SE0002789D0 - Method and device for measuring bleach requirement, bleachability, and effectivness of hemicellulase treatment of pulp - Google Patents
Method and device for measuring bleach requirement, bleachability, and effectivness of hemicellulase treatment of pulpInfo
- Publication number
- SE0002789D0 SE0002789D0 SE0002789A SE0002789A SE0002789D0 SE 0002789 D0 SE0002789 D0 SE 0002789D0 SE 0002789 A SE0002789 A SE 0002789A SE 0002789 A SE0002789 A SE 0002789A SE 0002789 D0 SE0002789 D0 SE 0002789D0
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- measuring
- bleachability
- effectiveness
- bleach
- Prior art date
Links
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
- D21C9/1026—Other features in bleaching processes
- D21C9/1052—Controlling the process
-
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/09—Uses for paper making sludge
- Y10S162/10—Computer control of paper making variables
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/016,425 US6273994B1 (en) | 1998-01-30 | 1998-01-30 | Method and device for measuring bleach requirement, bleachability, and effectivenss of hemicellulase enzyme treatment of pulp |
| PCT/CA1999/000050 WO1999039044A1 (en) | 1998-01-30 | 1999-01-29 | Method and device for measuring bleach requirement, bleachability, and effectiveness of hemicellulase enzyme treatment of pulp |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE0002789D0 true SE0002789D0 (sv) | 2000-07-28 |
| SE0002789L SE0002789L (sv) | 2000-09-20 |
| SE522990C2 SE522990C2 (sv) | 2004-03-23 |
Family
ID=21777059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0002789A SE522990C2 (sv) | 1998-01-30 | 2000-07-28 | Förfarande och anordning för uppmätning av blekningsbehov, blekbarhet och effektivitet hos hemicellulasenzymbehandling av massa |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6273994B1 (sv) |
| AU (1) | AU2145699A (sv) |
| BR (1) | BR9908149A (sv) |
| CA (1) | CA2319074C (sv) |
| FI (1) | FI20001713A7 (sv) |
| SE (1) | SE522990C2 (sv) |
| WO (1) | WO1999039044A1 (sv) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6506435B1 (en) * | 1999-11-03 | 2003-01-14 | Regents Of The University Of Minnesota | Cellulose fiber-based compositions and their method of manufacture |
| FI116699B (sv) | 2000-01-21 | 2006-01-31 | Metso Automation Oy | Förfarande och mätanordning för mätning av suspension |
| WO2003030916A1 (en) | 2001-10-12 | 2003-04-17 | Regents Of The University Of Minnesota | Medical and nutritional applications of highly refined cellulose |
| US7074299B2 (en) * | 2002-05-01 | 2006-07-11 | Fort James Corporation | Process for using a phloroglucinol color delta to control blending, deinking and bleaching of groundwood-containing secondary pulp |
| CA2447098A1 (en) * | 2003-10-28 | 2005-04-28 | Centre De Recherche Industrielle Du Quebec | Method for estimating an optimal dosage of bleaching agent to be mixed with wood chips |
| DE102006027005A1 (de) * | 2006-06-08 | 2007-12-13 | Voith Patent Gmbh | Lignocellulosischer Faserstoff aus Holz |
| US20080087390A1 (en) * | 2006-10-11 | 2008-04-17 | Fort James Corporation | Multi-step pulp bleaching |
| US9339058B2 (en) * | 2012-04-19 | 2016-05-17 | R. J. Reynolds Tobacco Company | Method for producing microcrystalline cellulose from tobacco and related tobacco product |
| EP3047065A1 (en) * | 2013-09-20 | 2016-07-27 | Novozymes A/S | Enzymatic bleaching of paper pulp |
| CA2970645C (en) * | 2014-12-12 | 2022-05-31 | Canfor Pulp Ltd | Method and apparatus for controlling a cellulosic pulp process |
| US10400392B2 (en) | 2015-10-05 | 2019-09-03 | Valmet Automation Oy | Measurement apparatus and method |
| CN108613944A (zh) * | 2018-08-20 | 2018-10-02 | 扬州大学 | 一种准确检测芍药花茎强度的方法 |
| US11591751B2 (en) | 2019-09-17 | 2023-02-28 | Gpcp Ip Holdings Llc | High efficiency fiber bleaching process |
| US12286751B2 (en) | 2021-01-06 | 2025-04-29 | Gpcp Ip Holdings Llc | Oxygen treatment of high kappa fibers |
| US12435469B2 (en) | 2022-02-22 | 2025-10-07 | Gpcp Ip Holdings Llc | High yield chemical pulping and bleaching process |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1827658A (en) * | 1929-08-07 | 1931-10-13 | Hammermill Paper Co | Method and apparatus for determining the result of treatment of material |
| US3436302A (en) * | 1965-09-02 | 1969-04-01 | Dow Chemical Co | Method of bleaching groundwood pulp web with acid |
| US3764463A (en) * | 1971-06-14 | 1973-10-09 | Int Paper Canada | Method and apparatus for chromatic control of pulping process |
| US3781188A (en) * | 1972-02-22 | 1973-12-25 | Ellett Copper And Brass Co Ltd | Experimental research pulp digester assembly |
| US4013506A (en) | 1974-07-22 | 1977-03-22 | Canadian International Paper Company | Method and apparatus for automatically and simultaneously controlling solution viscosity and brightness of a pulp during multi-stage bleaching |
| US4192708A (en) | 1974-09-05 | 1980-03-11 | Mo Och Domsjo Aktiebolag | Method for controlling the addition of active chemical for delignifying and/or bleaching cellulose pulp suspended in a liquor containing chemicals reactive with the delignifying and/or bleaching chemical |
| US3968006A (en) * | 1975-02-03 | 1976-07-06 | Westvaco Corporation | Pulp bleaching process control using photocells to measure pulp brightness |
| US4193840A (en) * | 1978-08-30 | 1980-03-18 | International Paper Company | Laboratory minidigesters and method of using the minidigesters |
| SE455822B (sv) | 1985-12-03 | 1988-08-08 | Mo Och Domsjoe Ab | Forfarande for att meta kemikaliehalten i blekvetska inom cellulosamassaindustrin samt apparatur for genomforande av forfarandet |
| US4837446A (en) * | 1988-03-31 | 1989-06-06 | International Paper Company | Apparatus and process for testing uniformity of pulp |
| US5154087A (en) * | 1990-01-29 | 1992-10-13 | Intersystems, Inc. | Sampler apparatus |
| FI108800B (sv) | 1991-05-07 | 2002-03-28 | Iogen Corp | Förfarande och anordning för användning av enzymer vid framställning och blekning av pappersmassa |
| SE507486C3 (sv) * | 1991-09-12 | 1998-07-13 | Valmet Automation Kajaani Ltd | Foerfarande och anordning foer maetning av fiberegenskaper med naera-infra-roed-spektroskopi |
| JPH06269297A (ja) | 1993-03-19 | 1994-09-27 | Nippon Paper Ind Co Ltd | 脱リグニン酵素生産菌の判定方法 |
| SE503644C2 (sv) | 1994-10-14 | 1996-07-22 | Eka Chemicals Ab | Sätt att bestämma halten organiskt material i effluenter från massa- och pappersbruk |
| US5611891A (en) * | 1995-12-08 | 1997-03-18 | Westvaco Corporation | System and method for controlling papermaking stock consistency |
| US5735004A (en) * | 1996-05-13 | 1998-04-07 | Wooten; Duane A. | Water resistant baby blanket assembly |
-
1998
- 1998-01-30 US US09/016,425 patent/US6273994B1/en not_active Expired - Fee Related
-
1999
- 1999-01-29 BR BR9908149-0A patent/BR9908149A/pt not_active IP Right Cessation
- 1999-01-29 CA CA002319074A patent/CA2319074C/en not_active Expired - Fee Related
- 1999-01-29 WO PCT/CA1999/000050 patent/WO1999039044A1/en not_active Ceased
- 1999-01-29 AU AU21456/99A patent/AU2145699A/en not_active Abandoned
-
2000
- 2000-07-26 FI FI20001713A patent/FI20001713A7/sv unknown
- 2000-07-28 SE SE0002789A patent/SE522990C2/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE0002789L (sv) | 2000-09-20 |
| CA2319074A1 (en) | 1999-08-05 |
| CA2319074C (en) | 2009-03-10 |
| WO1999039044A1 (en) | 1999-08-05 |
| WO1999039044B1 (en) | 1999-11-04 |
| SE522990C2 (sv) | 2004-03-23 |
| FI20001713L (sv) | 2000-08-23 |
| BR9908149A (pt) | 2005-10-04 |
| AU2145699A (en) | 1999-08-16 |
| FI20001713A7 (sv) | 2000-08-23 |
| US6273994B1 (en) | 2001-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |