BR112015027773A2 - processes for purifying cellulosic material - Google Patents
processes for purifying cellulosic materialInfo
- Publication number
- BR112015027773A2 BR112015027773A2 BR112015027773A BR112015027773A BR112015027773A2 BR 112015027773 A2 BR112015027773 A2 BR 112015027773A2 BR 112015027773 A BR112015027773 A BR 112015027773A BR 112015027773 A BR112015027773 A BR 112015027773A BR 112015027773 A2 BR112015027773 A2 BR 112015027773A2
- Authority
- BR
- Brazil
- Prior art keywords
- cellulosic material
- cellulosic
- hemicellulose
- processes
- separating
- 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 para purificar material celulósico trata-se de um processo para tratar um material celulósico que compreende extrair o material celulósico com um agente de extração para extrair seletivamente hemicelulose do mesmo e separar a hemicelulose extraída para formar um produto celulósico que compreende menos hemicelulose que o material celulósico. o agente de extração compreende um solvente de celulose e um cossolvente. o produto celulósico mantém vantajosamente sua morfologia de fibra celulósica. os processos envolvem separar e recuperar a hemicelulose e separar e reciclar várias correntes de processo empregadas no processo.abstract “processes for purifying cellulosic material” means a process for treating a cellulosic material which comprises extracting the cellulosic material with an extracting agent to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. the extracting agent comprises a cellulose solvent and a co-solvent. the cellulosic product advantageously retains its cellulosic fiber morphology. the processes involve separating and recovering the hemicellulose and separating and recycling various process streams employed in the process.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361819150P | 2013-05-03 | 2013-05-03 | |
US201361862917P | 2013-08-06 | 2013-08-06 | |
PCT/US2014/036550 WO2014179673A1 (en) | 2013-05-03 | 2014-05-02 | Processes for purifying a cellulosic material |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112015027773A2 true BR112015027773A2 (en) | 2017-07-25 |
Family
ID=50943559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112015027773A BR112015027773A2 (en) | 2013-05-03 | 2014-05-02 | processes for purifying cellulosic material |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140326421A1 (en) |
BR (1) | BR112015027773A2 (en) |
WO (1) | WO2014179673A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10233292B2 (en) * | 2012-12-07 | 2019-03-19 | National Technology & Engineering Solutions Of Sandia, Llc | Renewable aromatics from lignocellulosic lignin |
US10208076B2 (en) | 2012-12-07 | 2019-02-19 | National Technology & Engineering Solutions Of Sandia, Llc | Renewable aromatics from lignocellulosic lignin |
US20150232582A1 (en) * | 2014-02-19 | 2015-08-20 | Celanese Acetate Llc | Hemicellulose Compositions |
GB201406366D0 (en) | 2014-04-09 | 2014-05-21 | Plaxica Ltd | Biomass processing method |
WO2017044039A1 (en) * | 2015-09-11 | 2017-03-16 | Carbiotix Ab | Low molecular weight arabinoxylans with branched oligosaccharides |
CN106320057B (en) * | 2016-08-22 | 2018-01-19 | 云南中烟工业有限责任公司 | A kind of fine and close grey type general anesthesia cigarette paper of bag and preparation method thereof |
CN107245893B (en) * | 2017-06-19 | 2019-01-04 | 中国烟草总公司广东省公司 | The method of cellulose is extracted from tobacco waste |
CN107740305B (en) * | 2017-11-23 | 2020-05-12 | 齐鲁工业大学 | Method for preparing high-strength corrugated base paper from straws |
EA202092813A1 (en) * | 2018-05-28 | 2021-02-18 | Пирсон Кэпитал Инвайронментал (Бейдзин) Лимитед | EFFECTIVE METHODS AND COMPOSITIONS FOR REMOVING PRODUCTS FROM PRE-TREATMENT WITH ORGANIC ACIDS OF PLANT MATERIALS |
IT202000003745A1 (en) | 2020-02-24 | 2021-08-24 | Consiglio Nazionale Ricerche | METHOD AND RELATED APPARATUS FOR THE TREATMENT OF CIGARETTE BUTTS |
CN112573856A (en) * | 2020-12-31 | 2021-03-30 | 保定中联水泥有限公司 | Preparation method of cement grinding aid |
US20230374730A1 (en) * | 2022-05-17 | 2023-11-23 | Bracell Bahia Specialty Cellulose SA | Apparatuses, methods and systems for yield increase in a kraft cooking plant |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3618352A1 (en) | 1986-05-31 | 1987-12-03 | Huels Chemische Werke Ag | METHOD FOR PRODUCING AQUEOUS N-METHYLMORPHOLIN-N-OXIDE SOLUTIONS |
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 |
CA2674941A1 (en) | 2007-01-23 | 2008-07-31 | Basf Se | Method for producing glucose by enzymatic hydrolysis of cellulose that can be pretreated with an ionic liquid containing a polyatomic anion |
BRPI0806908A2 (en) | 2007-01-23 | 2014-04-29 | Basf Se | PROCESSES FOR PREPARING A GLUCOSE PRODUCT FROM LIGNOCELLULOSTIC MATERIAL, AND FOR PREPARING A MICROBIAN METABOLISM PRODUCT, GLUCOSE PRODUCT, AND LIGNIN PRODUCT |
WO2008095252A1 (en) * | 2007-02-07 | 2008-08-14 | Queensland University Of Technology | Fractionation of a lignocellulosic material |
US20090084509A1 (en) * | 2007-09-28 | 2009-04-02 | Weyerhaeuser Company | Dissolution of Cellulose in Mixed Solvent Systems |
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 |
US8980050B2 (en) * | 2012-08-20 | 2015-03-17 | Celanese International Corporation | Methods for removing hemicellulose |
BR112013015190B1 (en) * | 2010-12-15 | 2021-05-11 | Imperial Innovations Limited | method of treating a lignocellulose biomass to dissolve lignin in it and process of preparing glucose from a lignocellulose biomass |
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 |
US8986501B2 (en) * | 2012-08-20 | 2015-03-24 | Celanese International Corporation | Methods for removing hemicellulose |
-
2014
- 2014-05-02 BR BR112015027773A patent/BR112015027773A2/en not_active IP Right Cessation
- 2014-05-02 US US14/268,462 patent/US20140326421A1/en not_active Abandoned
- 2014-05-02 WO PCT/US2014/036550 patent/WO2014179673A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2014179673A1 (en) | 2014-11-06 |
US20140326421A1 (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] |