BR9709108A - Process for delignifying fibrous material and using a catalyst - Google Patents

Process for delignifying fibrous material and using a catalyst

Info

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
Application number
BR9709108A
Other languages
Portuguese (pt)
Inventor
Hans-Juergen Mielisch
Juergen Odermatt
K Wieghardt
Thomas Weyermueller
Original Assignee
Rudolf Patt
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 Rudolf Patt filed Critical Rudolf Patt
Publication of BR9709108A publication Critical patent/BR9709108A/en

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)
BR9709108A 1996-05-20 1997-05-20 Process for delignifying fibrous material and using a catalyst BR9709108A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19620241A DE19620241A1 (en) 1996-05-20 1996-05-20 Process for delignifying pulps and using a catalyst
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 (en) 1999-08-03

Family

ID=7794779

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9709108A BR9709108A (en) 1996-05-20 1997-05-20 Process for delignifying fibrous material and using a catalyst

Country Status (8)

Country Link
US (1) US20010025695A1 (en)
EP (1) EP0900300A1 (en)
JP (1) JP2000510914A (en)
CN (1) CN1225698A (en)
BR (1) BR9709108A (en)
CA (1) CA2255588A1 (en)
DE (1) DE19620241A1 (en)
WO (1) WO1997044520A1 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9930422D0 (en) * 1999-12-22 2000-02-16 Unilever Plc Bleach catalysts
US6890404B2 (en) * 2001-06-06 2005-05-10 Solutia, Inc. Composition for the production of improved pulp
US7189306B2 (en) * 2002-02-22 2007-03-13 Gervais Gibson W Process of treating lignocellulosic material to produce bio-ethanol
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
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
EP2402087B1 (en) * 2005-05-27 2013-04-17 Catexel Limited Performed transition metal catalyst salts
WO2007042192A2 (en) * 2005-10-12 2007-04-19 Unilever Plc Bleaching of substrates
ZA200903684B (en) * 2007-01-16 2010-08-25 Unilever Plc Bleaching of substrates
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
EP2149569A1 (en) * 2008-08-01 2010-02-03 Hexion Specialty Chemicals Research Belgium S.A. Process for the manufacture of a 1,2-Epoxide
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
EP2435629B1 (en) 2009-05-28 2019-10-16 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
CN102510774B (en) 2009-09-18 2014-07-23 科莱恩金融(Bvi)有限公司 Method for producing bridged manganese complexes of triazacyclononane
FR2951096B1 (en) * 2009-10-09 2013-03-15 Total Sa PROCESS FOR OXIDATION OF ORGANIC COMPOUNDS
EP2343288A1 (en) 2009-11-27 2011-07-13 Momentive Specialty Chemicals Research Belgium S.A. Process for the manufacture of propylene oxide
DE102009057222A1 (en) 2009-12-05 2011-06-09 Clariant International Ltd. Bleach catalyst compounds, process for their preparation and their use
DE102009057220A1 (en) 2009-12-05 2011-06-09 Clariant International Ltd. Non-hygroscopic transition metal complexes, process for their preparation and their use
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
EP2354130A1 (en) 2010-02-02 2011-08-10 Momentive Specialty Chemicals Research Belgium Manufacture of an epoxyethyl carboxylate or glycidyl carboxylate
KR101735087B1 (en) 2010-03-03 2017-05-24 카텍셀 리미티드 Preparation of bleaching catalysts
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
AU2012268700B2 (en) 2011-05-23 2017-02-02 Gp Cellulose Gmbh Softwood kraft fiber having improved whiteness and brightness and methods of making and using the same
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
ES2683005T3 (en) 2011-09-08 2018-09-24 Catexel Technologies Limited Catalysts
ES2844150T3 (en) 2012-01-12 2021-07-21 Gp Cellulose Gmbh A low viscosity sulfate fiber that has reduced yellowing properties and methods of making and using the same
US8871051B2 (en) 2012-03-21 2014-10-28 Los Alamos National Security, Llc Process for decomposing lignin in biomass
EP3495550A1 (en) 2012-04-18 2019-06-12 GP Cellulose GmbH The use of surfactant to treat pulp and improve the incorporation of kraft pulp into fiber for the production of viscose and other secondary fiber products
CN105008616B (en) 2013-02-08 2020-03-03 Gp 纤维素股份有限公司 Softwood kraft fibers having improved α -cellulose content and their use in the manufacture of chemical cellulose products
RU2671653C2 (en) 2013-03-14 2018-11-06 ДжиПи СЕЛЛЬЮЛОУС ГМБХ Method for manufacturing high functional low-viscosity kraft fibers with use of acid bleaching sequence and fiber produced therewith
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 (en) 2013-08-16 2022-02-15 Chemsenti Limited BLEACHING FORMULATION, PARTICLE, METHOD AND USE OF A PARTICLE
US9371228B2 (en) * 2013-09-12 2016-06-21 Air Products And Chemicals, Inc. Integrated process for production of ozone and oxygen
US10006169B2 (en) 2013-11-06 2018-06-26 Evonik Degussa Gmbh Method for delignifying and bleaching pulp
AR104939A1 (en) 2015-06-10 2017-08-23 Chemsenti Ltd OXIDATIVE METHOD TO GENERATE CHLORINE DIOXIDE
AR104940A1 (en) 2015-06-10 2017-08-23 Chemsenti Ltd METHOD FOR GENERATING CHLORINE DIOXIDE
US10865519B2 (en) 2016-11-16 2020-12-15 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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458397B1 (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 (en) * 1992-06-22 1994-08-26 Atochem Elf Sa Process for delignification and bleaching of a lignocellulosic material.
DE4416438A1 (en) * 1994-05-10 1995-11-16 Basf Ag Mononuclear or multinuclear metal complexes and their use as bleaching and oxidation catalysts
AU2614895A (en) * 1994-06-13 1996-01-05 Unilever N.V. Bleach activation
DE69533149T2 (en) * 1994-07-21 2005-08-25 Ciba Specialty Chemicals Holding Inc. Bleaching composition for tissue
DE19530787A1 (en) * 1995-08-22 1997-02-27 Hoechst Ag Manganese-containing polyoxometalates, synthesis and use

Also Published As

Publication number Publication date
CN1225698A (en) 1999-08-11
EP0900300A1 (en) 1999-03-10
CA2255588A1 (en) 1997-11-27
JP2000510914A (en) 2000-08-22
US20010025695A1 (en) 2001-10-04
WO1997044520A1 (en) 1997-11-27
DE19620241A1 (en) 1997-11-27

Similar Documents

Publication Publication Date Title
BR9709108A (en) Process for delignifying fibrous material and using a catalyst
BR9711438A (en) Process for treating a fibrous material and article thereof
FI970591A (en) Method and apparatus for defibering fibrous material
BR9502592A (en) Process for preparing a composite and composite
BR9700936A (en) Process material composition for preparing a porous synthetic material and product
PT886299E (en) DEVICE AND PROCESS FOR REPLACING SHEETS
BR9612449A (en) Process and apparatus for selection from multiple mixers
PT799866E (en) BLACK-SMOKE AND PROCESS FOR THEIR PREPARATION
PT1015530E (en) SYNTHETIC JET FUEL AND PROCESS FOR ITS PRODUCTION
BR9508499A (en) Process and apparatus for forming airfoil structures
BR9611980A (en) Method for externally sizing a fibrous material
BR9700823A (en) Device for changing a supply stock and process for manufacturing and using it
BR9503065A (en) Carrier material process for its preparation and registration material with a carrier
BR9703090A (en) Product and process for dyeing keratin fibers
BR9913367B1 (en) process for treating a textile material.
BR9500387A (en) Air filtration material, its application and process for the preparation of an air filtration material
BR9707176A (en) Process for making toilet paper
BR9710616A (en) Processes for processing fabric and decellulating a fabric
BR9707811A (en) Process for preparing a compound and compound
PT909270E (en) METHOD FOR THE PREPARATION OF 2,4-DIHYDROXYPRIDINE AND 2,4-DIHIDROXY-3-NITROPYRIDINE
FR2750978B3 (en) MATERIAL BASED ON MINERAL FIBERS
BR9701725A (en) Apparatus and process for forming a honeycomb structure from a material
BR9703092A (en) Composition and process for dyeing keratin fibers
BR9600289A (en) Sintering material and process for its preparation
BR9611792A (en) Activated catalyst composition and process for preparing the same

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]