DE1262754B - Verfahren zur Herstellung von Neutralsulfitzellstoff - Google Patents
Verfahren zur Herstellung von NeutralsulfitzellstoffInfo
- Publication number
- DE1262754B DE1262754B DEST15539A DEST015539A DE1262754B DE 1262754 B DE1262754 B DE 1262754B DE ST15539 A DEST15539 A DE ST15539A DE ST015539 A DEST015539 A DE ST015539A DE 1262754 B DE1262754 B DE 1262754B
- Authority
- DE
- Germany
- Prior art keywords
- pulp
- wood chips
- minutes
- temperature
- production
- 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 15
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 230000007935 neutral effect Effects 0.000 title claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 title claims description 5
- 239000002023 wood Substances 0.000 claims description 27
- 238000005470 impregnation Methods 0.000 claims description 19
- 238000010411 cooking Methods 0.000 claims description 11
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- 238000010025 steaming Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 235000010265 sodium sulphite Nutrition 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- 238000010790 dilution Methods 0.000 claims description 4
- 239000012895 dilution Substances 0.000 claims description 4
- 239000011121 hardwood Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 235000018185 Betula X alpestris Nutrition 0.000 description 4
- 235000018212 Betula X uliginosa Nutrition 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 230000029087 digestion Effects 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 240000001746 Betula lenta Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000012360 testing method Methods 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
- D21C3/04—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
Landscapes
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE865658 | 1958-09-11 | ||
| SE768259 | 1959-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1262754B true DE1262754B (de) | 1968-03-07 |
Family
ID=26654793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEST15539A Pending DE1262754B (de) | 1958-09-11 | 1959-09-05 | Verfahren zur Herstellung von Neutralsulfitzellstoff |
Country Status (7)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007008955A1 (de) * | 2007-02-21 | 2008-08-28 | Voith Patent Gmbh | Verfahren zum Herstellen von Faserstoff aus Holz |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3383277A (en) * | 1967-02-06 | 1968-05-14 | Scott Paper Co | Two-stage pulping process with an isothermal first stage |
| US3533906A (en) * | 1967-10-11 | 1970-10-13 | Haigh M Reiniger | Permanently reacted lignocellulose products and process for making the same |
| SE355614B (US07122603-20061017-C00294.png) * | 1970-05-13 | 1973-04-30 | Mo Och Domsjoe Ab | |
| US4116758A (en) * | 1976-05-14 | 1978-09-26 | Canadian International Paper Co. | Method of producing high yield chemimechanical pulps |
| WO2007140837A2 (de) * | 2006-06-08 | 2007-12-13 | Voith Patent Gmbh | Verfahren zum herstellen von faserstoff |
| RU2009128370A (ru) * | 2006-12-23 | 2011-01-27 | Фойт Патент Гмбх (De) | Способ получения бумаги тиссью |
| DE102007036382A1 (de) * | 2007-07-31 | 2009-02-05 | Voith Patent Gmbh | Lignocellulosischer Faserstoff aus Einjahrespflanzen |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2809111A (en) * | 1956-02-13 | 1957-10-08 | Condi Engineering Corp | Apparatus for wood chip digestion |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US215728A (en) * | 1879-05-27 | Improvement in the manufacture of paper-pulp from wood | ||
| US2862813A (en) * | 1952-12-23 | 1958-12-02 | Process Evaluation Devel | Semi-chemical pulping process |
| US2640774A (en) * | 1953-01-27 | 1953-06-02 | Pulp And Papen Res Inst Of Can | Production of cellulose pulp |
| US2858213A (en) * | 1956-04-20 | 1958-10-28 | Condi Engineering Corp | Wood chip digestion |
| US2975096A (en) * | 1957-11-18 | 1961-03-14 | Bauer Bros Co | Impregnation of wood chips |
-
1959
- 1959-09-04 GB GB30329/59A patent/GB885605A/en not_active Expired
- 1959-09-05 DE DEST15539A patent/DE1262754B/de active Pending
- 1959-09-07 FI FI1418/59A patent/FI40601B/fi active
- 1959-09-09 FR FR804738A patent/FR1236223A/fr not_active Expired
- 1959-09-10 US US839071A patent/US3078208A/en not_active Expired - Lifetime
- 1959-09-11 CH CH7811759A patent/CH379256A/de unknown
- 1959-09-11 BE BE582569A patent/BE582569A/fr unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2809111A (en) * | 1956-02-13 | 1957-10-08 | Condi Engineering Corp | Apparatus for wood chip digestion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007008955A1 (de) * | 2007-02-21 | 2008-08-28 | Voith Patent Gmbh | Verfahren zum Herstellen von Faserstoff aus Holz |
Also Published As
| Publication number | Publication date |
|---|---|
| CH379256A (de) | 1964-06-30 |
| BE582569A (fr) | 1959-12-31 |
| US3078208A (en) | 1963-02-19 |
| FI40601B (US07122603-20061017-C00294.png) | 1968-11-30 |
| GB885605A (en) | 1961-12-28 |
| FR1236223A (fr) | 1960-07-15 |
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