CA3178055A1 - Procede de controle de poix pendant le blanchiment - Google Patents

Procede de controle de poix pendant le blanchiment Download PDF

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Publication number
CA3178055A1
CA3178055A1 CA3178055A CA3178055A CA3178055A1 CA 3178055 A1 CA3178055 A1 CA 3178055A1 CA 3178055 A CA3178055 A CA 3178055A CA 3178055 A CA3178055 A CA 3178055A CA 3178055 A1 CA3178055 A1 CA 3178055A1
Authority
CA
Canada
Prior art keywords
cationic
mol
pitch control
pitch
control agent
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.)
Pending
Application number
CA3178055A
Other languages
English (en)
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 CA3178055A1 publication Critical patent/CA3178055A1/fr
Pending legal-status Critical Current

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)

Abstract

L'invention se rapporte à un procédé de contrôle et/ou d'élimination de poix lors du blanchiment de fibres cellulosiques. Des fibres cellulosiques sont obtenues à partir d'un procédé de réduction en pâte et formées dans une suspension aqueuse de fibres cellulosiques, et le blanchiment de la suspension de fibres cellulosiques est effectué dans un procédé de blanchiment comprenant au moins un stade acide, le pH de la suspension de fibres cellulosiques étant inférieur à 6. Un agent de contrôle de poix est ajouté à la suspension de fibres cellulosiques avant le stade acide, l'agent de contrôle de poix comprenant au moins un polymère cationique comprenant des groupes fonctionnels cationiques qui sont hydrolysés à un pH de 9,0.
CA3178055A 2020-06-16 2021-06-14 Procede de controle de poix pendant le blanchiment Pending CA3178055A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20205630 2020-06-16
FI20205630 2020-06-16
PCT/FI2021/050441 WO2021255335A1 (fr) 2020-06-16 2021-06-14 Procédé de contrôle de poix pendant le blanchiment

Publications (1)

Publication Number Publication Date
CA3178055A1 true CA3178055A1 (fr) 2021-12-23

Family

ID=76601236

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3178055A Pending CA3178055A1 (fr) 2020-06-16 2021-06-14 Procede de controle de poix pendant le blanchiment

Country Status (7)

Country Link
US (1) US20230212821A1 (fr)
EP (1) EP4165243B1 (fr)
CN (1) CN115702272B (fr)
BR (1) BR112022022809A2 (fr)
CA (1) CA3178055A1 (fr)
ES (1) ES3063911T3 (fr)
WO (1) WO2021255335A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4023813A1 (fr) * 2020-12-29 2022-07-06 Technische Universität Wien Procédé de fabrication de produits à base de bois comme matière première

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
PT1070783E (pt) * 1999-07-16 2003-07-31 Nordland Papier Gmbh Processo para optimizacao do doseamento de substancias de transferencia de residuos de papel
GB0018314D0 (en) * 2000-07-27 2000-09-13 Ciba Spec Chem Water Treat Ltd Processes of reducing contamination from cellulosic suspensions
PT1607519E (pt) * 2004-06-14 2008-04-16 Warwick Internat Group Ltd Activador para branqueamento de pasta
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
EP3246466B1 (fr) * 2016-05-20 2018-02-28 Kemira Oyj Procédé et système de traitement destinés à fabriquer du papier
EP3512995A2 (fr) * 2016-09-16 2019-07-24 Basf Se Procédés de modification de pâte comprenant des enzymes cellulases et produits associé
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 (fr) * 2017-06-15 2018-12-20 Ecolab Usa Inc. Polymère destiné à réguler le dépôt de poix et d'impuretés collantes dans la fabrication du papier
JP7259188B2 (ja) * 2017-12-15 2023-04-18 ケミラ・オーワイジェイ 溶解ガス浮上分離によって水性フィードを処理するための方法

Also Published As

Publication number Publication date
CN115702272B (zh) 2024-08-16
EP4165243C0 (fr) 2026-02-18
EP4165243A1 (fr) 2023-04-19
ES3063911T3 (en) 2026-04-21
CN115702272A (zh) 2023-02-14
BR112022022809A2 (pt) 2022-12-27
EP4165243B1 (fr) 2026-02-18
WO2021255335A1 (fr) 2021-12-23
US20230212821A1 (en) 2023-07-06

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