EP0138484A3 - Mechanical pulping - Google Patents

Mechanical pulping Download PDF

Info

Publication number
EP0138484A3
EP0138484A3 EP84306656A EP84306656A EP0138484A3 EP 0138484 A3 EP0138484 A3 EP 0138484A3 EP 84306656 A EP84306656 A EP 84306656A EP 84306656 A EP84306656 A EP 84306656A EP 0138484 A3 EP0138484 A3 EP 0138484A3
Authority
EP
European Patent Office
Prior art keywords
chips
refiner
pulp
discharge
passing
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.)
Withdrawn
Application number
EP84306656A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0138484A2 (en
Inventor
James Robert 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.)
Metso Fiber Karlstad AB
Original Assignee
Kamyr AB
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 AB filed Critical Kamyr AB
Publication of EP0138484A2 publication Critical patent/EP0138484A2/en
Publication of EP0138484A3 publication Critical patent/EP0138484A3/en
Withdrawn legal-status Critical Current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)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Insulating Materials (AREA)
EP84306656A 1983-10-20 1984-09-28 Mechanical pulping Withdrawn EP0138484A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54384783A 1983-10-20 1983-10-20
US543847 1983-10-20

Publications (2)

Publication Number Publication Date
EP0138484A2 EP0138484A2 (en) 1985-04-24
EP0138484A3 true EP0138484A3 (en) 1986-07-02

Family

ID=24169776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84306656A Withdrawn EP0138484A3 (en) 1983-10-20 1984-09-28 Mechanical pulping

Country Status (6)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8501246L (sv) * 1985-03-13 1986-09-14 Eka Ab Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvendning av enstegsimpregnering
SE454186C (sv) * 1985-03-13 1989-06-27 Eka Nobel Ab Saett foer framstaellning av kemimekanisk massa
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB785060A (en) * 1954-04-08 1957-10-23 Waldhof Zellstoff Fab Process for obtaining bleached semi-chemical pulp
US4116758A (en) * 1976-05-14 1978-09-26 Canadian International Paper Co. Method of producing high yield chemimechanical pulps
GB1547939A (en) * 1976-07-19 1979-07-04 Crown Zellerbach Corp Sulphite-modified thermomechanical pulp for use in linerboard
US4229250A (en) * 1979-02-28 1980-10-21 Valmet Oy Method of improving properties of mechanical paper pulp without chemical reaction therewith
EP0034560A2 (en) * 1980-02-14 1981-08-26 Beloit Corporation Method and apparatus for efficiently producing cellulosic pulp by the thermo-mechanical pulping method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB785060A (en) * 1954-04-08 1957-10-23 Waldhof Zellstoff Fab Process for obtaining bleached semi-chemical pulp
US4116758A (en) * 1976-05-14 1978-09-26 Canadian International Paper Co. Method of producing high yield chemimechanical pulps
GB1547939A (en) * 1976-07-19 1979-07-04 Crown Zellerbach Corp Sulphite-modified thermomechanical pulp for use in linerboard
US4229250A (en) * 1979-02-28 1980-10-21 Valmet Oy Method of improving properties of mechanical paper pulp without chemical reaction therewith
EP0034560A2 (en) * 1980-02-14 1981-08-26 Beloit Corporation Method and apparatus for efficiently producing cellulosic pulp by the thermo-mechanical pulping method

Also Published As

Publication number Publication date
NO844062L (no) 1985-04-22
EP0138484A2 (en) 1985-04-24
JPS60146090A (ja) 1985-08-01
CA1240456A (en) 1988-08-16
FI844071L (fi) 1985-04-21
BR8405320A (pt) 1985-09-03
FI844071A0 (fi) 1984-10-16

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AK Designated contracting states

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Effective date: 19880314

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18D Application deemed to be withdrawn

Effective date: 19880715

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PROUGH, JAMES ROBERT