FI20025023A - Förfarande vid en pappers- eller cellulosaprocess för att kontrollera kemisk status i ett massa- och bakvattensystem - Google Patents

Förfarande vid en pappers- eller cellulosaprocess för att kontrollera kemisk status i ett massa- och bakvattensystem

Info

Publication number
FI20025023A
FI20025023A FI20025023A FI20025023A FI20025023A FI 20025023 A FI20025023 A FI 20025023A FI 20025023 A FI20025023 A FI 20025023A FI 20025023 A FI20025023 A FI 20025023A FI 20025023 A FI20025023 A FI 20025023A
Authority
FI
Finland
Prior art keywords
pulp
paper
cellulose
tmp
reject
Prior art date
Application number
FI20025023A
Other languages
English (en)
Finnish (fi)
Other versions
FI20025023A0 (sv
Inventor
Sakari Laitinen-Vellonen
Original Assignee
Liqum Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FI20015022A external-priority patent/FI20015022A0/sv
Application filed by Liqum Oy filed Critical Liqum Oy
Priority to FI20025023A priority Critical patent/FI20025023A/sv
Publication of FI20025023A0 publication Critical patent/FI20025023A0/sv
Priority to US10/487,304 priority patent/US20040238140A1/en
Priority to PCT/FI2002/000684 priority patent/WO2003018908A1/en
Priority to CA2456538A priority patent/CA2456538C/en
Priority to EP02753105A priority patent/EP1430178B1/en
Priority to AT02753105T priority patent/ATE357556T1/de
Priority to DE60219046T priority patent/DE60219046T2/de
Publication of FI20025023A publication Critical patent/FI20025023A/sv

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0009—Paper-making control systems
    • D21G9/0018—Paper-making control systems controlling the stock preparation
    • 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
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/78—Controlling or regulating not limited to any particular process or apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/08—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
FI20025023A 2001-08-21 2002-05-17 Förfarande vid en pappers- eller cellulosaprocess för att kontrollera kemisk status i ett massa- och bakvattensystem FI20025023A (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI20025023A FI20025023A (sv) 2001-08-21 2002-05-17 Förfarande vid en pappers- eller cellulosaprocess för att kontrollera kemisk status i ett massa- och bakvattensystem
US10/487,304 US20040238140A1 (en) 2001-08-21 2002-08-21 Method in a paper or pulp process to control the chemical state of the pulp and circulation water system
PCT/FI2002/000684 WO2003018908A1 (en) 2001-08-21 2002-08-21 Method in a paper or pulp process to control the chemical state of the pulp and circulation water system
CA2456538A CA2456538C (en) 2001-08-21 2002-08-21 Method in a paper or pulp process to control the chemical state of the pulp and circulation water system
EP02753105A EP1430178B1 (en) 2001-08-21 2002-08-21 Method in a paper or pulp process to control the chemical state of the pulp and circulation water system
AT02753105T ATE357556T1 (de) 2001-08-21 2002-08-21 Die papier- bzw. halbstoffherstellung begleitendes verfahren zur steuerung des chemischen zustands des halbstoff- und kreislaufwassersystems
DE60219046T DE60219046T2 (de) 2001-08-21 2002-08-21 Die papier- bzw. halbstoffherstellung begleitendes verfahren zur steuerung des chemischen zustands des halbstoff- und kreislaufwassersystems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20015022A FI20015022A0 (sv) 2001-08-21 2001-08-21 Förfarande vid framställning av papper eller kartong
FI20025023A FI20025023A (sv) 2001-08-21 2002-05-17 Förfarande vid en pappers- eller cellulosaprocess för att kontrollera kemisk status i ett massa- och bakvattensystem

Publications (2)

Publication Number Publication Date
FI20025023A0 FI20025023A0 (sv) 2002-05-17
FI20025023A true FI20025023A (sv) 2003-02-22

Family

ID=26161249

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20025023A FI20025023A (sv) 2001-08-21 2002-05-17 Förfarande vid en pappers- eller cellulosaprocess för att kontrollera kemisk status i ett massa- och bakvattensystem

Country Status (7)

Country Link
US (1) US20040238140A1 (sv)
EP (1) EP1430178B1 (sv)
AT (1) ATE357556T1 (sv)
CA (1) CA2456538C (sv)
DE (1) DE60219046T2 (sv)
FI (1) FI20025023A (sv)
WO (1) WO2003018908A1 (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20051096A (sv) * 2005-10-31 2007-05-01 Savcor Process Oy Förfarande i ett våtparti i en pappersmaskin, kartongmaskin eller annan motsvarande formeringsmaskin
FI123392B (sv) * 2008-02-22 2013-03-28 Upm Kymmene Oyj Förfarande för utfällning av kalciumkarbonat i samband med en fiberbanaprocess och en inflödessystem för en fibermaskin
WO2011149797A1 (en) * 2010-05-22 2011-12-01 Eltron Research & Development Inc. Paper dewatering
DE102010041052A1 (de) * 2010-09-20 2012-03-22 Voith Patent Gmbh Verfahren zum Regeln der Formation einer Faserstoffbahn
DE102011083709A1 (de) * 2011-09-29 2013-04-04 Voith Patent Gmbh Betriebsverfahren für eine Stoffaufbereitung
JP6562157B2 (ja) * 2016-08-31 2019-08-21 セイコーエプソン株式会社 シート製造装置、及び、シート製造装置の制御方法
JP7211022B2 (ja) * 2018-11-07 2023-01-24 セイコーエプソン株式会社 ウェブ製造装置およびシート製造装置
CA3120408A1 (en) * 2018-11-27 2020-06-04 Kemira Oyj Method for estimating the vapor phase corrosion load

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876497A (en) * 1971-11-23 1975-04-08 Sterling Drug Inc Paper mill waste sludge oxidation and product recovery
DE2746179A1 (de) * 1977-10-14 1979-04-19 Bayer Ag Verfahren zur messung des ladungszustandes von suspensionen und zur steuerung der zugabe von hilfsmitteln zu suspensionen
SE442414B (sv) * 1981-09-22 1985-12-23 Holmens Bruk Ab Sett att minska eller inhibera morkfergningen av massa eller papper i bakvattensystem
DE3276195D1 (en) * 1981-11-09 1987-06-04 Wiggins Teape Group Ltd Apparatus for determining an electrical characteristic of a fibrous dispersion
US4752356A (en) * 1985-10-18 1988-06-21 Miami University Papermaking process
US6072309A (en) * 1996-12-13 2000-06-06 Honeywell-Measurex Corporation, Inc. Paper stock zeta potential measurement and control
US5936151A (en) * 1997-12-22 1999-08-10 International Paper Company Method and apparatus for measuring an electrical property of papermaking furnish
US6176974B1 (en) * 1997-12-22 2001-01-23 International Paper Company Method for determining electrokinetic properties of papermaking furnish
US6086716A (en) * 1998-05-11 2000-07-11 Honeywell-Measurex Corporation Wet end control for papermaking machine
FI113089B (sv) * 1999-10-06 2004-02-27 Liqum Oy Förfarande för analysering av framställningsprocessen av papper och en elektrokemisk givare för analysering av vätska
EP1290507B1 (en) * 2000-04-05 2004-09-08 Liqum OY Method and system for monitoring and analyzing a paper manufacturing process
US7056419B2 (en) * 2002-09-30 2006-06-06 American Air Liquide, Inc. Methods for modifying electrical properties of papermaking compositions using carbon dioxide
FI20021901A0 (sv) * 2002-10-24 2002-10-24 Liqum Oy Förfarande för kontrollering av en process

Also Published As

Publication number Publication date
DE60219046T2 (de) 2007-12-13
ATE357556T1 (de) 2007-04-15
EP1430178B1 (en) 2007-03-21
CA2456538C (en) 2010-04-27
US20040238140A1 (en) 2004-12-02
FI20025023A0 (sv) 2002-05-17
CA2456538A1 (en) 2003-03-06
WO2003018908A1 (en) 2003-03-06
DE60219046D1 (de) 2007-05-03
EP1430178A1 (en) 2004-06-23

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: LIQUM PAPER OY

Free format text: LIQUM PAPER OY