DE2444475C2 - Verfahren für die Ozonbehandlung von Papiermasse - Google Patents

Verfahren für die Ozonbehandlung von Papiermasse

Info

Publication number
DE2444475C2
DE2444475C2 DE2444475A DE2444475A DE2444475C2 DE 2444475 C2 DE2444475 C2 DE 2444475C2 DE 2444475 A DE2444475 A DE 2444475A DE 2444475 A DE2444475 A DE 2444475A DE 2444475 C2 DE2444475 C2 DE 2444475C2
Authority
DE
Germany
Prior art keywords
mass
ozone
treatment
mechanical
ozone treatment
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
DE2444475A
Other languages
German (de)
English (en)
Other versions
DE2444475A1 (de
Inventor
Francois Andre Abadie-Maumert
Sigurd Oslo Hauan
Vidar Hosleo Loras
Arne Nicolai Oslo 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.)
PAPIRINDUSTRIENS FORSKNINGSINSTITUTT OSLO NO
Original Assignee
PAPIRINDUSTRIENS FORSKNINGSINSTITUTT OSLO NO
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 PAPIRINDUSTRIENS FORSKNINGSINSTITUTT OSLO NO filed Critical PAPIRINDUSTRIENS FORSKNINGSINSTITUTT OSLO NO
Publication of DE2444475A1 publication Critical patent/DE2444475A1/de
Application granted granted Critical
Publication of DE2444475C2 publication Critical patent/DE2444475C2/de
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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Magnetic Ceramics (AREA)
DE2444475A 1973-10-04 1974-09-18 Verfahren für die Ozonbehandlung von Papiermasse Expired DE2444475C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO3859/73A NO131996C (no) 1973-10-04 1973-10-04

Publications (2)

Publication Number Publication Date
DE2444475A1 DE2444475A1 (de) 1975-04-17
DE2444475C2 true DE2444475C2 (de) 1983-02-10

Family

ID=19879892

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2444475A Expired DE2444475C2 (de) 1973-10-04 1974-09-18 Verfahren für die Ozonbehandlung von Papiermasse

Country Status (4)

Country Link
DE (1) DE2444475C2 (no)
FI (1) FI61926C (no)
NO (1) NO131996C (no)
SE (1) SE7412367L (no)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI67412C (fi) * 1977-04-27 1985-03-11 Myrens Verksted As Foerfarande foer behandling av cellulosahaltig massa
US4216054A (en) 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
NO142091C (no) * 1977-10-17 1980-06-25 Myrens Verksted As Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse.
FR2609067B1 (fr) * 1986-12-31 1990-06-15 Beghin Say Sa Procede pour le traitement a l'ozone d'une pate cellulosique
CA2144433A1 (en) * 1992-10-01 1994-04-14 Thomas P. Gandek Improved bleaching of high consistency lignocellulosic pulp
WO1996002697A1 (en) * 1994-07-14 1996-02-01 Union Camp Patent Holding, Inc. Improved bleaching of high consistency lignocellulosic pulp
GB2382592A (en) * 2001-11-30 2003-06-04 Sca Hygiene Prod Gmbh Use of ozone to enhance the wet strength of fibrous cellulosic material
FI119062B (fi) 2006-12-28 2008-07-15 Upm Kymmene Corp Menetelmä mekaanisen massan valmistamiseksi
USD774295S1 (en) 2014-10-13 2016-12-20 Patrick Garms Sock

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE503451C (de) * 1927-10-04 1930-07-23 Paul Erkens Verfahren und Vorrichtung zum Bleichen von Faserstoffen

Also Published As

Publication number Publication date
FI61926B (fi) 1982-06-30
NO131996C (no) 1975-09-03
NO385973L (no) 1975-04-28
DE2444475A1 (de) 1975-04-17
FI61926C (fi) 1982-10-11
SE7412367L (no) 1975-04-07
NO131996B (no) 1975-05-26
FI289374A (no) 1975-04-05

Similar Documents

Publication Publication Date Title
DE2540919C2 (de) Verfahren zur Herstellung von Cellulosemassen im Ausbeutebereich von 65 - 95 %
DE2640027C2 (no)
DE2845025C2 (no)
DE2818320B2 (de) Verfahren und Vorrichtung zur Behandlung von Holzhackschnitzeln
DE60027765T2 (de) Verfahren zur herstellung von mechanischer pulpe
DE1253031B (de) Verfahren zur Herstellung mechanischen und/oder chemomechanischen Faserstoffs aus lignozellulosehaltigem Material
DE3001105A1 (de) Verfahren zur herstellung eines breies aus lignozellulose-haltigem fasergut
DE2444475C2 (de) Verfahren für die Ozonbehandlung von Papiermasse
WO2007140838A2 (de) Lignocellulosischer faserstoff aus holz
DE2124324C3 (de) Verfahren zum Bleichen von Holzzellstoffen
DE3034042C2 (de) Verfahren zur Reduzierung des Harzgehalts bei der Herstellung von Zellulosepulpe aus Lignozellulose-Material
DE2941965A1 (de) Verfahren zum herstellen von papierstoff
DE2601380A1 (de) Verfahren zur herstellung von gebleichter mechanischer pulpe
DE3148101C2 (de) Verfahren zur Reduzierung des Harzgehalts bei der Herstellung von Zellulosepulpe
DE3590512T1 (de) Verfahren zur Herstellung von Cellulosepulpe
DE3346528C2 (no)
EP0185858B1 (de) Verfahren zur Delignifizierung von Sulfatzellstoffen
DE3118384C1 (de) Verfahren zum Bleichen von chemisch hergestelltem Zellstoff mit Ozon
DE2714730A1 (de) Verfahren zur herstellung von stoff aus ligno-zellulose enthaltendem faserhaltigem material
DE1901183C3 (no)
EP0379858A2 (de) Verfahren zur Bleiche von Faserstoffen zur Papierherstellung
DE4343508C2 (de) Chemo-thermo-mechanisches Verfahren zur Herstellung von Zellstoff aus Pflanzenfasermaterial
AT377545B (de) Verfahren zur verminderung des harzgehaltes bei der erzeugung von faserstoffen aus lignozellulose-haeltigen materialien
AT200907B (de) Verfahren zur Gewinnung von Halbzellstoff
WO2022170373A1 (de) Verfahren für ein chemisch unterstütztes mechanisches aufschlussverfahren von hackschnitzeln bzw. hackspänen

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8381 Inventor (new situation)

Free format text: ABADIE-MAUMERT, FRANCOIS ANDRE HAUAN, SIGURD, OSLO, NO LORAS, VIDAR, HOSLOE, NO SOTELAND, ARNE NICOLAI, OSLO, NO

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee