CA1083870A - Method for treating cellulose containing pulp - Google Patents

Method for treating cellulose containing pulp

Info

Publication number
CA1083870A
CA1083870A CA302,000A CA302000A CA1083870A CA 1083870 A CA1083870 A CA 1083870A CA 302000 A CA302000 A CA 302000A CA 1083870 A CA1083870 A CA 1083870A
Authority
CA
Canada
Prior art keywords
pulp
coarse
screen
fractions
ozone
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
CA302,000A
Other languages
English (en)
French (fr)
Inventor
BJõRN H. FRITZVOLD
Nicolai Soteland
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.)
Myrens Verksted AS
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 NO771471A external-priority patent/NO139895C/no
Priority claimed from NO771472A external-priority patent/NO139896C/no
Application filed by Myrens Verksted AS filed Critical Myrens Verksted AS
Application granted granted Critical
Publication of CA1083870A publication Critical patent/CA1083870A/en
Expired legal-status Critical Current

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)
CA302,000A 1977-04-27 1978-04-26 Method for treating cellulose containing pulp Expired CA1083870A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NO771472 1977-04-27
NO771471 1977-04-27
NO771471A NO139895C (no) 1977-04-27 1977-04-27 Fremgangsmaate for behandling av celluloseholdig masse ved anvendelse av ozon
NO771472A NO139896C (no) 1977-04-27 1977-04-27 Fremgangsmaate for behandling av celluloseholdig masse ved anvendelse av ozon

Publications (1)

Publication Number Publication Date
CA1083870A true CA1083870A (en) 1980-08-19

Family

ID=26647635

Family Applications (1)

Application Number Title Priority Date Filing Date
CA302,000A Expired CA1083870A (en) 1977-04-27 1978-04-26 Method for treating cellulose containing pulp

Country Status (7)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008081078A1 (en) 2006-12-28 2008-07-10 Upm-Kymmene Corporation A method for manufacturing mechanical pulp

Families Citing this family (8)

* 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 (de) * 1992-07-31 1994-02-02 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Mit Ozon selektive Zellstoffbehandlung
DE10256519B4 (de) * 2002-12-04 2006-08-10 Voith Paper Patent Gmbh Verfahren zur Dispergierung eines aus bedrucktem Papier gewonnenen Papierfaserstoffes
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 (de) * 1973-10-04 1975-09-03 Papirind Forskningsinst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008081078A1 (en) 2006-12-28 2008-07-10 Upm-Kymmene Corporation A method for manufacturing mechanical pulp
EP2097582A1 (de) * 2006-12-28 2009-09-09 UPM-Kymmene Corporation Verfahren zur herstellung von holzstoff
EP2097582A4 (de) * 2006-12-28 2013-12-25 Upm Kymmene Corp Verfahren zur herstellung von holzstoff

Also Published As

Publication number Publication date
SE439507B (sv) 1985-06-17
DE2818660A1 (de) 1978-11-02
DE2818660C2 (de) 1988-09-22
JPS62275B2 (de) 1987-01-07
SE7804786L (sv) 1978-10-28
FR2388934A1 (fr) 1978-11-24
FI67412C (fi) 1985-03-11
FI781285A (fi) 1978-10-28
FI67412B (fi) 1984-11-30
JPS53143706A (en) 1978-12-14
BR7802596A (pt) 1978-12-12

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Legal Events

Date Code Title Description
MKEX Expiry