SE439507B - Sett for behandling av cellulosahaltig massa, varvid massan fraktioneras i fraktioner efter partikelstorleken och en av fraktionerna behandlas med ozon - Google Patents

Sett for behandling av cellulosahaltig massa, varvid massan fraktioneras i fraktioner efter partikelstorleken och en av fraktionerna behandlas med ozon

Info

Publication number
SE439507B
SE439507B SE7804786A SE7804786A SE439507B SE 439507 B SE439507 B SE 439507B SE 7804786 A SE7804786 A SE 7804786A SE 7804786 A SE7804786 A SE 7804786A SE 439507 B SE439507 B SE 439507B
Authority
SE
Sweden
Prior art keywords
fractions
nad
aan
yaara
aaa
Prior art date
Application number
SE7804786A
Other languages
English (en)
Swedish (sv)
Other versions
SE7804786L (sv
Inventor
B H Fritzvold
N Soteland
Original Assignee
Myrens Verksted As
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
Priority claimed from NO771472A external-priority patent/NO139896C/no
Priority claimed from NO771471A external-priority patent/NO139895C/no
Application filed by Myrens Verksted As filed Critical Myrens Verksted As
Publication of SE7804786L publication Critical patent/SE7804786L/xx
Publication of SE439507B publication Critical patent/SE439507B/sv

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
    • D21C9/1073—Bleaching ; Apparatus therefor with O3
    • 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)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
SE7804786A 1977-04-27 1978-04-26 Sett for behandling av cellulosahaltig massa, varvid massan fraktioneras i fraktioner efter partikelstorleken och en av fraktionerna behandlas med ozon SE439507B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO771472A NO139896C (no) 1977-04-27 1977-04-27 Fremgangsmaate for behandling av celluloseholdig masse ved anvendelse av ozon
NO771471A NO139895C (no) 1977-04-27 1977-04-27 Fremgangsmaate for behandling av celluloseholdig masse ved anvendelse av ozon

Publications (2)

Publication Number Publication Date
SE7804786L SE7804786L (sv) 1978-10-28
SE439507B true SE439507B (sv) 1985-06-17

Family

ID=26647635

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7804786A SE439507B (sv) 1977-04-27 1978-04-26 Sett for behandling av cellulosahaltig massa, varvid massan fraktioneras i fraktioner efter partikelstorleken och en av fraktionerna behandlas med ozon

Country Status (7)

Country Link
JP (1) JPS53143706A (en])
BR (1) BR7802596A (en])
CA (1) CA1083870A (en])
DE (1) DE2818660A1 (en])
FI (1) FI67412C (en])
FR (1) FR2388934A1 (en])
SE (1) SE439507B (en])

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO142091C (no) * 1977-10-17 1980-06-25 Myrens Verksted As Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse.
DE2908660C2 (de) * 1979-03-06 1984-02-09 J.M. Voith Gmbh, 7920 Heidenheim Verfahren und Anlage zur Rückgewinnung einer Faserstoffsuspension aus gemischtem Altpapier
US4435249A (en) 1979-09-05 1984-03-06 The Black Clawson Co. Process for the oxygen delignification of pulp mill rejects
FR2522030A1 (fr) * 1982-02-19 1983-08-26 Scherb Metenett Papeteries Procede de blanchiment selectif de pate a papier et papier obtenu par mise en oeuvre de ce procede
JPS6430088A (en) * 1987-07-24 1989-01-31 Konishiroku Photo Ind Tape cassette
EP0581631A1 (en) * 1992-07-31 1994-02-02 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Selective treatment of pulp with ozone
DE10256519B4 (de) * 2002-12-04 2006-08-10 Voith Paper Patent Gmbh Verfahren zur Dispergierung eines aus bedrucktem Papier gewonnenen Papierfaserstoffes
FI119062B (fi) * 2006-12-28 2008-07-15 Upm Kymmene Corp Menetelmä mekaanisen massan valmistamiseksi
DE102008010447A1 (de) * 2008-02-21 2009-08-27 Voith Patent Gmbh Verfahren zur Behandlung und Verwendung einer Faserstoffsuspension

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1119106B (de) * 1959-03-25 1961-12-07 Phrix Werke Ag Verfahren zum Herstellen eines Kunstfaserzellstoffes aus Holz u. dgl.
NO131996C (en]) * 1973-10-04 1975-09-03 Papirind Forskningsinst

Also Published As

Publication number Publication date
SE7804786L (sv) 1978-10-28
JPS62275B2 (en]) 1987-01-07
FR2388934A1 (fr) 1978-11-24
CA1083870A (en) 1980-08-19
FI781285A7 (fi) 1978-10-28
JPS53143706A (en) 1978-12-14
DE2818660A1 (de) 1978-11-02
DE2818660C2 (en]) 1988-09-22
FI67412B (fi) 1984-11-30
FI67412C (fi) 1985-03-11
BR7802596A (pt) 1978-12-12

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