CA2573211C - Methode de traitement de matiere ligno-cellulosique - Google Patents
Methode de traitement de matiere ligno-cellulosique Download PDFInfo
- Publication number
- CA2573211C CA2573211C CA2573211A CA2573211A CA2573211C CA 2573211 C CA2573211 C CA 2573211C CA 2573211 A CA2573211 A CA 2573211A CA 2573211 A CA2573211 A CA 2573211A CA 2573211 C CA2573211 C CA 2573211C
- Authority
- CA
- Canada
- Prior art keywords
- wood
- lignocellulosic material
- heat
- preservative
- water
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 239000012978 lignocellulosic material Substances 0.000 title claims abstract description 33
- 239000003755 preservative agent Substances 0.000 claims abstract description 69
- 230000002335 preservative effect Effects 0.000 claims abstract description 58
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002023 wood Substances 0.000 claims description 110
- 238000001035 drying Methods 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 5
- 150000001642 boronic acid derivatives Chemical group 0.000 claims description 4
- 239000010876 untreated wood Substances 0.000 claims description 4
- RDMZIKMKSGCBKK-UHFFFAOYSA-N disodium;(9,11-dioxido-5-oxoboranyloxy-2,4,6,8,10,12,13-heptaoxa-1,3,5,7,9,11-hexaborabicyclo[5.5.1]tridecan-3-yl)oxy-oxoborane;tetrahydrate Chemical compound O.O.O.O.[Na+].[Na+].O1B(OB=O)OB(OB=O)OB2OB([O-])OB([O-])OB1O2 RDMZIKMKSGCBKK-UHFFFAOYSA-N 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 29
- 238000012986 modification Methods 0.000 abstract description 16
- 230000004048 modification Effects 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 13
- 210000003850 cellular structure Anatomy 0.000 abstract description 8
- 210000004027 cell Anatomy 0.000 abstract description 4
- 230000003834 intracellular effect Effects 0.000 abstract description 4
- 238000002386 leaching Methods 0.000 description 15
- 230000035515 penetration Effects 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000010875 treated wood Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 241000233866 Fungi Species 0.000 description 4
- 241000238631 Hexapoda Species 0.000 description 4
- 241000256602 Isoptera Species 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000254173 Coleoptera Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 229940000489 arsenate Drugs 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000003171 wood protecting agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0271—Vapour phase impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0278—Processes; Apparatus involving an additional treatment during or after impregnation
- B27K3/0285—Processes; Apparatus involving an additional treatment during or after impregnation for improving the penetration of the impregnating fluid
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Une méthode de traitement thermique de matière ligno-cellulosique comportant un agent de conservation hydrosoluble, comme préférablement le borate, comprend la modification de matière ligno-cellulosique en chauffant un contenu humide de 0 à 5 %, et préférablement aussi proche que possible de 0 %. Le traitement thermique de la matière ligno-cellulosique élimine non seulement l'eau extracellulaire, mais également l'eau intercellulaire et l'eau intracellulaire. Le procédé de modification par traitement thermique tue efficacement les cellules, en modifiant leur structure cellulaire de manière permanente et en bloquant ou en fixant l'agent de conservation dans la matière ligno-cellulosique de sorte que l'agent de conservation hydrosoluble ne lessive pas la matière ligno-cellulosique traitée en présence d'eau de pluie.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2573211A CA2573211C (fr) | 2007-01-05 | 2007-01-05 | Methode de traitement de matiere ligno-cellulosique |
| PCT/CA2007/002253 WO2008080216A1 (fr) | 2007-01-05 | 2007-12-17 | Procédé de traitement de matière lignocellulosique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2573211A CA2573211C (fr) | 2007-01-05 | 2007-01-05 | Methode de traitement de matiere ligno-cellulosique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2573211A1 CA2573211A1 (fr) | 2008-07-05 |
| CA2573211C true CA2573211C (fr) | 2013-05-21 |
Family
ID=39580529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2573211A Expired - Fee Related CA2573211C (fr) | 2007-01-05 | 2007-01-05 | Methode de traitement de matiere ligno-cellulosique |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2573211C (fr) |
| WO (1) | WO2008080216A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017190209A1 (fr) * | 2016-05-04 | 2017-11-09 | Jacques Roy | Unité intégrée de traitement et de séchage de matériau lignocellulosique |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2786426B1 (fr) * | 1998-11-27 | 2002-01-25 | Arimpex Sarl | Procede de traitement thermique d'un materiau ligno-cellulosique avec elimination de l'oxygene en phase gazeuse |
| US7754284B2 (en) * | 2004-07-15 | 2010-07-13 | Jacques Roy | Method for treating lignocellulosic material |
-
2007
- 2007-01-05 CA CA2573211A patent/CA2573211C/fr not_active Expired - Fee Related
- 2007-12-17 WO PCT/CA2007/002253 patent/WO2008080216A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CA2573211A1 (fr) | 2008-07-05 |
| WO2008080216A1 (fr) | 2008-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20210105 |