DE69004492T2 - Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen. - Google Patents

Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.

Info

Publication number
DE69004492T2
DE69004492T2 DE90850200T DE69004492T DE69004492T2 DE 69004492 T2 DE69004492 T2 DE 69004492T2 DE 90850200 T DE90850200 T DE 90850200T DE 69004492 T DE69004492 T DE 69004492T DE 69004492 T2 DE69004492 T2 DE 69004492T2
Authority
DE
Germany
Prior art keywords
pulp
treatment
peroxide
range
bleaching
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.)
Expired - Fee Related
Application number
DE90850200T
Other languages
English (en)
Other versions
DE69004492D1 (de
DE69004492T3 (de
Inventor
Per G Lundgren
Lillemor K Holtinger
Jiri J Basta
Marie R Samuelsson
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.)
Nouryon Pulp and Performance Chemicals AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26660528&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69004492(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from SE8902058A external-priority patent/SE467006B/sv
Priority claimed from SE9001448A external-priority patent/SE9001448D0/xx
Application filed by Eka Nobel AB filed Critical Eka Nobel AB
Publication of DE69004492D1 publication Critical patent/DE69004492D1/de
Publication of DE69004492T2 publication Critical patent/DE69004492T2/de
Application granted granted Critical
Publication of DE69004492T3 publication Critical patent/DE69004492T3/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • D21C9/1057—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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
DE69004492T 1989-06-06 1990-05-21 Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen. Expired - Fee Related DE69004492T3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8902058A SE467006B (sv) 1989-06-06 1989-06-06 Blekning av kemisk massa med peroxid varvid massan foerst behandlas med en komplexbildare
SE9001448A SE9001448D0 (sv) 1990-04-23 1990-04-23 Foerfarande foer blekning av lignocellulosahaltigt material

Publications (3)

Publication Number Publication Date
DE69004492D1 DE69004492D1 (de) 1993-12-16
DE69004492T2 true DE69004492T2 (de) 1994-03-24
DE69004492T3 DE69004492T3 (de) 2001-11-15

Family

ID=26660528

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69004492T Expired - Fee Related DE69004492T3 (de) 1989-06-06 1990-05-21 Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
DE199090850200T Pending DE402335T1 (de) 1989-06-06 1990-05-21 Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE199090850200T Pending DE402335T1 (de) 1989-06-06 1990-05-21 Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.

Country Status (15)

Country Link
US (1) US5310458A (de)
EP (1) EP0402335B2 (de)
JP (1) JP2843892B2 (de)
AT (1) ATE97179T1 (de)
AU (1) AU613272B2 (de)
BR (1) BR9002660A (de)
CA (1) CA2017807C (de)
DE (2) DE69004492T3 (de)
DK (1) DK0402335T4 (de)
ES (1) ES2038097T5 (de)
FI (1) FI107546B (de)
LV (1) LV10517B (de)
NO (1) NO174354C (de)
NZ (1) NZ233884A (de)
PT (1) PT94287B (de)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409570A (en) 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
FI89516B (fi) 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
BE1004674A3 (fr) * 1991-03-11 1993-01-12 Interox Internat Sa Procede pour le blanchiment d'une pate a papier chimique et application de ce procede au blanchiment d'une pate kraft.
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
US6398908B1 (en) 1991-04-30 2002-06-04 Eka Nobel Ab Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
SE469842C (sv) * 1992-01-21 1995-09-22 Sunds Defibrator Ind Ab Blekning av kemisk massa med peroxid
SE469387B (sv) * 1992-05-11 1993-06-28 Kamyr Ab Saett vid blekning av massa utan anvaendning av klorkemikalier
BE1006057A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour la delignification d'une pate a papier chimique.
BE1006056A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
SE500113C2 (sv) * 1992-07-09 1994-04-18 Kamyr Ab Sätt vid blekning av massa för omhändertagande av utlösta metaller
JPH06116889A (ja) * 1992-09-30 1994-04-26 New Oji Paper Co Ltd 木材化学パルプの漂白法
SE9203366L (sv) * 1992-11-11 1994-05-12 Mo Och Domsjoe Ab Förfarande vid delignifiering och/eller blekning av cellulosamassa
PL309191A1 (en) * 1992-11-27 1995-09-18 Eka Nobel Ab Method delignifying a lignocellulose containing pulp
AU671337B2 (en) * 1992-11-27 1996-08-22 Eka Nobel Ab Process for bleaching of lignocellulose-containing 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
SE501325E (sv) * 1993-01-29 1999-06-09 Kvaerner Pulping Tech Förfarande för klorfri blekning av massa, varvid massan surgöres med ättiksyra vid behandlingen med komplexbildare
US6010594A (en) * 1993-03-03 2000-01-04 Ahlstrom Machinery Corporation Method of bleaching pulp with chlorine-free chemicals wherein a complexing agent is added immediately after an ozone bleach stage
FI93232C (fi) * 1993-03-03 1995-03-10 Ahlstroem Oy Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
DE69420306T2 (de) * 1993-04-20 2000-04-20 Eka Chemicals Ab Bohus Verfahren zum Bleichen von Lignozellulose-enthaltendem Zellstoff
US6149766A (en) * 1993-06-08 2000-11-21 Kvaerner Pulping Technologies, A/B Process for peroxide bleaching of chemical pulp in a pressurized bleaching vessel
SE501253E8 (sv) * 1993-06-08 1994-12-19 Klorfri blekning av kemisk pappersmassa
SE9301960L (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
SE501613C2 (sv) * 1993-08-03 1995-03-27 Kvaerner Pulping Tech Sätt vid integrering av blekning och återvinning vid framställning av massa
EP0717800A4 (de) * 1993-09-03 1998-10-28 Union Camp Patent Holding Mittleres konsistenz-ozonbleichen von hochkonsistenz-ozongebleichtem zellstoff
US6605181B1 (en) 1993-10-01 2003-08-12 Kvaerner Pulping Aktiebolag Peroxide bleach sequence including an acidic bleach stage and including a wash stage
US5554259A (en) 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
CA2175062C (en) * 1993-10-26 2004-07-20 Eltjo Boelema Aminoalkane diphosphonic acids in pulp bleaching
BE1007700A3 (fr) * 1993-11-04 1995-10-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
SE501985C2 (sv) * 1993-11-05 1995-07-03 Sunds Defibrator Ind Ab Förfarande för avskiljning av metalljoner från massa i samband med blekning av massan
BE1007757A3 (fr) * 1993-11-10 1995-10-17 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
SE502172C2 (sv) * 1993-12-15 1995-09-04 Mo Och Domsjoe Ab Förfarande för framställning av blekt cellulosamassa med en klorfri bleksekvens i närvaro av karbonat
SE502706E (sv) * 1994-04-05 1999-06-18 Mo Och Domsjoe Ab Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg
FR2719854B1 (fr) * 1994-05-11 1996-06-21 Atochem Elf Sa Procédé de préparation de pâtes à papier chimiques délignifiées et blanchies.
FI98841C (fi) * 1994-06-20 1997-08-25 Kemira Chemicals Oy Menetelmä kemiallisen massan delignifioimiseksi
SE514697C2 (sv) * 1994-08-31 2001-04-02 Valmet Fibertech Ab Eliminering av metalljoner vid blekning av massa
SE504826C2 (sv) * 1994-10-07 1997-05-12 Sunds Defibrator Ind Ab Behandling av kemisk massa med komplexbildare i närvaro av ett oxidationsmedel
US5620563A (en) * 1994-10-31 1997-04-15 Pulp Paper Res Inst Process for delignification and bleaching of chemical wood pulps with hydrogen peroxide and a dicyandiamide activator
SE504424C2 (sv) * 1994-11-04 1997-02-10 Kvaerner Pulping Tech Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta alkalisk vätska
SE504803C2 (sv) * 1995-08-24 1997-04-28 Sunds Defibrator Ind Ab Behandling av massa med komplexbildare i minst två blandningssteg utan mellanliggande tvätt
US5728264A (en) * 1995-10-25 1998-03-17 Union Camp Patent Holding, Inc. Avoidance of salt scaling by acidic pulp washing process
CA2310278A1 (en) * 1997-11-25 1999-06-03 Amylum Belgium N.V. Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions
AUPP476398A0 (en) * 1998-07-21 1998-08-13 Orica Australia Pty Ltd Bleaching process
US6669822B1 (en) 1998-10-28 2003-12-30 Ebara Corporation Method for carbonizing wastes
CA2379691A1 (en) * 2000-01-28 2001-08-02 Burton Branch Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp
US7052578B2 (en) * 2000-01-28 2006-05-30 Martin Marietta Magnesia Specialties, Inc. Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp
US7001484B2 (en) 2000-05-04 2006-02-21 University Of New Brunswick Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent
EP1375734A1 (de) * 2002-06-17 2004-01-02 SCA Hygiene Products GmbH Gebleichter, chemischer Sulfitzellstoff mit guter Festigkeit, Verfahren zu seiner Herstellung und daraus hergestellte Produkte
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
KR20200074097A (ko) * 2017-10-03 2020-06-24 다우 글로벌 테크놀로지스 엘엘씨 저점도 셀룰로오스 에테르의 단순화된 제조 방법
FI128968B (en) * 2020-03-31 2021-04-15 Chempolis Oy Peroxide bleaching of cellulose pulp

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA575636A (en) * 1959-05-12 E. Smedberg George Bleaching of wood pulps
US3251731A (en) * 1963-02-11 1966-05-17 Andrew J Gard Bleaching of wood pulp with a sequestering agent and hydrogen peroxide
FI45574C (fi) * 1970-05-11 1972-07-10 Kymin Oy Kymmene Ab Menetelmä selluloosapitoisten aineiden valkaisemiseksi.
DE2219504C2 (de) * 1972-04-21 1974-10-03 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
DE2538673C2 (de) * 1975-08-30 1986-01-16 Degussa Ag, 6000 Frankfurt Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz
SE407091B (sv) * 1976-02-05 1979-03-12 Sca Development Ab Sett att peroxidbleka genom raffinering framstelld cellulosamassa
SE420430B (sv) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel
US4259149A (en) * 1978-05-03 1981-03-31 Hooker Chemicals & Plastics Corp. Method of reducing waste stream pollutants by the control and separation of waste contaminants from a multi-stage cellulosic bleaching sequence
SE414411B (sv) * 1978-10-25 1980-07-28 Eka Ab Sett att rena utslepp fran blekerier med ultrafiltrering
US4259150A (en) * 1978-12-18 1981-03-31 Kamyr Inc. Plural stage mixing and thickening oxygen bleaching process
FR2457339A1 (fr) * 1979-05-25 1980-12-19 Interox Procede pour la delignification et le blanchiment de pates cellulosiques chimiques et semi-chimiques
SU903429A1 (ru) * 1980-06-05 1982-02-07 Центральный научно-исследовательский институт бумаги Способ отбелки древесной массы
JPS5721591A (en) † 1980-07-11 1982-02-04 Mitsubishi Gas Chemical Co Peroxide bleaching of wood pulp
JPS57112488A (en) * 1980-12-27 1982-07-13 Mitsubishi Gas Chemical Co Peroxide bleaching of pulp
FR2520397A1 (fr) * 1982-01-28 1983-07-29 Centre Tech Ind Papier Procede pour le traitement de pates papetieres chimiques
FR2582692B1 (fr) * 1985-05-29 1987-12-11 Atochem Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment
US4826568A (en) * 1985-08-05 1989-05-02 Interox (Societe Anonyme) Process for delignification of cellulosic substances by pretreating with a complexing agent followed by peroxide prior to kraft digestion
DE3620980A1 (de) * 1986-06-23 1988-01-14 Schott Glaswerke Kontinuierliches mehrstufen-verfahren zur aufbereitung der bleicherei-abwaesser aus der zellstoffproduktion
US4732650A (en) * 1986-09-15 1988-03-22 The Dow Chemical Company Bleaching of cellulosic pulps using hydrogen peroxide
US4675076A (en) * 1986-10-01 1987-06-23 Ppg Industries, Inc. Method for brightening pulp
FR2613388B1 (fr) * 1987-04-02 1990-05-04 Atochem Procede de blanchiment de pates
US4874521A (en) * 1988-10-18 1989-10-17 Boise Cascade Corporation Pulp mill effluent color removal process
US4946556A (en) * 1989-04-25 1990-08-07 Kamyr, Inc. Method of oxygen delignifying wood pulp with between stage washing

Also Published As

Publication number Publication date
DE69004492D1 (de) 1993-12-16
PT94287B (pt) 1996-12-31
CA2017807C (en) 1995-12-19
EP0402335B2 (de) 2001-03-14
LV10517A (lv) 1995-02-20
ES2038097T1 (es) 1993-07-16
US5310458A (en) 1994-05-10
NO174354B (no) 1994-01-10
JP2843892B2 (ja) 1999-01-06
NO174354C (no) 1994-04-20
LV10517B (en) 1995-04-20
DK0402335T4 (da) 2001-06-25
NZ233884A (en) 1992-01-29
AU613272B2 (en) 1991-07-25
EP0402335A2 (de) 1990-12-12
FI107546B (fi) 2001-08-31
DE402335T1 (de) 1992-04-09
ATE97179T1 (de) 1993-11-15
EP0402335A3 (de) 1991-10-23
FI902773A0 (fi) 1990-06-04
PT94287A (pt) 1991-02-08
NO902479L (no) 1990-12-07
NO902479D0 (no) 1990-06-05
EP0402335B1 (de) 1993-11-10
ES2038097T5 (es) 2001-05-01
DE69004492T3 (de) 2001-11-15
CA2017807A1 (en) 1990-12-06
BR9002660A (pt) 1991-08-20
AU5621790A (en) 1991-02-07
ES2038097T3 (es) 1994-02-01
DK0402335T3 (da) 1994-01-17
JPH0327191A (ja) 1991-02-05

Similar Documents

Publication Publication Date Title
DE69004492T3 (de) Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
DE69100060D1 (de) Verfahren zum bleichen von lignocellulose enthaltendem material.
DE69420306D1 (de) Verfahren zum Bleichen von Lignozellulose-enthaltendem Zellstoff
ATE141972T1 (de) Verfahren zum bleichen von lignocellulose- enthaltendem zellstoff
DE69325070D1 (de) Verfahren zum Bleichen von chemisch aufgelösten Lignocellulose enthaltenden Zellstoffen
SE8902058L (sv) Foerfarande vid blekning av lignocellulosa- haltigt material

Legal Events

Date Code Title Description
8363 Opposition against the patent
8328 Change in the person/name/address of the agent

Free format text: VOSSIUS & PARTNER, 81675 MUENCHEN

8366 Restricted maintained after opposition proceedings
8332 No legal effect for de
8339 Ceased/non-payment of the annual fee