DE1517211A1 - Verfahren zur Herstellung von Zellstoff - Google Patents
Verfahren zur Herstellung von ZellstoffInfo
- Publication number
- DE1517211A1 DE1517211A1 DE19601517211 DE1517211A DE1517211A1 DE 1517211 A1 DE1517211 A1 DE 1517211A1 DE 19601517211 DE19601517211 DE 19601517211 DE 1517211 A DE1517211 A DE 1517211A DE 1517211 A1 DE1517211 A1 DE 1517211A1
- Authority
- DE
- Germany
- Prior art keywords
- stage
- types
- soluble
- mentioned
- group
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 238000010411 cooking Methods 0.000 claims description 14
- 150000001768 cations Chemical class 0.000 claims description 10
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 238000003306 harvesting Methods 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 125000002091 cationic group Chemical group 0.000 claims 1
- 238000005470 impregnation Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 20
- 239000007788 liquid Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000003513 alkali Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 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 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000550081 Renata Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater 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 |
|---|---|---|---|
| FI204760 | 1960-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1517211A1 true DE1517211A1 (de) | 1969-03-13 |
Family
ID=8506593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19601517211 Pending DE1517211A1 (de) | 1960-12-13 | 1960-12-16 | Verfahren zur Herstellung von Zellstoff |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1517211A1 (enExample) |
| SE (1) | SE219505C1 (enExample) |
-
1960
- 1960-12-16 DE DE19601517211 patent/DE1517211A1/de active Pending
- 1960-12-16 SE SE1218360A patent/SE219505C1/sv unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE219505C1 (enExample) | 1968-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2610682C2 (enExample) | ||
| DE1517211A1 (de) | Verfahren zur Herstellung von Zellstoff | |
| DE69121332T2 (de) | Verfahren zur herstellung von kraftpulpe | |
| EP0291495B1 (de) | Kombiniertes Verfahren zur thermischen und chemischen Behandlung von lignocellulosehaltiger Biomasse und zur Gewinnung von Furfural | |
| DE660507C (de) | Verfahren und Vorrichtung zur Nutzbarmachung des Heizwertes von Sulfitzellstoffablauge | |
| DE2538673C2 (de) | Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz | |
| DE663911C (de) | Verfahren zur Herstellung von Zellstoff aus Holz durch zweistufiges Kochen mit Bisulfitloesung ueblichen SO-Gehaltes | |
| DE680745C (de) | Verfahren zur Weiterverarbeitung von Ablaugen aus der Zellulosefabrikation | |
| DE632403C (de) | Verfahren zur Verhuetung der Verkrustung von Heizflaechen beim Eindampfen von Sulfitzellstoffablauge | |
| DE527950C (de) | Verfahren zur Gewinnung von Sulfitzellstoff | |
| DE314712C (enExample) | ||
| DE184991C (enExample) | ||
| DE892858C (de) | Verfahren zum Entlaugen von Sulfitzellstoff | |
| DE620726C (de) | Verfahren zur Herstellung von Sulfitzellstoff | |
| DE902252C (de) | Verfahren zur Herstellung von Percarbonat | |
| DE476255C (de) | Verfahren zur Herstellung von Alkalicellulose fuer die Gewinnung von Viskose | |
| AT156823B (de) | Verfahren zur Herstellung von Sulfitzellstoff. | |
| AT233598B (de) | Verfahren zur Herstellung von Schwefeldioxyd in flüssiger oder in Gasform | |
| AT162221B (de) | Verfahren zur Verzuckerung von chemisch abgebauten Cellulosen | |
| DE272036C (enExample) | ||
| DE537607C (de) | Verfahren zur Verarbeitung von Salpetererden | |
| DE712450C (de) | Verfahren zum gleichzeitigen Auswaschen von Schwefelwasserstoff und Ammoniak aus Gasen | |
| DE739668C (de) | Verfahren zur Herstellung von hoch veredeltem Zellstoff aus Stroh | |
| DE1089256B (de) | Verfahren und Anlage zur Gewinnung von Zellstoff durch Kochen von Holz mit Bisulfitlauge | |
| DE664103C (de) | Verfahren zum Aufschliessen von Pflanzenfaserstoffen |