ES3063911T3 - Method for pitch control during bleaching - Google Patents

Method for pitch control during bleaching

Info

Publication number
ES3063911T3
ES3063911T3 ES21734378T ES21734378T ES3063911T3 ES 3063911 T3 ES3063911 T3 ES 3063911T3 ES 21734378 T ES21734378 T ES 21734378T ES 21734378 T ES21734378 T ES 21734378T ES 3063911 T3 ES3063911 T3 ES 3063911T3
Authority
ES
Spain
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
ES21734378T
Other languages
Spanish (es)
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
Application granted granted Critical
Publication of ES3063911T3 publication Critical patent/ES3063911T3/en
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)
ES21734378T 2020-06-16 2021-06-14 Method for pitch control during bleaching Active ES3063911T3 (en)

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 (1)

Publication Number Publication Date
ES3063911T3 true ES3063911T3 (en) 2026-04-21

Family

ID=76601236

Family Applications (1)

Application Number Title Priority Date Filing Date
ES21734378T Active ES3063911T3 (en) 2020-06-16 2021-06-14 Method for pitch control during bleaching

Country Status (7)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4023813A1 (en) * 2020-12-29 2022-07-06 Technische Universität Wien Method for producing wood-based products

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655668B1 (en) * 1989-12-11 1995-06-09 Du Pin Cellulose PROCESS FOR BLEACHING CHEMICAL CELLULOSIC PASTA.
US5256252A (en) * 1992-07-15 1993-10-26 Nalco Chemical Company Method for controlling pitch deposits using lipase and cationic polymer
KR960037956A (en) * 1995-04-17 1996-11-19 레이몬드 더블유. 캠벨 How to Remove Pitch from Mixed Tropical Hardwood Pulp
US5725779A (en) * 1996-10-03 1998-03-10 Cytec Technology Corp. Anionic water-soluble polymer precipitation in salt solution
PT1070783E (en) * 1999-07-16 2003-07-31 Nordland Papier Gmbh PROCESS FOR OPTIMIZING THE DETERMINATION OF PAPER WASTE TRANSFER SUBSTANCES
GB0018314D0 (en) * 2000-07-27 2000-09-13 Ciba Spec Chem Water Treat Ltd Processes of reducing contamination from cellulosic suspensions
PT1607519E (en) * 2004-06-14 2008-04-16 Warwick Internat Group Ltd Activator for pulp bleaching
US20060000570A1 (en) * 2004-07-02 2006-01-05 Zhiqiang Song Amphoteric cationic polymers for controlling deposition of pitch and stickies in papermaking
JP5168826B2 (en) * 2006-06-27 2013-03-27 栗田工業株式会社 Pitch control agent and pitch control method
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 Means for making paper and using it
FI126610B (en) * 2015-01-27 2017-03-15 Kemira Oyj Particle polymer product and its use
EP3246466B1 (en) * 2016-05-20 2018-02-28 Kemira Oyj Method and treatment system for making of paper
EP3512995A2 (en) * 2016-09-16 2019-07-24 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 for controlling precipitation in the manufacture of paper or paperboard
FI20165978L (en) * 2016-12-16 2018-06-17 Kemira Oyj Sludge dewatering procedure
WO2018232115A1 (en) * 2017-06-15 2018-12-20 Ecolab Usa Inc. Polymer for pitch and stickies deposition control in papermaking
JP7259188B2 (en) * 2017-12-15 2023-04-18 ケミラ・オーワイジェイ Method for treating aqueous feeds by dissolved gas flotation

Also Published As

Publication number Publication date
CN115702272B (en) 2024-08-16
EP4165243C0 (en) 2026-02-18
EP4165243A1 (en) 2023-04-19
CA3178055A1 (en) 2021-12-23
CN115702272A (en) 2023-02-14
BR112022022809A2 (en) 2022-12-27
EP4165243B1 (en) 2026-02-18
WO2021255335A1 (en) 2021-12-23
US20230212821A1 (en) 2023-07-06

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