DE2514382A1 - Verfahren zum aufschliessen von holzschnitzeln - Google Patents
Verfahren zum aufschliessen von holzschnitzelnInfo
- Publication number
- DE2514382A1 DE2514382A1 DE19752514382 DE2514382A DE2514382A1 DE 2514382 A1 DE2514382 A1 DE 2514382A1 DE 19752514382 DE19752514382 DE 19752514382 DE 2514382 A DE2514382 A DE 2514382A DE 2514382 A1 DE2514382 A1 DE 2514382A1
- Authority
- DE
- Germany
- Prior art keywords
- schnitzel
- wood
- chips
- zone
- chemicals
- 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.)
- Ceased
Links
- 239000002023 wood Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000035515 penetration Effects 0.000 title description 3
- 239000000126 substance Substances 0.000 claims abstract description 64
- 238000009835 boiling Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 48
- 238000005470 impregnation Methods 0.000 claims description 42
- 238000002791 soaking Methods 0.000 claims description 42
- 230000029087 digestion Effects 0.000 claims description 26
- 238000010411 cooking Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000035622 drinking Effects 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 229920002522 Wood fibre Polymers 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 239000002025 wood fiber Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 10
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 64
- 239000003513 alkali Substances 0.000 description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 20
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- 238000002156 mixing Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 229920005610 lignin Polymers 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 2
- 241000218657 Picea Species 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 235000007173 Abies balsamea Nutrition 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 239000004857 Balsam Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000014820 Galium aparine Nutrition 0.000 description 1
- 240000005702 Galium aparine Species 0.000 description 1
- 244000018716 Impatiens biflora Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 240000003705 Senecio vulgaris Species 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000004182 chemical digestion Methods 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/10—Physical methods for facilitating impregnation
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45745374A | 1974-04-03 | 1974-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2514382A1 true DE2514382A1 (de) | 1975-10-09 |
Family
ID=23816802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752514382 Ceased DE2514382A1 (de) | 1974-04-03 | 1975-04-02 | Verfahren zum aufschliessen von holzschnitzeln |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS50142801A (cg-RX-API-DMAC7.html) |
| CA (1) | CA1057007A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2514382A1 (cg-RX-API-DMAC7.html) |
| FI (1) | FI60040C (cg-RX-API-DMAC7.html) |
| SE (1) | SE415578B (cg-RX-API-DMAC7.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985002423A1 (en) * | 1983-11-30 | 1985-06-06 | Ekono Oy | A method for the production of cellulose by the batch cooking process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025156027A1 (pt) * | 2024-01-26 | 2025-07-31 | Suzano S.A. | Processo de produção de polpa de celulose, polpa de celulose, uso da polpa de celulose e embalagem de papel |
-
1975
- 1975-03-26 CA CA223,103A patent/CA1057007A/en not_active Expired
- 1975-04-02 SE SE7503772A patent/SE415578B/xx not_active IP Right Cessation
- 1975-04-02 FI FI750984A patent/FI60040C/fi not_active IP Right Cessation
- 1975-04-02 DE DE19752514382 patent/DE2514382A1/de not_active Ceased
- 1975-04-03 JP JP50040734A patent/JPS50142801A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985002423A1 (en) * | 1983-11-30 | 1985-06-06 | Ekono Oy | A method for the production of cellulose by the batch cooking process |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1057007A (en) | 1979-06-26 |
| FI60040C (fi) | 1981-11-10 |
| SE415578B (sv) | 1980-10-13 |
| JPS50142801A (cg-RX-API-DMAC7.html) | 1975-11-17 |
| AU7954175A (en) | 1976-09-30 |
| FI60040B (fi) | 1981-07-31 |
| FI750984A7 (cg-RX-API-DMAC7.html) | 1975-10-04 |
| SE7503772L (sv) | 1975-10-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OGA | New person/name/address of the applicant | ||
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |