EP0480469A3 - Chlorine-free wood pulps and process of making - Google Patents

Chlorine-free wood pulps and process of making Download PDF

Info

Publication number
EP0480469A3
EP0480469A3 EP19910117401 EP91117401A EP0480469A3 EP 0480469 A3 EP0480469 A3 EP 0480469A3 EP 19910117401 EP19910117401 EP 19910117401 EP 91117401 A EP91117401 A EP 91117401A EP 0480469 A3 EP0480469 A3 EP 0480469A3
Authority
EP
European Patent Office
Prior art keywords
chlorine
making
wood pulps
free wood
free
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.)
Withdrawn
Application number
EP19910117401
Other versions
EP0480469A2 (en
Inventor
Malcolm Cronlund
Jairo H Lora
Jeanne L Powers
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.)
Alcell Technologies Inc
Original Assignee
Alcell 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 Alcell Technologies Inc filed Critical Alcell Technologies Inc
Publication of EP0480469A2 publication Critical patent/EP0480469A2/en
Publication of EP0480469A3 publication Critical patent/EP0480469A3/en
Withdrawn legal-status Critical Current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
    • D21C9/147—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
EP19910117401 1990-10-12 1991-10-11 Chlorine-free wood pulps and process of making Withdrawn EP0480469A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US59676590A 1990-10-12 1990-10-12
US596765 1990-10-12
US77062891A 1991-10-03 1991-10-03
US770628 1991-10-03

Publications (2)

Publication Number Publication Date
EP0480469A2 EP0480469A2 (en) 1992-04-15
EP0480469A3 true EP0480469A3 (en) 1994-06-01

Family

ID=27082622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910117401 Withdrawn EP0480469A3 (en) 1990-10-12 1991-10-11 Chlorine-free wood pulps and process of making

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) FI914766A (en)
MX (1) MX9101558A (en)
PT (1) PT99205A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
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
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
US9512561B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69019350T2 (en) * 1990-05-17 1996-02-15 Union Camp Patent Holding MORE ENVIRONMENTALLY FRIENDLY METHOD FOR BLEACHING LIGNOCELLULOSIC MATERIALS.
SE512137C2 (en) † 1992-10-29 2000-01-31 Eka Chemicals Ab Process for bleaching lignocellulosic pulp
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
DE69306974T3 (en) * 1992-11-27 2004-01-08 Eka Chemicals Ab METHOD FOR THE DELIGRIFICATION OF LIGNOCELLULOSE-CONTAINING PULP
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
AU2400697A (en) * 1996-03-25 1997-10-17 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
WO2012166997A2 (en) 2011-05-31 2012-12-06 Clean Chemistry, Llc Electrochemical reactor and process
CN104812706B (en) 2012-09-07 2019-06-25 清洁化学公司 For generating the system and method and its application of reactive oxygen species
BR112015018492A2 (en) * 2013-02-08 2017-07-18 Gp Cellulose Gmbh kraft fiber and method for making oxidized kraft pulp
CA2901665A1 (en) 2013-03-14 2014-09-18 Gp Cellulose Gmbh A method of making highly functional, low viscosity kraft fiber using an acidic bleaching sequence and a fiber made by the process
RU2661836C2 (en) 2013-03-15 2018-07-19 ДжиПи СЕЛЛЬЮЛОУС ГМБХ Low viscosity kraft fibre having higher carboxyl content and methods of making and using 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
US10472265B2 (en) 2015-03-26 2019-11-12 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
US10865519B2 (en) 2016-11-16 2020-12-15 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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367859A1 (en) * 1972-04-21 1978-05-12 Degussa PROCE
FR2456159A1 (en) * 1979-05-11 1980-12-05 Sca Development Ab PROCESS FOR BLEACHING WITH LIGNOCELLULOSE-CONTAINING MATERIAL OXYGEN
DE3227843A1 (en) * 1981-08-06 1983-02-24 Chemiefaser Lenzing AG, 4860 Lenzing, Oberösterreich Process for producing pulps of low lignin content
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
EP0325890A1 (en) * 1988-01-25 1989-08-02 Acetocell GmbH & Co. KG Process for treating lignin containing cellulose pulp with ozone
EP0441113A1 (en) * 1990-02-07 1991-08-14 Lenzing Aktiengesellschaft Process for the chlorine-free bleaching of cellulosic pulp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367859A1 (en) * 1972-04-21 1978-05-12 Degussa PROCE
FR2456159A1 (en) * 1979-05-11 1980-12-05 Sca Development Ab PROCESS FOR BLEACHING WITH LIGNOCELLULOSE-CONTAINING MATERIAL OXYGEN
DE3227843A1 (en) * 1981-08-06 1983-02-24 Chemiefaser Lenzing AG, 4860 Lenzing, Oberösterreich Process for producing pulps of low lignin content
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
EP0325890A1 (en) * 1988-01-25 1989-08-02 Acetocell GmbH & Co. KG Process for treating lignin containing cellulose pulp with ozone
EP0441113A1 (en) * 1990-02-07 1991-08-14 Lenzing Aktiengesellschaft Process for the chlorine-free bleaching of cellulosic pulp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
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
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
US9512561B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
US9512562B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same

Also Published As

Publication number Publication date
AU1018395A (en) 1995-03-09
BR9104455A (en) 1992-06-09
FI914766A0 (en) 1991-10-09
CA2053035A1 (en) 1992-04-13
PT99205A (en) 1992-09-30
MX9101558A (en) 1992-06-05
JPH06287881A (en) 1994-10-11
CA2053035C (en) 1997-09-30
AU8575691A (en) 1992-04-30
EP0480469A2 (en) 1992-04-15
FI914766A (en) 1992-04-13

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