EP 0697941 A1 19960228 - PROCESS FOR RECOVERING CHIPS AND FIBRES FROM RESIDUES OF TIMBER-DERIVED MATERIALS, OLD PIECES OF FURNITURE, PRODUCTION RESIDUES, WASTE AND OTHER TIMBER-CONTAINING MATERIALS
Title (en)
PROCESS FOR RECOVERING CHIPS AND FIBRES FROM RESIDUES OF TIMBER-DERIVED MATERIALS, OLD PIECES OF FURNITURE, PRODUCTION RESIDUES, WASTE AND OTHER TIMBER-CONTAINING MATERIALS
Title (de)
VERFAHREN ZUR WIEDERGEWINNUNG VON SPÄNEN UND FASERN AUS HOLZWERKSTOFFRESTSTÜCKEN, ALTMÖBELN, PRODUKTIONSRÜCKSTÄNDEN, ABFÄLLEN UND ANDEREN HOLZWERKSTOFFHALTIGEN MATERIALIEN
Title (fr)
PROCEDE DE RECUPERATION DE COPEAUX ET DE FIBRES PAR DESAGREGATION DE RESIDUS DE MATERIAUX DERIVES DU BOIS, DE VIEUX MEUBLES, DE RESIDUS DE PRODUCTION, DE DECHETS ET D'AUTRES MATERIAUX CONTENANT DES MATERIAUX DERIVES DU BOIS
Publication
Application
Priority
- DE 9500360 W 19950314
- DE 4408788 A 19940315
Abstract (en)
[origin: US5804035A] PCT No. PCT/DE95/00360 Sec. 371 Date Jan. 26, 1996 Sec. 102(e) Date Jan. 26, 1996 PCT Filed Mar. 14, 1995 PCT Pub. No. WO95/24998 PCT Pub. Date Sep. 21, 1995A process is dislcosed for recovering chips and fibers from residues of timber-derived materials, old pieces of furniture, production residues, water and other timber-containing materials glued with urea-formaldehyde binders or other binders capable of being hydrolysed or chemically disintegrated by disintegrating the timber-derived materials at a high temperature. In a first step of the process, the residues of timber-derived materials are impregnated with an impregnating solution and previously swollen until they have absorbed at least 50% of their own weight of impregnating solution. In a second step, the thus impregnated residues of timber-derived materials are heated up to 80 DEG C. to 120 DEG C. The thus disintegrated residues of timber-derived materials are then sorted by sieving and/or wind screening. The residues of timber-derived material have edges of at least 10 to 20 cm length. In an improved of the invention, the residues of timber derived materials are impregnated and heated at the same time.
IPC 1-7
IPC 8 full level
B27L 11/08 (2006.01); B27N 1/00 (2006.01); B27N 3/00 (2006.01)
CPC (source: EP KR US)
B27N 1/00 (2013.01 - EP US); B27N 1/003 (2013.01 - KR); B27N 3/007 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 5804035 A 19980908; AT E157298 T1 19970915; CA 2162894 A1 19950921; CA 2162894 C 20031209; DE 19509152 A1 19951026; DE 59500559 D1 19971002; DK 0697941 T3 19980420; DK 0697941 T4 20021104; EP 0697941 A1 19960228; EP 0697941 B1 19970827; EP 0697941 B2 20020717; ES 2107311 T3 19971116; ES 2107311 T5 20030216; GR 3025090 T3 19980130; JP 3609414 B2 20050112; JP H08510419 A 19961105; KR 100353308 B1 20021228; KR 960702376 A 19960427; WO 9524998 A1 19950921
DOCDB simple family (application)
US 55324596 A 19960126; AT 95913030 T 19950314; CA 2162894 A 19950314; DE 19509152 A 19950314; DE 59500559 T 19950314; DE 9500360 W 19950314; DK 95913030 T 19950314; EP 95913030 A 19950314; ES 95913030 T 19950314; GR 970402731 T 19971020; JP 52378295 A 19950314; KR 19950705107 A 19951115