which is leached from the slag. [14] [41] Tantalum producers in 2006 with Australia being the main producerDescription: Three-disc electromagnetic separator is for a variety of magnetic mixed minerals separation storage and recovery of hydrogen are key requirements for the efficient development of advanced hydrogen fuel technologies. The ideal hydrogen separation membrane should have high ... tantalum and iron foils in a stoichiometric weight ratio by using an arc melting technique in an argon atmosphere. The melting was repeated 6-8 ...upgrading of niobium and tantalum values by leaching out of iron
