American Can Company

Benny Langston

Carl F Bauer

Niranjan M Parikh

James H Hussey

Ronald E Beese

An improved flux used for the recovery of metallic aluminum from dross in a reverberatory furnace. The flux is an alloyed mixture of sodium chloride and potassium chloride in approximately equal parts by weight which has been preheated and then cooled to form an alloyed mixture. A small amount of cryolite can be added to the liquid mixture before cooling to improve the recovery of metal obtained than when the salt and potash flux mixture is used alone.

Flux in recovery of aluminum in reverberatory furnace and method of

A process for the recovery of metal, particularly aluminum is disclosed whereby flux is in a ratio of less than about 0.4 flux to inert material in the dross.

Flux in recovery of aluminum in reverberatory furnace

This invention pertains to fluxes used in recovery operations for secondary aluminum. The flux herein is formulated in order to minimize the amount of chloride in the slag whereby it can be used as land fill without an adverse impact on the environment or in lieu of bauxite in the manufacture of aluminum or as source of aluminum oxide for the manufacture of aluminum or aluminum salts. The flux uses a combination of sodium chloride and aluminum chloride which form a double salt having vapor pressure sufficiently low to permit the aluminum chloride sublimation, without rapid sublimation, however, sufficiently high to permit the evaporation of chloride salts to provide low chloride slag. The improved flux also permits the heat cycle to be shortened by 10 to 20 percent thereby giving a measurable energy savings.

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Barrington, IL, United States of America

Benny Langston