DK0581039T3 - Process for recycling wood materials - Google Patents

Process for recycling wood materials

Info

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
Application number
DK93110483.0T
Other languages
Danish (da)
Original Assignee
Pfleiderer Unternehmensverwalt
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pfleiderer Unternehmensverwalt filed Critical Pfleiderer Unternehmensverwalt
Application granted granted Critical
Publication of DK0581039T3 publication Critical patent/DK0581039T3/en

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

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.
DK93110483.0T 1992-07-25 1993-07-01 Process for recycling wood materials DK0581039T3 (en)

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)

* Cited by examiner, † Cited by third party
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
US5804035A (en) * 1994-03-15 1998-09-08 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Process for recovering chips and fibers from residues of timber-derived materials, old pieces of furniture, production residues, waste and other timber containing materials
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
AT1541U1 (en) * 1996-08-27 1997-07-25 Funder Ind Ges M B H METHOD FOR TREATING FIBER PANEL WASTE
AT405038B (en) * 1996-08-27 1999-04-26 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
EP4395945A1 (en) 2021-08-31 2024-07-10 Unilin, BV Process for the production of wood fiberboard

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE4224629A1 (en) 1994-01-27
DE4244918C2 (en) 1997-05-22
ATE123247T1 (en) 1995-06-15
DE59300233D1 (en) 1995-07-06
EP0581039A1 (en) 1994-02-02
EP0581039B1 (en) 1995-05-31

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