ATE277222T1 - Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien - Google Patents

Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien

Info

Publication number
ATE277222T1
ATE277222T1 AT00913202T AT00913202T ATE277222T1 AT E277222 T1 ATE277222 T1 AT E277222T1 AT 00913202 T AT00913202 T AT 00913202T AT 00913202 T AT00913202 T AT 00913202T AT E277222 T1 ATE277222 T1 AT E277222T1
Authority
AT
Austria
Prior art keywords
chemicals
recovery
chemical
liganocellulosic
dissioning
Prior art date
Application number
AT00913202T
Other languages
English (en)
Inventor
Lars Stigsson
Original Assignee
Kiram Ab
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 Kiram Ab filed Critical Kiram Ab
Application granted granted Critical
Publication of ATE277222T1 publication Critical patent/ATE277222T1/de

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/08—Pretreatment of the finely-divided materials before digesting with oxygen-generating compounds
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/10—Physical methods for facilitating impregnation
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis
    • 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
    • D21C3/263—Multistage processes at least one stage being in presence of oxygen
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
AT00913202T 1999-02-15 2000-02-14 Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien ATE277222T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9900191 1999-02-15
PCT/SE2000/000288 WO2000047812A1 (en) 1999-02-15 2000-02-14 Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals

Publications (1)

Publication Number Publication Date
ATE277222T1 true ATE277222T1 (de) 2004-10-15

Family

ID=20414187

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00913202T ATE277222T1 (de) 1999-02-15 2000-02-14 Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien

Country Status (9)

Country Link
US (1) US6770168B1 (de)
EP (1) EP1161592B1 (de)
JP (1) JP2002536563A (de)
CN (1) CN1213197C (de)
AT (1) ATE277222T1 (de)
BR (1) BR0008237B1 (de)
CA (1) CA2356444C (de)
DE (1) DE60014045D1 (de)
WO (1) WO2000047812A1 (de)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6604100A (en) * 2000-02-14 2001-08-20 Kiram Ab Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals
GB0004988D0 (en) 2000-03-01 2000-04-19 Unilever Plc Composition and method for bleaching a substrate
SE0004185D0 (sv) * 2000-11-15 2000-11-15 Nykomb Synergetics B V New process
DE10109502A1 (de) * 2001-02-28 2002-09-12 Rhodia Acetow Gmbh Verfahren zum Abtrennen von Hemicellulosen aus hemicellulosehaltiger Biomasse sowie die mit dem Verfahren erhältliche Biomasse und Hemicellulose
US20030056910A1 (en) * 2001-09-24 2003-03-27 Mullen Walter Thomas Method to lower the release of hazardous air pollutants from kraft recovery process
SE0202711D0 (sv) * 2002-09-12 2002-09-12 Kiram Ab Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali
SE525065C2 (sv) * 2003-04-17 2004-11-23 Kvaerner Pulping Tech Förbehandling av flis med sur vätska vid ångbasning
US8262850B2 (en) * 2003-09-23 2012-09-11 International Paper Company Chemical activation and refining of southern pine kraft fibers
US20050076568A1 (en) * 2003-10-09 2005-04-14 Stigsson Lars Lennart Partial oxidation of cellulose spent pulping liquor
US7923802B2 (en) * 2006-10-13 2011-04-12 Hewlett-Packard Development Company, L.P. Method and apparatus for forming a photodiode
US20050155730A1 (en) * 2004-01-20 2005-07-21 Stigsson Lars L. Method for the production of high yield chemical pulp from softwood
US8317975B2 (en) 2004-04-20 2012-11-27 The Research Foundation Of The State University Of New York Product and processes from an integrated forest biorefinery
NZ562593A (en) 2005-05-02 2011-05-27 Int Paper Co Ligno cellulosic materials and the products made therefrom, using an oxidizing agent with a transition metal catalyst
CN101223314A (zh) * 2005-05-09 2008-07-16 托马斯·E·阿米登 综合森林生物精炼厂的新产品和方法
RU2388441C2 (ru) * 2005-05-24 2010-05-10 Интернэшнл Пэйпа Кампани Улучшенные крафтцеллюлозные волокна
US7520958B2 (en) * 2005-05-24 2009-04-21 International Paper Company Modified kraft fibers
BRPI0613681A2 (pt) 2005-07-19 2010-07-13 Holm Christensen Biosystemer A método e aparelho para conversão de material celulósico para etanol
CN100357517C (zh) * 2005-10-14 2007-12-26 山东轻工业学院 棉杆蒸煮预处理液
FI126694B (fi) * 2005-12-02 2017-04-13 Metsä Board Oyj Kemimekaaninen massa ja menetelmä sen valmistamiseksi
US7771565B2 (en) * 2006-02-21 2010-08-10 Packaging Corporation Of America Method of pre-treating woodchips prior to mechanical pulping
EP1852493A1 (de) * 2006-05-05 2007-11-07 BIOeCON International Holding N.V. Hydrothermale Behandlung von auf Kohlenstoff basierten Energieträger
JP5207191B2 (ja) * 2006-05-19 2013-06-12 ザ リサーチ ファンデーション オブ ステート ユニヴァーシティ オブ ニューヨーク セルロース系材料の炭酸塩前処理およびパルプ化の方法
US8262851B2 (en) * 2006-08-10 2012-09-11 Andritz Inc. Processes and systems for the pulping of lignocellulosic materials
ATE554725T1 (de) 2006-10-26 2012-05-15 Ams Res Corp Chirurgische artikel zur behandlung von beckenerkrankungen
US20080105392A1 (en) 2006-11-03 2008-05-08 Duggirala Prasad Y Method and composition for improving fiber quality and process efficiency in mechanical pulping
US7854847B2 (en) * 2006-11-09 2010-12-21 Rayonier Trs Holdings Inc. Process of purifying wood pulp with caustic-borate solution and recovering the purifying chemical
CH702124B1 (de) * 2007-03-02 2011-05-13 Eth Zuerich Verfahren zum Abbau von Lignin.
KR100873700B1 (ko) * 2007-06-25 2008-12-12 사단법인 한국가속기 및 플라즈마 연구협회 전자빔을 이용한 바이오 연료 제조 방법
US7955711B2 (en) * 2007-11-20 2011-06-07 Preventive Technology, Inc. Wood treatment solution and process
US20110151129A1 (en) * 2007-11-20 2011-06-23 Donald Castillo Wood treatment solution and process
WO2009117402A2 (en) 2008-03-18 2009-09-24 The Research Foundation Of State University Of New York Methods of pretreating comminuted cellulosic material with carbonate-containing solutions
WO2009138090A2 (en) * 2008-05-14 2009-11-19 Rådet For Agroindustri A process for the production of hydrolysed plant material
US20100159515A1 (en) 2008-12-19 2010-06-24 E.I. Du Pont De Nemours And Company Oxidative pretreatment of biomass to enhance enzymatic saccharification
HUE025623T2 (en) 2009-03-03 2016-04-28 Poet Res Inc A method of fermenting biomass for ethanol production
CA2754521C (en) * 2009-03-09 2015-11-10 Kiram Ab A shaped cellulose manufacturing process combined with a pulp mill recovery system
MX382645B (es) 2009-05-28 2025-03-13 Gp Cellulose Gmbh Celulosa modificada a partir de fibra kraft química y métodos para elaborarla y su uso.
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
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
ES2571977T3 (es) * 2009-06-10 2016-05-27 Valmet Oy Método para precipitar lignina a partir de lejía negra utilizando gases residuales
RU2495177C2 (ru) * 2009-06-15 2013-10-10 Аркема Инк. Перекисно-щелочная обработка отходов на интегрированном нейтрально-щелочном целлюлозно-бумажном комбинате
FI123023B (fi) * 2009-09-01 2012-10-15 Andritz Oy Menetelmä ja laitteisto suovan erottamiseksi
US8657960B2 (en) 2009-09-29 2014-02-25 Nova Pangaea Technologies, Inc. Method and system for fractionation of lignocellulosic biomass
US8366877B2 (en) * 2010-03-10 2013-02-05 Nalco Company Lipohydrophilic glycerol based polymers as digestion aids for improving wood pulping processes
US9416490B2 (en) 2010-03-10 2016-08-16 Nalco Company Cross-linked glycerol based polymers as digestion aids for improving wood pulping processes
FI123100B (fi) * 2010-03-11 2012-11-15 Metso Paper Inc Menetelmä sivutuotteiden talteenottamiseksi
CA2795501C (en) 2010-03-19 2019-02-26 Poet Research, Inc. System for the treatment of biomass
WO2011116320A1 (en) 2010-03-19 2011-09-22 Poet Research, Inc. System for treatment of biomass to facilitate the production of ethanol
US20110226997A1 (en) * 2010-03-19 2011-09-22 Air Products And Chemicals, Inc. Method And System Of Gasification
FI123270B2 (fi) * 2010-06-07 2019-04-15 Kemira Oyj Mikroselluloosan valmistus
EP2580389B1 (de) 2010-06-10 2016-05-25 Packaging Corporation Of America Verfahren zur herstellung von zellstoff für wellpappe
PT2627659T (pt) 2010-10-15 2016-07-25 Upm Kymmene Corp Método contínuo para a precipitação de lignina a partir do licor negro
SE1150015A1 (sv) * 2011-01-12 2012-07-13 Wallenius Water Ab Ozone bleaching of pulp
CN103547677B (zh) 2011-01-18 2016-10-12 波特研究公司 用于生物质水解的体系和方法
FI20115754A0 (fi) * 2011-03-22 2011-07-15 Andritz Oy Menetelmä ja järjestely kemiallisen massan käsittelemiseksi
WO2012138801A2 (en) * 2011-04-07 2012-10-11 Virdia Ltd Lignin compositions, methods of producing the compositions, methods of using lignin compositions, and products produced thereby
US8951388B2 (en) 2011-04-08 2015-02-10 Pec-Tech Engineering And Construction Pte Ltd Method and system for efficient production of dissolving pulp in a kraft mill producing paper grade pulp with a continuous type digester
CN103842524A (zh) 2011-07-07 2014-06-04 波特研究公司 酸回收系统和方法
WO2013036911A1 (en) * 2011-09-09 2013-03-14 University Of Tennessee Research Foundation Metal catalyzed oxidation of lignin and related compounds
WO2013068092A1 (en) 2011-11-08 2013-05-16 Eth Zurich Use of carbonium ion scavengers in the treatment of lignocellulosic biomass
CA2856196C (en) 2011-12-06 2020-09-01 Masco Corporation Of Indiana Ozone distribution in a faucet
FI126847B (en) * 2012-12-13 2017-06-15 Upm Kymmene Corp A process for the catalytic oxidation of cellulose and a process for preparing a cellulose product
BR112015017052A2 (pt) * 2013-01-16 2019-11-26 Clean Vantage Llc oxidação de biomassa por via úmida
CA2898417C (en) * 2013-02-08 2021-07-27 Arthur J. Nonni Softwood kraft fiber having an improved .alpha.-cellulose content and its use in the production of chemical cellulose products
MX364379B (es) * 2013-03-14 2019-04-24 Gp Cellulose Gmbh Un metodo para preparar una fibra kraft altamente funcional y de baja viscosidad, usando una secuencia de blanqueamiento acido, y una fibra hecha por el proceso.
JP2016521120A (ja) 2013-03-15 2016-07-21 セラノス， インコーポレイテッド 核酸増幅
CN105143547B (zh) 2013-03-15 2018-05-01 Gp 纤维素股份有限公司 具有增高羧基含量的低粘度牛皮纸纤维及其制造和使用方法
FI127002B (en) 2013-07-29 2017-09-15 Upm Kymmene Corp A process for the catalytic oxidation of cellulose and a process for preparing a cellulose product
US20150044306A1 (en) 2013-08-12 2015-02-12 Melvin Mitchell Process for fractionation and extraction of herbal plant material to isolate extractives for pharmaceuticals and nutraceuticals
US10207197B2 (en) 2013-08-12 2019-02-19 Green Extraction Technologies Process for ambient temperature fractionation and extraction of various biomasses
US20150045543A1 (en) 2013-08-12 2015-02-12 Melvin Mitchell Isolation method for water insoluble components of a biomass and products provided therefrom
WO2015036655A1 (en) * 2013-09-12 2015-03-19 Kemira Oyj Impregnation system and its use
CN103835172B (zh) * 2014-03-17 2016-03-30 昆明理工大学 一种思茅松丙二醇蒸煮制浆的方法
CN103835173B (zh) * 2014-03-17 2015-09-16 昆明理工大学 一种大龙竹预浸渍二乙醇胺-蒽醌蒸煮制浆方法
CN105274894B (zh) * 2015-11-13 2017-07-21 齐鲁工业大学 一种金属催化有机酸分离木质纤维素组分的方法
FR3077895B1 (fr) 2018-02-09 2020-02-28 Sas Woodoo Dispositif de detection tactile avec interface tactile en materiau composite
FR3044577B1 (fr) 2015-12-07 2017-12-22 Timothee Boitouzet Procede de delignification partielle et de remplissage d'un materiau ligno-cellulosique, et structure de materiau composite obtenue par ce procede
CN106108104A (zh) * 2015-12-18 2016-11-16 广东中烟工业有限责任公司 一种降低烟梗中木质素含量的处理方法
CN115093008B (zh) 2015-12-21 2024-05-14 德尔塔阀门公司 包括消毒装置的流体输送系统
WO2018093697A1 (en) 2016-11-16 2018-05-24 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same
US10619300B2 (en) * 2017-02-21 2020-04-14 Lakehead University Use of fly ash in biological process of wastewater treatment systems
CN119121674A (zh) 2017-03-21 2024-12-13 国际纸业公司 气味控制纸浆组合物
US11014951B2 (en) * 2017-04-27 2021-05-25 National Technology & Engineering Solutions Of Sandia, Llc Compositions and methods for depolymerizing lignin using a chelator-mediated Fenton reaction
FR3067275B1 (fr) 2017-06-07 2022-08-12 Timothee Boitouzet Procede de delignification partielle par voie supercritique ou subcritique et de remplissage d'un materiau ligno-cellulosique
CN107164988B (zh) * 2017-07-11 2019-02-05 横县东糖糖业有限公司纸业分公司 一种采用无硫蒸煮工艺生产板皮浆的方法
WO2019051212A1 (en) 2017-09-08 2019-03-14 Dte Materials Incorporated SELECTIVE DEPOLYMERIZATION OF CELLULOSIC MATERIALS FOR USE AS THERMAL AND ACOUSTIC INSULATORS
CN111344455B (zh) * 2017-09-11 2022-10-28 索理思科技公司 用于增强化学木浆的氧脱木质素的方法
CA3079732A1 (en) * 2017-10-17 2019-04-25 Auburn University Phenols as additives in kraft pulping
FR3086196B1 (fr) 2018-09-20 2022-12-16 Sas Woodoo Piece en materiau ligno-cellulosique et procede de fabrication d'une telle piece
CN109736119B (zh) * 2019-02-27 2021-09-21 华南理工大学 一种纸浆漂白方法
WO2021197629A1 (en) * 2020-04-03 2021-10-07 Rockwool International A/S Method for producing oxidized lignins and system for producing oxidized lignins
DE102020002445A1 (de) * 2020-04-23 2021-10-28 Messer Austria Gmbh Verfahren und Vorrichtung zur Herstellung von gebleichtem Zellstoff
DE102020002446A1 (de) 2020-04-23 2021-10-28 Messer Austria Gmbh Verfahren und Vorrichtung zur Weißlaugenoxidation
RU2761910C1 (ru) * 2020-10-12 2021-12-14 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный университет промышленных технологий и дизайна" Способ регенерации извести при производстве сульфатной целлюлозы
CA3110360A1 (en) * 2021-02-25 2022-08-25 Sixring Inc. Modified sulfuric acid and uses thereof
CN114753177A (zh) * 2022-03-22 2022-07-15 齐鲁工业大学 三元体系分离生物质组分的方法
US20240175205A1 (en) * 2022-11-29 2024-05-30 Solenis Technologies, L.P. Method for digesting lignocellulosic material
EP4428297A1 (de) * 2023-03-06 2024-09-11 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Verfahren zur gewinnung von vollständig oxidierter weisslauge zur verwendung in der faserlinie eines kraftzellstoffverfahrens
CN117925290B (zh) * 2024-03-21 2024-06-11 山东科迈生物制浆有限公司 一种制浆废料制备生物质燃料的方法
CN119035229A (zh) * 2024-08-21 2024-11-29 浙江凤登绿能环保股份有限公司 一种废橡胶料浆及其制备方法和应用、废橡胶料浆气化气

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE335053B (de) 1969-05-13 1971-05-10 Mo Och Domsjoe Ab
SE355614B (de) * 1970-05-13 1973-04-30 Mo Och Domsjoe Ab
JPS5130601B2 (de) * 1972-01-17 1976-09-02
US4045279A (en) 1972-01-17 1977-08-30 Toyo Pulp Co., Ltd. Process for the manufacture of pulp using sodium carbonate and oxygen
JPS5130602B2 (de) * 1972-03-11 1976-09-02
US4004967A (en) 1972-06-22 1977-01-25 Billeruds Aktiebolag Bleaching cellulose pulp with oxygen in the presence of formaldehyde
SE373896B (de) 1972-07-05 1975-02-17 Mo Och Domsjoe Ab
JPS5024502A (de) * 1973-03-09 1975-03-15
US4087318A (en) * 1974-03-14 1978-05-02 Mo Och Domsjo Aktiebolag Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound
ZA782384B (en) * 1977-05-02 1979-02-28 Australian Paper Manufacturers Alkaline pulping process
SE413785B (sv) * 1978-09-22 1980-06-23 Mo Och Domsjoe Ab Forfarande for uppslutning av lignocellulosahaltiga material genom alkalisk kokning i nervaro av ett tillsatsemne av redoxtyp
JPS57191389A (en) * 1981-03-23 1982-11-25 Kanzaki Paper Mfg Co Ltd Recovery of digesting aid
SE448173B (sv) 1985-06-03 1987-01-26 Croon Inventor Ab Forfarande for utvinning av kemikalier fran cellulosaavlut genom pyrolys

Also Published As

Publication number Publication date
JP2002536563A (ja) 2002-10-29
BR0008237A (pt) 2001-11-06
CN1340121A (zh) 2002-03-13
CA2356444C (en) 2009-12-15
WO2000047812A1 (en) 2000-08-17
CA2356444A1 (en) 2000-08-17
CN1213197C (zh) 2005-08-03
BR0008237B1 (pt) 2010-12-28
EP1161592B1 (de) 2004-09-22
DE60014045D1 (de) 2004-10-28
US6770168B1 (en) 2004-08-03
EP1161592A1 (de) 2001-12-12

Similar Documents

Publication Publication Date Title
DE60014045D1 (de) Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien
DE69434528D1 (de) Steigerung von laccase reaktionen
FI61925C (fi) Saett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tvao eller flera steg varav det sista med syrgas
DE69004492D1 (de) Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
ATE2018T1 (de) Verfahren zur delignifizierung und zum bleichen von chemischen und halbchemischen zellstoffen.
JPS61138793A (ja) 強化酸化抽出法
FI116393B (fi) Menetelmä selluloosamassan delignifioimiseksi ja valkaisemiseksi
SE9001467D0 (sv) Process och anordning foer kontinuerlig kokning av cellulosa
DE69208353D1 (de) Wiederverwendung von cellulosischem abfall
BR9507286A (pt) Processo para a produção de polpa celulósica alvejada
DE3669334D1 (de) Sulfitaufschlussverfahren zur herstellung von zellstoff aus lignozellulosehaltigen materialien mit rueckgewinnung der aufschlusschemikalien.
ATE130388T1 (de) Verfahren zum bleichen von mechanischem holzstoff.
DE69430009D1 (de) Verfahren zur herstellung von gebleichtem zellstoff
BR9915044A (pt) Processo para a produção de polpa a partir dematerial contendo lignocelulose
DE69210692D1 (de) Diskontinuierliches Verfahren zur Herstellung von Kraft-Zellstoffen
ATE498735T1 (de) Oxidierte weisslauge in einem delignifikationsverfahren
SE8003911L (sv) Forfarande for syrgasblekning av cellulosamassa
RU2140475C1 (ru) Способ и устройство для непрерывного получения целлюлозной массы
US6319357B1 (en) Method for two-stage oxygen bleaching and delignification of chemical pulp
SE9403786D0 (sv) Förfarande för utvinning av kemikalier och energi från cellulosaavlut
SE9403779D0 (sv) Sätt vid blekning av lignocellulosahaltig massa
SU1587095A1 (ru) Способ получени беленой целлюлозы дл химической переработки
WO1994011568A1 (en) Method of bleaching pulp
US5783037A (en) System and method for operating a pulp mill
JPS61194289A (ja) 古紙の再生方法

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties