DK0581039T3 - Process for recycling wood materials - Google Patents
Process for recycling wood materialsInfo
- Publication number
- DK0581039T3 DK0581039T3 DK93110483.0T DK93110483T DK0581039T3 DK 0581039 T3 DK0581039 T3 DK 0581039T3 DK 93110483 T DK93110483 T DK 93110483T DK 0581039 T3 DK0581039 T3 DK 0581039T3
- Authority
- DK
- Denmark
- Prior art keywords
- urea
- glued
- elements
- pulping
- basic components
- Prior art date
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
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
-
- 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
- B27N1/00—Pretreatment of moulding material
-
- 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
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
Abstract
A method is specified for recycling elements comprising wood-based materials glued with urea-formaldehyde binders, with or without plastic coating, in which method, in a pretreatment step, the elements are broken into small fragments and any metal parts, such as fittings or the like, are separated out, then, in a pulping step, the fragments are subjected to a, preferably saturated, steam atmosphere under high pressure and at high temperature for a specific pulping time and then the material - secondary material - which has then already disintegrated into its fibrous etc. basic components, is glued to form new elements, chemically adapted urea-formaldehyde binders, namely those condensing with the urea residues still adhering to the fibres etc., being used for gluing. There is also the possibility, after the pulping step, of washing, in a cleaning step, the material which has then already disintegrated into its fibrous etc. basic components, under normal pressure, intensively with a cleaning liquid, in particular with clean water, and thus producing a secondary material which is free of adhering urea residues and can be glued using binders suitable for virgin material to form new elements.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4224629A DE4224629A1 (en) | 1992-07-25 | 1992-07-25 | Process for recycling wood-based materials |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0581039T3 true DK0581039T3 (en) | 1995-07-31 |
Family
ID=6464106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK93110483.0T DK0581039T3 (en) | 1992-07-25 | 1993-07-01 | Process for recycling wood materials |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0581039B1 (en) |
AT (1) | ATE123247T1 (en) |
DE (3) | DE4224629A1 (en) |
DK (1) | DK0581039T3 (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4316498C2 (en) * | 1993-05-17 | 2001-03-01 | Lignotock Gmbh | Process for the production of wood fiber molded parts containing binder |
KR100353308B1 (en) * | 1994-03-15 | 2002-12-28 | 프라운호퍼-게젤샤프트 츄어 푀르더룽 데어 안게반텐 포르슝에.파우. | Methods for reproducing sawdust and fiber from materials, including small pieces of wood, used furniture, residues of wood products, wood waste and other wood |
DE4428119A1 (en) * | 1994-08-09 | 1996-02-15 | Roffael Edmone Prof Dr Ing | Process for the production of chipboard and fiberboard |
DE19619792A1 (en) * | 1996-05-15 | 1997-11-20 | Andreas Mohr | Recycling method of old wood from building timbers treated with protective substances |
AT405038B (en) * | 1996-08-27 | 1999-04-26 | Funder Ind Ges M B H | METHOD FOR TREATING FIBER PANEL WASTE |
AT1541U1 (en) * | 1996-08-27 | 1997-07-25 | Funder Ind Ges M B H | METHOD FOR TREATING FIBER PANEL WASTE |
DE19640503C1 (en) * | 1996-10-01 | 1998-05-20 | Formaplan Holzwerkstoffe Gmbh | Secondary chip and fibre recovery process |
DE19653067A1 (en) * | 1996-11-25 | 1998-06-04 | Nolte Gmbh & Co Kg Spanplatten | Recovery and recycling method of timber material chips |
DE19751326C2 (en) * | 1997-11-19 | 2001-01-04 | Pfleiderer Unternehmensverwalt | Process for the production of wood materials using used, residual and waste wood materials |
DE19858979B4 (en) * | 1998-12-19 | 2004-01-29 | Pfleiderer Unternehmensverwaltung Gmbh & Co Kg | Culture substrate and method for growing wood-decomposing fungi, which can be used as edible mushrooms or pharmacologically, for the production of the substrate, and the use thereof |
GB9928554D0 (en) * | 1999-12-02 | 2000-02-02 | Enigma Nv | Production of high added value products from wastes |
DE10004292C1 (en) * | 2000-02-01 | 2001-08-02 | Messer Griesheim Gmbh | Process for recycling wood with a plastic coating |
DE10124717A1 (en) | 2001-05-19 | 2002-11-21 | Rolf Hesch | Process to recycle furniture and automotive residues by mechanical shredding and pneumatic sorting |
DE10216954B4 (en) * | 2002-04-17 | 2004-10-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for the recovery of chips and fibers from wood material residues and plant for the further treatment of the chips obtained by digestion |
DE10320686B4 (en) * | 2003-04-30 | 2015-02-05 | Faurecia Innenraum Systeme Gmbh | Process for the production of molded body base material |
BE1016044A5 (en) * | 2003-07-14 | 2006-02-07 | Beologic Nv | METHOD FOR MANUFACTURING A FORM BODY AND FORM BODY |
FR2963257B1 (en) | 2010-07-29 | 2014-06-06 | Cie Continentale Simmons | METHOD FOR SANITIZING MATERIALS FROM THE RECYCLING OF FURNITURE, IN PARTICULAR MATTRESSES, SOMMIERS AND SEATS. |
DE202017103956U1 (en) | 2017-07-03 | 2017-09-13 | Kronospan Luxembourg S.A. | OSB board and device for producing an OSB board |
DE102018213210A1 (en) * | 2018-08-07 | 2020-02-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for cleaning mineral solids and wood materials, device for this process and its use |
SE544802C2 (en) * | 2019-12-03 | 2022-11-22 | Ikea Supply Ag | Recycling of lignocellulosic fibers from fiberboards |
BE1028121B1 (en) | 2020-03-03 | 2021-10-06 | Unilin | PROCESS FOR THE PRODUCTION OF CHIPBOARD OR WOOD FIBERBOARD |
CN111922033A (en) * | 2020-07-10 | 2020-11-13 | 张小婷 | Printing is with tearing open page or leaf machine |
SE2051303A1 (en) * | 2020-11-09 | 2022-05-10 | Ikea Supply Ag | Apparatus for recycling of lignocellulosic fibers from fiberboards |
BE1029722B1 (en) | 2021-08-31 | 2023-03-28 | Flooring Ind Ltd Sarl | Process for the production of fiberboard |
CA3226768A1 (en) | 2021-08-31 | 2023-03-09 | Geert Coudenys | Process for the production of wood fiberboard |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE630805A (en) * | ||||
DE1201045B (en) * | 1962-04-09 | 1965-09-16 | Alf Goeran Sandberg | Process for the recovery of chip material from waste, sawdust, gauze, etc., interspersed with hardened binding agents, for the production of chipboard and similar glued or pressed products |
-
1992
- 1992-07-25 DE DE4224629A patent/DE4224629A1/en not_active Ceased
- 1992-07-25 DE DE4244918A patent/DE4244918C2/en not_active Expired - Fee Related
-
1993
- 1993-07-01 AT AT93110483T patent/ATE123247T1/en not_active IP Right Cessation
- 1993-07-01 DK DK93110483.0T patent/DK0581039T3/en active
- 1993-07-01 EP EP93110483A patent/EP0581039B1/en not_active Expired - Lifetime
- 1993-07-01 DE DE59300233T patent/DE59300233D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE123247T1 (en) | 1995-06-15 |
EP0581039A1 (en) | 1994-02-02 |
DE4224629A1 (en) | 1994-01-27 |
DE4244918C2 (en) | 1997-05-22 |
EP0581039B1 (en) | 1995-05-31 |
DE59300233D1 (en) | 1995-07-06 |
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