NO115163B - - Google Patents
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- Publication number
- NO115163B NO115163B NO151648A NO15164864A NO115163B NO 115163 B NO115163 B NO 115163B NO 151648 A NO151648 A NO 151648A NO 15164864 A NO15164864 A NO 15164864A NO 115163 B NO115163 B NO 115163B
- Authority
- NO
- Norway
- Prior art keywords
- line
- container
- moisture
- lye
- cellulose
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 62
- 238000009835 boiling Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 43
- 229920002678 cellulose Polymers 0.000 description 25
- 239000001913 cellulose Substances 0.000 description 25
- 235000011121 sodium hydroxide Nutrition 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000725 suspension Substances 0.000 description 8
- 238000010411 cooking Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229940090046 jet injector Drugs 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009849 vacuum degassing 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 |
|---|---|---|---|
| US252805A US3215587A (en) | 1963-01-21 | 1963-01-21 | Continuous process and apparatus for delignification of cellulosic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO115163B true NO115163B (de) | 1968-08-12 |
Family
ID=22957628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO151648A NO115163B (de) | 1963-01-21 | 1964-01-20 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3215587A (de) |
| AT (1) | AT268038B (de) |
| NO (1) | NO115163B (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3347741A (en) * | 1964-01-13 | 1967-10-17 | Crane Co | Feeder for solid materials |
| SE422604B (sv) * | 1980-08-29 | 1982-03-15 | Modo Chemetics Ab | Forfarande for flidforvermning |
| AT377023B (de) * | 1980-08-29 | 1985-01-25 | Modo Chemetics Ab | Verfahren zum vorwaermen von holzschnitzeln |
| US4632729A (en) * | 1984-05-01 | 1986-12-30 | Laakso Oliver A | Chip presteaming and air washing |
| FI80083C (fi) * | 1988-02-08 | 1990-04-10 | Antti Aho | Foerfarande och anordning foer foerbehandling av cellulosahaltigt raoaemne. |
| US5207870A (en) * | 1988-02-08 | 1993-05-04 | Osmo Aho | Process and equipment for pretreatment of cellulosic raw material |
| DE3990074T1 (de) * | 1988-02-08 | 1991-01-10 | Osmo Aho | Verfahren und vorrichtung zur vorbehandlung von zellstoffrohmaterial |
| US5496439A (en) * | 1993-07-28 | 1996-03-05 | Carlson; Willard E. | Recycle processing of baled waste material |
| FI934281A0 (fi) * | 1993-09-29 | 1993-09-29 | Antti Aho | Foerbehandling av flis |
| WO1998035089A1 (en) * | 1997-02-07 | 1998-08-13 | Kvaerner Pulping Ab | Method and apparatus for preheating an impregnating cellulosic material |
| WO2004106624A1 (en) * | 2003-06-03 | 2004-12-09 | Pacific Pulp Resources Inc. | Method for producing pulp and lignin |
| DE102005017952B4 (de) * | 2005-04-18 | 2013-03-07 | Voith Patent Gmbh | Verfahren zum Entgasen von Streichfarbe |
| CA2802014A1 (en) * | 2010-06-08 | 2011-12-15 | Kenneth Hillel Peter Harris | Methods for making animal feed from lignocellulosic biomass |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1413716A (en) * | 1922-04-25 | A corpora | ||
| US1820994A (en) * | 1929-01-31 | 1931-09-01 | Wallin Johan Hugo | Process of and apparatus for treating fibrous materials for pulping purposes |
| GB333426A (en) * | 1929-09-20 | 1930-08-14 | James Holmes | Process of and apparatus for effecting continuous digestion in the extraction of cellulose |
| US2230119A (en) * | 1937-02-18 | 1941-01-28 | Cellulose Res Corp | Process of producing wood cellulose |
| US2668110A (en) * | 1948-06-18 | 1954-02-02 | Spencer | Method for fiber liberation in cotton stalks and the pulp |
| US2675311A (en) * | 1948-08-09 | 1954-04-13 | John W Natwick | Paper pulp process and apparatus |
| US2640774A (en) * | 1953-01-27 | 1953-06-02 | Pulp And Papen Res Inst Of Can | Production of cellulose pulp |
| US2870009A (en) * | 1955-06-15 | 1959-01-20 | Kamyr Ab | Method and apparatus for the separation of liquids from cellulosic pulp |
-
1963
- 1963-01-21 US US252805A patent/US3215587A/en not_active Expired - Lifetime
-
1964
- 1964-01-09 AT AT15164A patent/AT268038B/de active
- 1964-01-20 NO NO151648A patent/NO115163B/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT268038B (de) | 1969-01-27 |
| US3215587A (en) | 1965-11-02 |
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