NO173886C - Fremgangsmaate for bleking av mekanisk tremasse - Google Patents

Fremgangsmaate for bleking av mekanisk tremasse

Info

Publication number
NO173886C
NO173886C NO881404A NO881404A NO173886C NO 173886 C NO173886 C NO 173886C NO 881404 A NO881404 A NO 881404A NO 881404 A NO881404 A NO 881404A NO 173886 C NO173886 C NO 173886C
Authority
NO
Norway
Prior art keywords
procedure
wood pulp
mechanical wood
bleaching
bleaching mechanical
Prior art date
Application number
NO881404A
Other languages
English (en)
Norwegian (no)
Other versions
NO881404L (no
NO173886B (no
NO881404D0 (no
Inventor
Michel Devic
Jacques Kervennal
Jean-Pierre Schirmann
Original Assignee
Atochem
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 Atochem filed Critical Atochem
Publication of NO881404D0 publication Critical patent/NO881404D0/no
Publication of NO881404L publication Critical patent/NO881404L/no
Publication of NO173886B publication Critical patent/NO173886B/no
Publication of NO173886C publication Critical patent/NO173886C/no

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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Dental Preparations (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Seasonings (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Glass Compositions (AREA)
  • Noodles (AREA)
NO881404A 1987-04-02 1988-03-29 Fremgangsmaate for bleking av mekanisk tremasse NO173886C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8704844A FR2613388B1 (fr) 1987-04-02 1987-04-02 Procede de blanchiment de pates

Publications (4)

Publication Number Publication Date
NO881404D0 NO881404D0 (no) 1988-03-29
NO881404L NO881404L (no) 1988-10-03
NO173886B NO173886B (no) 1993-11-08
NO173886C true NO173886C (no) 1994-02-16

Family

ID=9349862

Family Applications (1)

Application Number Title Priority Date Filing Date
NO881404A NO173886C (no) 1987-04-02 1988-03-29 Fremgangsmaate for bleking av mekanisk tremasse

Country Status (11)

Country Link
EP (1) EP0285530B1 (de)
JP (1) JPS63256786A (de)
AT (1) ATE84581T1 (de)
AU (1) AU606930B2 (de)
CA (1) CA1310797C (de)
DE (2) DE3877403T2 (de)
ES (1) ES2004846T3 (de)
FI (1) FI93749C (de)
FR (1) FR2613388B1 (de)
NO (1) NO173886C (de)
NZ (1) NZ224144A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647641B1 (fr) * 1989-06-05 1992-01-17 Atochem Procede de fabrication de pulpes vegetales blanchies
SE467006B (sv) 1989-06-06 1992-05-11 Eka Nobel Ab Blekning av kemisk massa med peroxid varvid massan foerst behandlas med en komplexbildare
DE402335T1 (de) * 1989-06-06 1992-04-09 Eka Nobel Ab, Surte, Se Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.
SE9001481L (sv) * 1990-04-23 1991-10-24 Eka Nobel Ab Reduktion av halogenorganiska foereningar i blekeriavlopp
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
FR2661430B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde d'hydrogene de pates a papier a haut rendement.
FR2661431B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement.
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
ZA955290B (en) * 1994-07-11 1996-12-27 Ingersoll Rand Co Peroxide bleaching process for cellulosic and lignocellulosic material
JP4580343B2 (ja) * 2003-10-02 2010-11-10 アンドリッツ インコーポレーテッド リファイナーブローライン処理を伴うアルカリ過酸化物を用いた多段階メカニカルパルプ化方法
US8298373B2 (en) 2008-02-07 2012-10-30 University Of New Brunswick Combined process of peroxide bleaching of wood pulps and addition of optical brightening agents

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL202075A (de) * 1954-11-19 Fmc Corp
US3251731A (en) * 1963-02-11 1966-05-17 Andrew J Gard Bleaching of wood pulp with a sequestering agent and hydrogen peroxide
JPS5344563A (en) * 1976-10-05 1978-04-21 Ouchi Shinkou Kagaku Kougiyou Preparation of benzothiazolylsulfenamide
GB1590704A (en) * 1976-11-23 1981-06-10 Defibrator Ab Method end device for the continuous production of pulp from fibrous lignocellulosic materials

Also Published As

Publication number Publication date
FI881544A0 (fi) 1988-03-31
NO881404L (no) 1988-10-03
ES2004846A4 (es) 1989-02-16
AU1406788A (en) 1988-10-06
NO173886B (no) 1993-11-08
NO881404D0 (no) 1988-03-29
DE285530T1 (de) 1989-03-30
FI93749B (fi) 1995-02-15
FR2613388B1 (fr) 1990-05-04
DE3877403T2 (de) 1993-05-19
JPH0156197B2 (de) 1989-11-29
EP0285530B1 (de) 1993-01-13
JPS63256786A (ja) 1988-10-24
ATE84581T1 (de) 1993-01-15
FR2613388A1 (fr) 1988-10-07
NZ224144A (en) 1989-07-27
AU606930B2 (en) 1991-02-21
FI93749C (fi) 1995-05-26
CA1310797C (fr) 1992-12-01
EP0285530A1 (de) 1988-10-05
FI881544A (fi) 1988-10-03
ES2004846T3 (es) 1993-06-16
DE3877403D1 (de) 1993-02-25

Similar Documents

Publication Publication Date Title
NO173886C (no) Fremgangsmaate for bleking av mekanisk tremasse
SE7902901L (sv) Sett for blekning av oxygendelignifierad, cellulosahaltig massa med ozon
SE8501246D0 (sv) Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvendning av enstegsimpregnering
SE7900302L (sv) Sett vid defibrering respektive raffinering av lignocellulosahaltiga fibermaterial
DE69202791D1 (de) Verfahren zum Blanchieren von pflanzlicher Materie in trockenem Milieu.
GB1100709A (en) Two-stage purification of fibrous cellulose material
DE351330T1 (de) Verfahren zur herstellung von gebleichten chemithermomechanischen zellstoffen.
ATE61639T1 (de) Verfahren zur herstellung von chemithermomechanischen zellstoffen.
SE8700313L (sv) Forfarande for blekning av mekaniska massor
SE8503597L (sv) Forbettrad delignifiering av massa
FI793720A (fi) Foerfarande foer faergfoerbaettring och luktborttagning av sulfatmassa
FI20001787A (fi) Höyrykäsittely
SE8702808D0 (sv) Massakokning med hogt utbyte
NO920829D0 (no) Fremgangsmaate for bleking av cellulose i alifatiske monokarboksylsyrer
SE8501032L (sv) Kontinuerligt syre-alkaliextraktionsforfarande for blekning och delignifiering av tremassa samt anordning herfor
SE9002001D0 (sv) Metod foer tillfoersel av vaeteperoxid i cellulosasuspensioner
PT83751A (en) Improved process for the delignification and bleaching of a cellulose pulp with an alkali-oxygen-hypochlorite extraction
ES2001456A6 (es) Un metodo para deslignificacion y decoloracion de una pulpa de celulosa con una extraccion alcali-oxigeno-hipoclorito