Global Patent Index - EP 1086255 A1

EP 1086255 A1 2001-03-28 - METHOD FOR CONTINUOUS SEPARATION OF IMPURITIES AND ALLOYINGS FROM LIQUID METAL BATHS AND DEVICE FOR IMPLEMENTING SAID METHOD

Title (en)

METHOD FOR CONTINUOUS SEPARATION OF IMPURITIES AND ALLOYINGS FROM LIQUID METAL BATHS AND DEVICE FOR IMPLEMENTING SAID METHOD

Title (de)

VERFAHREN ZUM KONTINUIERLICHEN ABTRENNEN VON VERUNREINIGUNGEN UND LEGIERUNGEN AUS FLÜSSIGEN METALLBÄDERN SOWIE VORRICHTUNG ZUR DURCHFÜHRUNG DIESES VERFAHRENS

Title (fr)

PROCEDE DE SEPARATION CONTINUE D'IMPURETES ET D'ALLIAGES DE BAINS METALLIQUES LIQUIDES ET DISPOSITIF PERMETTANT DE METTRE EN OEUVRE CE PROCEDE

Publication

EP 1086255 A1 (DE)

Application

EP 99920449 A

Priority

  • AT 9900120 W
  • AT 83698 A

Abstract (en)

[origin: WO9960177A1] The invention relates to a method for continuous separation of impurities and alloyings from liquid metal baths, e.g. iron-aluminum alloys, zinc oxides or mixed crystals from zinc baths, wherein liquid metal is extracted from the area close to the surface of the bath, the extracted metal bath is centrifuged and the centrifugate containing the pure metal is fed back into the metal bath. A device for implementing the inventive method comprises a flow-off (26) that can be dipped beneath the surface of the bath (27) and into which a conveyor or a pump (28) can be immersed. A thermal insulated and/or heatable centrifuge (32) is attached to the conveyor or the pump (28) with the purpose of separating at least a light or at least a heavy free-flowing phase, whereby the discharge of the phase corresponding to the pure metal bath flows into the bath.

IPC 1-7 (main, further and additional classification)

C22B 9/02; C21C 1/04; C21C 7/00

IPC 8 full level (invention and additional information)

B04B 5/00 (2006.01); B01D 17/038 (2006.01); C22B 7/04 (2006.01); C22B 9/02 (2006.01); C22B 19/32 (2006.01); C22B 21/00 (2006.01)

CPC (invention and additional information)

C22B 21/0069 (2013.01); C22B 7/04 (2013.01); C22B 9/02 (2013.01); Y02P 10/234 (2015.11)

Citation (search report)

See references of WO 9960177A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9960177 A1 19991125; AT 409091 B 20020527; AT A83698 A 19990615; EP 1086255 A1 20010328; JP 2002515547 A 20020528

INPADOC legal status


2002-04-17 [18R] REFUSED

- Effective date: 20011125

2001-07-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010601

2001-03-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001111

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE