SE514697C2 - Eliminering av metalljoner vid blekning av massa - Google Patents

Eliminering av metalljoner vid blekning av massa

Info

Publication number
SE514697C2
SE514697C2 SE9402885A SE9402885A SE514697C2 SE 514697 C2 SE514697 C2 SE 514697C2 SE 9402885 A SE9402885 A SE 9402885A SE 9402885 A SE9402885 A SE 9402885A SE 514697 C2 SE514697 C2 SE 514697C2
Authority
SE
Sweden
Prior art keywords
bleaching
pulp
chlorine dioxide
metal ions
elimination
Prior art date
Application number
SE9402885A
Other languages
English (en)
Swedish (sv)
Other versions
SE9402885L (sv
SE9402885D0 (sv
Inventor
Maarten Dahl
Original Assignee
Valmet Fibertech 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20395066&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE514697(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Valmet Fibertech Ab filed Critical Valmet Fibertech Ab
Priority to SE9402885A priority Critical patent/SE514697C2/sv
Publication of SE9402885D0 publication Critical patent/SE9402885D0/xx
Priority to AU34017/95A priority patent/AU687626B2/en
Priority to FI970821A priority patent/FI970821L/fi
Priority to CN95194782A priority patent/CN1065578C/zh
Priority to US08/793,509 priority patent/US6540872B1/en
Priority to PCT/SE1995/000920 priority patent/WO1996006976A1/en
Priority to BR9508653A priority patent/BR9508653A/pt
Priority to ES95930753T priority patent/ES2185715T3/es
Priority to JP8508659A priority patent/JPH10505639A/ja
Priority to AT95930753T priority patent/ATE226658T1/de
Priority to PT95930753T priority patent/PT778909E/pt
Priority to CA002197771A priority patent/CA2197771A1/en
Priority to NZ292288A priority patent/NZ292288A/en
Priority to EP95930753A priority patent/EP0778909B1/de
Priority to DE69528660T priority patent/DE69528660T2/de
Priority to ZA957070A priority patent/ZA957070B/xx
Publication of SE9402885L publication Critical patent/SE9402885L/
Priority to NO970907A priority patent/NO970907D0/no
Publication of SE514697C2 publication Critical patent/SE514697C2/sv

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
    • D21C9/1026—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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Detergent Compositions (AREA)
  • Semiconductor Lasers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Medicinal Preparation (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
SE9402885A 1994-08-31 1994-08-31 Eliminering av metalljoner vid blekning av massa SE514697C2 (sv)

Priority Applications (17)

Application Number Priority Date Filing Date Title
SE9402885A SE514697C2 (sv) 1994-08-31 1994-08-31 Eliminering av metalljoner vid blekning av massa
EP95930753A EP0778909B1 (de) 1994-08-31 1995-08-11 Bleichen von papierzellstoff
DE69528660T DE69528660T2 (de) 1994-08-31 1995-08-11 Bleichen von papierzellstoff
ES95930753T ES2185715T3 (es) 1994-08-31 1995-08-11 Blanqueo de pasta papelera.
PT95930753T PT778909E (pt) 1994-08-31 1995-08-11 Branqueamentode de pasta
CN95194782A CN1065578C (zh) 1994-08-31 1995-08-11 浆料的漂白
US08/793,509 US6540872B1 (en) 1994-08-31 1995-08-11 Process for chlorine dioxide bleaching using a chelating agent without an intermediate wash
PCT/SE1995/000920 WO1996006976A1 (en) 1994-08-31 1995-08-11 Pulp bleaching
BR9508653A BR9508653A (pt) 1994-08-31 1995-08-11 Processo de alvejar polpa quimica em diversas etapas
AU34017/95A AU687626B2 (en) 1994-08-31 1995-08-11 Pulp bleaching
JP8508659A JPH10505639A (ja) 1994-08-31 1995-08-11 パルプの漂白
AT95930753T ATE226658T1 (de) 1994-08-31 1995-08-11 Bleichen von papierzellstoff
FI970821A FI970821L (fi) 1994-08-31 1995-08-11 Massan valkaisu
CA002197771A CA2197771A1 (en) 1994-08-31 1995-08-11 Pulp bleaching
NZ292288A NZ292288A (en) 1994-08-31 1995-08-11 Pulp bleaching; chemical pulp bleached using chlorine dioxide, hydrogen peroxide and chelating agent
ZA957070A ZA957070B (en) 1994-08-31 1995-08-23 Pulp bleaching
NO970907A NO970907D0 (no) 1994-08-31 1997-02-27 Bleking av masse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402885A SE514697C2 (sv) 1994-08-31 1994-08-31 Eliminering av metalljoner vid blekning av massa

Publications (3)

Publication Number Publication Date
SE9402885D0 SE9402885D0 (sv) 1994-08-31
SE9402885L SE9402885L (sv) 1996-03-01
SE514697C2 true SE514697C2 (sv) 2001-04-02

Family

ID=20395066

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9402885A SE514697C2 (sv) 1994-08-31 1994-08-31 Eliminering av metalljoner vid blekning av massa

Country Status (17)

Country Link
US (1) US6540872B1 (de)
EP (1) EP0778909B1 (de)
JP (1) JPH10505639A (de)
CN (1) CN1065578C (de)
AT (1) ATE226658T1 (de)
AU (1) AU687626B2 (de)
BR (1) BR9508653A (de)
CA (1) CA2197771A1 (de)
DE (1) DE69528660T2 (de)
ES (1) ES2185715T3 (de)
FI (1) FI970821L (de)
NO (1) NO970907D0 (de)
NZ (1) NZ292288A (de)
PT (1) PT778909E (de)
SE (1) SE514697C2 (de)
WO (1) WO1996006976A1 (de)
ZA (1) ZA957070B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6375797B1 (en) * 1996-06-20 2002-04-23 Andritz-Ahlstrom Oy Bleaching chemical pulp in a PkDQ-Po Sequence
SE507742C2 (sv) * 1996-11-08 1998-07-06 Sunds Defibrator Ind Ab Förblekningsbehandling av pappersmassa med klordioxid, alkali och komplexbildare utan mellanliggande tvättar
SE0200981D0 (sv) * 2002-03-28 2002-03-28 Eka Chemicals Ab Process for bleaching lignocellulose-containing non-wood pulp
JP4513959B2 (ja) * 2004-09-17 2010-07-28 三菱瓦斯化学株式会社 製紙用化学パルプの半晒漂白方法
FI123102B (fi) * 2006-03-31 2012-11-15 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
WO2009154898A1 (en) 2008-06-20 2009-12-23 International Paper Company Composition and recording sheet with improved optical properties
CN101812812B (zh) * 2009-02-25 2012-08-08 山东福荫造纸环保科技有限公司 一种植物纤维浆料无元素氯的漂白方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1100709A (en) * 1965-06-25 1968-01-24 Pulp Paper Res Inst Two-stage purification of fibrous cellulose material
DE2219504C2 (de) * 1972-04-21 1974-10-03 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
ATE97179T1 (de) * 1989-06-06 1993-11-15 Eka Nobel Ab Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
SE9000340L (sv) * 1990-01-31 1991-08-01 Eka Nobel Ab Foerfarande vid blekning av lignocellulosahaltigt material
SE469842C (sv) * 1992-01-21 1996-01-15 Sunds Defibrator Ind Ab Blekning av kemisk massa med peroxid
SE9301960L (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
SE502706E (sv) * 1994-04-05 1999-09-27 Mo Och Domsjoe Ab Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg

Also Published As

Publication number Publication date
SE9402885L (sv) 1996-03-01
DE69528660D1 (de) 2002-11-28
ES2185715T3 (es) 2003-05-01
JPH10505639A (ja) 1998-06-02
EP0778909A1 (de) 1997-06-18
FI970821A7 (fi) 1997-02-27
PT778909E (pt) 2003-01-31
NO970907L (no) 1997-02-27
ATE226658T1 (de) 2002-11-15
WO1996006976A1 (en) 1996-03-07
US6540872B1 (en) 2003-04-01
CA2197771A1 (en) 1996-03-07
CN1157644A (zh) 1997-08-20
CN1065578C (zh) 2001-05-09
ZA957070B (en) 1996-04-15
EP0778909B1 (de) 2002-10-23
FI970821A0 (fi) 1997-02-27
BR9508653A (pt) 1997-11-11
AU687626B2 (en) 1998-02-26
NZ292288A (en) 1997-11-24
SE9402885D0 (sv) 1994-08-31
AU3401795A (en) 1996-03-22
NO970907D0 (no) 1997-02-27
DE69528660T2 (de) 2003-06-26
FI970821L (fi) 1997-02-27

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