EP 1188843 B1 20040519 - Process and installation for supplying oxygen enriched air to a production unit of non-ferrous metals
Title (en)
Process and installation for supplying oxygen enriched air to a production unit of non-ferrous metals
Title (de)
Verfahren und Anlage zur Versorgung eines Aggregats für Nichteisenmetallerzeugung mit durch Sauerstoff angereicherter Luft
Title (fr)
Procédé et installation d'alimentation en air enrichi en oxygène d'une unité de production de métal non-ferreux
Publication
Application
Priority
FR 0011878 A 20000918
Abstract (en)
[origin: EP1188843A1] Air compressed in a single compressor (1) is supplied to a mineral melting unit (2), a matte conversion unit (6), and an air separation unit (4), which provides two flows (9, 10) of oxygen-enriched air for the mineral melting unit and conversion unit, respectively. Buffering unit (7) enables variation of the flow rate of oxygen-enriched air to the conversion unit. Process for supplying oxygen-enriched air to a non-ferrous metal production apparatus comprising a unit (2) for melting a mineral concentrate of the metal continuously supplied with oxygen-enriched air, and a unit (6) for conversion of the matte from the melting unit (2) and supplied with a variable flow of oxygen-enriched air comprises: (a) compressing air in a single compressor (1) adapted to supply both the mineral melting unit (2) and the matte conversion unit (6); (b) treating part of the compressed air in an air separation unit (4), in order to obtain two flows of oxygen (9, 10) that are, respectively, injected into the compressed air streams to the mineral melting unit (2) and the matte conversion unit (6); and (c) storing the compressed air or the oxygen-enriched compressed air for the matte conversion unit (6) in a buffering vessel (7) when the consumption of oxygen-enriched air in the matte conversion unit (6) is less than a predetermined threshold and withdrawing compressed air or oxygen-enriched air from the buffering vessel when the consumption of oxygen-enriched air in the conversion unit (6) is greater than the threshold. An Independent claim is given for an installation used for implementation of the above process.
IPC 1-7
IPC 8 full level
B01J 4/00 (2006.01); C22B 5/08 (2006.01); C22B 15/00 (2006.01); C22B 15/06 (2006.01); F25J 3/04 (2006.01)
CPC (source: EP US)
C22B 15/0028 (2013.01 - EP US); C22B 15/0041 (2013.01 - EP US); F25J 3/04084 (2013.01 - EP US); F25J 3/0409 (2013.01 - EP US); F25J 3/04206 (2013.01 - EP US); F25J 3/04303 (2013.01 - EP US); F25J 3/04412 (2013.01 - EP US); F25J 3/04515 (2013.01 - EP US); F25J 3/04527 (2013.01 - EP US); F25J 3/04551 (2013.01 - EP US); F25J 3/046 (2013.01 - EP US); F25J 2250/40 (2013.01 - EP US); F25J 2250/50 (2013.01 - EP US)
Designated contracting state (EPC)
DE FI FR GB
DOCDB simple family (publication)
EP 1188843 A1 20020320; EP 1188843 B1 20040519; AU 6556701 A 20020321; AU 773575 B2 20040527; CA 2357371 A1 20020318; CN 1227380 C 20051116; CN 1348015 A 20020508; DE 60103339 D1 20040624; DE 60103339 T2 20050414; FR 2814178 A1 20020322; FR 2814178 B1 20021018; JP 2002155321 A 20020531; US 2002033566 A1 20020321; US 6576040 B2 20030610; ZA 200107030 B 20020225
DOCDB simple family (application)
EP 01402174 A 20010814; AU 6556701 A 20010830; CA 2357371 A 20010913; CN 01133055 A 20010917; DE 60103339 T 20010814; FR 0011878 A 20000918; JP 2001281460 A 20010917; US 95394401 A 20010918; ZA 200107030 A 20010824