Method of removal of alkali and alkaline earth metals from...

Details Method of removal of alkali and alkaline earth metals from... Method of removal of alkali and alkaline earth metals from...

C - Chemistry, Metallurgy

22

B

53/246, 53/358

C22B 26/00 (2006.01) C22B 9/05 (2006.01) C22B 21/06 (2006.01)

Patent

CA 1077722

Abstract of the Disclosure Alkali and alkaline earth metals are removed from light metal melts by causing the melt to flow through a bed consisting of a granulate of a mechanically resistant and chemically inert carrier material, the particles of which have a coating of carbon. A suitable granulate is coated by mixing carrier material with a carbonaceous binding material and heating the mixture in a closed reaction vessel to produce coking of the binding material and pro- duction of an adherent coating of carbon on the particles of the granulate. The density of the coated granulate is greater than 2.5g/cm3.

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