Fremgangsmåde til separation af yttrium

摘要

Process for the selective separation of yttrium from solution containing yttrium and lanthanides. …This process consists in bringing an aqueous solution 4 into contact with an organic phase 5 in a battery 1 of mixer decanters in order to extract the lanthanides into the organic phase, the exiting aqueous solution 7 being enriched in yttrium. The organic phase comprises a mixture of a cationic extracting agent with a substituted hydroxyquinoline. ……