MX355703B - Método para estabilizar fibra de lignina para la conversión adicional a fibra de carbono. - Google Patents
Método para estabilizar fibra de lignina para la conversión adicional a fibra de carbono.Info
- Publication number
- MX355703B MX355703B MX2014008876A MX2014008876A MX355703B MX 355703 B MX355703 B MX 355703B MX 2014008876 A MX2014008876 A MX 2014008876A MX 2014008876 A MX2014008876 A MX 2014008876A MX 355703 B MX355703 B MX 355703B
- Authority
- MX
- Mexico
- Prior art keywords
- fiber
- further conversion
- carbon fiber
- lignin
- stabilizing
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate
- D01F9/17—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate from lignin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2096/00—Use of specified macromolecular materials not provided for in a single one of main groups B29K2001/00 - B29K2095/00, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0058—Liquid or visquous
- B29K2105/0067—Melt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/731—Filamentary material, i.e. comprised of a single element, e.g. filaments, strands, threads, fibres
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Fibers (AREA)
- Paper (AREA)
Abstract
Se describe un método para producir una fibra de lignina estabilizada de lignina alcalina de madera blanda por tratamiento térmico en ausencia de oxidante. La fibra de lignina estabilizada puede ser tratada adicionalmente para obtener la fibra de carbono.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261589645P | 2012-01-23 | 2012-01-23 | |
SE1250041 | 2012-01-23 | ||
PCT/SE2013/050039 WO2013112100A1 (en) | 2012-01-23 | 2013-01-21 | Method for stabilizing lignin fiber for further conversion to carbon fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2014008876A MX2014008876A (es) | 2014-11-10 |
MX355703B true MX355703B (es) | 2018-04-27 |
Family
ID=48873736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2014008876A MX355703B (es) | 2012-01-23 | 2013-01-21 | Método para estabilizar fibra de lignina para la conversión adicional a fibra de carbono. |
Country Status (16)
Country | Link |
---|---|
US (1) | US11286582B2 (es) |
EP (1) | EP2807294B1 (es) |
JP (1) | JP6161631B2 (es) |
KR (1) | KR101938444B1 (es) |
CN (1) | CN104114756B (es) |
AR (1) | AR089759A1 (es) |
AU (1) | AU2013212731B2 (es) |
BR (1) | BR112014016461B1 (es) |
CA (1) | CA2861172C (es) |
IN (1) | IN2014DN06637A (es) |
MX (1) | MX355703B (es) |
RU (1) | RU2628959C2 (es) |
TW (1) | TWI589741B (es) |
UY (1) | UY34577A (es) |
WO (1) | WO2013112100A1 (es) |
ZA (1) | ZA201405182B (es) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140271443A1 (en) * | 2013-03-15 | 2014-09-18 | University Of Tennessee Research Foundation | High Glass Transition Lignins and Lignin Derivatives for the Manufacture of Carbon and Graphite Fibers |
FI20135842L (fi) | 2013-08-19 | 2015-02-20 | Valmet Technologies Oy | Menetelmä ja järjestelmä ligniinin käsittelemiseksi |
WO2015143497A1 (en) * | 2014-03-28 | 2015-10-01 | The University Of Queensland | Carbon fibres from bio-polymer feedstocks |
CN104085890B (zh) * | 2014-07-15 | 2016-05-11 | 李文军 | 玉米秸秆碳纤维生产方法 |
DE102014215807B3 (de) | 2014-08-08 | 2015-12-24 | Suncoal Industries Gmbh | Verfahren zur Gewinnung eines stabilisierten Lignins mit definierter Korngrößenverteilung aus einer Lignin beinhaltenden Flüssigkeit |
CN104695059A (zh) * | 2015-02-03 | 2015-06-10 | 北京林业大学 | 一种具有大比表面积的木质素基活性碳纤维的制备方法 |
FI126818B (en) | 2015-02-06 | 2017-06-15 | Valmet Technologies Oy | A method for treating lignin-based material |
CN104695060B (zh) * | 2015-02-12 | 2017-11-14 | 嘉兴学院 | 一种木质素基中空碳纤维的制备方法 |
AU2016276410B2 (en) * | 2015-06-11 | 2020-06-18 | Stora Enso Oyj | A fiber and a process for the manufacture thereof |
SE539261C2 (en) * | 2015-10-08 | 2017-06-07 | Stora Enso Oyj | A process for the manufacture of a lignin shaped body |
KR102596017B1 (ko) * | 2015-10-08 | 2023-10-30 | 스토라 엔소 오와이제이 | 전구체 얀의 제조 방법 |
FR3058166B1 (fr) * | 2016-10-28 | 2018-11-23 | Arkema France | Procede de fabrication de fibres de carbone a partir de precurseurs biosources et fibres de carbone obtenues |
CN107723847B (zh) * | 2017-10-26 | 2020-10-13 | 青岛大学 | 一种基于热传导制备木质素基多孔纳米碳纤维的方法 |
CN108002825B (zh) * | 2017-10-31 | 2020-12-18 | 江苏西玉钻石科技有限公司 | 无压机分球式超高压装置用复合传压介质及制备方法 |
WO2019165443A1 (en) * | 2018-02-26 | 2019-08-29 | The Texas A&M University System | Lignin fractionation and fabrication for quality carbon fiber |
CN108611704B (zh) * | 2018-05-21 | 2021-07-06 | 广东工业大学 | 一种纳米碳纤维及其制备方法 |
KR102022914B1 (ko) * | 2018-08-13 | 2019-09-20 | 주식회사 유성텔레콤 | 염소화 폴리염화비닐로부터 형성된 탄소섬유 및 그 제조방법 |
RU2708208C1 (ru) * | 2018-12-20 | 2019-12-04 | Акционерное общество "Научно-исследовательский институт конструкционных материалов на основе графита "НИИграфит" | Способ обработки частично-карбонизованного углеродного волокнистого материала перед графитацией |
CN112760751B (zh) * | 2021-01-05 | 2022-06-03 | 大连工业大学 | 一种孔径可控的自活化木质素基微纳米活性碳纤维的制备方法 |
CA3209892A1 (en) * | 2021-03-05 | 2022-09-09 | Graham Dick | Use of ketoacids for lignin stabilization during extraction from lignocellulosic biomass |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1359769A (en) * | 1920-11-23 | tillinghast | ||
US3305315A (en) * | 1962-09-20 | 1967-02-21 | Union Carbide Corp | Process for manufacturing flexible carbonaceous textile material |
GB1111299A (en) * | 1964-10-10 | 1968-04-24 | Nippon Kayaku Kk | Method of producing carbonized material |
BE757620A (fr) * | 1969-10-17 | 1971-04-16 | Bayer Ag | Procede de preparation de fibres de carbone |
US3716331A (en) * | 1970-04-10 | 1973-02-13 | Union Carbide Corp | Process for producing carbon fibers having a high young's modulus of elasticity |
GB1358164A (en) * | 1970-07-30 | 1974-06-26 | Gb Tools Components Exports Lt | Manufacture of carbon fibre |
GB1366131A (en) * | 1971-01-08 | 1974-09-11 | Coal Industry Patents Ltd | Fibres filaments and films consisting of carbon |
GB1359769A (en) * | 1972-05-01 | 1974-07-10 | Bach Auricon Inc | Motion picture camera counterbalancing means |
JPS62110922A (ja) * | 1985-11-05 | 1987-05-22 | Norin Suisansyo Ringyo Shikenjo | リグニン炭素繊維の製造法 |
JP2598668B2 (ja) * | 1988-03-16 | 1997-04-09 | 株式会社日本紙パルプ研究所 | リグニン繊維の製造方法 |
US5344921A (en) * | 1988-06-06 | 1994-09-06 | Forestry And Forest Products Research Institute, Ministry Of Agriculture, Forestry And Fisheries | Method for manufacturing lignin for carbon fiber spinning |
CN1031394C (zh) * | 1990-06-13 | 1996-03-27 | 李孝忠 | 一种制造活性碳纤维的工艺方法 |
ZA935559B (en) * | 1992-08-17 | 1994-03-02 | Enerkom Pty Ltd | Production of carbon fibre |
CN1113978A (zh) * | 1994-06-06 | 1995-12-27 | 杜海峰 | 活性碳纤维的制造方法 |
TW459075B (en) | 1996-05-24 | 2001-10-11 | Toray Ind Co Ltd | Carbon fiber, acrylic fiber and preparation thereof |
US5843393A (en) | 1997-07-28 | 1998-12-01 | Motorola, Inc. | Carbon electrode material for electrochemical cells and method of making same |
US20030187102A1 (en) | 1997-09-02 | 2003-10-02 | Marshall Medoff | Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same |
US7794824B2 (en) * | 2007-06-25 | 2010-09-14 | Weyerhaeuser Nr Company | Carbon fibers from kraft softwood lignin |
TW201031692A (en) | 2009-01-15 | 2010-09-01 | Toho Tenax Europe Gmbh | Lignin derivative, shaped body comprising the derivative and carbon fibres produced from the shaped body |
JP2010242248A (ja) * | 2009-04-03 | 2010-10-28 | Teijin Ltd | 超微細炭素繊維の製造方法 |
CN101768799B (zh) | 2010-01-29 | 2012-10-31 | 华南理工大学 | 一种木质素纳米碳纤维及其制备方法 |
EP2536780A4 (en) * | 2010-02-15 | 2013-11-13 | Lignol Innovations Ltd | CARBON FIBER COMPOSITIONS CONTAINING LIGNIN DERIVATIVES |
KR101194008B1 (ko) * | 2010-04-19 | 2012-10-24 | 전남대학교산학협력단 | 탄소섬유용 리그닌계 복합프리커서 및 상기 프리커서를 이용한 리그닌계 탄소섬유 제조방법 |
KR20130117776A (ko) * | 2010-09-23 | 2013-10-28 | 토호 테낙스 오이로페 게엠베하 | 탄소 섬유의 제조를 위한 열가소성 리그닌 |
EP2524980A1 (de) * | 2011-05-18 | 2012-11-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung ligninhaltiger Precursorfasern sowie Carbonfasern |
-
2012
- 2012-12-13 TW TW101147115A patent/TWI589741B/zh active
-
2013
- 2013-01-16 UY UY0001034577A patent/UY34577A/es not_active Application Discontinuation
- 2013-01-18 AR ARP130100164A patent/AR089759A1/es active IP Right Grant
- 2013-01-21 EP EP13741067.6A patent/EP2807294B1/en active Active
- 2013-01-21 RU RU2014134453A patent/RU2628959C2/ru active
- 2013-01-21 KR KR1020147023289A patent/KR101938444B1/ko active IP Right Grant
- 2013-01-21 MX MX2014008876A patent/MX355703B/es active IP Right Grant
- 2013-01-21 BR BR112014016461-4A patent/BR112014016461B1/pt active IP Right Grant
- 2013-01-21 WO PCT/SE2013/050039 patent/WO2013112100A1/en active Application Filing
- 2013-01-21 IN IN6637DEN2014 patent/IN2014DN06637A/en unknown
- 2013-01-21 CN CN201380006186.5A patent/CN104114756B/zh active Active
- 2013-01-21 JP JP2014553277A patent/JP6161631B2/ja active Active
- 2013-01-21 AU AU2013212731A patent/AU2013212731B2/en active Active
- 2013-01-21 CA CA2861172A patent/CA2861172C/en active Active
- 2013-01-21 US US14/373,887 patent/US11286582B2/en active Active
-
2014
- 2014-07-15 ZA ZA2014/05182A patent/ZA201405182B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU2013212731A1 (en) | 2014-07-17 |
EP2807294A1 (en) | 2014-12-03 |
AU2013212731B2 (en) | 2017-02-23 |
WO2013112100A1 (en) | 2013-08-01 |
UY34577A (es) | 2013-09-02 |
TWI589741B (zh) | 2017-07-01 |
JP2015508128A (ja) | 2015-03-16 |
CA2861172A1 (en) | 2013-08-01 |
CN104114756A (zh) | 2014-10-22 |
CN104114756B (zh) | 2017-08-15 |
CA2861172C (en) | 2021-03-09 |
TW201335452A (zh) | 2013-09-01 |
JP6161631B2 (ja) | 2017-07-12 |
IN2014DN06637A (es) | 2015-05-22 |
KR101938444B1 (ko) | 2019-01-14 |
BR112014016461A8 (pt) | 2017-07-04 |
RU2628959C2 (ru) | 2017-08-23 |
KR20140123078A (ko) | 2014-10-21 |
BR112014016461B1 (pt) | 2021-03-02 |
BR112014016461A2 (pt) | 2017-06-13 |
EP2807294B1 (en) | 2019-02-27 |
US20140353861A1 (en) | 2014-12-04 |
US11286582B2 (en) | 2022-03-29 |
ZA201405182B (en) | 2016-10-26 |
AR089759A1 (es) | 2014-09-17 |
RU2014134453A (ru) | 2016-03-20 |
MX2014008876A (es) | 2014-11-10 |
EP2807294A4 (en) | 2015-09-02 |
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