SE445120B - Forfarande for framstellning av alkalisk massa - Google Patents
Forfarande for framstellning av alkalisk massaInfo
- Publication number
- SE445120B SE445120B SE7904445A SE7904445A SE445120B SE 445120 B SE445120 B SE 445120B SE 7904445 A SE7904445 A SE 7904445A SE 7904445 A SE7904445 A SE 7904445A SE 445120 B SE445120 B SE 445120B
- Authority
- SE
- Sweden
- Prior art keywords
- zone
- liquid
- aqueous medium
- alkaline aqueous
- dilution
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000001301 oxygen Substances 0.000 claims abstract description 80
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 80
- 238000005406 washing Methods 0.000 claims abstract description 76
- 239000012736 aqueous medium Substances 0.000 claims abstract description 70
- 239000000463 material Substances 0.000 claims abstract description 66
- 239000003513 alkali Substances 0.000 claims abstract description 45
- 238000007790 scraping Methods 0.000 claims abstract description 40
- 238000006243 chemical reaction Methods 0.000 claims abstract description 39
- 238000010411 cooking Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 120
- 238000010790 dilution Methods 0.000 claims description 68
- 239000012895 dilution Substances 0.000 claims description 68
- 238000003756 stirring Methods 0.000 claims description 35
- 238000009835 boiling Methods 0.000 claims description 32
- 239000002826 coolant Substances 0.000 claims description 10
- 239000003085 diluting agent Substances 0.000 claims description 9
- 239000002609 medium Substances 0.000 claims description 9
- 238000005470 impregnation Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 238000007865 diluting Methods 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract 1
- 238000007664 blowing Methods 0.000 description 21
- 239000000706 filtrate Substances 0.000 description 19
- 238000004090 dissolution Methods 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 101100298295 Drosophila melanogaster flfl gene Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000003021 Tsuga heterophylla Species 0.000 description 1
- 235000008554 Tsuga heterophylla Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 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
- D21C7/00—Digesters
- D21C7/08—Discharge devices
-
- 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
- D21C3/24—Continuous processes
-
- 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
- D21C3/26—Multistage processes
- D21C3/263—Multistage processes at least one stage being in presence of oxygen
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6063878A JPS54156801A (en) | 1978-05-23 | 1978-05-23 | Method and apparatus for producing alkali pulp |
| JP11488278A JPS5540873A (en) | 1978-09-19 | 1978-09-19 | Production of alkali pulp |
| JP15602678A JPS5584490A (en) | 1978-12-15 | 1978-12-15 | Production of alkali pulp |
| JP4183979A JPS55137285A (en) | 1979-04-06 | 1979-04-06 | Production of alkali pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7904445L SE7904445L (sv) | 1979-11-24 |
| SE445120B true SE445120B (sv) | 1986-06-02 |
Family
ID=27461115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7904445A SE445120B (sv) | 1978-05-23 | 1979-05-22 | Forfarande for framstellning av alkalisk massa |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4274913A (fr) |
| CA (1) | CA1127357A (fr) |
| SE (1) | SE445120B (fr) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4543155A (en) * | 1983-01-31 | 1985-09-24 | The Boc Group, Inc. | Method for bleaching wood pulp including dissolving oxygen into the dilution water of an extraction stage |
| US5788812A (en) * | 1985-11-05 | 1998-08-04 | Agar; Richard C. | Method of recovering furfural from organic pulping liquor |
| AT387995B (de) * | 1987-06-12 | 1989-04-10 | Andritz Ag Maschf | Austragvorrichtung |
| US4999085A (en) * | 1988-10-06 | 1991-03-12 | Sunds Defibrator Rauma Oy | Method for screening of defibered chlorine dioxide bleached pulp during alkaline extraction |
| US5085734A (en) * | 1989-02-15 | 1992-02-04 | Union Camp Patent Holding, Inc. | Methods of high consistency oxygen delignification using a low consistency alkali pretreatment |
| US5409570A (en) * | 1989-02-15 | 1995-04-25 | Union Camp Patent Holding, Inc. | Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone |
| US5525195A (en) * | 1989-02-15 | 1996-06-11 | Union Camp Patent Holding, Inc. | Process for high consistency delignification using a low consistency alkali pretreatment |
| US5211811A (en) * | 1989-02-15 | 1993-05-18 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification |
| US5188708A (en) * | 1989-02-15 | 1993-02-23 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification followed by ozone relignification |
| US5173153A (en) * | 1991-01-03 | 1992-12-22 | Union Camp Patent Holding, Inc. | Process for enhanced oxygen delignification using high consistency and a split alkali addition |
| US5217574A (en) * | 1989-02-15 | 1993-06-08 | Union Camp Patent Holdings Inc. | Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp |
| US5164044A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
| US5164043A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
| US5441603A (en) * | 1990-05-17 | 1995-08-15 | Union Camp Patent Holding, Inc. | Method for chelation of pulp prior to ozone delignification |
| AT394738B (de) * | 1990-09-03 | 1992-06-10 | Andritz Ag Maschf | Verfahren und vorrichtung zum austragen eines mediums aus einem behaelter |
| US5460696A (en) * | 1993-08-12 | 1995-10-24 | The Boc Group, Inc. | Oxygen delignification method incorporating wood pulp mixing apparatus |
| US5554259A (en) * | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
| PT834051E (pt) * | 1995-06-20 | 2002-08-30 | Andritz Ahlstrom Oy | Metodo e aparelho para tratamento de material mau condutor de calor |
| US5783037A (en) * | 1996-08-22 | 1998-07-21 | Mg Industries | System and method for operating a pulp mill |
| ATE368017T1 (de) | 2000-03-14 | 2007-08-15 | James Hardie Int Finance Bv | Faserzementbaumaterialien mit zusatzstoffen niedriger dichte |
| MXPA03002704A (es) * | 2000-10-04 | 2003-06-24 | James Hardie Res Pty Ltd | Materiales del compuesto de cemento con fibra, usando fibras de celulosa encoladas. |
| US20050126430A1 (en) * | 2000-10-17 | 2005-06-16 | Lightner James E.Jr. | Building materials with bioresistant properties |
| BR0114671A (pt) * | 2000-10-17 | 2003-10-07 | James Hardie Res Pty Ltd | Método e mecanismo para reduzir impurezas em fibras de celulose para a fabricação de materiais de composto de cimento reforçados com fibra |
| DE60219443T2 (de) * | 2001-03-09 | 2007-12-20 | James Hardie International Finance B.V. | Faserverstärkte zementmaterialien unter verwendung von chemisch abgeänderten fasern mit verbesserter mischbarkeit |
| WO2003097930A1 (fr) * | 2002-05-15 | 2003-11-27 | Weyerhaeuser Company | Procede de production de pate a papier non blanchie a tres faible demande chimique en oxygene |
| BR0215713A (pt) * | 2002-05-15 | 2005-02-22 | Weyerhaeuser Co | Produto de polpa, e, produto de cimento |
| US7081184B2 (en) * | 2002-05-15 | 2006-07-25 | Weyerhaeuser Company | Process for making a very low COD unbleached pulp |
| FI120505B (fi) * | 2002-07-12 | 2009-11-13 | Stora Enso Oyj | Jatkuvatoiminen menetelmä selluloosapohjaisen massan keittämiseksi sekä menetelmään soveltuva massankeitin |
| MXPA05003691A (es) | 2002-10-07 | 2005-11-17 | James Hardie Int Finance Bv | Material mixto de fibrocemento de densidad media durable. |
| RU2005124843A (ru) * | 2003-01-09 | 2006-01-20 | Джеймс Харди Интернейшенел Файненс Б.В. (Nl) | Волоконно-цементные композитные материалы с отбеленными целлюлозными волокнами |
| US7998571B2 (en) | 2004-07-09 | 2011-08-16 | James Hardie Technology Limited | Composite cement article incorporating a powder coating and methods of making same |
| US8412671B2 (en) * | 2004-08-13 | 2013-04-02 | Hewlett-Packard Development Company, L.P. | System and method for developing a star schema |
| MX2008013202A (es) | 2006-04-12 | 2009-01-09 | James Hardie Int Finance Bv | Elemento de construcción de refozado y sellado en superficies. |
| WO2011096857A1 (fr) * | 2010-02-02 | 2011-08-11 | Metso Paper Sweden Ab | Lessiveur continu à circulation de chauffage améliorée |
| AR088750A1 (es) * | 2011-08-30 | 2014-07-02 | Cargill Inc | Procesos de elaboracion de pulpa |
| CN102704296B (zh) * | 2012-07-09 | 2014-06-18 | 江苏联海生物科技有限公司 | 一种预处理秸秆类原料的工艺 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO115278B (fr) * | 1962-03-03 | 1968-09-09 | Kamyr Ab | |
| US3303088A (en) * | 1963-04-19 | 1967-02-07 | Lummus Co | Continuous liquid-phase rapid pulping |
| SE318180B (fr) * | 1967-05-16 | 1969-12-01 | Kamyr Ab | |
| SE344603B (fr) * | 1971-06-22 | 1972-04-24 | Kamyr Ab | |
| SE394466C (sv) * | 1974-05-16 | 1986-06-23 | Mannbro Systems Handelsbolag | Sett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tva eller flera steg, varav det sista med syrgas |
-
1979
- 1979-05-22 US US06/041,505 patent/US4274913A/en not_active Expired - Lifetime
- 1979-05-22 CA CA328,033A patent/CA1127357A/fr not_active Expired
- 1979-05-22 SE SE7904445A patent/SE445120B/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE7904445L (sv) | 1979-11-24 |
| US4274913A (en) | 1981-06-23 |
| CA1127357A (fr) | 1982-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
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| NUG | Patent has lapsed |
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