SE459262B - Foerfarande foer framstaellning av cellulosa med satsvis kokning - Google Patents
Foerfarande foer framstaellning av cellulosa med satsvis kokningInfo
- Publication number
- SE459262B SE459262B SE8503618A SE8503618A SE459262B SE 459262 B SE459262 B SE 459262B SE 8503618 A SE8503618 A SE 8503618A SE 8503618 A SE8503618 A SE 8503618A SE 459262 B SE459262 B SE 459262B
- Authority
- SE
- Sweden
- Prior art keywords
- cooking
- liquid
- cooking liquid
- active
- boiling
- Prior art date
Links
- 238000010411 cooking Methods 0.000 title claims description 78
- 238000000034 method Methods 0.000 title claims description 8
- 239000007788 liquid Substances 0.000 claims description 86
- 239000000126 substance Substances 0.000 claims description 22
- 229920002678 cellulose Polymers 0.000 claims description 18
- 239000001913 cellulose Substances 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 13
- 238000005470 impregnation Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 238000009835 boiling Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 229920002488 Hemicellulose Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 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
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI834380A FI71176C (fi) | 1983-11-30 | 1983-11-30 | Foerfarande foer framstaellning av cellulosa med satsvis kokning. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8503618D0 SE8503618D0 (sv) | 1985-07-26 |
| SE8503618L SE8503618L (sv) | 1985-07-26 |
| SE459262B true SE459262B (sv) | 1989-06-19 |
Family
ID=8518149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8503618A SE459262B (sv) | 1983-11-30 | 1985-07-26 | Foerfarande foer framstaellning av cellulosa med satsvis kokning |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4764251A (ja) |
| JP (1) | JPH0830311B2 (ja) |
| CA (1) | CA1230207A (ja) |
| FI (1) | FI71176C (ja) |
| SE (1) | SE459262B (ja) |
| WO (1) | WO1985002423A1 (ja) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI82079C (fi) * | 1989-04-27 | 1993-05-11 | Poeyry Jaakko & Co Oy | Foerfarande och anordning foer kontinuerlig kokning av cellulosa |
| DE69004438T2 (de) * | 1989-09-28 | 1994-05-11 | Beloit Technologies Inc | Heizung mit verschiebung in kontinuierlichen zellstoffkochern. |
| US5256255A (en) * | 1989-09-28 | 1993-10-26 | Beloit Technologies, Inc. | Displacement heating in continuous digesters |
| US5183535B1 (en) * | 1990-02-09 | 1996-02-06 | Sunds Defibrator Rauma Oy | Process for preparing kraft pulp using black liquor pretreatment reaction |
| FI110327B (fi) | 1999-10-04 | 2002-12-31 | Metso Chemical Pulping Oy | Menetelmä sellumassan valmistamiseksi |
| FI121384B (fi) * | 1999-12-29 | 2010-10-29 | Metso Paper Inc | Parannettu menetelmä sellumassan valmistamiseksi tärpätin talteenotolla |
| FI120361B (fi) * | 2003-12-31 | 2009-09-30 | Gl & V Finance Hungary Kft | Eräkeittomenetelmä kraftmassan valmistamiseksi |
| US20060157209A1 (en) * | 2005-01-19 | 2006-07-20 | Bianchini Craig A | Method and apparatus to distribute the inflow of liquors in a Batch Digester |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2229886A (en) * | 1934-12-19 | 1941-01-28 | Chemipulp Process Inc | Method of digesting fibrous materials |
| US2195378A (en) * | 1935-11-22 | 1940-03-26 | Chemipulp Process Inc | Process of producing cellulosic pulp |
| US3303088A (en) * | 1963-04-19 | 1967-02-07 | Lummus Co | Continuous liquid-phase rapid pulping |
| NO123511C (ja) * | 1966-05-14 | 1976-07-22 | Domtar Ltd | |
| NO122466B (ja) * | 1966-06-24 | 1971-06-28 | Ass Pulp & Paper Mills | |
| SE359331B (ja) * | 1970-03-17 | 1973-08-27 | Kamyr Ab | |
| US3679543A (en) * | 1970-08-18 | 1972-07-25 | Calgon Corp | Controlling the cooking process in pulp digestion by differential conductivity measurements |
| NO134919C (ja) * | 1973-11-08 | 1977-01-05 | Peterson & Son As M | |
| CA1057007A (en) * | 1974-04-03 | 1979-06-26 | George H. Tomlinson (Ii) | Impregnation of wood particles |
| JPS542281A (en) * | 1977-06-07 | 1979-01-09 | Anelva Corp | Treating method for surface |
| JPS542282A (en) * | 1977-06-08 | 1979-01-09 | Kenkichi Tsukamoto | Suckner separating agent |
| US4236961A (en) * | 1979-07-25 | 1980-12-02 | Green Frank B | Pulping lignocellulose in continuous pressurized batch digesters |
| JPS57171784A (en) * | 1981-04-11 | 1982-10-22 | Mitsubishi Heavy Ind Ltd | Digesting method |
-
1983
- 1983-11-30 FI FI834380A patent/FI71176C/fi not_active IP Right Cessation
-
1984
- 1984-11-28 JP JP59504418A patent/JPH0830311B2/ja not_active Expired - Lifetime
- 1984-11-28 WO PCT/FI1984/000088 patent/WO1985002423A1/en not_active Ceased
- 1984-11-29 CA CA000468919A patent/CA1230207A/en not_active Expired
-
1985
- 1985-07-26 SE SE8503618A patent/SE459262B/sv not_active IP Right Cessation
- 1985-07-30 US US06/763,840 patent/US4764251A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0830311B2 (ja) | 1996-03-27 |
| FI71176B (fi) | 1986-08-14 |
| SE8503618D0 (sv) | 1985-07-26 |
| FI834380L (fi) | 1985-05-31 |
| US4764251A (en) | 1988-08-16 |
| WO1985002423A1 (en) | 1985-06-06 |
| SE8503618L (sv) | 1985-07-26 |
| FI71176C (fi) | 1991-12-03 |
| JPS61500979A (ja) | 1986-05-15 |
| FI834380A0 (fi) | 1983-11-30 |
| CA1230207A (en) | 1987-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 8503618-4 Format of ref document f/p: F |
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| NUG | Patent has lapsed |