IT1053387B - Perfezionamento nei procedimenti pr la produzione di pasta di cellulosa con effluente a bassa richiesta biologica di ossigeno - Google Patents

Perfezionamento nei procedimenti pr la produzione di pasta di cellulosa con effluente a bassa richiesta biologica di ossigeno

Info

Publication number
IT1053387B
IT1053387B IT47704/76A IT4770476A IT1053387B IT 1053387 B IT1053387 B IT 1053387B IT 47704/76 A IT47704/76 A IT 47704/76A IT 4770476 A IT4770476 A IT 4770476A IT 1053387 B IT1053387 B IT 1053387B
Authority
IT
Italy
Prior art keywords
procedures
improvement
production
organic oxygen
low organic
Prior art date
Application number
IT47704/76A
Other languages
English (en)
Italian (it)
Inventor
J Hook
Original Assignee
Elektrokemiska 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 Elektrokemiska Ab filed Critical Elektrokemiska Ab
Application granted granted Critical
Publication of IT1053387B publication Critical patent/IT1053387B/it

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
    • D21B1/04—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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
IT47704/76A 1975-01-27 1976-01-20 Perfezionamento nei procedimenti pr la produzione di pasta di cellulosa con effluente a bassa richiesta biologica di ossigeno IT1053387B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7500843A SE387977B (sv) 1975-01-27 1975-01-27 Sett att framstella blekt, mekanisk massa med hog styrka och ljushet

Publications (1)

Publication Number Publication Date
IT1053387B true IT1053387B (it) 1981-08-31

Family

ID=20323502

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47704/76A IT1053387B (it) 1975-01-27 1976-01-20 Perfezionamento nei procedimenti pr la produzione di pasta di cellulosa con effluente a bassa richiesta biologica di ossigeno

Country Status (7)

Country Link
CA (1) CA1078558A (sv)
DE (1) DE2601380C2 (sv)
FI (1) FI760103A (sv)
FR (1) FR2298642A1 (sv)
IT (1) IT1053387B (sv)
NO (1) NO760232L (sv)
SE (1) SE387977B (sv)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE452346C (sv) * 1982-12-17 1990-03-26 Sunds Defibrator Foerfarande foer peroxidblekning av lignocellulosahaltigt material i tvaa steg
FR2661431B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement.
FR2661430B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde d'hydrogene de pates a papier a haut rendement.
US20040200586A1 (en) 2002-07-19 2004-10-14 Martin Herkel Four stage alkaline peroxide mechanical pulping
WO2003008703A1 (en) 2001-07-19 2003-01-30 Andritz Inc. Four stage alkaline peroxide mechanical pulping
DE10234833A1 (de) * 2002-07-31 2004-02-12 Stora Enso Publication Paper Gmbh & Co. Kg Verfahren zum Aufschluss von Altholz

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR925243A (fr) * 1945-04-05 1947-08-28 St Regis Paper Co Perfectionnements apportés à la pâte blanchie de bois moulu et à ses procédés de fabrication
GB838893A (en) * 1957-04-05 1960-06-22 Degussa A process for the production of mechanical wood pulp and newsprint produced therefrom
FR1204356A (fr) * 1957-04-05 1960-01-26 Degussa Procédé de fabrication de pâte de bois mécanique
GB846232A (en) * 1958-01-14 1960-08-31 Hawailan Dev Company Ltd Improvements in and relating to paper-making pulp
FR1277371A (fr) * 1960-10-19 1961-12-01 Papeteries De Clairefontaine Procédé et appareillage pour la fabrication de pâte à papier à partir de déchets de scierie
SE341322B (sv) * 1968-04-02 1971-12-20 Defibrator Ab
BE792031A (fr) * 1971-12-14 1973-03-16 Mo Och Domsjoe Ab Procede pour la preparation de pulpes mecaniques
JP2014197074A (ja) * 2013-03-29 2014-10-16 ブラザー工業株式会社 定着装置

Also Published As

Publication number Publication date
FR2298642A1 (fr) 1976-08-20
FI760103A (sv) 1976-07-28
NO760232L (sv) 1976-07-28
SE387977B (sv) 1976-09-20
FR2298642B1 (sv) 1981-10-23
CA1078558A (en) 1980-06-03
DE2601380A1 (de) 1976-07-29
DE2601380C2 (de) 1984-03-15
SE7500843L (sv) 1976-07-28

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940129