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BR9910866A - Method for the selective delignification of lignocellulosic materials - Google Patents

Method for the selective delignification of lignocellulosic materials

Info

Publication number
BR9910866A
BR9910866A BR9910866-6A BR9910866A BR9910866A BR 9910866 A BR9910866 A BR 9910866A BR 9910866 A BR9910866 A BR 9910866A BR 9910866 A BR9910866 A BR 9910866A
Authority
BR
Brazil
Prior art keywords
lignocellulosic materials
delignification
selective
materials
selective delignification
Prior art date
Application number
BR9910866-6A
Other languages
Portuguese (pt)
Inventor
Edward L Springer
Rajai H Atalla
Ira A Weinstock
Original Assignee
Us Health
Univ Emory
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 Us Health, Univ Emory filed Critical Us Health
Publication of BR9910866A publication Critical patent/BR9910866A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/006—Pulping cellulose-containing materials with compounds not otherwise provided for
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • 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
    • D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compounds Of Unknown Constitution (AREA)

Abstract

"MéTODO PARA A DESLIGNIFICAçãO SELETIVA DEMATERIAIS LIGNOCELULóSICOS". Descreve-se um métodopara a deslignificação de materiais lignocelulósicos, primeiramente,por tratamento do material com uma solução alcalina, na presençaou ausência de antraquinona, e depois exposição do material a umpolioxometalato. A inclusão da etapa de pré-tratamento alcalinapropicia a ocorrência de deslignificação a uma alta eficiência eproduz altos rendimentos de resíduo e viscosidades."METHOD FOR SELECTIVE DESIGNIFICATION OF LIGNOCELLULOSIS MATERIALS". A method for delignifying lignocellulosic materials is described, firstly, by treating the material with an alkaline solution, in the presence or absence of anthraquinone, and then exposing the material to a polyoxometalate. The inclusion of the alkaline pretreatment step provides delignification at high efficiency and produces high residue and viscosity yields.

BR9910866-6A 1998-06-02 1999-06-01 Method for the selective delignification of lignocellulosic materials BR9910866A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8765898P 1998-06-02 1998-06-02
US32095699A 1999-05-27 1999-05-27
PCT/US1999/012099 WO1999063149A1 (en) 1998-06-02 1999-06-01 Method for selectively delignifying lignocellulosic materials

Publications (1)

Publication Number Publication Date
BR9910866A true BR9910866A (en) 2001-10-30

Family

ID=26777247

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9910866-6A BR9910866A (en) 1998-06-02 1999-06-01 Method for the selective delignification of lignocellulosic materials

Country Status (5)

Country Link
EP (1) EP1092058A4 (en)
JP (1) JP2002517621A (en)
BR (1) BR9910866A (en)
CA (1) CA2332897A1 (en)
WO (1) WO1999063149A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110033897A1 (en) * 2007-03-02 2011-02-10 Pinheiro Dillon Aldo Jose Method for the Obtainment of Hydrolytic Enzymes, Hydrolytic Method for Producing Fermentable Sugars, Additives comprising Fermentable Sugars, and Process for Producing Ethanol from Sugar Cane Bagasse
US8889384B2 (en) 2010-10-07 2014-11-18 Shell Oil Company Process for the production of alcohols from biomass
US8609379B2 (en) 2010-12-20 2013-12-17 Shell Oil Company Process for the production of alcohols from biomass
FR2969668B1 (en) * 2010-12-23 2013-01-04 Arkema France METHOD FOR DELIGNIFYING AND WHITENING PAPER PULP USING ACTIVE HYDROGEN PEROXIDE
GB2500031B (en) * 2012-03-07 2015-04-01 Acal Energy Ltd Fuel cells

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1073161A (en) * 1975-09-05 1980-03-11 Canadian Industries Limited Delignification process
CA1094264A (en) * 1976-12-14 1981-01-27 Canadian Industries Limited Delignification of lignocellulosic material with a soda liquor containing a cyclic keto compound and a nitro aromatic compound
US4310383A (en) * 1979-11-23 1982-01-12 Crown Zellerbach Corporation Continuous countercurrent pretreatment of lignocellulose with anthraquinone prior to pulping
US5549789A (en) * 1992-08-28 1996-08-27 The United States Of America As Represented By The Secretary Of Agriculture Oxidation of lignin and polysaccharides mediated by polyoxometalate treatment of wood pulp
US5302248A (en) * 1992-08-28 1994-04-12 The United States Of America As Represented By The Secretary Of Agriculture Delignification of wood pulp by vanadium-substituted polyoxometalates
DE4343508C2 (en) * 1993-12-20 1997-08-07 Eugen Edel Chemo-thermo-mechanical process for the production of cellulose from plant fiber material

Also Published As

Publication number Publication date
EP1092058A4 (en) 2002-03-20
JP2002517621A (en) 2002-06-18
EP1092058A1 (en) 2001-04-18
WO1999063149A8 (en) 2000-04-27
CA2332897A1 (en) 1999-12-09
WO1999063149A1 (en) 1999-12-09

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired