PT92393A - Procede de blanchement de pates desencrees - Google Patents

Procede de blanchement de pates desencrees

Info

Publication number
PT92393A
PT92393A PT9239389A PT9239389A PT92393A PT 92393 A PT92393 A PT 92393A PT 9239389 A PT9239389 A PT 9239389A PT 9239389 A PT9239389 A PT 9239389A PT 92393 A PT92393 A PT 92393A
Authority
PT
Portugal
Prior art keywords
desencrees
blanchement
procede
pates
pates desencrees
Prior art date
Application number
PT9239389A
Other languages
English (en)
Other versions
PT92393B (pt
Inventor
Lucien Bourson
Michel Devic
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 PT92393A publication Critical patent/PT92393A/pt
Publication of PT92393B publication Critical patent/PT92393B/pt

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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/025—De-inking
    • 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
    • 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Coloring (AREA)
PT92393A 1988-11-24 1989-11-23 Processo para o bramqueamento de pastas de papel usado de que se eliminou a tinta PT92393B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8815637A FR2639371B1 (fr) 1988-11-24 1988-11-24 Procede de blanchiment de pates desencrees

Publications (2)

Publication Number Publication Date
PT92393A true PT92393A (pt) 1990-05-31
PT92393B PT92393B (pt) 1995-09-12

Family

ID=9372408

Family Applications (1)

Application Number Title Priority Date Filing Date
PT92393A PT92393B (pt) 1988-11-24 1989-11-23 Processo para o bramqueamento de pastas de papel usado de que se eliminou a tinta

Country Status (9)

Country Link
US (1) US5449436A (pt)
EP (1) EP0374057B1 (pt)
JP (1) JP2516437B2 (pt)
AT (1) ATE100509T1 (pt)
CA (1) CA2003587C (pt)
DE (2) DE374057T1 (pt)
ES (1) ES2015838T3 (pt)
FR (1) FR2639371B1 (pt)
PT (1) PT92393B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9208266D0 (en) * 1992-04-15 1992-06-03 Morton Int Inc Method of bleaching de-inked pulp
GB9212926D0 (en) * 1992-06-18 1992-07-29 Morton Int Inc Method of bleaching paper pulp
GB9214041D0 (en) * 1992-07-02 1992-08-12 Morton Int Inc Process for de-inking recycled paper pulp
US5464501A (en) * 1993-04-06 1995-11-07 Societe Anonyme Pour L'etude Et L'exploitation L'air Liquide, Des Procedes Georges Claude Bleaching recycled pulp with a reductive-oxidative sequence
SE501309C2 (sv) * 1993-05-28 1995-01-09 Klippans Finpappersbruk Ab Massaframställning genom uppslutning av en blandning av cellulosabaserat returmaterial och råträ
US5882476A (en) * 1995-05-05 1999-03-16 Solvay Minerals, Inc. Deinking printed wastepaper using alkaline solution containing sodium sulfite and sodium carbonate
US6325892B1 (en) 1998-09-23 2001-12-04 University Of New Brunswick Method of delignifying sulphite pulp with oxygen and borohydride
EP1418269B1 (en) * 2002-11-05 2009-02-11 Rohm And Haas Company Method for brightening virgin mechanical pulp
US20040211533A1 (en) * 2003-04-28 2004-10-28 Qiang Huang Method for bleaching and color stripping recycled fibers
CN100338295C (zh) * 2005-11-03 2007-09-19 苏州大学 大豆蛋白纤维漂白组合物及其漂白方法
US9932709B2 (en) * 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
FR2980491B1 (fr) 2011-09-27 2014-12-26 Oberthur Technologies Procede de traitement de surface d'un document de securite
CN113802403B (zh) * 2021-08-13 2022-07-26 湖北金汉江精制棉有限公司 一种高聚合度精制棉生产工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI43525B (pt) * 1963-03-07 1970-12-31 Fmc Corp
DE1546250A1 (de) * 1964-10-17 1970-08-13 Feldmuehle Ag Verfahren zum Bleichen von Holzschliff
US3384534A (en) * 1964-12-16 1968-05-21 Fmc Corp Bleaching of wood pulps with thiourea dioxide
DE2105324A1 (en) * 1969-07-30 1972-08-10 Vita Mayer & C gia F Ih Vita SAS, Mailand (Italien) Production of papermaking pulps
US3981765A (en) * 1969-07-30 1976-09-21 Vita Mayer & C. Treatment of wood chips with an alkali metal borohydride solution followed by mechanical defibration
JPS4838328A (pt) * 1971-09-17 1973-06-06
US3985674A (en) * 1974-12-10 1976-10-12 Virginia Chemicals Inc. Stabilized sodium dithionite solutions
DE3661641D1 (en) * 1985-02-15 1989-02-09 Kamyr Ab Multi peroxide stage mechanical pulp bleaching
FR2604197B1 (fr) * 1986-09-23 1988-11-18 Atochem Procede de blanchiment de matieres lignocellulosiques.
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.

Also Published As

Publication number Publication date
DE68912543D1 (de) 1994-03-03
FR2639371B1 (fr) 1995-04-14
EP0374057A2 (fr) 1990-06-20
ES2015838T3 (es) 1994-03-16
CA2003587A1 (fr) 1990-05-24
JP2516437B2 (ja) 1996-07-24
CA2003587C (fr) 1999-09-28
DE68912543T2 (de) 1994-06-30
ES2015838A4 (es) 1990-09-16
ATE100509T1 (de) 1994-02-15
PT92393B (pt) 1995-09-12
DE374057T1 (de) 1990-12-20
EP0374057A3 (fr) 1991-07-10
FR2639371A1 (fr) 1990-05-25
EP0374057B1 (fr) 1994-01-19
US5449436A (en) 1995-09-12
JPH02182985A (ja) 1990-07-17

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19950504

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20021130