BR9709108A - Processo para a deslignificação de material fibroso e uso de um catalisador - Google Patents
Processo para a deslignificação de material fibroso e uso de um catalisadorInfo
- Publication number
- BR9709108A BR9709108A BR9709108A BR9709108A BR9709108A BR 9709108 A BR9709108 A BR 9709108A BR 9709108 A BR9709108 A BR 9709108A BR 9709108 A BR9709108 A BR 9709108A BR 9709108 A BR9709108 A BR 9709108A
- Authority
- BR
- Brazil
- Prior art keywords
- delignifying
- catalyst
- fibrous material
- fibrous
- delignifying fibrous
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
- B01J31/1805—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing nitrogen
- B01J31/181—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
- B01J31/1815—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine with more than one complexing nitrogen atom, e.g. bipyridyl, 2-aminopyridine
- B01J31/182—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine with more than one complexing nitrogen atom, e.g. bipyridyl, 2-aminopyridine comprising aliphatic or saturated rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
- B01J31/2226—Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
- B01J31/223—At least two oxygen atoms present in one at least bidentate or bridging ligand
- B01J31/2239—Bridging ligands, e.g. OAc in Cr2(OAc)4, Pt4(OAc)8 or dicarboxylate ligands
-
- 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
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0213—Complexes without C-metal linkages
- B01J2531/0216—Bi- or polynuclear complexes, i.e. comprising two or more metal coordination centres, without metal-metal bonds, e.g. Cp(Lx)Zr-imidazole-Zr(Lx)Cp
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0238—Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bonds from the central metal to the ligand, the latter having at least two donor atoms, e.g. N, O, S, P
- B01J2531/0258—Flexible ligands, e.g. mainly sp3-carbon framework as exemplified by the "tedicyp" ligand, i.e. cis-cis-cis-1,2,3,4-tetrakis(diphenylphosphinomethyl)cyclopentane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/70—Complexes comprising metals of Group VII (VIIB) as the central metal
- B01J2531/72—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/842—Iron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19620241A DE19620241A1 (de) | 1996-05-20 | 1996-05-20 | Verfahren zum Delignifizieren von Zellstoffen und Verwendung eines Katalysators |
PCT/EP1997/002557 WO1997044520A1 (en) | 1996-05-20 | 1997-05-20 | A method for the delignification of fibrous material and use of a catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9709108A true BR9709108A (pt) | 1999-08-03 |
Family
ID=7794779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9709108A BR9709108A (pt) | 1996-05-20 | 1997-05-20 | Processo para a deslignificação de material fibroso e uso de um catalisador |
Country Status (8)
Country | Link |
---|---|
US (1) | US20010025695A1 (pt) |
EP (1) | EP0900300A1 (pt) |
JP (1) | JP2000510914A (pt) |
CN (1) | CN1225698A (pt) |
BR (1) | BR9709108A (pt) |
CA (1) | CA2255588A1 (pt) |
DE (1) | DE19620241A1 (pt) |
WO (1) | WO1997044520A1 (pt) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9930422D0 (en) | 1999-12-22 | 2000-02-16 | Unilever Plc | Bleach catalysts |
DK1392914T3 (da) * | 2001-06-06 | 2011-03-28 | Dequest Ag | Fremgangsmåde og vandig sammensætning til fremstilling af forbedret pulp |
AU2003209591A1 (en) * | 2002-02-22 | 2003-09-09 | Gilles Gervais | Process of treating lignocellulosic material to produce bio-ethanol |
US20060070711A1 (en) * | 2004-09-30 | 2006-04-06 | Mengkui Luo | Low pH treatment of pulp in a bleach sequence to produce pulp having low D.P. and low copper number for use in lyocell manufacture |
US20060065377A1 (en) * | 2004-09-30 | 2006-03-30 | Mengkui Luo | High PH treatment of pulp in a bleach sequence to produce pulp having low D.P. and low copper number for use in lyocell manufacture |
BR122016028772B1 (pt) * | 2005-05-27 | 2019-11-12 | Unilever Nv | sal catalisador de metal de transição pré-formado |
US7972386B2 (en) * | 2005-10-12 | 2011-07-05 | Conopco, Inc. | Bleaching of substrates |
CN101589191B (zh) * | 2007-01-16 | 2012-11-14 | 荷兰联合利华有限公司 | 底物的漂白 |
EP2149569A1 (en) * | 2008-08-01 | 2010-02-03 | Hexion Specialty Chemicals Research Belgium S.A. | Process for the manufacture of a 1,2-Epoxide |
EP2149570A1 (en) * | 2008-08-01 | 2010-02-03 | Hexion Specialty Chemicals Research Belgium S.A. | Process for the manufacture of epichlorohydrin using hydrogen peroxide and a manganese komplex |
WO2010138941A2 (en) * | 2009-05-28 | 2010-12-02 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
US9512237B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Method for inhibiting the growth of microbes with a modified cellulose fiber |
US9511167B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
US9512563B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Surface treated modified cellulose from chemical kraft fiber and methods of making and using same |
PL2477740T3 (pl) | 2009-09-18 | 2015-06-30 | Weylchem Lamotte | Sposób wytwarzania mostkowych manganowych kompleksów triazacyklononanu |
FR2951096B1 (fr) * | 2009-10-09 | 2013-03-15 | Total Sa | Procede d'oxydation de composes organiques |
EP2343288A1 (en) | 2009-11-27 | 2011-07-13 | Momentive Specialty Chemicals Research Belgium S.A. | Process for the manufacture of propylene oxide |
DE102009057220A1 (de) | 2009-12-05 | 2011-06-09 | Clariant International Ltd. | Nicht hygroskopische Übergangsmetallkomplexe, Verfahren zu ihrer Herstellung und ihre Verwendung |
DE102009057222A1 (de) | 2009-12-05 | 2011-06-09 | Clariant International Ltd. | Bleichkatalysator-Compounds, Verfahren zu ihrer Herstellung und ihre Verwendung |
EP2354130A1 (en) | 2010-02-02 | 2011-08-10 | Momentive Specialty Chemicals Research Belgium | Manufacture of an epoxyethyl carboxylate or glycidyl carboxylate |
EP2354129A1 (en) | 2010-02-02 | 2011-08-10 | Momentive Specialty Chemicals Research Belgium S.A. | Epoxidation process |
EP2357180A1 (en) | 2010-02-02 | 2011-08-17 | Momentive Specialty Chemicals Research Belgium S.A. | Manufacture of epoxyethyl ethers or glycidyl ethers |
EP2354131A1 (en) | 2010-02-02 | 2011-08-10 | Momentive Specialty Chemicals Research Belgium | Process for the manufacture of a 1,2-epoxide and a device for carrying out said process |
KR101735087B1 (ko) | 2010-03-03 | 2017-05-24 | 카텍셀 리미티드 | 표백 촉매 제조방법 |
EP2377614A1 (en) * | 2010-04-16 | 2011-10-19 | Unilever Plc, A Company Registered In England And Wales under company no. 41424 of Unilever House | Bleaching of substrates |
EP2395147A1 (en) | 2010-05-10 | 2011-12-14 | Unilever Plc, A Company Registered In England And Wales under company no. 41424 of Unilever House | Freeness of paper products |
PL2714987T3 (pl) | 2011-05-23 | 2015-12-31 | Gp Cellulose Gmbh | Wykonane z drewna drzew iglastych włókno typu kraft o lepszej białości i jasności oraz sposoby jego wytwarzania i wykorzystywania |
EP2537836A1 (en) | 2011-06-22 | 2012-12-26 | Momentive Specialty Chemicals Research Belgium S.A. | Apparatus and methods to preserve catalyst activity in an epoxidation process |
CA2847692C (en) | 2011-09-08 | 2018-08-21 | Omg Additives Limited | Catalysts |
CN104302831A (zh) | 2012-01-12 | 2015-01-21 | Gp纤维素股份有限公司 | 具有降低的黄变特性的低粘性牛皮纸纤维及其制造和使用方法 |
US8871051B2 (en) | 2012-03-21 | 2014-10-28 | Los Alamos National Security, Llc | Process for decomposing lignin in biomass |
RU2017128939A (ru) | 2012-04-18 | 2019-02-04 | ДжиПи СЕЛЛЬЮЛОУС ГМБХ | Использование поверхностно-активного вещества для обработки пульпы и улучшение введения крафт-пульпы в волокно для получения вискозы и других вторичных волокнистых продуктов |
AU2014213691B2 (en) | 2013-02-08 | 2017-03-16 | Gp Cellulose Gmbh | Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products |
BR112015019882A2 (pt) | 2013-03-14 | 2017-07-18 | Gp Cellulose Gmbh | fibra kraft clareada oxidada e métodos para fazer polpa kraft e fibra kraft de madeira macia e para clarear polpa kraft de celulose em sequência de branqueamento de multi-estágios |
US9951470B2 (en) | 2013-03-15 | 2018-04-24 | Gp Cellulose Gmbh | Low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same |
BR112016003054B1 (pt) | 2013-08-16 | 2022-02-15 | Chemsenti Limited | Formulação de branqueamento, partícula, método e uso de uma partícula |
US9371228B2 (en) * | 2013-09-12 | 2016-06-21 | Air Products And Chemicals, Inc. | Integrated process for production of ozone and oxygen |
CA2929443A1 (en) | 2013-11-06 | 2015-05-14 | Evonik Industries Ag | Method for delignifying and bleaching pulp |
AR104939A1 (es) | 2015-06-10 | 2017-08-23 | Chemsenti Ltd | Método oxidativo para generar dióxido de cloro |
AR104940A1 (es) | 2015-06-10 | 2017-08-23 | Chemsenti Ltd | Método para generar dióxido de cloro |
EP3541849B1 (en) | 2016-11-16 | 2023-11-15 | GP Cellulose GmbH | Modified cellulose from chemical fiber and methods of making and using the same |
US20220332673A1 (en) * | 2019-06-26 | 2022-10-20 | University Of Florida Research Foundation, Inc. | Catalytic depolymerization of lignin to high value hydrocarbons |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0458398B1 (en) * | 1990-05-21 | 1997-03-26 | Unilever N.V. | Bleach activation |
EP0544490A1 (en) * | 1991-11-26 | 1993-06-02 | Unilever Plc | Detergent bleach compositions |
FR2692499B1 (fr) * | 1992-06-22 | 1994-08-26 | Atochem Elf Sa | Procédé de délignification et de blanchiment d'une matière lignocellulosique. |
DE4416438A1 (de) * | 1994-05-10 | 1995-11-16 | Basf Ag | Ein- oder mehrkernige Metall-Komplexe und ihre Verwendung als Bleich- und Oxidationskatalysatoren |
ES2135068T3 (es) * | 1994-06-13 | 1999-10-16 | Unilever Nv | Activacion de blanqueantes. |
ES2221665T3 (es) * | 1994-07-21 | 2005-01-01 | Ciba Specialty Chemicals Holding Inc. | Composicion de blanqueo de tejidos. |
DE19530787A1 (de) * | 1995-08-22 | 1997-02-27 | Hoechst Ag | Mangan enthaltende Polyoxometallate, Synthese und Verwendung |
-
1996
- 1996-05-20 DE DE19620241A patent/DE19620241A1/de not_active Withdrawn
-
1997
- 1997-05-20 JP JP09541528A patent/JP2000510914A/ja active Pending
- 1997-05-20 BR BR9709108A patent/BR9709108A/pt not_active Application Discontinuation
- 1997-05-20 EP EP97923942A patent/EP0900300A1/en not_active Withdrawn
- 1997-05-20 CA CA002255588A patent/CA2255588A1/en not_active Abandoned
- 1997-05-20 US US09/194,385 patent/US20010025695A1/en not_active Abandoned
- 1997-05-20 CN CN97196582.XA patent/CN1225698A/zh active Pending
- 1997-05-20 WO PCT/EP1997/002557 patent/WO1997044520A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US20010025695A1 (en) | 2001-10-04 |
JP2000510914A (ja) | 2000-08-22 |
CN1225698A (zh) | 1999-08-11 |
WO1997044520A1 (en) | 1997-11-27 |
CA2255588A1 (en) | 1997-11-27 |
DE19620241A1 (de) | 1997-11-27 |
EP0900300A1 (en) | 1999-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA10 | Dismissal: dismissal - article 33 of industrial property law | ||
B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |