CA1101616A - Method of producing coniferous wood celluloses by the sulphite process on a magnesium basis - Google Patents
Method of producing coniferous wood celluloses by the sulphite process on a magnesium basisInfo
- Publication number
- CA1101616A CA1101616A CA301,780A CA301780A CA1101616A CA 1101616 A CA1101616 A CA 1101616A CA 301780 A CA301780 A CA 301780A CA 1101616 A CA1101616 A CA 1101616A
- Authority
- CA
- Canada
- Prior art keywords
- magnesium
- chips
- celluloses
- wood
- solution
- 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 34
- 229920002678 cellulose Polymers 0.000 title claims abstract description 33
- 235000010980 cellulose Nutrition 0.000 title claims abstract description 33
- 239000002023 wood Substances 0.000 title claims abstract description 28
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 title claims abstract description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 239000011777 magnesium Substances 0.000 title claims abstract description 7
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 22
- 241000218657 Picea Species 0.000 claims abstract description 12
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 11
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 11
- LPHFLPKXBKBHRW-UHFFFAOYSA-L magnesium;hydrogen sulfite Chemical compound [Mg+2].OS([O-])=O.OS([O-])=O LPHFLPKXBKBHRW-UHFFFAOYSA-L 0.000 claims abstract description 11
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 7
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 7
- 238000010411 cooking Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 abstract description 3
- 239000008267 milk Substances 0.000 abstract description 3
- 210000004080 milk Anatomy 0.000 abstract description 3
- 238000012432 intermediate storage Methods 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 8
- 239000001913 cellulose Substances 0.000 description 8
- 229910021653 sulphate ion Inorganic materials 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 6
- 230000009172 bursting Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000009835 boiling 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
- 229920002581 Glucomannan Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 229940046240 glucomannan Drugs 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- LVGQIQHJMRUCRM-UHFFFAOYSA-L calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 description 1
- 235000010260 calcium hydrogen sulphite Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001609 comparable effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 1
- 230000006641 stabilisation Effects 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
-
- 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
- D21C3/10—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites magnesium bisulfite
Landscapes
- Paper (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH548977 | 1977-05-03 | ||
| CH005489/77 | 1977-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1101616A true CA1101616A (en) | 1981-05-26 |
Family
ID=4294440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA301,780A Expired CA1101616A (en) | 1977-05-03 | 1978-04-24 | Method of producing coniferous wood celluloses by the sulphite process on a magnesium basis |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS53139802A (de) |
| AT (1) | AT364908B (de) |
| BR (1) | BR7802645A (de) |
| CA (1) | CA1101616A (de) |
| FI (1) | FI781351A7 (de) |
| SE (1) | SE7805124L (de) |
-
1978
- 1978-04-24 CA CA301,780A patent/CA1101616A/en not_active Expired
- 1978-04-27 BR BR7802645A patent/BR7802645A/pt unknown
- 1978-05-02 JP JP5321178A patent/JPS53139802A/ja active Pending
- 1978-05-02 FI FI781351A patent/FI781351A7/fi not_active Application Discontinuation
- 1978-05-02 AT AT0316478A patent/AT364908B/de not_active IP Right Cessation
- 1978-05-03 SE SE7805124A patent/SE7805124L/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI781351A7 (fi) | 1978-11-04 |
| AT364908B (de) | 1981-11-25 |
| SE7805124L (sv) | 1978-11-04 |
| ATA316478A (de) | 1981-04-15 |
| JPS53139802A (en) | 1978-12-06 |
| BR7802645A (pt) | 1978-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4070232A (en) | Prehydrolysis and digestion of plant material | |
| CA1249402A (en) | Multistage brightening of high yield and ultra high- yield wood pulps | |
| US2583548A (en) | Production of pigmented cellulosic pulp | |
| US3888727A (en) | Treatment of lignocellulosic material in an alkaline pulping liquor containing anthraquinone sulphonic acid followed by oxygen delignification | |
| NZ237098A (en) | Process for producing dissolving pulp (high alpha-cellulose pulp) | |
| US2394989A (en) | Manufacture of cellulose | |
| US3532597A (en) | Preparation of dissolving pulps from wood by hydrolysis and alkaline sulfite digestion | |
| RU2019613C1 (ru) | Способ отбелки лиственной сульфатной целлюлозы | |
| US1979341A (en) | Process for preparing cellulose | |
| US2694631A (en) | Process of preparing wood pulp | |
| EP0468016B1 (de) | Verfahren zur herstellung von kraftpulpe | |
| US1880043A (en) | Production of high grade chemical pulps | |
| FI93746B (fi) | Menetelmä valkaistun kemitermomekaanisen massan valmistamiseksi | |
| EP0553649B1 (de) | Verfahren zur Delignifizierung von Zellstoffpulpe | |
| US2098111A (en) | Process for treatment of vegetable fiber | |
| US3591451A (en) | Pretreatment of vegetable matter and delignification of the refined matter with chloring dioxide | |
| US3507744A (en) | Wood pulp bleaching process utilizing peroxide pyrophosphate high concentration compositions | |
| US3773611A (en) | Two-stage sodium sulfite-oxygen pulping | |
| US1705897A (en) | Bleaching of pulp | |
| US3817825A (en) | Bleaching and refining process for producing dissolving pulps | |
| US1741540A (en) | Process for the production of high-alpha cellulose fiber for the manufacture of cellulose derivatives | |
| US4787959A (en) | Process for preparing chemical paper pulps by cooking, intermediate grinding and a final alkaline peroxide delignification | |
| US4134787A (en) | Delignification of lignocellulosic material with an alkaline liquor containing a cyclic amino compound | |
| US2028846A (en) | Cellulose pulp for esterification purposes and processing of same | |
| NZ202296A (en) | Pretreatment of wood prior to sulphate cooking for manufacture of cellulose pulp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |