EP 0375308 A1 19900627 - Process and apparatus for producing high purity aluminum.
Title (en)
Process and apparatus for producing high purity aluminum.
Title (de)
Verfahren und Anlage zur Herstellung von hochfeinem Aluminium.
Title (fr)
Procédé et dispositif pour la production d'aluminium de haute pureté.
Publication
Application
Priority
CA 586886 A 19881222
Abstract (en)
A process and apparatus are described for producing high purity aluminum by fractional crystallization. This process comprises the steps of melting the aluminum to be purified to obtain a molten aluminum, holding the molten aluminum within a vertical, cylindrical crystallizer vessel at least partially surrounded by a cooling jacket for the passage of cooling fluid therethrough, and stirring the molten aluminum in the vessel while passing cooling fluid through the cooling jacket thereby crystallizing high purity aluminum on the cooled inner vessel wall. An apparatus for carrying out the above process is also described.
IPC 1-7
IPC 8 full level
C22B 21/06 (2006.01); F27D 9/00 (2006.01)
CPC (source: EP KR)
C22B 21/06 (2013.01 - EP KR); F27D 9/00 (2013.01 - EP)
Citation (search report)
- [Y] US 4734127 A 19880329 - IUCHI TOSHIAKI [JP], et al
- [Y] EP 0027052 A1 19810415 - SHOWA ALUMINIUM CO LTD [JP]
- [AD] US 3163895 A 19650105 - DEWEY JOHN L
- [AD] US 4469512 A 19840904 - SHINGU HIDEO [JP], et al
- [A] US 4275569 A 19810630 - MAYERS RICHARD R, et al
- [Y] EP 0064966 A1 19821117 - ISHIZUKA HIROSHI
- [A] PATENT ABSTRACTS OF JAPAN, vol. 6, no. 57 (C-98)[935], 14th April 1982; & JP-A-56 169 736 (SUMITOMO KEIKINZOKU KOGYO K.K.) 26-12-1981
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0375308 A1 19900627; AU 4703289 A 19900628; JP H02225633 A 19900907; KR 900010026 A 19900706
DOCDB simple family (application)
EP 89313184 A 19891218; AU 4703289 A 19891221; JP 33250989 A 19891221; KR 890019253 A 19891222