Method of removal of alkali and alkaline earth metals from light

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

1978-09-27

1979-05-01

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 63, C22B 2106

Patent

active

041521412

ABSTRACT:
Alkali and alkaline earth metals are removed from light metal melts by causing the melt to flow through a bed consisting of granules of a mechanically resistant and chemically inert carrier particles which have a coating of carbon. A suitable granule is prepared by mixing particles of inert carrier material with a cokable carbonaceous material and heating the mixture in a closed reaction vessel to produce an adherent coating of carbon on the carrier particles of the granules. The density of the coated granules is greater than 2.5 g/cm.sup.3.

REFERENCES:
patent: 3281238 (1966-10-01), Bachowski et al.
patent: 3528801 (1970-09-01), Bylund et al.

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