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)

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GB9930422D0 (en) 1999-12-22 2000-02-16 Unilever Plc Bleach catalysts
WO2002099184A2 (en) * 2001-06-06 2002-12-12 Solutia Inc. Method and aqueous 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
PT2402087E (en) 2005-05-27 2013-07-22 Catexel Ltd Performed transition metal catalyst salts
WO2007042192A2 (en) * 2005-10-12 2007-04-19 Unilever Plc Bleaching of substrates
US7976582B2 (en) * 2007-01-16 2011-07-12 Conopco, Inc. 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
BRPI1012052A2 (en) * 2009-05-28 2017-12-26 Gp Cellulose Gmbh hydrolyzed and chemically modified kraft fibers and kraft fiber production and bleaching methods
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
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
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
EP2354130A1 (en) 2010-02-02 2011-08-10 Momentive Specialty Chemicals Research Belgium Manufacture of an epoxyethyl carboxylate or glycidyl carboxylate
EP2357180A1 (en) 2010-02-02 2011-08-17 Momentive Specialty Chemicals Research Belgium S.A. Manufacture of epoxyethyl ethers or glycidyl ethers
EP2354129A1 (en) 2010-02-02 2011-08-10 Momentive Specialty Chemicals Research Belgium S.A. Epoxidation process
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 (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
MX353539B (en) 2011-05-23 2018-01-17 Gp Cellulose Gmbh Star 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
CN104302831A (en) 2012-01-12 2015-01-21 Gp纤维素股份有限公司 Low viscosity kraft fiber having reduced yellowing properties and method of making and using same
US8871051B2 (en) 2012-03-21 2014-10-28 Los Alamos National Security, Llc Process for decomposing lignin in biomass
CN106968127B (en) 2012-04-18 2019-03-01 Gp纤维素股份有限公司 Needlebush kraft pulp for viscose solution
JP6472758B2 (en) 2013-02-08 2019-02-20 ゲーペー ツェルローゼ ゲーエムベーハー Softwood kraft fiber with improved α-cellulose content and its use in the production of chemical cellulose products
BR112015019882A2 (en) 2013-03-14 2017-07-18 Gp Cellulose Gmbh oxidized bleached kraft fiber and methods for making kraft pulp and softwood kraft fiber and for bleaching multi-stage bleaching cellulose kraft pulp
BR112015020000A2 (en) 2013-03-15 2017-07-18 Gp Cellulose Gmbh chemically modified kraft fiber and manufacturing methods
ES2894685T3 (en) 2013-08-16 2022-02-15 Catexel Tech Limited Composition
US9371228B2 (en) * 2013-09-12 2016-06-21 Air Products And Chemicals, Inc. Integrated process for production of ozone and oxygen
KR20160085281A (en) 2013-11-06 2016-07-15 에보닉 데구사 게엠베하 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
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69125310T2 (en) * 1990-05-21 1997-07-03 Unilever Nv Bleach activation
CA2083661A1 (en) * 1991-11-26 1993-05-27 Rudolf J. Martens 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
DE69511410T2 (en) * 1994-06-13 1999-12-16 Unilever N.V., Rotterdam WHITE 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
EP0900300A1 (en) 1999-03-10
CA2255588A1 (en) 1997-11-27
CN1225698A (en) 1999-08-11
JP2000510914A (en) 2000-08-22
US20010025695A1 (en) 2001-10-04
DE19620241A1 (en) 1997-11-27
WO1997044520A1 (en) 1997-11-27

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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]