EP 0090750 B1 19860820 - PROCESS FOR OBTAINING VERY HIGH PURITY ALUMINIUM IN ENTECTIC ELEMENTS
Title (en)
PROCESS FOR OBTAINING VERY HIGH PURITY ALUMINIUM IN ENTECTIC ELEMENTS
Publication
Application
Priority
FR 8205895 A 19820331
Abstract (en)
[origin: US4444585A] The present invention relates to a process of segregation for producing metals such as aluminum in a very high state of purity in respect of eutectic elements. The process comprises adding to a metal which is already very pure, at least one eutectic element, in a hypoeutectic amount, to ensure efficiency of the segregation operation. The added element or elements must be capable of being easily eliminated in the segregation operation, and it must not create difficulties in regard to the use envisaged for the metal. This process can be used in particular for the production, with a suitable yield, of aluminum containing less than 10 ppm of iron and silicon, and intended in particular for the manufacture of high and medium voltage capacitors.
IPC 1-7
IPC 8 full level
C22B 21/06 (2006.01); C22B 9/02 (2006.01)
CPC (source: EP KR US)
C22B 21/06 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0090750 A1 19831005; EP 0090750 B1 19860820; AT E21529 T1 19860915; AU 1299883 A 19831006; AU 551209 B2 19860417; BR 8301579 A 19831206; CA 1185436 A 19850416; DE 3365393 D1 19860925; ES 521015 A0 19840601; ES 8405446 A1 19840601; FR 2524490 A1 19831007; FR 2524490 B1 19880513; GR 77984 B 19840925; IN 158047 B 19860823; IS 1353 B6 19890419; IS 2793 A7 19831002; JP H022937 B2 19900119; JP S58181835 A 19831024; KR 840004178 A 19841010; KR 860001306 B1 19860911; NO 160793 B 19890220; NO 160793 C 19890531; NO 831192 L 19831003; NZ 203683 A 19860611; US 4444585 A 19840424; ZA 832267 B 19831228
DOCDB simple family (application)
EP 83420054 A 19830324; AT 83420054 T 19830324; AU 1299883 A 19830330; BR 8301579 A 19830328; CA 424280 A 19830323; DE 3365393 T 19830324; ES 521015 A 19830325; FR 8205895 A 19820331; GR 830170880 A 19830323; IN 355CA1983 A 19830324; IS 2793 A 19830324; JP 5346183 A 19830329; KR 830001326 A 19830331; NO 831192 A 19830330; NZ 20368383 A 19830324; US 47878583 A 19830325; ZA 832267 A 19830330