Method of making particles useful for removal of alkali and alka

Details Method of making particles useful for removal of alkali and alka Method of making particles useful for removal of alkali and alka

1976-01-14

1979-05-01

Andrews, M. J.

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

75 68R, 427228, C22B 2106

Patent

active

041524705

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 the carbonaceous material and produce an adherent coating of carbon on the carrier particles of the granulate. The density of the coated granules is greater than 2.5 g/cm.sup.3.

REFERENCES:
patent: 2626875 (1953-01-01), McConnaughay
patent: 3172757 (1965-03-01), Hess et al.
patent: 3305351 (1967-02-01), Bylund
patent: 3528801 (1970-09-01), Bylund et al.
patent: 3790410 (1974-02-01), Mund

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