EP1284845A1 - Verfahren zur herstellung einer bindemittelflotte - Google Patents
Verfahren zur herstellung einer bindemittelflotteInfo
- Publication number
- EP1284845A1 EP1284845A1 EP01913696A EP01913696A EP1284845A1 EP 1284845 A1 EP1284845 A1 EP 1284845A1 EP 01913696 A EP01913696 A EP 01913696A EP 01913696 A EP01913696 A EP 01913696A EP 1284845 A1 EP1284845 A1 EP 1284845A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wood
- binder
- waste water
- tannin
- fiberboard
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
Definitions
- the invention relates to a method for producing a binder liquor for wood-to-wood bonds from powdered binders or binder components which are brought into solution in a liquid.
- Wood Materials such as chipboard and fiberboard are produced by gluing wood chips or fibers with a binder and then drying them if necessary, sprinkling them into chip or fiber mats and then pressing them hot.
- Aminoplast resins such as urea and urea elamine-formaldehyde resins, phenol formaldehyde resins and adhesives based on polymeric diisocyanates are generally used as binders in the wood-based panel industry. To a small extent, tannin formaldehyde resins and starches in unmodified and modified form are also used as binders.
- Other binders based on renewable raw materials are lignins, proteins and carbohydrates, which are mainly used on their own or in combination with other binders in special plate types.
- the binders are mainly used in the wood-based materials as an aqueous glue liquor in the consistency range between 40-60%.
- powdered binders are processed either as an aqueous solution by the binder manufacturer or in the chip or fiberboard factories.
- the binders based on renewable raw materials are mainly delivered as powder to the particleboard and fiberboard plants, where they are dissolved in water and brought to the desired consistency.
- Additives can be added during the production of the binder liquor and the pH can be adjusted to the desired level.
- the invention is based on the object of producing a binder liquor which reduces water absorption and thickness swelling in wood-to-wood bonds, in particular in chipboard and fiberboard, in comparison to the products produced with conventional binder liquors.
- this object is achieved according to the invention in that wastewater used in the production of wood-based materials such as chipboard and fiberboard is used as the liquid.
- Waste water is to be understood primarily as the condensates that occur during the drying of wood chips and wood fibers, the waste water that arises in the manufacture of fiberboard using the wet process, and the squeeze water that occurs in the manufacture of fiberboard using the dry process.
- the squeeze water that occurs in large quantities in the production of medium-density fiberboard has a high chemical and biological oxygen demand, and therefore cannot be led into the drains and therefore requires special disposal.
- this waste water can be used directly in a recycling process for the production of binder liquors, the use of (pure) water being able to be dispensed with entirely.
- Further advantages are low swellings in thickness and water absorption, without adversely affecting the bending and transverse tensile strength of the plates produced with a binder liquor according to the invention.
- Tannin, starch, lignin, protein and mixtures thereof can be used as binders. It is expedient if the tannin to be used is obtained by extracting bark or wood with waste water from the wood-based materials industry.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Peptides Or Proteins (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Saccharide Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Compounds Of Unknown Constitution (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10021952A DE10021952A1 (de) | 2000-05-05 | 2000-05-05 | Verfahren zur Herstellung einer Bindemittelflotte |
DE10021952 | 2000-05-05 | ||
PCT/DE2001/000650 WO2001085411A1 (de) | 2000-05-05 | 2001-02-20 | Verfahren zur herstellung einer bindemittelflotte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1284845A1 true EP1284845A1 (de) | 2003-02-26 |
EP1284845B1 EP1284845B1 (de) | 2003-08-27 |
Family
ID=7640916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01913696A Expired - Lifetime EP1284845B1 (de) | 2000-05-05 | 2001-02-20 | Verfahren zur herstellung einer bindemittelflotte |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1284845B1 (de) |
AT (1) | ATE248049T1 (de) |
DE (2) | DE10021952A1 (de) |
PT (1) | PT1284845E (de) |
WO (1) | WO2001085411A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10260966A1 (de) * | 2002-12-20 | 2004-07-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung einer Bindemittelflotte sowie deren Verwendung |
DE102009042595A1 (de) * | 2009-09-24 | 2011-03-31 | Braun, Peter Marco | Verfahren zur Herstellung von Formteilen |
CN105082301B (zh) * | 2015-05-05 | 2017-12-29 | 孙建民 | 一种仿生原木制品的材料组合物工艺配方 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD115453A5 (de) * | 1974-11-26 | 1975-10-05 | ||
AT378166B (de) * | 1979-03-23 | 1985-06-25 | Uniprojekt Projektova Inzenyrs | Verfahren zur verhinderung der kondensation von klebstoffmischungen |
SU814775A1 (ru) * | 1979-10-08 | 1981-03-23 | Белорусский Технологический Институтим.C.M.Кирова | Состав дл изготовлени древесно- ВОлОКНиСТыХ плиТ |
US4433126A (en) * | 1981-12-28 | 1984-02-21 | Masonite Corporation | Modified phenol-formaldehyde resin and the production thereof |
DD226276A1 (de) * | 1984-07-24 | 1985-08-21 | Sprela Werke Spremberg Veb | Verfahren zur rueckgewinnung von rohstoffen aus abwaessern |
DE3914146A1 (de) * | 1989-04-28 | 1990-10-31 | Baehre & Greten | Verfahren zur beseitigung von im bereich der leimaufbereitung und leimdosierung bei reinigungsvorgaengen anfallendem abwasser im zuge der herstellung von holzspanplatten oder dergleichen |
US5000788A (en) * | 1990-04-12 | 1991-03-19 | Sprout-Bauer, Inc. | Method for preparing starch based corrugating adhesives using waste wash water |
DE4030718A1 (de) * | 1990-09-28 | 1992-04-02 | Univ Dresden Tech | Verfahren zur herstellung eines bindemittels auf ligninbasis |
FR2715411B1 (fr) * | 1994-01-24 | 1996-04-26 | Celta | Matériau compact résistant à l'eau et repulpable, à base de matériaux cellulosiques broyés, et son procédé de fabrication. |
-
2000
- 2000-05-05 DE DE10021952A patent/DE10021952A1/de not_active Withdrawn
-
2001
- 2001-02-20 PT PT01913696T patent/PT1284845E/pt unknown
- 2001-02-20 EP EP01913696A patent/EP1284845B1/de not_active Expired - Lifetime
- 2001-02-20 AT AT01913696T patent/ATE248049T1/de not_active IP Right Cessation
- 2001-02-20 WO PCT/DE2001/000650 patent/WO2001085411A1/de active IP Right Grant
- 2001-02-20 DE DE50100561T patent/DE50100561D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0185411A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE50100561D1 (de) | 2003-10-02 |
ATE248049T1 (de) | 2003-09-15 |
WO2001085411A1 (de) | 2001-11-15 |
PT1284845E (pt) | 2003-12-31 |
EP1284845B1 (de) | 2003-08-27 |
DE10021952A1 (de) | 2001-11-22 |
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