MX355707B - Proceso de purificacion para celulosa parcialmente hidrolizada. - Google Patents
Proceso de purificacion para celulosa parcialmente hidrolizada.Info
- Publication number
- MX355707B MX355707B MX2015002187A MX2015002187A MX355707B MX 355707 B MX355707 B MX 355707B MX 2015002187 A MX2015002187 A MX 2015002187A MX 2015002187 A MX2015002187 A MX 2015002187A MX 355707 B MX355707 B MX 355707B
- Authority
- MX
- Mexico
- Prior art keywords
- partly
- hydrolyzed cellulose
- composition
- acid
- precipitate
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate pulp
-
- 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
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
-
- 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
- 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
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
Abstract
Un método para recuperar celulosa parcialmente hidrolizada purificada (36) de una composición (14) que comprende celulosa parcialmente hidrolizada y un ácido, como ácido sulfúrico. Una base (28) que tiene un catión que forma un precipitado con el anión del ácido se añade a la composición. Por ejemplo, una base como hidróxido de bario se añade para formar un precipitado de sulfato. El precipitado (38) a continuación se separa de la celulosa parcialmente hidrolizada (36), reduciendo así su contenido de ácido. El método puede incluir los pasos adicionales de centrifugación (18) de la composición, rompimiento de las aglomeraciones (44) en la composición después de la precipitación y diálisis (42).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2012/050575 WO2014029001A1 (en) | 2012-08-21 | 2012-08-21 | Purification process for partly-hydrolyzed cellulose |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2015002187A MX2015002187A (es) | 2015-05-07 |
MX355707B true MX355707B (es) | 2018-04-27 |
Family
ID=50149305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2015002187A MX355707B (es) | 2012-08-21 | 2012-08-21 | Proceso de purificacion para celulosa parcialmente hidrolizada. |
Country Status (7)
Country | Link |
---|---|
US (1) | US9567707B2 (es) |
CN (1) | CN104603356B (es) |
AU (1) | AU2012388204A1 (es) |
BR (1) | BR112015003154B1 (es) |
CA (1) | CA2879552C (es) |
MX (1) | MX355707B (es) |
WO (1) | WO2014029001A1 (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10016726B2 (en) | 2014-02-28 | 2018-07-10 | Noram Engineering And Constructors Ltd. | Purification process for partly-hydrolyzed cellulose |
EP3006468A1 (en) * | 2014-10-10 | 2016-04-13 | Technische Universität München | Nanocrystalline cellulose, its preparation and uses of such nanocrystalline cellulose |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5629055A (en) | 1994-02-14 | 1997-05-13 | Pulp And Paper Research Institute Of Canada | Solidified liquid crystals of cellulose with optically variable properties |
CN1141321C (zh) * | 2001-09-30 | 2004-03-10 | 中国科学院广州化学研究所 | 酸水解制备纳米晶体纤维素的方法 |
US20050239744A1 (en) * | 2004-04-22 | 2005-10-27 | Michael Ioelovich | Method of producing microcrystalline cellulose-containing compositions |
ES2536743T3 (es) * | 2008-12-11 | 2015-05-28 | Fpinnovations | Celulosa nanocristalina seca redispersable |
ES2606166T3 (es) * | 2009-08-11 | 2017-03-23 | Fpinnovations | Fraccionamiento de una corriente de licor residual de la producción de celulosa nanocristalina |
CN102080346B (zh) * | 2010-11-25 | 2011-12-28 | 山东轻工业学院 | 阳离子纳米微晶纤维素作为纸张增强剂的应用 |
CN102093484B (zh) * | 2010-12-31 | 2012-11-07 | 福建农林大学 | 一种ZnCl2解离制备纳米晶体纤维素的方法 |
-
2012
- 2012-08-21 WO PCT/CA2012/050575 patent/WO2014029001A1/en active Application Filing
- 2012-08-21 BR BR112015003154-4A patent/BR112015003154B1/pt active IP Right Grant
- 2012-08-21 US US14/422,619 patent/US9567707B2/en active Active
- 2012-08-21 AU AU2012388204A patent/AU2012388204A1/en not_active Abandoned
- 2012-08-21 CA CA2879552A patent/CA2879552C/en active Active
- 2012-08-21 MX MX2015002187A patent/MX355707B/es active IP Right Grant
- 2012-08-21 CN CN201280075278.4A patent/CN104603356B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
BR112015003154B1 (pt) | 2021-01-12 |
US20150233056A1 (en) | 2015-08-20 |
BR112015003154A2 (pt) | 2017-07-04 |
CN104603356A (zh) | 2015-05-06 |
CA2879552C (en) | 2019-02-19 |
WO2014029001A1 (en) | 2014-02-27 |
US9567707B2 (en) | 2017-02-14 |
MX2015002187A (es) | 2015-05-07 |
CA2879552A1 (en) | 2014-02-27 |
CN104603356B (zh) | 2017-08-18 |
AU2012388204A1 (en) | 2015-02-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration |