SE174656C1 - - Google Patents
Info
- Publication number
- SE174656C1 SE174656C1 SE849456A SE849456A SE174656C1 SE 174656 C1 SE174656 C1 SE 174656C1 SE 849456 A SE849456 A SE 849456A SE 849456 A SE849456 A SE 849456A SE 174656 C1 SE174656 C1 SE 174656C1
- Authority
- SE
- Sweden
- Prior art keywords
- pressure
- impregnation
- chips
- vessel
- chip
- Prior art date
Links
- 238000005470 impregnation Methods 0.000 claims description 67
- 238000010411 cooking Methods 0.000 claims description 64
- 238000009835 boiling Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 22
- 239000004744 fabric Substances 0.000 claims description 14
- 230000029087 digestion Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229920002678 cellulose Polymers 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000008961 swelling Effects 0.000 claims description 2
- 241000036848 Porzana carolina Species 0.000 claims 1
- 230000002706 hydrostatic effect Effects 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 239000010802 sludge Substances 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 11
- 235000018185 Betula X alpestris Nutrition 0.000 description 7
- 235000018212 Betula X uliginosa Nutrition 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 244000089654 Betula populifolia Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 210000004268 dentin Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000009423 ventilation 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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE849456A SE174656C1 (enrdf_load_stackoverflow) | 1956-09-17 | 1956-09-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE849456A SE174656C1 (enrdf_load_stackoverflow) | 1956-09-17 | 1956-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE174656C1 true SE174656C1 (enrdf_load_stackoverflow) | 1961-03-14 |
Family
ID=2006701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE849456A SE174656C1 (enrdf_load_stackoverflow) | 1956-09-17 | 1956-09-17 |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE174656C1 (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7303649B2 (en) | 2001-11-30 | 2007-12-04 | Stfi Skogsindustrins Tekniska Forskningsinstitut Ab | Removal of inorganic elements from wood chips |
-
1956
- 1956-09-17 SE SE849456A patent/SE174656C1/sv unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7303649B2 (en) | 2001-11-30 | 2007-12-04 | Stfi Skogsindustrins Tekniska Forskningsinstitut Ab | Removal of inorganic elements from wood chips |
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