ATE255187T1 - Verfahren zum auftrennen lignocellulosehaltiger biomasse - Google Patents

Verfahren zum auftrennen lignocellulosehaltiger biomasse

Info

Publication number
ATE255187T1
ATE255187T1 AT00925193T AT00925193T ATE255187T1 AT E255187 T1 ATE255187 T1 AT E255187T1 AT 00925193 T AT00925193 T AT 00925193T AT 00925193 T AT00925193 T AT 00925193T AT E255187 T1 ATE255187 T1 AT E255187T1
Authority
AT
Austria
Prior art keywords
lignin
alkanolamine
cellulose
lignocellulose
extracting
Prior art date
Application number
AT00925193T
Other languages
English (en)
Inventor
Ties Karstens
Original Assignee
Rhodia Acetow Gmbh
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 Rhodia Acetow Gmbh filed Critical Rhodia Acetow Gmbh
Application granted granted Critical
Publication of ATE255187T1 publication Critical patent/ATE255187T1/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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
    • 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
    • D21C3/003—Pulping cellulose-containing materials with organic compounds

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Treatment Of Sludge (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compounds Of Unknown Constitution (AREA)
AT00925193T 1999-04-12 2000-04-11 Verfahren zum auftrennen lignocellulosehaltiger biomasse ATE255187T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19916347A DE19916347C1 (de) 1999-04-12 1999-04-12 Verfahren zum Auftrennen lignocellulosehaltiger Biomasse
PCT/EP2000/003212 WO2000061858A1 (de) 1999-04-12 2000-04-11 Verfahren zum auftrennen lignocellulosehaltiger biomasse

Publications (1)

Publication Number Publication Date
ATE255187T1 true ATE255187T1 (de) 2003-12-15

Family

ID=7904218

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00925193T ATE255187T1 (de) 1999-04-12 2000-04-11 Verfahren zum auftrennen lignocellulosehaltiger biomasse

Country Status (18)

Country Link
EP (1) EP1190137B1 (de)
JP (1) JP2002541355A (de)
CN (1) CN1208514C (de)
AT (1) ATE255187T1 (de)
AU (1) AU756976B2 (de)
BR (1) BR0011169B1 (de)
CA (1) CA2368872C (de)
CZ (1) CZ298831B6 (de)
DE (2) DE19916347C1 (de)
ES (1) ES2213011T3 (de)
NO (1) NO20014939L (de)
NZ (1) NZ515051A (de)
PL (1) PL203363B1 (de)
PT (1) PT1190137E (de)
RU (1) RU2220245C2 (de)
SK (1) SK14392001A3 (de)
WO (1) WO2000061858A1 (de)
ZA (1) ZA200108406B (de)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10049340C1 (de) * 2000-10-05 2002-04-25 Rhodia Acetow Gmbh Verfahren zur Herstellung von Holocellulose durch Delignifizieren von lignocellulosehaltiger Biomasse
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
DE10145338C1 (de) * 2001-09-14 2003-04-17 Rhodia Acetow Gmbh Verfahren zum Abtrennen von Hemicellulosen aus hemicellulosehaltiger Biomasse
DE10158120A1 (de) * 2001-11-27 2003-06-18 Ties Karstens Verfahren zum Abtrennen von Xylose aus xylanreichen Lignocellulosen, insbesondere Holz
CN1806945B (zh) * 2005-01-20 2010-05-12 中国科学院过程工程研究所 利用秸秆预处理和酶解工艺使秸秆纤维素完全酶解的方法
CN100487059C (zh) * 2005-01-20 2009-05-13 中国科学院过程工程研究所 利用木质纤维原料制备可降解材料的方法
PT1883731E (pt) 2005-05-24 2016-01-26 Int Paper Co Fibras kraft modificadas
CA2959268A1 (en) 2005-07-19 2007-01-25 Inbicon A/S Method and apparatus for conversion of cellulosic material to ethanol
AU2005338842B2 (en) * 2005-12-07 2011-08-11 Kelly Anthony O'flynn A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein
FI123036B (fi) 2006-02-10 2012-10-15 Metso Paper Inc Menetelmä hydrolyysituotteiden talteenottamiseksi
FI20065105A0 (fi) * 2006-02-10 2006-02-10 Metso Paper Inc Menetelmä hydrolyysituotteiden talteenottamiseksi
DE602006019919D1 (de) * 2006-03-29 2011-03-10 Virginia Tech Intell Prop Celluloselösungsmittelbasierte fraktionierung von lignocellulose unter mässigen reaktionsbedingungen und eduktrückführung
US9206446B2 (en) 2006-05-01 2015-12-08 Board Of Trustees Of Michigan State University Extraction of solubles from plant biomass for use as microbial growth stimulant and methods related thereto
US8968515B2 (en) 2006-05-01 2015-03-03 Board Of Trustees Of Michigan State University Methods for pretreating biomass
EP2826869A1 (de) 2006-05-01 2015-01-21 Board of Trustees of Michigan State University Verfahren zur Behandlung einer Lignozellulose-Biomasse
CA2595484A1 (en) * 2006-08-07 2008-02-07 John Allan Fallavollita Process for recovery of holocellulose and near-native lignin from biomass
JP2008054640A (ja) * 2006-09-04 2008-03-13 Univ Of Tokyo バイオマス原料の処理方法、並びに、これを利用した糖の製造方法及びエタノールの製造方法
US7824521B2 (en) 2006-12-18 2010-11-02 University Of Maine System Board Of Trustees Process of treating a lignocellulosic material with hemicellulose pre-extraction and hemicellulose adsorption
US7842161B2 (en) * 2006-12-18 2010-11-30 The University Of Maine System Board Of Trustees Pre-extraction and solvent pulping of lignocellulosic material
CN101743257B (zh) * 2007-04-19 2013-04-10 马斯科马公司 木质纤维素生物质的联合热化学预处理和精制
CN101790611B (zh) * 2007-06-20 2013-11-20 纳格祖那能量私人有限公司 分离生物质组分的方法
US7819976B2 (en) * 2007-08-22 2010-10-26 E. I. Du Pont De Nemours And Company Biomass treatment method
BRPI0817084B1 (pt) 2007-09-07 2019-05-21 Council Of Scientific & Industrial Research Processo para o fracionamento de bagaço de cana-de-açúcar em polpa de alfa-celulose superior, xilano e lignina
CN101143881B (zh) * 2007-10-11 2011-03-16 孔延华 一种同时提取半纤维素、纤维素以及木质素并回收酚酸类物质的方法
CN101440108B (zh) * 2007-11-23 2011-04-06 中国科学院过程工程研究所 一种实现木质纤维类生物质组分分离的常压脱脂粗甘油预处理方法
CN101210033B (zh) * 2007-12-21 2011-09-07 武汉工程大学 一种植物纤维原料综合利用技术
DE102008013845A1 (de) * 2008-03-12 2009-09-17 Zylum Beteiligungsgesellschaft Mbh & Co. Patente Ii Kg Verfahren zur Herstellung von Bioethanol aus lignocellulosischer Biomasse
EP2300573B1 (de) * 2008-06-04 2018-10-10 Inbicon A/S Vorrichtungen und verfahren zum austragen von vorbehandelter biomasse von bereichen höheren drucks in bereiche niedrigeren drucks
KR101657100B1 (ko) * 2008-10-29 2016-09-19 삼성전자주식회사 리그노셀룰로오스계 바이오매스의 분별방법 및 분별장치
RU2011144375A (ru) * 2009-04-02 2013-05-10 Оберн Юниверсити Способ варки целлюлозы для повышения выхода и качества, включающий способы экстракции гемицеллюлозы и обработки лигноцеллюлозных материалов после экстракции гемицеллюлозы
DE102009017051A1 (de) 2009-04-09 2010-10-21 Zylum Beteiligungsgesellschaft Mbh & Co. Patente Ii Kg Verfahren zur Gewinnung von Zellstoff aus Lignocellulose-haltiger Biomasse
WO2010121366A1 (en) * 2009-04-23 2010-10-28 Greenfield Ethanol Inc. Separation of reactive cellulose from lignocellulosic biomass with high lignin content
WO2011007369A1 (en) * 2009-07-13 2011-01-20 Chemtex Italia S.R.L. High temperature lignin separation process
CA2760840C (en) 2009-08-24 2014-12-02 Board Of Trustees Of Michigan State University Pretreated densified biomass products and methods of making and using same
US10457810B2 (en) 2009-08-24 2019-10-29 Board Of Trustees Of Michigan State University Densified biomass products containing pretreated biomass fibers
US8945245B2 (en) 2009-08-24 2015-02-03 The Michigan Biotechnology Institute Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto
US9580454B2 (en) 2009-11-13 2017-02-28 Fpinnovations Biomass fractionation process for bioproducts
EP2333151A1 (de) * 2009-12-11 2011-06-15 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Neuartiges Verfahren zur Verarbeitung von lignocellulosehaltigem Material
CN105525043B (zh) 2010-01-19 2021-03-19 瑞恩麦特克斯股份有限公司 使用超临界流体从生物质产生可发酵的糖和木质素
MX2012008945A (es) * 2010-02-03 2012-11-30 Archer Daniels Midland Co Procedimiento mejorado para el fraccionamiento de biomasa lignocelulosica.
WO2011116320A1 (en) 2010-03-19 2011-09-22 Poet Research, Inc. System for treatment of biomass to facilitate the production of ethanol
EP2547778B1 (de) 2010-03-19 2019-09-04 POET Research, Inc. System zur behandlung von biomasse
BR112012026710B8 (pt) 2010-04-19 2020-06-23 Univ Michigan State método para produzir um produto extraído a partir de biomassa lignocelulósica e método para produzir um produto digerido a partir de biomassa lignocelulósica
WO2011142426A1 (ja) * 2010-05-12 2011-11-17 本田技研工業株式会社 リグノセルロース系バイオマスの糖化前処理物の製造方法及びそれに用いる糖化前処理装置
AU2010354974A1 (en) * 2010-06-10 2013-01-24 Department Of Biotechnology Process for fractionation of biomass
IT1402202B1 (it) 2010-09-29 2013-08-28 Chemtex Italia S R L Ora Chemtex Italia S P A Procedimento migliorato per recuperare zuccheri da un flusso di pretrattamento di biomassa lignocellulosica
US9932707B2 (en) 2010-11-05 2018-04-03 Greenfield Specialty Alcohols Inc. Bagasse fractionation for cellulosic ethanol and chemical production
CN103228707B (zh) 2010-11-05 2017-06-09 绿源乙醇公司 用于纤维素乙醇和化学品生产的蔗渣分级分离
US20120125551A1 (en) * 2010-11-23 2012-05-24 E. I. Du Pont De Nemours And Company Biomass pretreatment process for a packed bed reactor
US20120125548A1 (en) * 2010-11-23 2012-05-24 E. I. Du Pont De Nemours And Company Continuously fed biomass pretreatment process for a packed bed reactor
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
CA2806873C (en) * 2011-05-04 2014-07-15 Renmatix, Inc. Lignin production from lignocellulosic biomass
CN103635628B (zh) * 2011-06-30 2018-03-09 纳米绿色生物炼制公司 生物质的催化转化
BR112014000351A2 (pt) 2011-07-07 2017-01-10 Poet Res Inc “método para tratamento prévio de biomassa lignocelulósica”
KR20140072866A (ko) 2011-07-15 2014-06-13 그린필드 스페셜티 알콜스 아이엔씨. 발효 전 향상된 c5/c6 당류 방출을 위한 바이오매스의 조절
US8759498B2 (en) 2011-12-30 2014-06-24 Renmatix, Inc. Compositions comprising lignin
JP2013143918A (ja) * 2012-01-13 2013-07-25 Jx Nippon Oil & Energy Corp 酵素糖化用原料の製造方法、糖の製造方法、並びにエタノールの製造方法
WO2013131015A1 (en) 2012-03-02 2013-09-06 Board Of Trustees Of Michigan State University Methods for increasing sugar yield with size-adjusted lignocellulosic biomass particles
EP2878349B1 (de) * 2012-05-03 2022-07-06 Virdia, LLC Fraktionierung eines Gemisches mittels sequenzieller simulierter Fliessbettchromatographie
CN102660884B (zh) * 2012-05-11 2014-06-11 南开大学 一种采用氨水蒸汽爆破技术处理秸秆制取半纤维素的方法
FI124553B (fi) * 2012-07-11 2014-10-15 Bln Woods Ltd Ab Menetelmä biomassan uuttamiseksi
CN102864668B (zh) * 2012-09-18 2015-03-11 北京林业大学 木质纤维素原料预处理方法
FI127582B (en) * 2014-01-10 2018-09-14 Ab Bln Woods Ltd Procedure for extracting lignin
SE537929C2 (sv) * 2014-02-11 2015-11-24 Daprox Ab Raffinöranordning och ett förfarande för raffinering av cellulosamaterial
EP4477306A3 (de) * 2014-05-01 2024-12-25 Renmatix, Inc. Aufwertung von lignin aus ligninhaltigen rückständen durch reaktive extraktion
CN104313930B (zh) * 2014-09-22 2016-08-31 洛阳华高轴承科技有限公司 一种利用废弃玉米秸秆造纸制浆的工艺方法
CA2962606C (en) 2014-09-26 2019-01-29 Renmatix, Inc. Cellulose-containing compositions and methods of making same
ES2628239T3 (es) * 2014-12-01 2017-08-02 S2P Ag Straw - Pulp & Paper Procedimiento para la fabricación de un fertilizante de licor negro
MX2017012913A (es) 2015-04-10 2018-06-06 Comet Biorefining Inc Metodos y composiciones para el tratamiento de biomasa celulosica y productos producidos por estos.
CN105154986A (zh) * 2015-08-04 2015-12-16 江南大学 一种碱预处理、低压力蒸汽闪爆与生物酶联合处理综合利用棉秆皮的方法
CN105198939B (zh) * 2015-09-19 2017-10-10 北京化工大学 一种低分子量木质素的制备方法
CN105672012B (zh) * 2016-01-27 2018-11-06 中信格义循环经济有限公司 从生物质原料中同时提取半纤维素、纤维素和木质素的方法
CN105780569A (zh) * 2016-05-19 2016-07-20 黄德辉 非木纤维工业原料的物理制备方法
CN106040702A (zh) * 2016-06-03 2016-10-26 合肥原印农业科技有限公司 一种农作物秸秆回收制备工艺
FI128486B (en) 2016-07-01 2020-06-15 Ch Bioforce Oy Procedure for conversion of fresh biomass
WO2018009502A1 (en) 2016-07-06 2018-01-11 Virdia, Inc. Methods of refining a lignocellulosic hydrolysate
CN106368032B (zh) * 2016-09-19 2018-06-22 华南理工大学 一种同时制备纤维素纤维和半纤维素溶液的方法
DE102016219719B3 (de) * 2016-10-11 2018-01-25 Clariant International Ltd. Verfahren zur Gewinnung von Cellulose, Hemicellulose und Lignin aus Lignocellulose aus pflanzlicher Biomasse
KR101736156B1 (ko) 2016-11-14 2017-05-18 주식회사 대경에스코 급속 열분해용 바이오매스 미분쇄 공정을 포함한 바이오 오일 제조 장치 및 그 방법
BR102018004591B1 (pt) 2017-03-08 2019-11-12 Univ Michigan State método de pré-tratamento de biomassa
US11440999B2 (en) 2017-07-07 2022-09-13 Board Of Trustees Of Michigan State University De-esterification of biomass prior to ammonia pretreatment
CA3099535C (en) 2018-05-10 2024-01-16 Comet Biorefining Inc. Compositions comprising glucose and hemicellulose and their use
CN110894248A (zh) * 2018-09-12 2020-03-20 上海昶法新材料有限公司 一种从预水解液中提取半纤维素的方法
JP2022532566A (ja) 2019-05-10 2022-07-15 コメット バイオリファイニング インコーポレイテッド アラビノキシラン組成物を生成する材料及び方法
SE543253C2 (en) * 2019-06-26 2020-11-03 Valmet Oy Method for extracting hemicellulose from lignocellulosic material
CA3074194A1 (en) * 2020-02-28 2021-08-28 Fluid Energy Group Ltd. Modified sulfuric acid and uses thereof
EP4023813A1 (de) 2020-12-29 2022-07-06 Technische Universität Wien Verfahren zur herstellung von produkten auf basis von holz als rohstoff
EP4023812A1 (de) * 2020-12-29 2022-07-06 MM BOARD & PAPER GmbH Verfahren zur herstellung von produkten auf basis von holz als rohstoff
WO2023047423A1 (en) * 2021-09-27 2023-03-30 Fuma Labs Private Limited Process for treatment of biomass for pulping and biorefinery applications
CN116178576A (zh) * 2022-12-12 2023-05-30 国科绿海(天津)科技发展有限公司 一种金竹草全质化多产物的分离处理方法
US12428783B1 (en) 2023-05-04 2025-09-30 United Arab Emirates University Lignin removal from lignocellulosic waste using rejected brine solution
CN116856188A (zh) * 2023-07-12 2023-10-10 湖南山润油茶科技发展有限公司 一种从油茶蒲中制备纤维素纤维的方法及所制备的纤维素纤维

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2192202A (en) * 1936-10-23 1940-03-05 Floyd C Peterson Pulping process
BE579421A (fr) * 1958-11-27 1959-10-01 Avebene Procédés de fabrication et utilisation de condensats de lignine
US4397712A (en) * 1975-02-12 1983-08-09 New Fibers International Semi-chemical pulping process
DE2803465A1 (de) * 1978-01-27 1979-08-02 Hans Dipl Ing Knauth Verfahren zur erzeugung von zellstoff aus pflanzlichen faserrohstoffen unter verwendung organischer loesungsmittel - hydrosolvverfahren
US4259151A (en) * 1978-11-22 1981-03-31 New Fibers International Pulping apparatus
CA1173380A (en) * 1980-02-19 1984-08-28 Michael I. Sherman Acid hydrolysis of biomass for ethanol production
FR2518573A1 (en) * 1981-12-21 1983-06-24 British Petroleum Co Saccharification of lignocellulosic material - involves pretreatment with delignifying solvent comprising an amine, pref. ethanolamine, and enzymatic hydrolysis
US4548675A (en) * 1983-05-16 1985-10-22 New Fibers International Nonsulfur chemimechanical pulping process
CA1232109A (en) * 1984-12-11 1988-02-02 Peter K. Kauppi Pulping process
SU1567700A1 (ru) * 1988-05-04 1990-05-30 Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности Способ предварительного гидролиза древесины перед сульфатной варкой целлюлозы
CA1322366C (en) * 1989-09-29 1993-09-21 Quang A. Nguyen Continuous leaching of lignin or hemicellulose and lignin from steam pretreated lignocellosic particulate material
US5730837A (en) * 1994-12-02 1998-03-24 Midwest Research Institute Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars
DE19730486C2 (de) * 1997-07-16 2000-02-24 Rhodia Acetow Ag Verfahren zur Behandlung von lignocellulosehaltiger Biomasse

Also Published As

Publication number Publication date
NO20014939L (no) 2001-12-04
BR0011169B1 (pt) 2011-02-22
CA2368872A1 (en) 2000-10-19
CZ20013627A3 (cs) 2003-10-15
BR0011169A (pt) 2002-02-19
DE50004573D1 (de) 2004-01-08
EP1190137A1 (de) 2002-03-27
CA2368872C (en) 2005-11-29
SK14392001A3 (sk) 2002-04-04
DE19916347C1 (de) 2000-11-09
EP1190137B1 (de) 2003-11-26
NO20014939D0 (no) 2001-10-10
CZ298831B6 (cs) 2008-02-20
PL203363B1 (pl) 2009-09-30
PT1190137E (pt) 2004-04-30
ZA200108406B (en) 2002-12-24
CN1352716A (zh) 2002-06-05
JP2002541355A (ja) 2002-12-03
AU4399500A (en) 2000-11-14
NZ515051A (en) 2003-03-28
PL351393A1 (en) 2003-04-07
ES2213011T3 (es) 2004-08-16
CN1208514C (zh) 2005-06-29
RU2220245C2 (ru) 2003-12-27
WO2000061858A1 (de) 2000-10-19
AU756976B2 (en) 2003-01-30

Similar Documents

Publication Publication Date Title
ATE255187T1 (de) Verfahren zum auftrennen lignocellulosehaltiger biomasse
EA200300946A1 (ru) Способ отделения гемицеллюлозы от биомассы, содержащей гемицеллюлозу, а также биомасса и гемицеллюлоза, полученные этим способом
ATE251689T1 (de) Verfahren zur herstellung von zellstoff, lignin, zucker und essigsäure durch fraktionierung des lignocellulosematerials mittels ameisensäure und essigsäure
RU2001130355A (ru) Способ разделения лигноцеллюлозной биомассы
FI3137553T3 (fi) Ligniinin jalostaminen ligniinipitoisista jäännöksistä reaktiivisen uuton avulla
NO20021336D0 (no) Gjenvinningsprosess av fluktige forbindelser fra faststoffer i en vandig opplösning
HRP20220745T1 (hr) Proces u više koraka za izoliranje komponenti iz miscanthusa
ATE184308T1 (de) Streckmittel für holzwerkstoff-bindemittel und verfahren zu seiner herstellung
US20080181999A1 (en) Water Leaching Method to Extract Oil Plant Products
RU2018133416A (ru) Способ получения экстрактов гемицеллюлозы
ATE285826T1 (de) Lösungsmittelextraktionsverfahren
ATE330761T1 (de) Verfahren zum trocknen von lignozellulose enthaltendem material
ES2076899A1 (es) Nuevo metodo de tratamiento de orujos provenientes de la extraccion de aceite de oliva.
DK0795022T3 (da) Forarbejdningsanlæg for fast husholdningsaffald og fremgangsmåde til kommerciel fremstilling af mælkesyre
AT366404B (de) Verfahren zum heissbrikettieren von organischen feststoffen, insbesondere von braunkohle, nach trocknung durch heisswasser oder dampf
JPH02131591A (ja) リグノセルロース系バイオマスの処理方法
ATE509747T1 (de) Verfahren zum veredeln von holzteilen
DE59505393D1 (de) Verfahren zur gewinnung von zellstoff
CN107614536B (zh) 用于处理木质纤维素材料的方法
JP2015178639A (ja) リグノセルロース物質を原料とする固体燃料の製造方法
SU636311A1 (ru) Способ подготовки волокнистой массы
JP2014034744A (ja) 溶解クラフトパルプの製造方法
DE602005023372D1 (de) Verfahren zum Herstellen von Pflanzenfilzen aus Werg
DE50205037D1 (de) Verfahren zum Reinigen einer Anlage zur Trockenbeleimung von zellulosen Fasern
KR910011314A (ko) 분해된 리그노셀루로우즈 재료로부터 화학성분들을 추출하는 방법

Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee