ATE2018T1 - Verfahren zur delignifizierung und zum bleichen von chemischen und halbchemischen zellstoffen. - Google Patents

Verfahren zur delignifizierung und zum bleichen von chemischen und halbchemischen zellstoffen.

Info

Publication number
ATE2018T1
ATE2018T1 AT80200450T AT80200450T ATE2018T1 AT E2018 T1 ATE2018 T1 AT E2018T1 AT 80200450 T AT80200450 T AT 80200450T AT 80200450 T AT80200450 T AT 80200450T AT E2018 T1 ATE2018 T1 AT E2018T1
Authority
AT
Austria
Prior art keywords
chemical
delignification
bleaching
semi
processes
Prior art date
Application number
AT80200450T
Other languages
English (en)
Inventor
Georges Papageorges
Pierre Ledoux
Original Assignee
Interox Societe Anonyme Dite:
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9225939&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE2018(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Interox Societe Anonyme Dite: filed Critical Interox Societe Anonyme Dite:
Application granted granted Critical
Publication of ATE2018T1 publication Critical patent/ATE2018T1/de

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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Detergent Compositions (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
AT80200450T 1979-05-25 1980-05-14 Verfahren zur delignifizierung und zum bleichen von chemischen und halbchemischen zellstoffen. ATE2018T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7913554A FR2457339A1 (fr) 1979-05-25 1979-05-25 Procede pour la delignification et le blanchiment de pates cellulosiques chimiques et semi-chimiques
EP80200450A EP0019963B1 (de) 1979-05-25 1980-05-14 Verfahren zur Delignifizierung und zum Bleichen von chemischen und halbchemischen Zellstoffen

Publications (1)

Publication Number Publication Date
ATE2018T1 true ATE2018T1 (de) 1982-12-15

Family

ID=9225939

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80200450T ATE2018T1 (de) 1979-05-25 1980-05-14 Verfahren zur delignifizierung und zum bleichen von chemischen und halbchemischen zellstoffen.

Country Status (6)

Country Link
US (1) US4459174A (de)
EP (1) EP0019963B1 (de)
AT (1) ATE2018T1 (de)
DE (1) DE3061330D1 (de)
ES (1) ES8102237A1 (de)
FR (1) FR2457339A1 (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566015B1 (fr) * 1984-06-15 1986-08-29 Centre Tech Ind Papier Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene
DE3802401A1 (de) * 1988-01-28 1989-08-03 Degussa Verfahren zur herstellung von halbgebleichtem kraftzellstoff
US5023097A (en) * 1988-04-05 1991-06-11 Xylan, Inc. Delignification of non-woody biomass
US4842877A (en) * 1988-04-05 1989-06-27 Xylan, Inc. Delignification of non-woody biomass
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5011572A (en) * 1989-05-19 1991-04-30 Fmc Corporation Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage
ES2038097T5 (es) * 1989-06-06 2001-05-01 Eka Chemicals Ab Procedimiento para blanquear pastas papeleras que contienen lignocelulosa.
DE3923728A1 (de) * 1989-07-18 1991-01-24 Degussa Verfahren zur stabilisierung der viskositaet von zellstoffen
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
SE9001481L (sv) * 1990-04-23 1991-10-24 Eka Nobel Ab Reduktion av halogenorganiska foereningar i blekeriavlopp
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
ES2049165B1 (es) * 1990-08-10 1994-10-16 Whites Martins Gases Ind S A Procedimiento para pre-blanquear o deslignificar pasta kraft empleando oxigeno.
BE1004674A3 (fr) * 1991-03-11 1993-01-12 Interox Internat Sa Procede pour le blanchiment d'une pate a papier chimique et application de ce procede au blanchiment d'une pate kraft.
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5656130A (en) * 1995-04-28 1997-08-12 Union Camp Holding, Inc. Ambient temperature pulp bleaching with peroxyacid salts
US5705216A (en) * 1995-08-11 1998-01-06 Tyson; George J. Production of hydrophobic fibers
BE1011129A4 (fr) * 1997-04-25 1999-05-04 Solvay Interox Procede continu de delignification et/ou de blanchiment de pate a papier chimique vierge ou recyclee.
JP2004534653A (ja) * 2001-07-17 2004-11-18 ジー−ウェイ リャン 天然有機物質の親水性／疎水性特性を変化させるための酸化的熱化学乾燥プロセス
EP1607519B1 (de) * 2004-06-14 2008-02-20 Warwick International Group Limited Aktivator zum Zellstoffbleichen
US8138106B2 (en) 2005-09-30 2012-03-20 Rayonier Trs Holdings Inc. Cellulosic fibers with odor control characteristics
DK2213678T3 (da) * 2007-10-17 2013-12-02 Nippon Steel & Sumikin Chem Co Fremgangsmåde til fremstilling af opløst lignin, saccharidråmateriale og monosaccharidråmateriale såvel som opløst lignin
FR2951096B1 (fr) 2009-10-09 2013-03-15 Total Sa Procede d'oxydation de composes organiques

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI45574C (fi) * 1970-05-11 1972-07-10 Kymin Oy Kymmene Ab Menetelmä selluloosapitoisten aineiden valkaisemiseksi.
CA966604A (en) * 1970-12-21 1975-04-29 Scott Paper Company Kraft pulp bleaching and recovery process
US4196043A (en) * 1970-12-21 1980-04-01 Scott Paper Company Kraft pulp bleaching and recovery process
US3719552A (en) * 1971-06-18 1973-03-06 American Cyanamid Co Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp

Also Published As

Publication number Publication date
ES491799A0 (es) 1980-12-16
DE3061330D1 (en) 1983-01-20
ES8102237A1 (es) 1980-12-16
FR2457339B1 (de) 1982-09-17
FR2457339A1 (fr) 1980-12-19
EP0019963B1 (de) 1982-12-15
US4459174A (en) 1984-07-10
EP0019963A1 (de) 1980-12-10

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee