FI117391B - Menetelmä ja laitteisto massan käsittelemiseksi - Google Patents
Menetelmä ja laitteisto massan käsittelemiseksi Download PDFInfo
- Publication number
- FI117391B FI117391B FI20001169A FI20001169A FI117391B FI 117391 B FI117391 B FI 117391B FI 20001169 A FI20001169 A FI 20001169A FI 20001169 A FI20001169 A FI 20001169A FI 117391 B FI117391 B FI 117391B
- Authority
- FI
- Finland
- Prior art keywords
- filtrate
- oxygen
- washing
- pulp
- chemical
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 49
- 238000004537 pulping Methods 0.000 title claims description 10
- 239000001301 oxygen Substances 0.000 claims description 151
- 229910052760 oxygen Inorganic materials 0.000 claims description 151
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 146
- 238000005406 washing Methods 0.000 claims description 99
- 239000000706 filtrate Substances 0.000 claims description 97
- 239000000126 substance Substances 0.000 claims description 46
- 230000003647 oxidation Effects 0.000 claims description 28
- 238000007254 oxidation reaction Methods 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 27
- 230000008569 process Effects 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000004061 bleaching Methods 0.000 claims description 17
- 230000001590 oxidative effect Effects 0.000 claims description 17
- 238000010411 cooking Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000005201 scrubbing Methods 0.000 claims description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 206010067484 Adverse reaction Diseases 0.000 claims description 2
- 230000006838 adverse reaction Effects 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000011368 organic material Substances 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims 2
- 238000006213 oxygenation reaction Methods 0.000 claims 1
- 239000012071 phase Substances 0.000 description 71
- 239000000243 solution Substances 0.000 description 15
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 12
- 239000000835 fiber Substances 0.000 description 12
- 150000002978 peroxides Chemical class 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 229920005610 lignin Polymers 0.000 description 5
- 235000014347 soups Nutrition 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 235000014633 carbohydrates Nutrition 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- CNJLMVZFWLNOEP-UHFFFAOYSA-N 4,7,7-trimethylbicyclo[4.1.0]heptan-5-one Chemical compound O=C1C(C)CCC2C(C)(C)C12 CNJLMVZFWLNOEP-UHFFFAOYSA-N 0.000 description 1
- 240000007124 Brassica oleracea Species 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000011301 Brassica oleracea var capitata Nutrition 0.000 description 1
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 230000002051 biphasic effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012412 chemical coupling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000779 depleting effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- -1 peroxide compounds Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- ZMRUPTIKESYGQW-UHFFFAOYSA-N propranolol hydrochloride Chemical compound [H+].[Cl-].C1=CC=C2C(OCC(O)CNC(C)C)=CC=CC2=C1 ZMRUPTIKESYGQW-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002023 wood 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
- 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
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
- D21C11/0028—Effluents derived from the washing or bleaching plants
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20001169A FI117391B (fi) | 2000-05-16 | 2000-05-16 | Menetelmä ja laitteisto massan käsittelemiseksi |
| SE0101676A SE521379C2 (sv) | 2000-05-16 | 2001-05-14 | Behandling av massa för att förhindra skadliga reaktioner |
| CA002347454A CA2347454C (en) | 2000-05-16 | 2001-05-15 | Method and apparatus for treating pulp |
| US09/855,022 US6733625B2 (en) | 2000-05-16 | 2001-05-15 | Method and apparatus for treating pulp |
| SE0301389A SE0301389L (sv) | 2000-05-16 | 2003-05-14 | Förfarande och anordning för behandlnig av massa |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20001169 | 2000-05-16 | ||
| FI20001169A FI117391B (fi) | 2000-05-16 | 2000-05-16 | Menetelmä ja laitteisto massan käsittelemiseksi |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FI117391B true FI117391B (fi) | 2006-09-29 |
Family
ID=8558403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20001169A FI117391B (fi) | 2000-05-16 | 2000-05-16 | Menetelmä ja laitteisto massan käsittelemiseksi |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6733625B2 (xx) |
| CA (1) | CA2347454C (xx) |
| FI (1) | FI117391B (xx) |
| SE (2) | SE521379C2 (xx) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6752903B2 (en) * | 2001-07-27 | 2004-06-22 | Craig A. Bianchini | Method for mitigating the interference caused by high-molecular weight by-products in pulping processes |
| US8138106B2 (en) | 2005-09-30 | 2012-03-20 | Rayonier Trs Holdings Inc. | Cellulosic fibers with odor control characteristics |
| US7854847B2 (en) * | 2006-11-09 | 2010-12-21 | Rayonier Trs Holdings Inc. | Process of purifying wood pulp with caustic-borate solution and recovering the purifying chemical |
| WO2008106083A2 (en) * | 2007-02-26 | 2008-09-04 | Andritz Inc. | Methods and systems for the use of recycled filtrate in bleaching pulp |
| FI123023B (fi) * | 2009-09-01 | 2012-10-15 | Andritz Oy | Menetelmä ja laitteisto suovan erottamiseksi |
| US20110108222A1 (en) * | 2009-11-11 | 2011-05-12 | International Paper Company | Effect of low dose xylanase on pulp in prebleach treatment process |
| FI126551B (fi) * | 2009-11-25 | 2017-02-15 | Andritz Oy | Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla |
| US8753477B2 (en) * | 2010-03-23 | 2014-06-17 | International Paper Company | BCTMP filtrate recycling system and method |
| WO2015197917A1 (en) * | 2014-06-23 | 2015-12-30 | Metsä Fibre Oy | Method of delignifying fibrous suspensions of alkaline cooking |
| SE545759C2 (en) * | 2022-06-20 | 2024-01-02 | Valmet Oy | Method for bleaching pulp from recycled textile material |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI52876C (fi) * | 1974-09-03 | 1978-10-17 | Ahlstroem Oy | Foerfarande foer tvaettning av en cellulosamassa fraon alkalikok |
| US4297164A (en) * | 1980-03-10 | 1981-10-27 | Weyerhaeuser Company | Process for displacement washing of porous media |
| US4810328A (en) * | 1984-07-13 | 1989-03-07 | Diamond Shamrock Chemicals Company | Method of brown stock washing |
| US5429717A (en) * | 1986-12-22 | 1995-07-04 | Aga Aktiebolag | Method of washing of alkaline pulp by adding carbon dioxide to the pulp |
| US5217575A (en) | 1988-10-18 | 1993-06-08 | Kamyr Ab | Process for oxygen bleaching using two vertical reactors |
| US4956048A (en) * | 1989-04-17 | 1990-09-11 | Westvaco Corporation | Method of alcohol washing brownstock pulp prior to a chlorination bleaching stage |
| US5246543A (en) * | 1989-08-18 | 1993-09-21 | Degussa Corporation | Process for bleaching and delignification of lignocellulosic materials |
| GB9021126D0 (en) * | 1990-09-28 | 1990-11-14 | Dorset Ind Chemicals Ltd | Improved washing process |
| US5853535A (en) * | 1991-01-28 | 1998-12-29 | Champion International Corporation | Process for manufacturing bleached pulp including recycling |
| US6106667A (en) | 1992-02-21 | 2000-08-22 | Ahlstrom Machinery Inc. | Treatment of recycled bleach plant filtrates |
| US5360514A (en) | 1992-02-21 | 1994-11-01 | Kamyr, Inc. | Treatment of bleach plant filtrations using a magnesium filter |
| EP0564443A1 (en) | 1992-03-15 | 1993-10-06 | Kamyr, Inc. | Treatment of bleach plant filtrates |
| FI98224B (fi) | 1993-09-15 | 1997-01-31 | Ahlstrom Machinery Oy | Menetelmä massan valkaisemiseksi |
| CA2170553A1 (en) | 1995-05-05 | 1996-11-06 | C. Bertil Stromberg | Treatment of filtrates in peroxide bleaching of pulp |
| SE505141C2 (sv) | 1995-10-23 | 1997-06-30 | Sunds Defibrator Ind Ab | Syrgasdelignifiering av massa i två steg med hög satsning av alkali och syrgas och temperatur under 90 C i första steget |
| US5783037A (en) * | 1996-08-22 | 1998-07-21 | Mg Industries | System and method for operating a pulp mill |
| SE9604802L (sv) | 1996-12-27 | 1998-06-28 | Aga Ab | Förfarande för behandling av cellulosafibrer |
-
2000
- 2000-05-16 FI FI20001169A patent/FI117391B/fi not_active IP Right Cessation
-
2001
- 2001-05-14 SE SE0101676A patent/SE521379C2/sv unknown
- 2001-05-15 US US09/855,022 patent/US6733625B2/en not_active Expired - Fee Related
- 2001-05-15 CA CA002347454A patent/CA2347454C/en not_active Expired - Fee Related
-
2003
- 2003-05-14 SE SE0301389A patent/SE0301389L/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE0301389D0 (sv) | 2003-05-14 |
| SE0101676D0 (sv) | 2001-05-14 |
| CA2347454C (en) | 2006-02-07 |
| CA2347454A1 (en) | 2001-11-16 |
| US6733625B2 (en) | 2004-05-11 |
| SE521379C2 (sv) | 2003-10-28 |
| SE0301389L (sv) | 2003-05-14 |
| US20020088567A1 (en) | 2002-07-11 |
| SE0101676L (xx) | 2001-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Ref document number: 117391 Country of ref document: FI |
|
| MD | Opposition filed |
Opponent name: METSO PAPER SUNDSVALL AB |
|
| MFDR | Revocation of patent |