Process for the production of aluminum
OwnerMatthias Welschinventor
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Abstract
Aluminum is produced from low-grade aluminum alloys by melting an Al-X alloy wherein X has a higher specific weight than aluminum and forms an eutectic mixture rich in aluminum, the starting melt being on the side of the eutectic mixture rich in aluminum, and radially cooling the melt from the inside to the outside while under the effect of centrifugal force.
Claims5
A method for the production of aluminum by refining an aluminum alloy by centrifuging with controlled cooling which comprises melting an Al-X alloy, wherein the X-component of said alloy has a higher specific weight than aluminum and forms an eutectic mixture with aluminum whereby the composition of the starting melt is on that side of the eutectic mixture rich in aluminum, and radially cooling said melt from the inside to the outside by blowing a cooling medium onto the inner surface of said melt while being under the effect of the centrifugal force.
Dependencies are inferred from the claim text.