EP1979532A4 - PROCESS FOR TREATING A CELLULOSE-LIGNIN PULP - Google Patents

PROCESS FOR TREATING A CELLULOSE-LIGNIN PULP

Info

Publication number
EP1979532A4
EP1979532A4 EP06839344A EP06839344A EP1979532A4 EP 1979532 A4 EP1979532 A4 EP 1979532A4 EP 06839344 A EP06839344 A EP 06839344A EP 06839344 A EP06839344 A EP 06839344A EP 1979532 A4 EP1979532 A4 EP 1979532A4
Authority
EP
European Patent Office
Prior art keywords
treating
cellulose lignin
lignin pulp
pulp
cellulose
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.)
Withdrawn
Application number
EP06839344A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1979532A2 (en
Inventor
Dwane Scott Hutto
Haixuan Zou
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.)
University of Maine System
Original Assignee
University of Maine System
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 University of Maine System filed Critical University of Maine System
Publication of EP1979532A2 publication Critical patent/EP1979532A2/en
Publication of EP1979532A4 publication Critical patent/EP1979532A4/en
Withdrawn legal-status Critical Current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
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
EP06839344A 2005-12-14 2006-12-12 PROCESS FOR TREATING A CELLULOSE-LIGNIN PULP Withdrawn EP1979532A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/300,126 US20070131364A1 (en) 2005-12-14 2005-12-14 Process for treating a cellulose-lignin pulp
PCT/US2006/047416 WO2007070527A2 (en) 2005-12-14 2006-12-12 Process for treating a cellulose-lignin pulp

Publications (2)

Publication Number Publication Date
EP1979532A2 EP1979532A2 (en) 2008-10-15
EP1979532A4 true EP1979532A4 (en) 2011-09-28

Family

ID=38138100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06839344A Withdrawn EP1979532A4 (en) 2005-12-14 2006-12-12 PROCESS FOR TREATING A CELLULOSE-LIGNIN PULP

Country Status (10)

Country Link
US (1) US20070131364A1 (pt)
EP (1) EP1979532A4 (pt)
JP (1) JP2009520120A (pt)
CN (1) CN101426975B (pt)
AU (1) AU2006326561B8 (pt)
BR (1) BRPI0619948A2 (pt)
CA (1) CA2633540A1 (pt)
NO (1) NO20082756L (pt)
WO (1) WO2007070527A2 (pt)
ZA (1) ZA200804881B (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008033747A2 (en) * 2006-09-11 2008-03-20 Curis, Inc. Multi-functional small molecules as anti-proliferative agents
BR112014031092B1 (pt) 2012-06-13 2022-05-17 University Of Maine System Board Of Trustees Processo para formar nanofibras de celulose a partir de um material celulósico
CN106283794B (zh) * 2016-11-02 2017-11-21 江南大学 一种利用臭氧去除麻纤维木质素的方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119486A (en) * 1975-08-14 1978-10-10 Westvaco Corporation Process for bleaching wood pulp with ozone in the presence of a cationic surfactant
US4238282A (en) * 1979-07-23 1980-12-09 Nalco Chemical Company Chemical treatments in bleaching stages which increase pulp brightness
DE3544398A1 (de) * 1985-12-16 1987-06-19 Sueddeutsche Kalkstickstoff Verfahren zur bleiche und delignifizierung von zellstoffhaltigen produkten
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
EP0565625A1 (en) * 1991-01-03 1993-10-20 Union Camp Patent Holding, Inc. Chlorine-free process for bleaching lignocellulosic pulp
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
US5364503A (en) * 1992-02-20 1994-11-15 Macmillan Bloedel Limited Nitric oxide treatment for ozone bleaching
BE1006057A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour la delignification d'une pate a papier chimique.
WO1994010377A1 (en) * 1992-10-23 1994-05-11 Macmillan Bloedel Limited Improved ozone bleaching
US5364506A (en) * 1993-04-28 1994-11-15 The Board Of Trustees Of The Leland Stanford Junior University Method and apparatus for partial oxidation of methane and cogeneration of electrical energy
SE9301960L (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
SE502667C2 (sv) * 1993-07-12 1995-12-04 Kvaerner Pulping Tech Behandling av fibermaterial med komplexbildare före kokning
US5662803A (en) * 1996-04-09 1997-09-02 Nalco Chemical Company Stabilizers for additives in aqueous systems containing ozone
CA2189724A1 (en) * 1996-07-08 1998-01-09 Suezone Chow Method of pulping
PL332079A1 (en) * 1996-09-11 1999-08-30 Solvay Interox Sa Paper pulp bleaching method
DE69912128T2 (de) * 1998-04-17 2004-06-17 Alberta Research Council, Inc., Edmonton Verfahren zur herstellung lignocellulosehaltiger pulpe aus nicht holzartigem material
SE514947C2 (sv) * 1998-09-09 2001-05-21 Valmet Fibertech Ab Blekning av massa med ozon innefattande oxalsyratillsats
US6302997B1 (en) * 1999-08-30 2001-10-16 North Carolina State University Process for producing a pulp suitable for papermaking from nonwood fibrous materials
US7396974B2 (en) * 2002-02-08 2008-07-08 University Of Maine Oxidation using a non-enzymatic free radical system mediated by redox cycling chelators
DE10320618A1 (de) * 2003-05-08 2004-11-18 Papierfabrik Albbruck Gmbh & Co. Kg Verfahren zum Bleichen von Faserstoffen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
AU2006326561B8 (en) 2011-04-07
NO20082756L (no) 2008-08-11
CA2633540A1 (en) 2007-06-21
BRPI0619948A2 (pt) 2011-10-25
ZA200804881B (en) 2009-03-25
WO2007070527A2 (en) 2007-06-21
EP1979532A2 (en) 2008-10-15
AU2006326561B2 (en) 2011-03-17
JP2009520120A (ja) 2009-05-21
CN101426975A (zh) 2009-05-06
CN101426975B (zh) 2011-09-21
WO2007070527A3 (en) 2008-11-13
AU2006326561A1 (en) 2007-06-21
US20070131364A1 (en) 2007-06-14

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