SE547582C2 - A method for manufacturing of a pulp composition and use of the method in the manufacturing of chemithermomechanical pulp - Google Patents

A method for manufacturing of a pulp composition and use of the method in the manufacturing of chemithermomechanical pulp

Info

Publication number
SE547582C2
SE547582C2 SE2430125A SE2430125A SE547582C2 SE 547582 C2 SE547582 C2 SE 547582C2 SE 2430125 A SE2430125 A SE 2430125A SE 2430125 A SE2430125 A SE 2430125A SE 547582 C2 SE547582 C2 SE 547582C2
Authority
SE
Sweden
Prior art keywords
manufacturing
pulp
composition
chemithermomechanical
pulp composition
Prior art date
Application number
SE2430125A
Other versions
SE2430125A1 (en
Inventor
Mikko Nikamaa
Original Assignee
Metsae Board 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 Metsae Board Oyj filed Critical Metsae Board Oyj
Publication of SE2430125A1 publication Critical patent/SE2430125A1/en
Publication of SE547582C2 publication Critical patent/SE547582C2/en

Links

Classifications

    • 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
    • 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
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • 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
    • D21H11/08—Mechanical or thermomechanical pulp

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)

Abstract

According to an example aspect of the present invention, there is provided a method comprising: providing a pulp composition; screening the pulp composition to obtain an accept fraction and a reject fraction; and dewatering the accept fraction output from the screening by a screw press.
SE2430125A 2021-08-17 2022-08-17 A method for manufacturing of a pulp composition and use of the method in the manufacturing of chemithermomechanical pulp SE547582C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20215862A FI20215862A1 (en) 2021-08-17 2021-08-17 A method, uses of the same, a pulp composition, and a system
PCT/FI2022/050536 WO2023021244A1 (en) 2021-08-17 2022-08-17 A method, uses of the same, a pulp composition, and a system

Publications (2)

Publication Number Publication Date
SE2430125A1 SE2430125A1 (en) 2024-03-13
SE547582C2 true SE547582C2 (en) 2025-10-21

Family

ID=83149323

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2430125A SE547582C2 (en) 2021-08-17 2022-08-17 A method for manufacturing of a pulp composition and use of the method in the manufacturing of chemithermomechanical pulp

Country Status (8)

Country Link
US (1) US20250027270A1 (en)
JP (1) JP2024530249A (en)
CN (1) CN117881845A (en)
CA (1) CA3228125A1 (en)
DE (1) DE112022003993T5 (en)
FI (1) FI20215862A1 (en)
SE (1) SE547582C2 (en)
WO (1) WO2023021244A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020074A1 (en) * 1999-09-10 2001-03-22 Stora Kopparbergs Bergslags Aktiebolag (Publ) Method in connection with the production of mechanical pulp
WO2002090647A1 (en) * 2001-05-09 2002-11-14 V & K Consulting Avoin Yhtiö Method and apparatus for recovering fibre and fibre-based solids from filtrates containing both solids and liposoluble extractive agents of mechanical or chemi-mechanical pulp industry
CN112431050A (en) * 2020-11-23 2021-03-02 山东太阳纸业股份有限公司 Method for producing semi-chemical pulp in large scale by utilizing forest waste

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016324A (en) * 1957-03-07 1962-01-09 Bauer Bros Co Method and apparatus for producing wood pulp
US3073737A (en) * 1958-10-08 1963-01-15 Dorr Oliver Inc Wood pulp and process for producing same
SE420329C (en) * 1978-02-16 1984-10-15 Mo Och Domsjoe Ab PROCEDURE FOR THE PREPARATION OF GRINDING PAPER
SE8405128L (en) * 1984-10-15 1986-04-16 Kamyr Ab TREATMENT OF HOG EXCHANGE MASS
US5607546A (en) * 1990-02-13 1997-03-04 Molnlycke Ab CTMP-process
CA2093728A1 (en) * 1993-04-08 1994-10-09 Stephen K. Hawkes Method and apparatus for simutaneously removing oversized particles from a fiber suspension and dewatering the fiber suspension

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020074A1 (en) * 1999-09-10 2001-03-22 Stora Kopparbergs Bergslags Aktiebolag (Publ) Method in connection with the production of mechanical pulp
WO2002090647A1 (en) * 2001-05-09 2002-11-14 V & K Consulting Avoin Yhtiö Method and apparatus for recovering fibre and fibre-based solids from filtrates containing both solids and liposoluble extractive agents of mechanical or chemi-mechanical pulp industry
CN112431050A (en) * 2020-11-23 2021-03-02 山东太阳纸业股份有限公司 Method for producing semi-chemical pulp in large scale by utilizing forest waste

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Janknecht., S. et al. 1997 "Optimum CTMP/CMP pulps for board production" In Pulp & Paper Canada, 98(5), p. 49-57, ISSN 0316-4004 *

Also Published As

Publication number Publication date
FI20215862A1 (en) 2023-02-18
CN117881845A (en) 2024-04-12
CA3228125A1 (en) 2023-02-23
JP2024530249A (en) 2024-08-16
WO2023021244A1 (en) 2023-02-23
SE2430125A1 (en) 2024-03-13
DE112022003993T5 (en) 2024-07-25
US20250027270A1 (en) 2025-01-23

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