EP4291708C0 - Verfahren für ein chemisch unterstütztes mechanisches aufschlussverfahren von hackschnitzeln bzw. hackspänen - Google Patents

Verfahren für ein chemisch unterstütztes mechanisches aufschlussverfahren von hackschnitzeln bzw. hackspänen

Info

Publication number
EP4291708C0
EP4291708C0 EP22702851.1A EP22702851A EP4291708C0 EP 4291708 C0 EP4291708 C0 EP 4291708C0 EP 22702851 A EP22702851 A EP 22702851A EP 4291708 C0 EP4291708 C0 EP 4291708C0
Authority
EP
European Patent Office
Prior art keywords
chips
digestation
supported mechanical
chemically supported
wood chips
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
EP22702851.1A
Other languages
English (en)
French (fr)
Other versions
EP4291708A1 (de
EP4291708B1 (de
Inventor
Juha Fiskari
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.)
Mondi AG
Original Assignee
Mondi AG
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 Mondi AG filed Critical Mondi AG
Publication of EP4291708A1 publication Critical patent/EP4291708A1/de
Application granted granted Critical
Publication of EP4291708C0 publication Critical patent/EP4291708C0/de
Publication of EP4291708B1 publication Critical patent/EP4291708B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/10—Physical methods for facilitating impregnation
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/006—Pulping cellulose-containing materials with compounds not otherwise provided for
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives 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
    • D21C9/001—Modification of pulp properties
    • D21C9/007—Modification of pulp properties by mechanical or physical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP22702851.1A 2021-02-12 2022-01-31 Verfahren für ein chemisch unterstütztes mechanisches aufschlussverfahren von hackschnitzeln bzw. hackspänen Active EP4291708B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50089/2021A AT524693B1 (de) 2021-02-12 2021-02-12 Verfahren für ein chemisch unterstütztes mechanisches Aufschlussverfahren von Hackschnitzeln bzw. Hackspänen
PCT/AT2022/060028 WO2022170373A1 (de) 2021-02-12 2022-01-31 Verfahren für ein chemisch unterstütztes mechanisches aufschlussverfahren von hackschnitzeln bzw. hackspänen

Publications (3)

Publication Number Publication Date
EP4291708A1 EP4291708A1 (de) 2023-12-20
EP4291708C0 true EP4291708C0 (de) 2024-12-18
EP4291708B1 EP4291708B1 (de) 2024-12-18

Family

ID=80222425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22702851.1A Active EP4291708B1 (de) 2021-02-12 2022-01-31 Verfahren für ein chemisch unterstütztes mechanisches aufschlussverfahren von hackschnitzeln bzw. hackspänen

Country Status (3)

Country Link
EP (1) EP4291708B1 (de)
AT (1) AT524693B1 (de)
WO (1) WO2022170373A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT527339A1 (de) * 2023-07-11 2025-01-15 Mondi Ag Verfahren zur Herstellung von Papier aus Abfallholz sowie daraus hergestelltes Papier

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150094459A1 (en) 2012-04-12 2015-04-02 Maaike Christine Kroon Pretreatment of Lignocellulosic Biomass and Recovery of Substituents using Natural Deep Eutectic Solvents/Compound Mixtures with Low Transition Temperatures
EP2876202A1 (de) 2013-11-25 2015-05-27 CEPI aisbl Verwendung von tiefen, eutektischen Lösungsmittel bei der Herstellung von Papier
FI127062B (en) * 2014-11-18 2017-10-31 Upm Kymmene Corp Method and apparatus for making pulp
EP3341520A2 (de) * 2015-08-27 2018-07-04 Teknologian tutkimuskeskus VTT Oy Verfahren zur umwandlung von biomasse mittels tiefer eutektischer lösungsmittel
FI129866B (fi) * 2019-05-15 2022-10-14 Lappeenrannan Lahden Teknillinen Yliopisto Lut Menetelmä lignoselluloosamateriaalin fraktioimiseksi ja mainitulla menetelmällä saadut tuotteet
AU2020100319A4 (en) * 2020-03-04 2020-05-14 Qilu University Of Technology Method for preparing cellulose nanofibrils by deep eutectic solvent pretreatment
CN112431055A (zh) * 2020-11-16 2021-03-02 陕西科技大学 一种由造纸用化学浆制备溶解浆的新工艺

Also Published As

Publication number Publication date
AT524693A1 (de) 2022-08-15
EP4291708A1 (de) 2023-12-20
EP4291708B1 (de) 2024-12-18
AT524693B1 (de) 2022-11-15
WO2022170373A1 (de) 2022-08-18

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