DE1300822C2 - Verfahren zur gewinnung von zellstoff - Google Patents
Verfahren zur gewinnung von zellstoffInfo
- Publication number
- DE1300822C2 DE1300822C2 DE1961S0073644 DES0073644A DE1300822C2 DE 1300822 C2 DE1300822 C2 DE 1300822C2 DE 1961S0073644 DE1961S0073644 DE 1961S0073644 DE S0073644 A DES0073644 A DE S0073644A DE 1300822 C2 DE1300822 C2 DE 1300822C2
- Authority
- DE
- Germany
- Prior art keywords
- stage
- cooking
- pulp
- during
- magnesium
- 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 description 77
- 238000011084 recovery Methods 0.000 title description 9
- 238000010411 cooking Methods 0.000 claims description 43
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 22
- 230000029087 digestion Effects 0.000 claims description 19
- 239000000395 magnesium oxide Substances 0.000 claims description 13
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 11
- 239000000347 magnesium hydroxide Substances 0.000 claims description 11
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 11
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- LPHFLPKXBKBHRW-UHFFFAOYSA-L magnesium;hydrogen sulfite Chemical compound [Mg+2].OS([O-])=O.OS([O-])=O LPHFLPKXBKBHRW-UHFFFAOYSA-L 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229920005610 lignin Polymers 0.000 claims description 5
- 229920001131 Pulp (paper) Polymers 0.000 claims description 4
- 238000004090 dissolution Methods 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical class [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 description 23
- 239000011777 magnesium Substances 0.000 description 17
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 14
- 239000007789 gas Substances 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 12
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 11
- 239000002253 acid Substances 0.000 description 11
- 239000000460 chlorine Substances 0.000 description 11
- 229910052801 chlorine Inorganic materials 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 9
- 239000000725 suspension Substances 0.000 description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 8
- 238000004061 bleaching Methods 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 241000218657 Picea Species 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 239000011122 softwood Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000005708 Sodium hypochlorite Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011121 hardwood Substances 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 241000209149 Zea Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006277 sulfonation reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241001507939 Cormus domestica Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 241000212342 Sium Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- BVNZUIGDLZUTIM-UHFFFAOYSA-J [Pb+2].[OH-].[Mg+2].[OH-].[OH-].[OH-] Chemical compound [Pb+2].[OH-].[Mg+2].[OH-].[OH-].[OH-] BVNZUIGDLZUTIM-UHFFFAOYSA-J 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000013124 brewing process Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 235000019357 lignosulphonate Nutrition 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 1
- 239000011654 magnesium acetate Substances 0.000 description 1
- 235000011285 magnesium acetate Nutrition 0.000 description 1
- 229940069446 magnesium acetate Drugs 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 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
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
- D21C3/266—Multistage processes the same pulping agent being used in all stages
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24927A US3092535A (en) | 1960-04-27 | 1960-04-27 | Sulphite pulping process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1300822C2 true DE1300822C2 (de) | 1975-01-09 |
| DE1300822B DE1300822B (de) | 1975-01-09 |
Family
ID=21823076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1961S0073644 Expired DE1300822C2 (de) | 1960-04-27 | 1961-04-24 | Verfahren zur gewinnung von zellstoff |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3092535A (en, 2012) |
| AT (1) | AT249496B (en, 2012) |
| DE (1) | DE1300822C2 (en, 2012) |
| FI (1) | FI40850B (en, 2012) |
| FR (1) | FR1287891A (en, 2012) |
| GB (1) | GB987612A (en, 2012) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3844879A (en) * | 1972-10-30 | 1974-10-29 | Babcock & Wilcox Co | System for removing sodium chloride contaminants from a magnesium base pulping process |
| FI75615C (fi) * | 1985-11-29 | 1991-08-26 | Ahlstroem Oy | Foerfarande foer saenkning av svartlutens viskositet. |
| US4963231A (en) * | 1988-06-13 | 1990-10-16 | Ahlstromforetagen Svenska Ab | Method for evaporation of liquids |
| CN114851332B (zh) * | 2022-05-31 | 2023-02-17 | 东北林业大学 | 一种具有磁各向异性的木质机器人制备方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB400974A (en) * | 1932-03-04 | 1933-11-06 | Henry Dreyfus | Improvements in or relating to the production of cellulosic materials or cellulose |
| US2730445A (en) * | 1952-03-21 | 1956-01-10 | Sivola George | Integrated lignocellulose digestion and recovery process |
| GB813072A (en) * | 1956-01-13 | 1959-05-06 | Smith Paper Mills Ltd Howard | Sulphite pulping process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1864620A (en) * | 1931-02-18 | 1932-06-28 | Brown Co | Process of liberating pulp from raw cellulosic materials |
| GB459531A (en) * | 1935-07-10 | 1937-01-11 | Henry Dreyfus | Improvements in or relating to the manufacture of cellulose |
| US2385955A (en) * | 1941-04-08 | 1945-10-02 | George H Tomlinson | Manufacture of sulphite pulp |
| BE496841A (en, 2012) * | 1949-07-12 |
-
1960
- 1960-04-27 US US24927A patent/US3092535A/en not_active Expired - Lifetime
-
1961
- 1961-04-14 GB GB13458/61A patent/GB987612A/en not_active Expired
- 1961-04-24 AT AT319461A patent/AT249496B/de active
- 1961-04-24 DE DE1961S0073644 patent/DE1300822C2/de not_active Expired
- 1961-04-25 FI FI0810/61A patent/FI40850B/fi active
- 1961-04-27 FR FR41508A patent/FR1287891A/fr not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB400974A (en) * | 1932-03-04 | 1933-11-06 | Henry Dreyfus | Improvements in or relating to the production of cellulosic materials or cellulose |
| US2730445A (en) * | 1952-03-21 | 1956-01-10 | Sivola George | Integrated lignocellulose digestion and recovery process |
| GB813072A (en) * | 1956-01-13 | 1959-05-06 | Smith Paper Mills Ltd Howard | Sulphite pulping process |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1287891A (fr) | 1962-03-16 |
| AT249496B (de) | 1966-09-26 |
| FI40850B (en, 2012) | 1969-02-28 |
| US3092535A (en) | 1963-06-04 |
| GB987612A (en) | 1965-03-31 |
| DE1300822B (de) | 1975-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0593743B1 (de) | Herstellung von zellstoff nach dem soda-anthraquinon-prozess (s.a.p.) mit rückgewinnung der kochchemikalien | |
| EP0584675B1 (de) | Holzaufschluss mit Essigsäure unter Zusatz von Ameisensäuren | |
| DE69521336T2 (de) | Herstellung vorhydrolysierten zellstoffs | |
| DE2022866A1 (de) | Verfahren zur Behandlung von zelluloseartigem Material | |
| DE2420381A1 (de) | Verfahren zur delignifizierung von lignocellulosematerial | |
| DE2219505B2 (de) | Chlorfreie Mehrstufenbleiche von Zellstoff | |
| EP0205778B1 (de) | Sulfitaufschlussverfahren zur Herstellung von Zellstoff aus lignozellulosehaltigen Materialien mit Rückgewinnung der Aufschlusschemikalien | |
| EP0498330A1 (de) | Verfahren zum Delignifizieren von Pflanzenfasermaterial | |
| DE1290037B (de) | Verfahren zur Herstellung von Zellstoffganzzeug | |
| DE1300822C2 (de) | Verfahren zur gewinnung von zellstoff | |
| DE1249666C2 (de) | Verfahren zur gewinnung von zellstoff nach dem magnesiumbisulfitverfahren | |
| DE3343403A1 (de) | Verfahren zum delignifizierenden bleichen eines wasserhaltigen cellulosehalbstoffes | |
| DE2327900C3 (de) | Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz | |
| DE1063893B (de) | Verfahren zum Aufschluss von lignocellulosehaltigen Rohstoffen | |
| DE2640885C3 (de) | Verfahren zur Herstellung von Zellstoff nach dem Sulfitverfahren | |
| DE975359C (de) | Verfahren zur Gewinnung von Zellstoff aus cellulosehaltigen Rohstoffen | |
| DE2322375A1 (de) | Holzpulpverfahren | |
| AT265847B (de) | Kreisprozeß zur Herstellung von Zellstoff | |
| DE663441C (de) | Verfahren zur Gewinnung von Zellstoff aus Holz | |
| DE2362438C3 (de) | Verfahren zur Herstellung von Holzzellulose mit groBer Helligkeit und niedrigem Splittergehalt | |
| DE2445523A1 (de) | Verfahren zur herstellung von zellstoff | |
| DE3024420C2 (en, 2012) | ||
| DE731181C (de) | Herstellung von hochwertigem Zellstoff nach alkalischen Aufschlussverfahren | |
| AT218847B (de) | Verfahren zum Imprägnieren von pflanzlichem Fasermaterial mit Kochflüssigkeit für die Zelluloseerzeugung | |
| AT148150B (de) | Verfahren zur Darstellung eines sehr reinen Zellstoffes. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHJ | Ceased/non-payment of the annual fee |