BR9910866A - Method for the selective delignification of lignocellulosic materials - Google Patents
Method for the selective delignification of lignocellulosic materialsInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008106757A1 (en) * | 2007-03-02 | 2008-09-12 | Fundação Universidade De Caxias Do Sul - Ucs | 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 |
WO2012047832A2 (en) * | 2010-10-07 | 2012-04-12 | Shell Oil Company | Process for the production of alcohols from biomass |
WO2012088108A1 (en) | 2010-12-20 | 2012-06-28 | 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)
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 |
-
1999
- 1999-06-01 BR BR9910866-6A patent/BR9910866A/en not_active Application Discontinuation
- 1999-06-01 WO PCT/US1999/012099 patent/WO1999063149A1/en not_active Application Discontinuation
- 1999-06-01 EP EP99955305A patent/EP1092058A4/en not_active Withdrawn
- 1999-06-01 JP JP2000552337A patent/JP2002517621A/en not_active Withdrawn
- 1999-06-01 CA CA002332897A patent/CA2332897A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CA2332897A1 (en) | 1999-12-09 |
EP1092058A1 (en) | 2001-04-18 |
WO1999063149A8 (en) | 2000-04-27 |
WO1999063149A1 (en) | 1999-12-09 |
EP1092058A4 (en) | 2002-03-20 |
JP2002517621A (en) | 2002-06-18 |
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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 |