CA1240456A - Mechanical pulping - Google Patents

Mechanical pulping

Info

Publication number
CA1240456A
CA1240456A CA000462872A CA462872A CA1240456A CA 1240456 A CA1240456 A CA 1240456A CA 000462872 A CA000462872 A CA 000462872A CA 462872 A CA462872 A CA 462872A CA 1240456 A CA1240456 A CA 1240456A
Authority
CA
Canada
Prior art keywords
passing
refiner
mechanical pulp
comminuted
discharge
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.)
Expired
Application number
CA000462872A
Other languages
English (en)
French (fr)
Inventor
James R. Prough
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.)
Kamyr Inc
Original Assignee
Kamyr Inc
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 Kamyr Inc filed Critical Kamyr Inc
Application granted granted Critical
Publication of CA1240456A publication Critical patent/CA1240456A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Insulating Materials (AREA)
  • Carbon And Carbon Compounds (AREA)
CA000462872A 1983-10-20 1984-09-11 Mechanical pulping Expired CA1240456A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54384783A 1983-10-20 1983-10-20
US543,847 1983-10-20

Publications (1)

Publication Number Publication Date
CA1240456A true CA1240456A (en) 1988-08-16

Family

ID=24169776

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000462872A Expired CA1240456A (en) 1983-10-20 1984-09-11 Mechanical pulping

Country Status (6)

Country Link
EP (1) EP0138484A3 (fi)
JP (1) JPS60146090A (fi)
BR (1) BR8405320A (fi)
CA (1) CA1240456A (fi)
FI (1) FI844071L (fi)
NO (1) NO844062L (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE454186C (sv) * 1985-03-13 1989-09-25 Eka Nobel Ab Saett foer framstaellning av kemimekanisk massa
SE8501246L (sv) * 1985-03-13 1986-09-14 Eka Ab Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvendning av enstegsimpregnering
SE458690B (sv) * 1986-11-06 1989-04-24 Sunds Defibrator Saett att framstaella mekanisk massa fraan lignocellulosahaltigt material i styckeform med en laengd i fiberriktningen av minst 200 mm
US5853534A (en) * 1992-12-30 1998-12-29 Sunds Defibrator Industries Ab Method of producing pulp with high yield using a two-stage refining system operating at different temperatures
FI113670B (fi) * 1999-12-09 2004-05-31 Upm Kymmene Corp Menetelmä painopaperin valmistamiseksi
FI113552B (fi) 1999-12-09 2004-05-14 Upm Kymmene Corp Menetelmä painopaperin valmistamiseksi
FI126694B (fi) * 2005-12-02 2017-04-13 Metsä Board Oyj Kemimekaaninen massa ja menetelmä sen valmistamiseksi
US8262851B2 (en) 2006-08-10 2012-09-11 Andritz Inc. Processes and systems for the pulping of lignocellulosic materials
WO2008076055A1 (en) * 2006-12-19 2008-06-26 Akzo Nobel N.V. Process of pulping
WO2008153565A1 (en) * 2007-06-12 2008-12-18 Meadwestvaco Corporation A fiber blend having high yield and enhanced pulp performance and method for making same
US20080308239A1 (en) 2007-06-12 2008-12-18 Hart Peter W Fiber blend having high yield and enhanced pulp performance and method for making same
SE537483C2 (sv) * 2012-03-23 2015-05-19 Valmet Oy Förfarande och anordning för rengöring av lignocellulosamaterial under impregnering
CN107503214A (zh) * 2017-10-11 2017-12-22 山东恒安纸业有限公司 一种新型生活用纸备浆装置及工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE536814A (fi) * 1954-04-08
US4116758A (en) * 1976-05-14 1978-09-26 Canadian International Paper Co. Method of producing high yield chemimechanical pulps
US4145246A (en) * 1976-07-19 1979-03-20 Crown Zellerbach Corporation Process for making high-strength, high-yield sulfite-modified thermomechanical pulp and a linerboard composition produced therefrom
US4229250A (en) * 1979-02-28 1980-10-21 Valmet Oy Method of improving properties of mechanical paper pulp without chemical reaction therewith
FI810330L (fi) * 1980-02-14 1981-08-15 Beloit Corp Termomekaniskt defibreringsfoerfarande

Also Published As

Publication number Publication date
EP0138484A2 (en) 1985-04-24
EP0138484A3 (en) 1986-07-02
FI844071A0 (fi) 1984-10-16
JPS60146090A (ja) 1985-08-01
FI844071L (fi) 1985-04-21
BR8405320A (pt) 1985-09-03
NO844062L (no) 1985-04-22

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Legal Events

Date Code Title Description
MKEX Expiry