SE522990C2 - Förfarande och anordning för uppmätning av blekningsbehov, blekbarhet och effektivitet hos hemicellulasenzymbehandling av massa - Google Patents
Förfarande och anordning för uppmätning av blekningsbehov, blekbarhet och effektivitet hos hemicellulasenzymbehandling av massaInfo
- Publication number
- SE522990C2 SE522990C2 SE0002789A SE0002789A SE522990C2 SE 522990 C2 SE522990 C2 SE 522990C2 SE 0002789 A SE0002789 A SE 0002789A SE 0002789 A SE0002789 A SE 0002789A SE 522990 C2 SE522990 C2 SE 522990C2
- Authority
- SE
- Sweden
- Prior art keywords
- bleaching
- pulp
- reaction chamber
- whiteness
- pulp sample
- 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 (fr) | 1998-01-30 | 1999-01-29 | Procede et dispositif pour mesurer les besoins en blanchiment et l'aptitude au blanchiment d'une pate a papier, ainsi que l'efficacite d'un traitement enzymatique a l'hemicellulase sur une pate a papier |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0002789D0 SE0002789D0 (sv) | 2000-07-28 |
SE0002789L SE0002789L (sv) | 2000-09-20 |
SE522990C2 true 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 (fr) |
AU (1) | AU2145699A (fr) |
BR (1) | BR9908149A (fr) |
CA (1) | CA2319074C (fr) |
FI (1) | FI20001713A (fr) |
SE (1) | SE522990C2 (fr) |
WO (1) | WO1999039044A1 (fr) |
Families Citing this family (14)
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 (fi) | 2000-01-21 | 2006-01-31 | Metso Automation Oy | Menetelmä ja mittalaite mitata suspensiota |
WO2003030916A1 (fr) | 2001-10-12 | 2003-04-17 | Regents Of The University Of Minnesota | Applications medicales et nutritionnelles de cellulose hautement raffinee |
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 (fr) * | 2003-10-28 | 2005-04-28 | Centre De Recherche Industrielle Du Quebec | Methode d'estimation du dosage optimal d'agent de blanchiment a melanger a des copeaux de bois |
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 |
WO2015039962A1 (fr) * | 2013-09-20 | 2015-03-26 | Novozymes A/S | Blanchiment enzymatique de pulpe de papier |
WO2016090455A1 (fr) * | 2014-12-12 | 2016-06-16 | Canfor Pulp Ltd | Procédé et appareil de commande de processus de pâte cellulosique |
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 |
US20220213648A1 (en) * | 2021-01-06 | 2022-07-07 | Gpcp Ip Holdings Llc | Oxygen Treatment of High Kappa Fibers |
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 (fi) | 1991-05-07 | 2002-03-28 | Iogen Corp | Menetelmä ja laitteisto entsyymin käyttämiseksi paperimassan valmistuksessa ja valkaisussa |
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 WO PCT/CA1999/000050 patent/WO1999039044A1/fr active Application Filing
- 1999-01-29 CA CA002319074A patent/CA2319074C/fr not_active Expired - Fee Related
- 1999-01-29 AU AU21456/99A patent/AU2145699A/en not_active Abandoned
- 1999-01-29 BR BR9908149-0A patent/BR9908149A/pt not_active IP Right Cessation
-
2000
- 2000-07-26 FI FI20001713A patent/FI20001713A/fi unknown
- 2000-07-28 SE SE0002789A patent/SE522990C2/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1999039044B1 (fr) | 1999-11-04 |
AU2145699A (en) | 1999-08-16 |
SE0002789D0 (sv) | 2000-07-28 |
FI20001713A (fi) | 2000-08-23 |
US6273994B1 (en) | 2001-08-14 |
WO1999039044A1 (fr) | 1999-08-05 |
CA2319074C (fr) | 2009-03-10 |
BR9908149A (pt) | 2005-10-04 |
SE0002789L (sv) | 2000-09-20 |
CA2319074A1 (fr) | 1999-08-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |