EP 3487596 A1 20190529 - METHOD AND SYSTEM FOR RECOVERING MAGNETIC GRAINS FROM SINTERED MAGNETS OR PLASTIC MAGNETS
Title (en)
METHOD AND SYSTEM FOR RECOVERING MAGNETIC GRAINS FROM SINTERED MAGNETS OR PLASTIC MAGNETS
Title (de)
VERFAHREN UND SYSTEM ZUR RÜCKGEWINNUNG VON MAGNETISCHEN KÖRNERN AUS GESINTERTEN MAGNETEN ODER PLASTISCHEN MAGNETEN
Title (fr)
PROCEDE ET SYSTEME POUR RECUPERER DES GRAINS MAGNETIQUES D'AIMANTS FRITTES OU DE PLASTO-AIMANTS
Publication
Application
Priority
- FR 1656962 A 20160721
- EP 2017067985 W 20170717
Abstract (en)
[origin: WO2018015331A1] The invention concerns a method and a device for retrieving, from an object A, elements G present in a matrix M, characterised in that it comprises at least the following steps: bringing said object A into contact with a dense fluid Fd with a molar mass greater than 2 g mol-1 under temperature T1 and pressure P1 conditions suitable for transforming the intergranular phase and for releasing the elements G, (302), modifying the temperature T2 and/or pressure P2 values to stop the reaction transforming the intergranular phase, (303), and recovering the elements G separated from the matrix M (304).
IPC 8 full level
B01D 11/02 (2006.01); B09B 3/00 (2006.01); C22B 7/00 (2006.01); C22B 59/00 (2006.01)
CPC (source: EP US)
B01D 11/02 (2013.01 - EP US); B01D 11/0207 (2013.01 - US); B01D 11/0288 (2013.01 - US); B09B 3/80 (2022.01 - US); C22B 7/006 (2013.01 - EP US); C22B 59/00 (2013.01 - EP US); H01F 1/0577 (2013.01 - US); H01F 41/0253 (2013.01 - EP US); Y02P 10/20 (2015.11 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018015331 A1 20180125; CN 109641159 A 20190416; CN 109641159 B 20221104; EP 3487596 A1 20190529; FR 3054145 A1 20180126; FR 3054145 B1 20180831; JP 2019523134 A 20190822; JP 7032399 B2 20220308; US 11685964 B2 20230627; US 2019226052 A1 20190725; US 2023272505 A1 20230831
DOCDB simple family (application)
EP 2017067985 W 20170717; CN 201780044461 A 20170717; EP 17746410 A 20170717; FR 1656962 A 20160721; JP 2019524513 A 20170717; US 201716318490 A 20170717; US 202318313511 A 20230508