EP4165243C0 - Verfahren zur pechkontrolle während des bleichens - Google Patents

Verfahren zur pechkontrolle während des bleichens

Info

Publication number
EP4165243C0
EP4165243C0 EP21734378.9A EP21734378A EP4165243C0 EP 4165243 C0 EP4165243 C0 EP 4165243C0 EP 21734378 A EP21734378 A EP 21734378A EP 4165243 C0 EP4165243 C0 EP 4165243C0
Authority
EP
European Patent Office
Prior art keywords
control during
pitch control
during bleaching
bleaching
pitch
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP21734378.9A
Other languages
English (en)
French (fr)
Other versions
EP4165243A1 (de
EP4165243B1 (de
Inventor
Leif Robertsen
Jonas Konn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kemira Oyj
Original Assignee
Kemira Oyj
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
Application filed by Kemira Oyj filed Critical Kemira Oyj
Publication of EP4165243A1 publication Critical patent/EP4165243A1/de
Application granted granted Critical
Publication of EP4165243C0 publication Critical patent/EP4165243C0/de
Publication of EP4165243B1 publication Critical patent/EP4165243B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
    • 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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds
    • 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
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate pulp
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • D21H17/375—Poly(meth)acrylamide
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
    • D21H17/45—Nitrogen-containing groups
    • D21H17/455—Nitrogen-containing groups comprising tertiary amine or being at least partially quaternised

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
EP21734378.9A 2020-06-16 2021-06-14 Verfahren zur pechkontrolle während des bleichens Active EP4165243B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20205630 2020-06-16
PCT/FI2021/050441 WO2021255335A1 (en) 2020-06-16 2021-06-14 Method for pitch control during bleaching

Publications (3)

Publication Number Publication Date
EP4165243A1 EP4165243A1 (de) 2023-04-19
EP4165243C0 true EP4165243C0 (de) 2026-02-18
EP4165243B1 EP4165243B1 (de) 2026-02-18

Family

ID=76601236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21734378.9A Active EP4165243B1 (de) 2020-06-16 2021-06-14 Verfahren zur pechkontrolle während des bleichens

Country Status (6)

Country Link
US (1) US20230212821A1 (de)
EP (1) EP4165243B1 (de)
CN (1) CN115702272B (de)
BR (1) BR112022022809A2 (de)
CA (1) CA3178055A1 (de)
WO (1) WO2021255335A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4023813A1 (de) * 2020-12-29 2022-07-06 Technische Universität Wien Verfahren zur herstellung von produkten auf basis von holz als rohstoff

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655668B1 (fr) * 1989-12-11 1995-06-09 Du Pin Cellulose Procede de blanchiment de pates cellulosiques chimiques.
US5256252A (en) * 1992-07-15 1993-10-26 Nalco Chemical Company Method for controlling pitch deposits using lipase and cationic polymer
KR960037956A (ko) * 1995-04-17 1996-11-19 레이몬드 더블유. 캠벨 혼합 열대 경목 펄프로부터 핏치를 제거하는 방법
US5725779A (en) * 1996-10-03 1998-03-10 Cytec Technology Corp. Anionic water-soluble polymer precipitation in salt solution
ES2193633T3 (es) * 1999-07-16 2003-11-01 Nordland Papier Gmbh Procedimiento para la optimizacion de la dosificacion de agente de cambio de carga para pasta de papel recuperada.
GB0018314D0 (en) * 2000-07-27 2000-09-13 Ciba Spec Chem Water Treat Ltd Processes of reducing contamination from cellulosic suspensions
ES2300713T3 (es) * 2004-06-14 2008-06-16 Warwick International Group Limited Activador para el blanqueado de pasta de papel.
US20060000570A1 (en) * 2004-07-02 2006-01-05 Zhiqiang Song Amphoteric cationic polymers for controlling deposition of pitch and stickies in papermaking
JP5168826B2 (ja) * 2006-06-27 2013-03-27 栗田工業株式会社 ピッチコントロール剤及びピッチコントロール方法
US8980056B2 (en) * 2010-11-15 2015-03-17 Kemira Oyj Composition and process for increasing the dry strength of a paper product
FI125712B (en) * 2012-11-13 2016-01-15 Kemira Oyj Paper-making material and its use
FI126610B (en) * 2015-01-27 2017-03-15 Kemira Oyj Particulate polymer product and its use
PT3246466T (pt) * 2016-05-20 2018-05-09 Kemira Oyj Método e sistema de tratamento para fabricar papel
US20190203413A1 (en) * 2016-09-16 2019-07-04 Basf Se Methods of Modifying Pulp Comprising Cellulase Enzymes and Products Thereof
FI127289B (en) * 2016-11-22 2018-03-15 Kemira Oyj Use of a polymer product to control the formation of precipitates in the manufacture of paper or board
FI20165978L (fi) * 2016-12-16 2018-06-17 Kemira Oyj Menetelmä veden poistamiseksi lietteestä
WO2018232115A1 (en) * 2017-06-15 2018-12-20 Ecolab Usa Inc. Polymer for pitch and stickies deposition control in papermaking
PH12020550885A1 (en) * 2017-12-15 2021-04-12 Kemira Oyj Method for treating aqueous feed by dissolved gas flotation

Also Published As

Publication number Publication date
WO2021255335A1 (en) 2021-12-23
CN115702272B (zh) 2024-08-16
EP4165243A1 (de) 2023-04-19
EP4165243B1 (de) 2026-02-18
US20230212821A1 (en) 2023-07-06
BR112022022809A2 (pt) 2022-12-27
CA3178055A1 (en) 2021-12-23
CN115702272A (zh) 2023-02-14

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