EP 3081671 B1 20170802 - SCANDIUM CONCENTRATE PRODUCTION METHOD
Title (en)
SCANDIUM CONCENTRATE PRODUCTION METHOD
Title (de)
SCANDIUMKONZENTRATHERSTELLUNGSVERFAHREN
Title (fr)
PROCÉDÉ DE PRODUCTION DE SCANDIUM CONCENTRÉ
Publication
Application
Priority
- JP 2014012667 A 20140127
- JP 2015051828 W 20150123
Abstract (en)
[origin: EP3081671A1] The present invention effectively recovers a scandium concentrate from an Al-Sc alloy. This scandium concentrate production method includes: a molten mixture production step (S1) in which an alloy that contains aluminum and scandium is brought into contact with chlorine and melted in order to produce a molten mixture of aluminum chloride and scandium chloride; a first electrolysis step (S2) in which the molten mixture is subjected to first electrolysis at a potential that is between the potential that causes aluminum to form a metal and the potential that causes scandium to form a metal and molten aluminum is produced; and a second electrolysis step (S3) in which, after the step in which molten aluminum is produced, the molten mixture is subjected to second electrolysis at a potential that makes it possible to recover scandium and a scandium concentrate is produced.
IPC 8 full level
C22B 59/00 (2006.01); C22C 21/00 (2006.01); C25C 3/06 (2006.01); C25C 3/34 (2006.01)
CPC (source: EP)
C22B 59/00 (2013.01); C22C 21/00 (2013.01); C25C 3/06 (2013.01); C25C 3/34 (2013.01)
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
DOCDB simple family (publication)
EP 3081671 A1 20161019; EP 3081671 A4 20161221; EP 3081671 B1 20170802; JP 2015140446 A 20150803; JP 5907188 B2 20160426; WO 2015111698 A1 20150730
DOCDB simple family (application)
EP 15740883 A 20150123; JP 2014012667 A 20140127; JP 2015051828 W 20150123