FI104572B - Förfarande för blekning av kemisk massa - Google Patents

Förfarande för blekning av kemisk massa Download PDF

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Publication number
FI104572B
FI104572B FI970303A FI970303A FI104572B FI 104572 B FI104572 B FI 104572B FI 970303 A FI970303 A FI 970303A FI 970303 A FI970303 A FI 970303A FI 104572 B FI104572 B FI 104572B
Authority
FI
Finland
Prior art keywords
pulp
peracid
paa
chelating
bleaching
Prior art date
Application number
FI970303A
Other languages
English (en)
Finnish (fi)
Other versions
FI970303A0 (sv
FI970303A (sv
Inventor
Aarto Paren
Ilkka Renvall
Jukka Jaekaerae
Reijo Aksela
Original Assignee
Kemira Chemicals Oy
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
Priority claimed from FI962261A external-priority patent/FI112075B/sv
Application filed by Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Priority to FI970303A priority Critical patent/FI104572B/sv
Publication of FI970303A0 publication Critical patent/FI970303A0/sv
Priority to EP97924048A priority patent/EP0907788B1/en
Priority to CA002256579A priority patent/CA2256579C/en
Priority to AU29644/97A priority patent/AU2964497A/en
Priority to AT97924048T priority patent/ATE252178T1/de
Priority to US09/194,349 priority patent/US6264790B1/en
Priority to PCT/FI1997/000333 priority patent/WO1997045586A1/en
Priority to DE69725573T priority patent/DE69725573T2/de
Publication of FI970303A publication Critical patent/FI970303A/sv
Publication of FI104572B publication Critical patent/FI104572B/sv
Application granted granted Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C229/24—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having more than one carboxyl group bound to the carbon skeleton, e.g. aspartic acid
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/01—Hydrogen peroxide
    • C01B15/037—Stabilisation by additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C217/00—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton
    • C07C217/02—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C217/04—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C217/06—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one etherified hydroxy group and one amino group bound to the carbon skeleton, which is not further substituted
    • C07C217/08—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one etherified hydroxy group and one amino group bound to the carbon skeleton, which is not further substituted the oxygen atom of the etherified hydroxy group being further bound to an acyclic carbon atom
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (7)

1. Förfarande för blekning av kemisk massa, varvid massan delignifieras med persyra och dessutom kelateras massan för att binda tungmetaller säsom Fe, Mn och/eller Cu vid kelatkomplexet, kännetecknat av att kelateringen sker med en 4 5 kemikalie vald i gruppen bestaende av N-bis-((l,2-dikarboxyl-etoxi)-etyl)amin, N-bis-((l,2-dikarboxyl-etoxi)-etyl)aspartamsyra och N-tris-((l,2-dikarboxyl-etoxi)-etyl)amin samt alkali- och jordalkalisalter av dessa, och att persyra- och kelaterings-behandlingama utförs samtidigt genom att kombinera persyran och nämnda kelate-rande kemikalie i samma lösningsfas. 10
2. Förfarande enligt patentkrav 1, kännetecknat av att persyran är en perättiks-syra, Caron-syra eller en blandning av dessa.
3. Förfarande enligt patentkrav 2, kännetecknat av att persyran är perättikssyra. 15
4. Förfarande enligt nägot av föregäende patentkrav, kännetecknat av att den kombinerade persyra- och kelateringsbehandlingen av massan följer efter ozonbe-handlingssteget i blekningsprocessen. 20
5. Förfarande enligt nägot av föregäende patentkrav, kännetecknat av att efter den kombinerade persyra- och kelateringsbehandlingen av massan följer ett alkalisk peroxidbehandlingssteg.
6. Förfarande enligt patentkrav 5, kännetecknat av att i samband med persyra-25 och kelateringsbehandlingen tillsätts en magnesiumförening, säsom magnesiumsul- · fat, i massan.
7. Förfarande enligt patentkrav 5 eller 6, kännetecknat av att i persyra- och kela-teringssteget regleras pH i intervallen ca 4-8 och efter detta steg följer ett alkaliskt 30 peroxidsteg. 1 Förfarande enligt nägot av föregäende patentkrav, kännetecknat av att massan är en sulfatmassa gjord pä löv- eller barrträ.
FI970303A 1996-05-30 1997-01-24 Förfarande för blekning av kemisk massa FI104572B (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI970303A FI104572B (sv) 1996-05-30 1997-01-24 Förfarande för blekning av kemisk massa
DE69725573T DE69725573T2 (de) 1996-05-30 1997-05-30 Verfahren zum bleichen von zellstoff
AU29644/97A AU2964497A (en) 1996-05-30 1997-05-30 Process for the bleaching of chemical pulp
CA002256579A CA2256579C (en) 1996-05-30 1997-05-30 Process for the bleaching of chemical pulp
EP97924048A EP0907788B1 (en) 1996-05-30 1997-05-30 Process for the bleaching of chemical pulp
AT97924048T ATE252178T1 (de) 1996-05-30 1997-05-30 Verfahren zum bleichen von zellstoff
US09/194,349 US6264790B1 (en) 1996-05-30 1997-05-30 Process for the peracid bleaching of chelated chemical pulp
PCT/FI1997/000333 WO1997045586A1 (en) 1996-05-30 1997-05-30 Process for the bleaching of chemical pulp

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI962261 1996-05-30
FI962261A FI112075B (sv) 1996-05-30 1996-05-30 N-bis- eller N-tris[(1,2-dikarboxyl-etoxi)-etyl]aminderivat, framställning och användning av dem
FI970303A FI104572B (sv) 1996-05-30 1997-01-24 Förfarande för blekning av kemisk massa
FI970303 1997-01-24

Publications (3)

Publication Number Publication Date
FI970303A0 FI970303A0 (sv) 1997-01-24
FI970303A FI970303A (sv) 1997-12-01
FI104572B true FI104572B (sv) 2000-02-29

Family

ID=26160164

Family Applications (1)

Application Number Title Priority Date Filing Date
FI970303A FI104572B (sv) 1996-05-30 1997-01-24 Förfarande för blekning av kemisk massa

Country Status (8)

Country Link
US (1) US6264790B1 (sv)
EP (1) EP0907788B1 (sv)
AT (1) ATE252178T1 (sv)
AU (1) AU2964497A (sv)
CA (1) CA2256579C (sv)
DE (1) DE69725573T2 (sv)
FI (1) FI104572B (sv)
WO (1) WO1997045586A1 (sv)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105214B (sv) 1997-11-13 2000-06-30 Kemira Chemicals Oy Effektiverat förfarande för blekning av en kemisk massa
FI106258B (sv) 1998-03-09 2000-12-29 Kemira Chemicals Oy Förfaranden för framställning av ett N-bis-[2-(1,2-dikarboxi-etoxi)-etyl]aminderivat samt produkter som erhålls genom förfarandena och användningar därav
US7747434B2 (en) * 2000-10-24 2010-06-29 Speech Conversion Technologies, Inc. Integrated speech recognition, closed captioning, and translation system and method
DE10109502A1 (de) * 2001-02-28 2002-09-12 Rhodia Acetow Gmbh Verfahren zum Abtrennen von Hemicellulosen aus hemicellulosehaltiger Biomasse sowie die mit dem Verfahren erhältliche Biomasse und Hemicellulose
US20030162685A1 (en) * 2001-06-05 2003-08-28 Man Victor Fuk-Pong Solid cleaning composition including stabilized active oxygen component
US20030139310A1 (en) * 2001-08-07 2003-07-24 Smith Kim R. Peroxygen compositions and methods for carpet or upholstery cleaning or sanitizing
GB0128513D0 (en) * 2001-11-28 2002-01-23 Warwick Internat Group Ltd Re-cycled fibre bleaching
US20030136942A1 (en) * 2001-11-30 2003-07-24 Smith Kim R. Stabilized active oxygen compositions
US20040200588A1 (en) * 2003-04-10 2004-10-14 Walker Jayne M.A. Method of controlling microorganisms in hydrogen peroxide pulp bleaching processes
EP1811080A1 (en) * 2006-01-24 2007-07-25 Solvay SA Process for the bleaching of mechanical paper pulp
WO2009154898A1 (en) 2008-06-20 2009-12-23 International Paper Company Composition and recording sheet with improved optical properties
US8034759B2 (en) * 2008-10-31 2011-10-11 Ecolab Usa Inc. Enhanced stability peracid compositions
EP2435628B1 (en) * 2009-05-29 2014-04-09 Solvay Sa Process for the bleaching of mechanical paper pulp
EP3645506B1 (en) * 2017-06-30 2021-11-24 Kemira Oyj Process for the preparation of a mixture of chelating agents, mixture of chelating agents and methods of using them
WO2020249992A1 (en) * 2019-06-14 2020-12-17 Bracell Bahia Specialty Cellulose SA High alpha and high intrinsic viscosity pulp production apparatuses, methods and systems
US11142589B2 (en) 2019-06-14 2021-10-12 Bracell Bahia Specialty Cellulose SA High alpha and high intrinsic viscosity pulp production apparatuses, methods and systems

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512708A (ja) 1974-06-28 1976-01-10 Lion Fat Oil Co Ltd Senjozaisoseibutsu
US4044034A (en) 1975-07-22 1977-08-23 The Miranol Chemical Company, Inc. Nitrogenous condensation products
JP2896541B2 (ja) 1991-09-11 1999-05-31 コニカ株式会社 ハロゲン化銀写真感光材料用処理液
US5205907A (en) * 1991-11-25 1993-04-27 Macmillan Bloedel Limited Removal of manganese from pulp using a chelating agent and magnesium sulphate
ES2086183T3 (es) * 1992-07-06 1996-06-16 Solvay Interox Procedimiento para la deslignificacion de una pasta papelera quimica.
ES2096441T3 (es) * 1992-11-27 1997-03-01 Eka Chemicals Ab Procedimiento para deslignificar pasta que contiene lignocelulosa.
JPH06282044A (ja) 1993-03-26 1994-10-07 Konica Corp ハロゲン化銀写真感光材料用固形処理剤包装体
JPH07120894A (ja) 1993-10-21 1995-05-12 Fuji Photo Film Co Ltd 写真用処理組成物及び処理方法
JPH07120899A (ja) 1993-10-27 1995-05-12 Fuji Photo Film Co Ltd 写真用処理組成物及び処理方法
DE4340043A1 (de) * 1993-11-24 1995-06-01 Henkel Kgaa Verwendung Stickstoff-haltiger Komplexbildner bei der Holzstoffbleiche
JPH07261355A (ja) 1994-03-17 1995-10-13 Fuji Photo Film Co Ltd カラー写真用処理装置および処理方法
CA2173824A1 (en) * 1995-04-27 1996-10-28 Brian A. Parker Ethylenediaminetriacetic acid and salts thereof as chelating agents in pulp bleaching

Also Published As

Publication number Publication date
FI970303A0 (sv) 1997-01-24
FI970303A (sv) 1997-12-01
CA2256579C (en) 2005-07-26
DE69725573D1 (de) 2003-11-20
AU2964497A (en) 1998-01-05
EP0907788B1 (en) 2003-10-15
WO1997045586A1 (en) 1997-12-04
US6264790B1 (en) 2001-07-24
EP0907788A1 (en) 1999-04-14
ATE252178T1 (de) 2003-11-15
DE69725573T2 (de) 2004-08-19
CA2256579A1 (en) 1997-12-04

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