FI57454C - Framstaellning av foerbaettrad hoegutbytesmassa - Google Patents
Framstaellning av foerbaettrad hoegutbytesmassa Download PDFInfo
- Publication number
- FI57454C FI57454C FI752632A FI752632A FI57454C FI 57454 C FI57454 C FI 57454C FI 752632 A FI752632 A FI 752632A FI 752632 A FI752632 A FI 752632A FI 57454 C FI57454 C FI 57454C
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- stream
- chips
- pressure vessel
- steam
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 42
- 238000010411 cooking Methods 0.000 claims description 39
- 239000000126 substance Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 20
- 238000005470 impregnation Methods 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 8
- 238000004090 dissolution Methods 0.000 claims description 8
- 239000012978 lignocellulosic material Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229920005610 lignin Polymers 0.000 claims description 2
- 239000000123 paper Substances 0.000 description 31
- 239000002023 wood Substances 0.000 description 22
- 238000000227 grinding Methods 0.000 description 20
- 239000000203 mixture Substances 0.000 description 17
- 235000018185 Betula X alpestris Nutrition 0.000 description 16
- 235000018212 Betula X uliginosa Nutrition 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 16
- 238000002474 experimental method Methods 0.000 description 15
- 239000000835 fiber Substances 0.000 description 15
- 229920001131 Pulp (paper) Polymers 0.000 description 12
- 241000894007 species Species 0.000 description 12
- 241000218657 Picea Species 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 9
- 241000018646 Pinus brutia Species 0.000 description 9
- 235000011613 Pinus brutia Nutrition 0.000 description 9
- 238000004061 bleaching Methods 0.000 description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 238000007639 printing Methods 0.000 description 8
- 238000000149 argon plasma sintering Methods 0.000 description 7
- 239000007844 bleaching agent Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 6
- 239000011121 hardwood Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 239000011122 softwood Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000013055 pulp slurry Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 235000014347 soups Nutrition 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 241000183024 Populus tremula Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 238000012824 chemical production Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- -1 borohydride Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 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
- 238000003306 harvesting Methods 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
- 238000010626 work up procedure 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
- D21C3/22—Other features of pulping processes
Landscapes
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7411950 | 1974-09-23 | ||
| SE7411950A SE385719B (sv) | 1974-09-23 | 1974-09-23 | Forfarande for framstellning av massa fran lignocellulosamaterial i utbytesomradet 70-93 % |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI752632A7 FI752632A7 (enrdf_load_stackoverflow) | 1976-03-24 |
| FI57454B FI57454B (fi) | 1980-04-30 |
| FI57454C true FI57454C (fi) | 1980-08-11 |
Family
ID=20322204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI752632A FI57454C (fi) | 1974-09-23 | 1975-09-19 | Framstaellning av foerbaettrad hoegutbytesmassa |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5239921B2 (enrdf_load_stackoverflow) |
| AU (1) | AU475099B2 (enrdf_load_stackoverflow) |
| BR (1) | BR7506140A (enrdf_load_stackoverflow) |
| CA (1) | CA1065560A (enrdf_load_stackoverflow) |
| FI (1) | FI57454C (enrdf_load_stackoverflow) |
| FR (1) | FR2285490A1 (enrdf_load_stackoverflow) |
| GB (2) | GB1521332A (enrdf_load_stackoverflow) |
| NO (1) | NO147115C (enrdf_load_stackoverflow) |
| SE (1) | SE385719B (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE416481B (sv) * | 1977-05-02 | 1981-01-05 | Mo Och Domsjoe Ab | Fofarande och anordning for behandling av vedflis for avlegsnande av tungmetaller och harts |
| JPS5415004A (en) * | 1977-07-04 | 1979-02-03 | Hokusan Kk | Pulp making method and apparatus |
| SE466060C (sv) | 1990-02-13 | 1995-09-11 | Moelnlycke Ab | Absorberande kemitermomekanisk massa och framställning därav |
| US5607546A (en) * | 1990-02-13 | 1997-03-04 | Molnlycke Ab | CTMP-process |
-
1974
- 1974-09-23 SE SE7411950A patent/SE385719B/xx not_active IP Right Cessation
-
1975
- 1975-09-08 AU AU84630/75A patent/AU475099B2/en not_active Expired
- 1975-09-19 CA CA235,917A patent/CA1065560A/en not_active Expired
- 1975-09-19 FI FI752632A patent/FI57454C/fi not_active IP Right Cessation
- 1975-09-22 NO NO753227A patent/NO147115C/no unknown
- 1975-09-22 GB GB24434/77A patent/GB1521332A/en not_active Expired
- 1975-09-22 GB GB38855/75A patent/GB1521331A/en not_active Expired
- 1975-09-22 JP JP50114642A patent/JPS5239921B2/ja not_active Expired
- 1975-09-23 FR FR7529113A patent/FR2285490A1/fr active Granted
- 1975-09-23 BR BR7506140*A patent/BR7506140A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR7506140A (pt) | 1976-08-03 |
| FI57454B (fi) | 1980-04-30 |
| AU8463075A (en) | 1976-08-12 |
| FR2285490B1 (enrdf_load_stackoverflow) | 1978-04-07 |
| FI752632A7 (enrdf_load_stackoverflow) | 1976-03-24 |
| GB1521332A (en) | 1978-08-16 |
| NO753227L (enrdf_load_stackoverflow) | 1976-03-24 |
| DE2540917B2 (de) | 1977-02-17 |
| DE2540917A1 (de) | 1976-04-01 |
| SE385719B (sv) | 1976-07-19 |
| NO147115B (no) | 1982-10-25 |
| JPS5160703A (enrdf_load_stackoverflow) | 1976-05-26 |
| SE7411950L (sv) | 1976-03-24 |
| JPS5239921B2 (enrdf_load_stackoverflow) | 1977-10-07 |
| FR2285490A1 (fr) | 1976-04-16 |
| NO147115C (no) | 1983-02-02 |
| CA1065560A (en) | 1979-11-06 |
| GB1521331A (en) | 1978-08-16 |
| AU475099B2 (en) | 1976-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: MO OCH DOMSJOE AB |