FI914766A - Klorfri traemassa samt foerfarande foer framstaellning av denna. - Google Patents

Klorfri traemassa samt foerfarande foer framstaellning av denna. Download PDF

Info

Publication number
FI914766A
FI914766A FI914766A FI914766A FI914766A FI 914766 A FI914766 A FI 914766A FI 914766 A FI914766 A FI 914766A FI 914766 A FI914766 A FI 914766A FI 914766 A FI914766 A FI 914766A
Authority
FI
Finland
Prior art keywords
traemassa
chlorfria
denna
foerfarande foer
foer framstaellning
Prior art date
Application number
FI914766A
Other languages
English (en)
Other versions
FI914766A0 (fi
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 FI914766A0 publication Critical patent/FI914766A0/fi
Publication of FI914766A publication Critical patent/FI914766A/fi

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)
FI914766A 1990-10-12 1991-10-09 Klorfri traemassa samt foerfarande foer framstaellning av denna. FI914766A (fi)

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 (2)

Publication Number Publication Date
FI914766A0 FI914766A0 (fi) 1991-10-09
FI914766A true FI914766A (fi) 1992-04-13

Family

ID=27082622

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914766A FI914766A (fi) 1990-10-12 1991-10-09 Klorfri traemassa samt foerfarande foer framstaellning av denna.

Country Status (8)

Country Link
EP (1) EP0480469A3 (fi)
JP (1) JPH06287881A (fi)
AU (2) AU8575691A (fi)
BR (1) BR9104455A (fi)
CA (1) CA2053035C (fi)
FI (1) FI914766A (fi)
MX (1) MX9101558A (fi)
PT (1) PT99205A (fi)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU638017B2 (en) * 1990-05-17 1993-06-17 Union Camp Corporation Environmentally improved process for bleaching lignocellulosic materials
SE512137C2 (sv) † 1992-10-29 2000-01-31 Eka Chemicals Ab Förfarande för blekning av lignocellulosahaltig massa
US5785812A (en) * 1992-11-27 1998-07-28 Eka Nobel Ab Process for treating oxygen delignified pulp using an organic peracid or salt, complexing agent and peroxide bleach sequence
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 (fr) * 1993-03-02 1995-01-17 Solvay Interox Procede pour la delignification d'une pate a papier chimique.
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 (ja) * 2000-02-28 2006-07-05 王子製紙株式会社 中性紙
SE532370C2 (sv) * 2008-02-28 2009-12-29 Metso Paper Inc Metod för blekning av en massa
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
RU2683654C2 (ru) 2009-05-28 2019-04-01 ДжиПи СЕЛЛЬЮЛОУС ГМБХ Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования
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
US9551076B2 (en) 2011-05-31 2017-01-24 Clean Chemistry, Inc. Electrochemical reactor and process
WO2014039929A1 (en) 2012-09-07 2014-03-13 Clean Chemistry, Llc Systems and methods for generation of reactive oxygen species and applications thereof
WO2014122533A2 (en) 2013-02-08 2014-08-14 Gp Cellulose Gmbh Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products
RU2671653C2 (ru) 2013-03-14 2018-11-06 ДжиПи СЕЛЛЬЮЛОУС ГМБХ Способ изготовления высокофункционального маловязкого крафтволокна с использованием последовательности кислотного отбеливания и волокно, изготовленное с помощью этого процесса
JP6521873B2 (ja) 2013-03-15 2019-05-29 ゲーペー ツェルローゼ ゲーエムベーハー 増強されたカルボキシル含量を有する低粘度クラフト繊維ならびにその製造方法および使用方法
FR3007044B1 (fr) * 2013-06-13 2016-01-15 Air Liquide Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium
AT515152B1 (de) * 2013-11-26 2015-12-15 Chemiefaser Lenzing Ag Verfahren zum Vorbehandeln von rückgewonnenen Baumwollfasern zur Verwendung bei der Herstellung von Formkörpern aus regenerierter Cellulose
WO2016037149A1 (en) 2014-09-04 2016-03-10 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
WO2017100284A1 (en) 2015-12-07 2017-06-15 Clean Chemistry, Inc. Methods of microbial control
US10883224B2 (en) 2015-12-07 2021-01-05 Clean Chemistry, Inc. Methods of pulp fiber treatment
US11136714B2 (en) 2016-07-25 2021-10-05 Clean Chemistry, Inc. Methods of optical brightening agent removal
EP3541849B1 (en) 2016-11-16 2023-11-15 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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2219505C3 (de) * 1972-04-21 1974-10-17 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Chlorfreie Mehrstufenbleiche von Zellstoff
SE462919B (sv) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre
AT373303B (de) * 1981-08-06 1984-01-10 Chemiefaser Lenzing Ag Verfahren zur herstellung von zellstoffen mit niedrigem ligningehalt
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
ES2041828T3 (es) * 1988-01-25 1993-12-01 Acetocell Gmbh & Co. Kg Procedimiento para el tratamiento de masa de celulosa conteniendo lignina, con ozono.
AT395028B (de) * 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von kunstfaserzellstoff

Also Published As

Publication number Publication date
EP0480469A2 (en) 1992-04-15
MX9101558A (es) 1992-06-05
AU1018395A (en) 1995-03-09
BR9104455A (pt) 1992-06-09
CA2053035C (en) 1997-09-30
CA2053035A1 (en) 1992-04-13
EP0480469A3 (en) 1994-06-01
PT99205A (pt) 1992-09-30
JPH06287881A (ja) 1994-10-11
FI914766A0 (fi) 1991-10-09
AU8575691A (en) 1992-04-30

Similar Documents

Publication Publication Date Title
FI903357A0 (fi) Foerfarande foer utfoerning av ytplasmonresonansmaetning samt i foerfarandet anvaendbar givare.
FI914766A0 (fi) Klorfri traemassa samt foerfarande foer framstaellning av denna.
FI906469A (fi) Foerfarande foer diagnosticering av bristningen av fosterhinnorna samt reagensfoerpackning foer anvaendning daervid.
FI912831A0 (fi) Foerfarande foer taetning av skyddsvaeggar i schakt samt skyddsvaegg i schakt.
FI912381A (fi) Foerfarande foer delvis elektrolytisk dehalogenering av di- och trikloraettikssyra samt elektrolysloesning.
FI910170A0 (fi) Foerankrings- och moringssystem av plattformer samt foerankringsenhet.
FI901184A0 (fi) Vaddmatta samt foerfarande foer tillverkning av densamma.
FI910769A0 (fi) Foerfarande foer foerminskning av startstroem av en kortsluten asynkronmotor samt en foer tillaempning av foerfarandet avsedd kortsluten asynkronmotorenhet.
FI923890A0 (fi) Aongstraole- och vakuumanordning samt foerfarande foer anvaendning av densamma.
FI921159A0 (fi) Tvaopolig elektrod foer elektrolys- anordning av serietyp samt elektrolysanordning av serietyp.
FI900591A (fi) Apparatenhet foer fartyg, foerfarande foer apparatmontage samt formmedel foer tillverkning av flaensorgan.
FI87006B (fi) Foerfarande foer installering av en bergbult samt en bergbult.
FI902682A (fi) Foerfarande foer luftkonditionering av en byggnad samt en luftkonditionerad byggnad.
FI902595A (fi) Foerfarande foer styrning av en elektronstraole i en elektronaccelerator samt en elektronaccelerator.
FI902260A0 (fi) Foerfarande foer avlaegsnande av svavelfoereningar fraon roekgas samt en reaktor foer tillaempning av foerfarandet.
FI912830A (fi) Foerfarande foer taetning av skyddsvaeggar i schakt samt skyddsvaegg i schakt.
FI901365A (fi) Anordning foer stabilisering av fartyg samt foerfarande foer stabilisering av fartyg.
FI906125A (fi) Foerfarande foer tillverkning av pressplatta samt pressplatta.
FI900638A (fi) Foerfarande foer avkylning av en elektrisk komponent samt en avkylare framstaelld enligt foerfarandet.
FI900462A0 (fi) Fastsaettnings-, vertikalmonterings- och avvaeggningsdelar foer en vinkelledskena foer murningsarbete samt delar foer foerflyttning av murningstraodet.
FI900289A0 (fi) Foerfarande foer uppvaermning av ventilationens tilluft samt luftbehandlingsaggregat foer utfoering av foerfarandet.
FI902227A (fi) Foerfarande foer styrning av en pulsbreddmodulerad riktarbrygga samt en foer tillaempning av foerfarandet avsedd styrenhet.
FI904010A (fi) Foerfarande foer bestaemning av fyllningsgraden av behaollare i en framaotgaoende jaernvaegsvagn samt vaetskenivaomaetare foer genomfoerande av foerfarandet.
FI901904A0 (fi) Vaexel samt korskopplingsram foer en vaexel.
FI904069A0 (fi) Axialstroemningsalstrande omroeringsorgan samt foerfarande foer framstaellning daerav.

Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: ALCELL TECHNOLOGIES INC.

FD Application lapsed