SE9203585L - Delignifiering och blekning av lignocellulosahaltig massa med persyra och klorfritt blekmedel - Google Patents

Delignifiering och blekning av lignocellulosahaltig massa med persyra och klorfritt blekmedel

Info

Publication number
SE9203585L
SE9203585L SE9203585A SE9203585A SE9203585L SE 9203585 L SE9203585 L SE 9203585L SE 9203585 A SE9203585 A SE 9203585A SE 9203585 A SE9203585 A SE 9203585A SE 9203585 L SE9203585 L SE 9203585L
Authority
SE
Sweden
Prior art keywords
peracid
pulp
delignification
bleaching
chlorine
Prior art date
Application number
SE9203585A
Other languages
English (en)
Other versions
SE500605C2 (sv
SE9203585D0 (sv
Inventor
Magnus Linsten
Jiri Basta
Ann-Sofie Haellstroem
Original Assignee
Eka Nobel Ab
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 Eka Nobel Ab filed Critical Eka Nobel Ab
Priority to SE9203585A priority Critical patent/SE500605C2/sv
Publication of SE9203585D0 publication Critical patent/SE9203585D0/sv
Priority to ZA938748A priority patent/ZA938748B/xx
Priority to JP6513052A priority patent/JP2864167B2/ja
Priority to EP94901143A priority patent/EP0670928B2/en
Priority to ES94901143T priority patent/ES2096441T3/es
Priority to PCT/SE1993/001019 priority patent/WO1994012721A1/en
Priority to CA002149648A priority patent/CA2149648C/en
Priority to AT94901143T priority patent/ATE146833T1/de
Priority to DE69306974T priority patent/DE69306974T3/de
Priority to RU9595114367A priority patent/RU2097462C1/ru
Priority to BR9307521-9A priority patent/BR9307521A/pt
Priority to US08/436,243 priority patent/US5785812A/en
Priority to PL93309191A priority patent/PL309191A1/xx
Priority to MX9307415A priority patent/MX9307415A/es
Priority to AU55832/94A priority patent/AU670659B2/en
Priority to NZ258274A priority patent/NZ258274A/en
Priority to CZ951329A priority patent/CZ282692B6/cs
Publication of SE9203585L publication Critical patent/SE9203585L/sv
Publication of SE500605C2 publication Critical patent/SE500605C2/sv
Priority to FI952552A priority patent/FI118571B/sv
Priority to NO952076A priority patent/NO307260B1/no
Priority to US09/026,510 priority patent/US6007678A/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
    • 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
    • D21C9/147—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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE9203585A 1992-11-27 1992-11-27 Delignifiering och blekning av lignocellulosahaltig massa med persyra och klorfritt blekmedel SE500605C2 (sv)

Priority Applications (20)

Application Number Priority Date Filing Date Title
SE9203585A SE500605C2 (sv) 1992-11-27 1992-11-27 Delignifiering och blekning av lignocellulosahaltig massa med persyra och klorfritt blekmedel
ZA938748A ZA938748B (en) 1992-11-27 1993-11-23 Process for delignification of lignocellulose-containing pulp
CZ951329A CZ282692B6 (cs) 1992-11-27 1993-11-25 Způsob delignifikace buničiny obsahující lignocelulozu
BR9307521-9A BR9307521A (pt) 1992-11-27 1993-11-25 Processo para a deslignificação e alvejamento de polpa contendo lignocelulose
US08/436,243 US5785812A (en) 1992-11-27 1993-11-25 Process for treating oxygen delignified pulp using an organic peracid or salt, complexing agent and peroxide bleach sequence
ES94901143T ES2096441T3 (es) 1992-11-27 1993-11-25 Procedimiento para deslignificar pasta que contiene lignocelulosa.
PCT/SE1993/001019 WO1994012721A1 (en) 1992-11-27 1993-11-25 Process for delignification of lignocellulose-containing pulp
CA002149648A CA2149648C (en) 1992-11-27 1993-11-25 Process for delignification of lignocellulose-containing pulp
AT94901143T ATE146833T1 (de) 1992-11-27 1993-11-25 Verfahren zur deligrifizierung von lignocellulosehaltigem zellstoff
DE69306974T DE69306974T3 (de) 1992-11-27 1993-11-25 Verfahren zur deligrifizierung von lignocellulosehaltigem zellstoff
RU9595114367A RU2097462C1 (ru) 1992-11-27 1993-11-25 Способ делигнификации и отбеливания лигноцеллюлозосодержащей пульпы
JP6513052A JP2864167B2 (ja) 1992-11-27 1993-11-25 リグノセルロース含有パルプの脱リグニン化法
EP94901143A EP0670928B2 (en) 1992-11-27 1993-11-25 Process for delignification of lignocellulose-containing pulp
PL93309191A PL309191A1 (en) 1992-11-27 1993-11-25 Method delignifying a lignocellulose containing pulp
MX9307415A MX9307415A (es) 1992-11-27 1993-11-25 Proceso para la deslignificacion de pulpa que contiene lignocelulosa.
AU55832/94A AU670659B2 (en) 1992-11-27 1993-11-25 Process for delignification of lignocellulose-containing pulp
NZ258274A NZ258274A (en) 1992-11-27 1993-11-25 Delignifying and bleaching lignocellulose pulp using peracid delignification followed by treatment with a complexing agent then a chlorine-free bleach
FI952552A FI118571B (sv) 1992-11-27 1995-05-24 Förfarande för delignifiering av lignocellulosahaltig massa
NO952076A NO307260B1 (no) 1992-11-27 1995-05-26 Fremgangsmåte ved delignifisering og bleking av lignocelluloseholdig masse
US09/026,510 US6007678A (en) 1992-11-27 1998-02-19 Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9203585A SE500605C2 (sv) 1992-11-27 1992-11-27 Delignifiering och blekning av lignocellulosahaltig massa med persyra och klorfritt blekmedel

Publications (3)

Publication Number Publication Date
SE9203585D0 SE9203585D0 (sv) 1992-11-27
SE9203585L true SE9203585L (sv) 1994-05-28
SE500605C2 SE500605C2 (sv) 1994-07-25

Family

ID=20387965

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9203585A SE500605C2 (sv) 1992-11-27 1992-11-27 Delignifiering och blekning av lignocellulosahaltig massa med persyra och klorfritt blekmedel

Country Status (3)

Country Link
RU (1) RU2097462C1 (sv)
SE (1) SE500605C2 (sv)
ZA (1) ZA938748B (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI127996B (sv) * 2016-07-01 2019-07-15 Kemira Oyj Process för behandling av cellulosa

Also Published As

Publication number Publication date
RU2097462C1 (ru) 1997-11-27
SE500605C2 (sv) 1994-07-25
ZA938748B (en) 1994-06-30
SE9203585D0 (sv) 1992-11-27
RU95114367A (ru) 1996-12-27

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Legal Events

Date Code Title Description
NUG Patent has lapsed