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BR9104455A - PROCESS FOR DESIGNIFICATION OF PULP WITH OXYGEN, PROCESS FOR DESIGNIFICATION AND TARGETING OF PULP AND PULP - Google Patents

PROCESS FOR DESIGNIFICATION OF PULP WITH OXYGEN, PROCESS FOR DESIGNIFICATION AND TARGETING OF PULP AND PULP

Info

Publication number
BR9104455A
BR9104455A BR919104455A BR9104455A BR9104455A BR 9104455 A BR9104455 A BR 9104455A BR 919104455 A BR919104455 A BR 919104455A BR 9104455 A BR9104455 A BR 9104455A BR 9104455 A BR9104455 A BR 9104455A
Authority
BR
Brazil
Prior art keywords
pulp
designification
targeting
oxygen
Prior art date
Application number
BR919104455A
Other languages
Portuguese (pt)
Inventor
Malcolm Cronlund
Jairo H Lora
Jeanne L Powers
Original Assignee
Repap Technologies Inc
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 Repap Technologies Inc filed Critical Repap Technologies Inc
Publication of BR9104455A publication Critical patent/BR9104455A/en

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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BR919104455A 1990-10-12 1991-10-14 PROCESS FOR DESIGNIFICATION OF PULP WITH OXYGEN, PROCESS FOR DESIGNIFICATION AND TARGETING OF PULP AND PULP BR9104455A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59676590A 1990-10-12 1990-10-12
US77062891A 1991-10-03 1991-10-03

Publications (1)

Publication Number Publication Date
BR9104455A true BR9104455A (en) 1992-06-09

Family

ID=27082622

Family Applications (1)

Application Number Title Priority Date Filing Date
BR919104455A BR9104455A (en) 1990-10-12 1991-10-14 PROCESS FOR DESIGNIFICATION OF PULP WITH OXYGEN, PROCESS FOR DESIGNIFICATION AND TARGETING OF PULP AND PULP

Country Status (8)

Country Link
EP (1) EP0480469A3 (en)
JP (1) JPH06287881A (en)
AU (2) AU8575691A (en)
BR (1) BR9104455A (en)
CA (1) CA2053035C (en)
FI (1) FI914766A7 (en)
MX (1) MX9101558A (en)
PT (1) PT99205A (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2073027T3 (en) * 1990-05-17 1995-08-01 Union Camp Patent Holding ENVIRONMENTALLY IMPROVED PROCEDURE FOR WHITENING LIGNOCELLULOSIC MATERIALS.
SE512137C2 (en) † 1992-10-29 2000-01-31 Eka Chemicals Ab Process for bleaching lignocellulosic pulp
MX9307415A (en) * 1992-11-27 1994-07-29 Eka Nobel Ab PROCESS FOR THE DELIGNIFICATION OF PULP CONTAINING LIGNOCELLULOSE.
US6007678A (en) * 1992-11-27 1999-12-28 Eka Nobel Ab Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof
BE1006881A3 (en) * 1993-03-02 1995-01-17 Solvay Interox Method for delignification of chemical pulp.
CA2163389A1 (en) * 1994-11-23 1996-05-24 Malcolm Cronlund Chlorine-free organosolv pulps
WO1997036040A1 (en) * 1996-03-25 1997-10-02 Alcell Technologies Inc. Ozone-bleached organosolv pulps
JP3794254B2 (en) * 2000-02-28 2006-07-05 王子製紙株式会社 Neutral paper
SE532370C2 (en) * 2008-02-28 2009-12-29 Metso Paper Inc Method of bleaching a pulp
US9511167B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
US9512563B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Surface treated modified cellulose from chemical kraft fiber and methods of making and using same
MX382646B (en) 2009-05-28 2025-03-13 Gp Cellulose Gmbh MODIFIED CELLULOSE FROM CHEMICAL KRAFT FIBER AND METHODS FOR PRODUCTION AND USE.
US9551076B2 (en) 2011-05-31 2017-01-24 Clean Chemistry, Inc. Electrochemical reactor and process
US9517955B2 (en) 2012-09-07 2016-12-13 Clean Chemistry, Llc System and method for generation of point of use reactive oxygen species
EP2954115B1 (en) * 2013-02-08 2022-01-12 GP Cellulose GmbH Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products
BR112015019882A2 (en) 2013-03-14 2017-07-18 Gp Cellulose Gmbh oxidized bleached kraft fiber and methods for making kraft pulp and softwood kraft fiber and for bleaching multi-stage bleaching cellulose kraft pulp
AU2014229512B2 (en) 2013-03-15 2017-06-22 Gp Cellulose Gmbh A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
FR3007044B1 (en) * 2013-06-13 2016-01-15 Air Liquide PROCESS FOR TREATING CHEMICAL PAPER PASTES BY OZONE TREATMENT IN THE PRESENCE OF MAGNESIUM IONS
AT515152B1 (en) * 2013-11-26 2015-12-15 Chemiefaser Lenzing Ag A process for pretreating recovered cotton fibers for use in the manufacture of regenerated cellulose moldings
EP3189016B1 (en) 2014-09-04 2020-06-03 Clean Chemistry, Inc. Method of water treatment utilizing a peracetate oxidant solution
WO2016154531A1 (en) 2015-03-26 2016-09-29 Clean Chemistry, Inc. Systems and methods of reducing a bacteria population in high hydrogen sulfide water
US10883224B2 (en) 2015-12-07 2021-01-05 Clean Chemistry, Inc. Methods of pulp fiber treatment
CA3007778C (en) * 2015-12-07 2023-09-26 Clean Chemistry, Inc. Methods of microbial control
US11136714B2 (en) 2016-07-25 2021-10-05 Clean Chemistry, Inc. Methods of optical brightening agent removal
WO2018093697A1 (en) 2016-11-16 2018-05-24 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same
US11311012B1 (en) 2017-09-07 2022-04-26 Clean Chemistry, Inc. Bacterial control in fermentation systems
US11591751B2 (en) 2019-09-17 2023-02-28 Gpcp Ip Holdings Llc High efficiency fiber bleaching process
US12286751B2 (en) 2021-01-06 2025-04-29 Gpcp Ip Holdings Llc Oxygen treatment of high kappa fibers
US12435469B2 (en) 2022-02-22 2025-10-07 Gpcp Ip Holdings Llc High yield chemical pulping and bleaching process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2219505C3 (en) * 1972-04-21 1974-10-17 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Chlorine-free multi-stage bleaching of cellulose
SE462919B (en) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab PROCEDURE TO PERFORM ALKALIE EXTRACTION OF CELLULOSAMASS IN THE PRESENCE OF ACID
AT373303B (en) * 1981-08-06 1984-01-10 Chemiefaser Lenzing Ag METHOD FOR THE PRODUCTION OF LOW-LEVEL CELLS
US4619733A (en) * 1983-11-30 1986-10-28 Kooi Boon Lam Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
DE3881676D1 (en) * 1988-01-25 1993-07-15 Acetocell Gmbh & Co Kg METHOD FOR TREATING LIGNINE-CONTAINING CELLULOSE MASS WITH OZONE.
AT395028B (en) * 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag METHOD FOR CHLORINE-FREE BLEACHING OF FIBER FIBER

Also Published As

Publication number Publication date
AU1018395A (en) 1995-03-09
FI914766L (en) 1992-04-13
EP0480469A2 (en) 1992-04-15
PT99205A (en) 1992-09-30
FI914766A7 (en) 1992-04-13
JPH06287881A (en) 1994-10-11
FI914766A0 (en) 1991-10-09
CA2053035C (en) 1997-09-30
AU8575691A (en) 1992-04-30
MX9101558A (en) 1992-06-05
CA2053035A1 (en) 1992-04-13
EP0480469A3 (en) 1994-06-01

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law