FI69881C - Foerfarande foer framstaellning av slipmassa - Google Patents

Foerfarande foer framstaellning av slipmassa Download PDF

Info

Publication number
FI69881C
FI69881C FI782415A FI782415A FI69881C FI 69881 C FI69881 C FI 69881C FI 782415 A FI782415 A FI 782415A FI 782415 A FI782415 A FI 782415A FI 69881 C FI69881 C FI 69881C
Authority
FI
Finland
Prior art keywords
bleaching
pulp
steam
grinder
thickening
Prior art date
Application number
FI782415A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI69881B (fi
FI782415A (fi
Inventor
Jonas Arne Ingvar Lindahl
Original Assignee
Mo Och Domsjoe 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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Publication of FI782415A publication Critical patent/FI782415A/fi
Application granted granted Critical
Publication of FI69881B publication Critical patent/FI69881B/fi
Publication of FI69881C publication Critical patent/FI69881C/fi

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
    • 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
    • D21C9/1026—Other features in bleaching processes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
FI782415A 1978-02-16 1978-08-07 Foerfarande foer framstaellning av slipmassa FI69881C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7801813 1978-02-16
SE7801813A SE420329C (sv) 1978-02-16 1978-02-16 Forfarande for framstellning av slipmassa vid overtryck

Publications (3)

Publication Number Publication Date
FI782415A FI782415A (fi) 1979-08-17
FI69881B FI69881B (fi) 1985-12-31
FI69881C true FI69881C (fi) 1986-05-26

Family

ID=20334010

Family Applications (1)

Application Number Title Priority Date Filing Date
FI782415A FI69881C (fi) 1978-02-16 1978-08-07 Foerfarande foer framstaellning av slipmassa

Country Status (12)

Country Link
US (1) US4207140A (xx)
JP (1) JPS54111589A (xx)
AU (1) AU502062B1 (xx)
BR (1) BR7805664A (xx)
CA (1) CA1074608A (xx)
DE (1) DE2834909C3 (xx)
FI (1) FI69881C (xx)
FR (1) FR2417581A1 (xx)
GB (1) GB2014625B (xx)
NO (1) NO148783C (xx)
NZ (1) NZ188013A (xx)
SE (1) SE420329C (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE422088B (sv) * 1978-11-24 1982-02-15 Mo Och Domsjoe Ab Forfarande for framstellning av slipmassa av lignocellolusahaltiga material
SE433954B (sv) * 1980-03-25 1984-06-25 Mo Och Domsjoe Ab Forfarande och anordning for reduktion av vid framstellning av slipmassa fran vedstockar i stenslipverk uppkomna grovre vedrester och spetor jemte reglering av massans freeness
SE445051B (sv) * 1980-04-10 1986-05-26 Sca Development Ab Sett vid tillverkning av mekanisk, i huvudsak hartsfri cellulosamassa
SE434069B (sv) * 1980-07-09 1984-07-02 Mo Och Domsjoe Ab Forfarande for framstellning av slipmassa
FI61531C (fi) * 1980-11-18 1982-08-10 Tampella Oy Ab Foerfarande foer foerbaettring av efteranvaendningen av vid tilverkningsprocessen foer slipmassa altstrad vaermeenergi
SE451606B (sv) * 1982-09-14 1987-10-19 Sca Development Ab Sett vid blekning av hogutbytesmassor medelst peroxider
ZA837927B (en) * 1983-05-23 1985-01-30 Process Evaluation Devel Thermomechanical digestion process using bleachants
US4798652A (en) * 1987-10-19 1989-01-17 Peter Joyce Peroxide bleaching of mechanical pulps
DE3823837A1 (de) * 1988-07-14 1990-01-18 Feldmuehle Ag Verfahren zum herstellen von holzschliff
AU1357097A (en) * 1996-02-27 1997-09-16 Tetra Laval Holdings & Finance Sa Process for sanitizing post-consumer paper fibers and product formed therefrom
FI116575B (sv) * 2004-06-28 2005-12-30 Pom Technology Oy Ab Förfarande och anordning vid pappersmaskin
SE0602476L (sv) * 2006-11-22 2007-08-21 Metso Fiber Karlstad Ab Metod för att återvinna värmeenergi från svartlut
FI20215862A1 (en) * 2021-08-17 2023-02-18 Metsae Board Oyj Process, uses thereof, pulp composition and system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413583A (en) * 1945-08-11 1946-12-31 St Regis Paper Co Bleaching of groundwood
SE318178B (xx) * 1963-03-15 1969-12-01 Anglo Paper Prod Ltd
AT244996B (de) * 1963-08-26 1966-02-10 Voith Gmbh J M Wirbelabscheider
SE341322B (xx) * 1968-04-02 1971-12-20 Defibrator Ab
US3808090A (en) * 1970-10-01 1974-04-30 F Luhde Mechanical abrasion of wood particles in the presence of water and in an inert gaseous atmosphere
US4029543A (en) * 1971-12-14 1977-06-14 Mo Och Domsjo Mechanically freeing wood fibers in the presence of spent peroxide bleaching liquor
BE792031A (fr) * 1971-12-14 1973-03-16 Mo Och Domsjoe Ab Procede pour la preparation de pulpes mecaniques
SE7317565L (xx) * 1973-12-28 1975-06-30 Selander Stig Daniel
SE413684C (sv) * 1974-09-23 1987-05-18 Mo Och Domsjoe Ab Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 %
SE403916B (sv) * 1975-06-04 1978-09-11 Rolf Bertil Reinhall Anordning vid malapparater for lignocellulosahaltigt material
SE413784B (sv) * 1976-08-06 1980-06-23 Isel Sa Sett och anordning for att utnyttja i defibreringszonen utvecklat verme for att minimera angforbrukningen vid framstellning av massa for fiberskivor

Also Published As

Publication number Publication date
NZ188013A (en) 1981-05-01
NO148783C (no) 1983-12-14
US4207140A (en) 1980-06-10
AU502062B1 (en) 1979-07-12
CA1074608A (en) 1980-04-01
SE420329C (sv) 1984-10-15
FI69881B (fi) 1985-12-31
FI782415A (fi) 1979-08-17
DE2834909A1 (de) 1979-08-23
BR7805664A (pt) 1979-09-25
NO782600L (no) 1979-08-17
NO148783B (no) 1983-09-05
FR2417581B1 (xx) 1982-05-14
FR2417581A1 (fr) 1979-09-14
GB2014625B (en) 1982-04-07
JPS54111589A (en) 1979-08-31
SE7801813L (sv) 1979-08-17
DE2834909B2 (de) 1979-12-13
DE2834909C3 (de) 1989-02-02
JPS5730438B2 (xx) 1982-06-29
SE420329B (sv) 1981-09-28
GB2014625A (en) 1979-08-30

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MM Patent lapsed
MM Patent lapsed

Owner name: MO OCH DOMSJOE AB