CA2313261A1 - Procede de preparation d'une cellulose microcristalline de grande purete, exempte de produits chimiques, a partir d'une cellulose produite chimiquement - Google Patents
Procede de preparation d'une cellulose microcristalline de grande purete, exempte de produits chimiques, a partir d'une cellulose produite chimiquement Download PDFInfo
- Publication number
- CA2313261A1 CA2313261A1 CA002313261A CA2313261A CA2313261A1 CA 2313261 A1 CA2313261 A1 CA 2313261A1 CA 002313261 A CA002313261 A CA 002313261A CA 2313261 A CA2313261 A CA 2313261A CA 2313261 A1 CA2313261 A1 CA 2313261A1
- Authority
- CA
- Canada
- Prior art keywords
- cellulose
- high purity
- microcrystalline cellulose
- pulp
- chemically produced
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 229920000168 Microcrystalline cellulose Polymers 0.000 title abstract 5
- 235000019813 microcrystalline cellulose Nutrition 0.000 title abstract 5
- 239000008108 microcrystalline cellulose Substances 0.000 title abstract 5
- 229940016286 microcrystalline cellulose Drugs 0.000 title abstract 5
- 235000010980 cellulose Nutrition 0.000 title abstract 4
- 229920002678 cellulose Polymers 0.000 title abstract 4
- 239000001913 cellulose Substances 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 abstract 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000005903 acid hydrolysis reaction Methods 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002655 kraft paper Substances 0.000 abstract 1
- 235000016709 nutrition Nutrition 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 238000001665 trituration Methods 0.000 abstract 1
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
- 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
-
- 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
- D21C9/007—Modification of pulp properties by mechanical or physical means
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CA1998/000479 WO1999060027A1 (fr) | 1998-05-14 | 1998-05-14 | Procede de preparation d'une cellulose microcristalline de grande purete, exempte de produits chimiques, a partir d'une cellulose produite chimiquement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2313261A1 true CA2313261A1 (fr) | 1999-11-25 |
| CA2313261C CA2313261C (fr) | 2002-02-12 |
Family
ID=4173298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002313261A Expired - Fee Related CA2313261C (fr) | 1998-05-14 | 1998-05-14 | Procede de preparation d'une cellulose microcristalline de grande purete, exempte de produits chimiques, a partir d'une cellulose produite chimiquement |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1082348A1 (fr) |
| AU (1) | AU7421698A (fr) |
| CA (1) | CA2313261C (fr) |
| WO (1) | WO1999060027A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8710107B2 (en) | 2006-04-05 | 2014-04-29 | Woodland Biofuels Inc. | System and method for converting biomass to ethanol via syngas |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1332255A1 (fr) * | 2000-11-03 | 2003-08-06 | Kemestrie Inc. | Procede de preparation de cellulose microcristalline a degre de polymerisation (dp) faible |
| KR100376203B1 (ko) * | 2000-12-26 | 2003-03-15 | 한국에너지기술연구원 | 황산 및 황산염 첨가물을 이용한 아임계 및 초임계수내에서의 셀룰로오스의 연속분해방법 |
| CA2383279A1 (fr) * | 2002-05-06 | 2003-11-06 | Sylvain Cloutier | Reacteur |
| FI20126168L (fi) * | 2012-11-07 | 2014-05-08 | Metsä Fibre Oy | Menetelmä sellupitoisten kuitujen avaamiseksi |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4461648A (en) * | 1980-07-11 | 1984-07-24 | Patrick Foody | Method for increasing the accessibility of cellulose in lignocellulosic materials, particularly hardwoods agricultural residues and the like |
| CA1198703A (fr) * | 1984-08-02 | 1985-12-31 | Edward A. De Long | Methode de production d'une cellulose microcristalline polymerisee et de glucose a partir de lignocellulose |
| DK0531486T3 (da) * | 1991-02-21 | 2002-07-22 | Genencor Int | Fremgangsmåde til omdannelse af cellulosemateriale til krystallinsk cellulose |
| DE4342442C2 (de) * | 1993-12-13 | 1996-11-21 | Akzo Nobel Nv | Verfahren zur Herstellung von Level-off DP Cellulose (LODP Cellulose) und ihre Desaggregierung zu mikrokristalliner Cellulose |
-
1998
- 1998-05-14 AU AU74216/98A patent/AU7421698A/en not_active Abandoned
- 1998-05-14 CA CA002313261A patent/CA2313261C/fr not_active Expired - Fee Related
- 1998-05-14 WO PCT/CA1998/000479 patent/WO1999060027A1/fr not_active Ceased
- 1998-05-14 EP EP98921305A patent/EP1082348A1/fr not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8710107B2 (en) | 2006-04-05 | 2014-04-29 | Woodland Biofuels Inc. | System and method for converting biomass to ethanol via syngas |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1082348A1 (fr) | 2001-03-14 |
| AU7421698A (en) | 1999-12-06 |
| CA2313261C (fr) | 2002-02-12 |
| WO1999060027A1 (fr) | 1999-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |