution reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- RDWUNORUTVEHJF-UHFFFAOYSA-N bornyl formate Chemical compound C1CC2(C)C(OC=O)CC1C2(C)C RDWUNORUTVEHJF-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 229930007927 cymene Natural products 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- LPHFLPKXBKBHRW-UHFFFAOYSA-L magnesium;hydrogen sulfite Chemical compound [Mg+2].OS([O-])=O.OS([O-])=O LPHFLPKXBKBHRW-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- HFPZCAJZSCWRBC-UHFFFAOYSA-N p-cymene Chemical compound CC(C)C1=CC=C(C)C=C1 HFPZCAJZSCWRBC-UHFFFAOYSA-N 0.000 description 1
- 239000001739 pinus spp. Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- ODLMAHJVESYWTB-UHFFFAOYSA-N propylbenzene Chemical group CCCC1=CC=CC=C1 ODLMAHJVESYWTB-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material 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
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
Landscapes
- Paper (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7411268A SE384883B (sv) | 1974-09-06 | 1974-09-06 | Sett att oka cellulosautbytet vid sulfitkokning av ved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1057008A true CA1057008A (en) | 1979-06-26 |
Family
ID=20322071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA234,872A Expired CA1057008A (en) | 1974-09-06 | 1975-09-05 | Method in sulphite pulping |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5153002A (en, 2012) |
| AT (1) | AT344498B (en, 2012) |
| CA (1) | CA1057008A (en, 2012) |
| CH (1) | CH600036A5 (en, 2012) |
| DE (1) | DE2537785A1 (en, 2012) |
| FI (1) | FI58521C (en, 2012) |
| FR (1) | FR2283988A1 (en, 2012) |
| NO (1) | NO144577C (en, 2012) |
| SE (1) | SE384883B (en, 2012) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816473A1 (de) * | 1978-04-15 | 1979-10-25 | Bayer Ag | Dispersion zur verwendung bei der zellstoffgewinnung |
| DE2827111A1 (de) * | 1978-06-21 | 1980-01-10 | Bayer Ag | Mittel zur verwendung bei der zellstoffgewinnung |
| DE19516151A1 (de) * | 1995-05-03 | 1996-11-07 | Sven Siegle | Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE336535C (de) * | 1919-12-02 | 1921-05-03 | Zellstoff Und Papierfabrikatio | Verfahren zur Herstellung reinster Zellulose von baumwoll- oder wollartiger Beschaffenheit aus Vegetabilien mittels saurer Sulfitlaugen |
-
1974
- 1974-09-06 SE SE7411268A patent/SE384883B/xx unknown
-
1975
- 1975-08-25 DE DE19752537785 patent/DE2537785A1/de not_active Withdrawn
- 1975-08-27 CH CH1108775A patent/CH600036A5/xx not_active IP Right Cessation
- 1975-09-01 AT AT670575A patent/AT344498B/de not_active IP Right Cessation
- 1975-09-03 NO NO753029A patent/NO144577C/no unknown
- 1975-09-04 FR FR7527116A patent/FR2283988A1/fr active Granted
- 1975-09-05 JP JP50108467A patent/JPS5153002A/ja active Pending
- 1975-09-05 FI FI752508A patent/FI58521C/fi not_active IP Right Cessation
- 1975-09-05 CA CA234,872A patent/CA1057008A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE7411268L (sv) | 1976-03-08 |
| ATA670575A (de) | 1977-11-15 |
| FI58521B (fi) | 1980-10-31 |
| NO144577B (no) | 1981-06-15 |
| FR2283988B1 (en, 2012) | 1978-12-08 |
| NO144577C (no) | 1981-09-23 |
| AT344498B (de) | 1978-07-25 |
| FR2283988A1 (fr) | 1976-04-02 |
| SE384883B (sv) | 1976-05-24 |
| DE2537785A1 (de) | 1976-03-18 |
| CH600036A5 (en, 2012) | 1978-06-15 |
| NO753029L (en, 2012) | 1976-03-09 |
| JPS5153002A (en) | 1976-05-11 |
| FI752508A7 (en, 2012) | 1976-03-07 |
| FI58521C (fi) | 1981-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3097987A (en) | Continuous pulping process | |
| JP3348387B2 (ja) | ギ酸を添加した酢酸によるパルプの製法 | |
| SU1194282A3 (ru) | Способ разложени лигноцеллюлозного материала | |
| US3585104A (en) | Organosolv pulping and recovery process | |
| US5080755A (en) | Process for the continuous digestion of cellulosic fiber material | |
| Magaton et al. | Eucalyptus wood quality and its impact on kraft pulp production and use | |
| US4426258A (en) | Drying wood pulp in the presence of an alkali metal sulphite | |
| US4595455A (en) | Method for controlling batch alkaline pulp digestion in combination with continuous alkaline oxygen delignification | |
| US2926114A (en) | Manufacture of cellulosic products | |
| US3617431A (en) | Process for preparing cellulose pulp by alkaline digestion while inhibiting extraction of hemicellulose | |
| US4116758A (en) | Method of producing high yield chemimechanical pulps | |
| US3817826A (en) | Process for fractionated recovery of lignin and cellulose from bark | |
| US20040231810A1 (en) | Process for producing pulp | |
| WO1999057364A1 (en) | Process for producing pulp with a mixture of formic acid and acetic acid as cooking chemical | |
| US3274049A (en) | Process for pulping bagasse with ammonium hydroxide and oxygen | |
| CA1057008A (en) | Method in sulphite pulping | |
| US4190490A (en) | Impregnation and digestion of wood chips | |
| US5385641A (en) | Delignification of cellulosic raw materials using acetic acid, nitric acid and ozone | |
| US4094735A (en) | Method of pulping with sulfite liquor containing formic acid esters | |
| CA1150012A (en) | Aqueous catalysed solvent pulping of lignocellulose | |
| EP0485150A1 (en) | Pulping processes, extraction of lignin and composition of matter for use in such processes | |
| SE450899B (sv) | Forfarande for framstellning av kemisk massa enligt den sura sulfituppslutningsprocessen | |
| US3923591A (en) | Prehydrolysis and digestion of fibrous lignocellulosic material | |
| US2230119A (en) | Process of producing wood cellulose | |
| US2176850A (en) | Preparation of cellulose derivatives |