NO162475C - Fremgangsmaate ved fremstilling av mekanisk raffinoer-tremasse. - Google Patents

Fremgangsmaate ved fremstilling av mekanisk raffinoer-tremasse.

Info

Publication number
NO162475C
NO162475C NO832029A NO832029A NO162475C NO 162475 C NO162475 C NO 162475C NO 832029 A NO832029 A NO 832029A NO 832029 A NO832029 A NO 832029A NO 162475 C NO162475 C NO 162475C
Authority
NO
Norway
Prior art keywords
refines
procedure
mechanical
manufacturing
mechanical refines
Prior art date
Application number
NO832029A
Other languages
English (en)
Norwegian (no)
Other versions
NO832029L (no
NO162475B (no
Inventor
David Morson Mackie
Peter Joyce
Original Assignee
Mac Millan Bloedel Ltd
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 Mac Millan Bloedel Ltd filed Critical Mac Millan Bloedel Ltd
Publication of NO832029L publication Critical patent/NO832029L/no
Publication of NO162475B publication Critical patent/NO162475B/no
Publication of NO162475C publication Critical patent/NO162475C/no

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
    • 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
    • D21C3/26—Multistage processes
    • D21C3/266—Multistage processes the same pulping agent being used in all stages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Centrifugal Separators (AREA)
NO832029A 1982-06-04 1983-06-03 Fremgangsmaate ved fremstilling av mekanisk raffinoer-tremasse. NO162475C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/385,286 US4502918A (en) 1981-06-10 1982-06-04 Two-stage chemical treatment of mechanical wood pulp with sodium sulfite

Publications (3)

Publication Number Publication Date
NO832029L NO832029L (no) 1983-12-05
NO162475B NO162475B (no) 1989-09-25
NO162475C true NO162475C (no) 1990-01-03

Family

ID=23520786

Family Applications (1)

Application Number Title Priority Date Filing Date
NO832029A NO162475C (no) 1982-06-04 1983-06-03 Fremgangsmaate ved fremstilling av mekanisk raffinoer-tremasse.

Country Status (7)

Country Link
US (1) US4502918A (de)
EP (1) EP0096548B1 (de)
JP (1) JPS5915589A (de)
CA (1) CA1177608A (de)
DE (1) DE3366030D1 (de)
FI (1) FI73746C (de)
NO (1) NO162475C (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441282B (sv) * 1984-02-22 1985-09-23 Mo Och Domsjoe Ab Forfarande for framstellning av forbettrad hogutbytesmassa
SE444825B (sv) * 1984-09-10 1986-05-12 Mo Och Domsjoe Ab Forfarande for framstellning av forbettrad hogutbytesmassa
US4708771A (en) * 1984-12-31 1987-11-24 Bear Island Paper Company Two stage process for sulfonating mechanical pulp fibers
US5089089A (en) * 1984-12-31 1992-02-18 Bear Island Paper Company System for sulfonating mechanical pulp fibers
NZ211684A (en) * 1985-04-04 1989-07-27 Caxton Paper Ltd Manufacture of cellulose pulp: second digestion step follows initial digestion and refining steps
US4731160A (en) * 1986-03-19 1988-03-15 Kamyr, Inc. Drainage characteristics of mechanical pulp
SE8601477L (sv) * 1986-04-02 1987-10-03 Sunds Defibrator Sett for behandling av mekanisk massa
SE8701423L (sv) * 1987-04-06 1988-10-07 Kamyr Ab Foerfarande vid framstaellning av fiberhaltig massa med olika raamaterial
JPH035255U (de) * 1989-06-07 1991-01-18
US5169496A (en) * 1991-04-23 1992-12-08 International Paper Company Method of producing multi-ply paper and board products exhibiting increased stiffness
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
AT398990B (de) * 1993-01-29 1995-02-27 Ortwin Bobleter Verfahren zur hydrolyse von pflanzenmaterialien
US5503710A (en) * 1995-05-31 1996-04-02 Macmillan Bloedel Limited Duplex linerboard formed from old corrugated containers
US6350350B1 (en) 1997-04-01 2002-02-26 Science Applications International Corp. Integrated system and method for purifying water, producing pulp and paper and improving soil quality
US7384502B2 (en) * 2002-12-24 2008-06-10 Nippon Paper Industries Co., Ltd. Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness
JP4273772B2 (ja) * 2003-01-23 2009-06-03 日本製紙株式会社 ケミサーモメカニカルパルプおよびその製造方法と用途
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
US20100175840A1 (en) * 2007-06-12 2010-07-15 Hart Peter W High yield and enhanced performance fiber
US20100224333A1 (en) * 2009-03-09 2010-09-09 Prasad Duggirala Method and chemical composition to improve efficiency of mechanical pulp
CA2824076A1 (en) 2012-08-21 2014-02-21 University Of New Brunswick System and method for reclaiming rejects in sulfite pulping
CN109792244B (zh) 2016-10-05 2023-08-04 三菱电机株式会社 信号传递电路以及电力变换装置
FI20215861A1 (en) * 2021-08-17 2023-02-18 Metsae Board Oyj Method, use thereof, pulp composition and system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847304A (en) * 1952-04-10 1958-08-12 Hammermill Paper Co Semi-chemical pulp process
US3597310A (en) * 1966-04-25 1971-08-03 Kokusaku Pulp Ind Co Ltd Method of producing high yield pulp by disc refining at ph of 12 to 14
US3607613A (en) * 1968-05-27 1971-09-21 Sylvania Electric Prod Electrically conductive refractory bodies
CA1075857A (en) * 1976-02-20 1980-04-22 Price Company Limited (The) Chemical pretreatment of wood prior to making refiner groundwood
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
CA1071805A (en) * 1977-10-25 1980-02-19 Ontario Paper Company Limited (The) Drainage and wet stretch improvement in mechanical pulps
SU827656A1 (ru) * 1979-07-11 1981-05-07 Центральный Научно-Исследовательскийинститут Бумаги Способ получени древесной массы
AU531907B2 (en) * 1979-12-17 1983-09-08 Ontario Paper Co. Ltd., The Forming refiner pulps

Also Published As

Publication number Publication date
FI73746C (fi) 1987-11-09
FI832001L (fi) 1983-12-05
FI832001A0 (fi) 1983-06-03
US4502918A (en) 1985-03-05
CA1177608A (en) 1984-11-13
NO832029L (no) 1983-12-05
EP0096548B1 (de) 1986-09-10
FI73746B (fi) 1987-07-31
EP0096548A1 (de) 1983-12-21
NO162475B (no) 1989-09-25
JPS5915589A (ja) 1984-01-26
DE3366030D1 (en) 1986-10-16

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