BR112015027772A2 - integrated processes to purify a cellulosic material - Google Patents
integrated processes to purify a cellulosic materialInfo
- Publication number
- BR112015027772A2 BR112015027772A2 BR112015027772A BR112015027772A BR112015027772A2 BR 112015027772 A2 BR112015027772 A2 BR 112015027772A2 BR 112015027772 A BR112015027772 A BR 112015027772A BR 112015027772 A BR112015027772 A BR 112015027772A BR 112015027772 A2 BR112015027772 A2 BR 112015027772A2
- Authority
- BR
- Brazil
- Prior art keywords
- hemicellulose
- cellulosic
- separating
- wet pulp
- integrated processes
- Prior art date
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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
-
- 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
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
-
- 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
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic 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
- 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
resumo processos integrados para purificar um material celulósico trata-se de um processo para converter um material de partida em um material de polpa purificado, que compreende remover lignina de um material de partida para formar uma polpa úmida que compreende pelo menos 5% em peso de água, extrair hemicelulose da polpa úmida com um agente de extração e separar a hemicelulose extraída da mistura de extração para formar um produto celulósico que compreende menos hemicelulose que a polpa úmida. o agente de extração compreende um solvente de celulose e um cossolvente. o produto celulósico mantém vantajosamente sua morfologia de fibra celulósica. o processo envolve separar e recuperar hemicelulose e separar e reciclar correntes de processo empregadas no processo.abstract “integrated processes for purifying a cellulosic material” means a process for converting a starting material into a purified pulp material, which comprises removing lignin from a starting material to form a wet pulp comprising at least 5% by weight of water, extracting hemicellulose from the wet pulp with an extraction agent, and separating the extracted hemicellulose from the extraction mixture to form a cellulosic product that comprises less hemicellulose than the wet pulp. the extracting agent comprises a cellulose solvent and a co-solvent. the cellulosic product advantageously retains its cellulosic fiber morphology. the process involves separating and recovering hemicellulose and separating and recycling process streams employed in the process.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361819150P | 2013-05-03 | 2013-05-03 | |
US201361862914P | 2013-08-06 | 2013-08-06 | |
US201361862917P | 2013-08-06 | 2013-08-06 | |
US201361873764P | 2013-09-04 | 2013-09-04 | |
US201461933203P | 2014-01-29 | 2014-01-29 | |
PCT/US2014/036597 WO2014179702A1 (en) | 2013-05-03 | 2014-05-02 | Integrated processes for purifying a cellulosic material |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112015027772A2 true BR112015027772A2 (en) | 2017-07-25 |
Family
ID=50896557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112015027772A BR112015027772A2 (en) | 2013-05-03 | 2014-05-02 | integrated processes to purify a cellulosic material |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140326422A1 (en) |
EP (1) | EP2992135A1 (en) |
BR (1) | BR112015027772A2 (en) |
WO (1) | WO2014179702A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
US9365525B2 (en) | 2013-02-11 | 2016-06-14 | American Science And Technology Corporation | System and method for extraction of chemicals from lignocellulosic materials |
US20150232582A1 (en) * | 2014-02-19 | 2015-08-20 | Celanese Acetate Llc | Hemicellulose Compositions |
US9382283B2 (en) * | 2014-08-01 | 2016-07-05 | American Science And Technology Corporation | Oxygen assisted organosolv process, system and method for delignification of lignocellulosic materials and lignin recovery |
WO2016022459A1 (en) * | 2014-08-05 | 2016-02-11 | Celanese Acetate Llc | Processes for pretreating and purifying a cellulosic material |
US10323101B2 (en) * | 2014-10-27 | 2019-06-18 | National University Corporation Kanazawa University | Method for producing polysaccharide derivative and lignin derivative |
US9950858B2 (en) | 2015-01-16 | 2018-04-24 | R.J. Reynolds Tobacco Company | Tobacco-derived cellulose material and products formed thereof |
CA2996423A1 (en) * | 2015-08-27 | 2017-03-02 | Kimberly Nelson | Nanocellulose production co-located at a pulp and paper mill |
US10907184B2 (en) * | 2015-11-24 | 2021-02-02 | National Technology & Engineering Solutions Of Sandia, Llc | Ammonium based ionic liquids useful for lignocellulosic processing |
US11154087B2 (en) | 2016-02-02 | 2021-10-26 | R.J. Reynolds Tobacco Company | Method for preparing flavorful compounds isolated from black liquor and products incorporating the flavorful compounds |
RU2637015C1 (en) * | 2016-11-08 | 2017-11-29 | Евгений Александрович Луканин | Method of producing purified cellulose from lumber fibre |
CN106750360B (en) * | 2016-11-22 | 2020-02-07 | 重庆中烟工业有限责任公司 | Method for separating lignin by using alkaline ionic liquid-reverse solution system |
US10196778B2 (en) | 2017-03-20 | 2019-02-05 | R.J. Reynolds Tobacco Company | Tobacco-derived nanocellulose material |
EP3421662A1 (en) * | 2017-06-30 | 2019-01-02 | Fundación Tecnalia Research & Innovation | Process for separating lignin from lignocellulosic materials |
CN109776697A (en) * | 2017-11-13 | 2019-05-21 | 中国科学院大连化学物理研究所 | A method of cellulose, hemicellulose and lignin in separation sawdust and stalk |
WO2019143802A1 (en) * | 2018-01-17 | 2019-07-25 | Texas Tech University System | Dissolution of cellulose in ionic liquids |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19856582C1 (en) * | 1998-12-08 | 2001-03-15 | Rhodia Acetow Ag | Process for the production of chemical pulp from wood chips |
AU2003904323A0 (en) * | 2003-08-13 | 2003-08-28 | Viridian Chemical Pty Ltd | Solvents based on salts of aryl acids |
AU2008213907B2 (en) * | 2007-02-07 | 2011-05-19 | Queensland University Of Technology | Fractionation of a lignocellulosic material |
US7828936B2 (en) * | 2007-09-28 | 2010-11-09 | Weyerhaeuser Nr Company | Dissolution of cellulose in mixed solvent systems |
BRPI0914748A2 (en) * | 2008-07-01 | 2015-10-20 | Merck Patent Gmbh | application of ionic liquids containing tricyclide anions as solvent to extract alcohols from aqueous solutions |
US8241873B2 (en) * | 2008-12-19 | 2012-08-14 | E I Du Pont De Nemours And Company | Organic solvent pretreatment of biomass to enhance enzymatic saccharification |
KR20110123184A (en) * | 2010-05-06 | 2011-11-14 | 바히아 스페셜티 셀룰로스 에스에이 | Method and system for high alpha dissolving pulp production |
WO2012080702A2 (en) * | 2010-12-15 | 2012-06-21 | Imperial Innovations Ltd | Treatment |
CN102174754A (en) * | 2011-01-07 | 2011-09-07 | 华南理工大学 | Solvent for separating biomass, and application thereof in selective separation of biomass |
US20140048221A1 (en) * | 2012-08-20 | 2014-02-20 | Celanese International Corporation | Methods for extracting hemicellulose from a cellulosic material |
-
2014
- 2014-05-02 BR BR112015027772A patent/BR112015027772A2/en not_active IP Right Cessation
- 2014-05-02 US US14/268,610 patent/US20140326422A1/en not_active Abandoned
- 2014-05-02 WO PCT/US2014/036597 patent/WO2014179702A1/en active Application Filing
- 2014-05-02 EP EP14728768.4A patent/EP2992135A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2014179702A1 (en) | 2014-11-06 |
EP2992135A1 (en) | 2016-03-09 |
US20140326422A1 (en) | 2014-11-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] | ||
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] | ||
B350 | Update of information on the portal [chapter 15.35 patent gazette] |