Chemistry: electrical and wave energy – Processes and products
Patent
1988-06-20
1989-11-21
Valentine, Donald R.
Chemistry: electrical and wave energy
Processes and products
204140, 204244, 204245, 204246, 204273, 204295, 204251, C25C 336, C25C 324, C25C 700, C25C 704
Patent
active
048820172
ABSTRACT:
A method for making light metal-alkali metal master alloy using alkali metal containing scrap comprises: (a) establishing an electrolytic cell divided into two or more laterally adjacent areas by porous alkali metal ion transport means, said cell including a first cell area supplied with alkali metal-containing scrap and a second cell area consisting essentially of molten light metal; (b) supplying current to this cell for transporting alkali metal ions from the first cell area to the second cell area; (c) forming master alloy by combining these ions with the molten light metal in said second cell area; and (d) withdrawing master alloy from the second cell area. An apparatus for making aluminum-lithium or magnesium-lithium master alloy using the lithium from aluminum-lithium alloy scrap is also disclosed.
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Aluminum Company of America
Topolosky Gary P.
Valentine Donald R.
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