Back to results
US 2026/0159977 A1Published application
Scrap Aluminum Alloy Purification Process
AssigneeApple Inc.
InventorsJames A. Yurko, Joseph D. Lessard
Life of this patent
Estimating the term…
Abstract
A method of purifying aluminum using an electrochemical cell is provided. The electrochemical cell includes a scrap aluminum alloy anode, a purified aluminum cathode, and an AlCl3-based molten electrolyte salt. When an electric potential is applied between the scrap aluminum alloy anode and purified aluminum cathode, aluminum is oxidized from the scrap aluminum alloy anode as Al ions in and Al ions are reduced by the purified aluminum cathode.
Claims24
A method of purifying aluminum comprising:
- providing an electrochemical cell comprising a scrap aluminum alloy anode, a purified aluminum cathode, and an AlCl3-based molten electrolyte salt;
- and
- applying an electric potential between the scrap aluminum alloy anode and purified aluminum cathode to cause aluminum to be oxidized by the scrap aluminum alloy anode as Al ions in the AlCl3-based molten electrolyte salt, and Al ions to be reduced as aluminum metal by the purified aluminum cathode.
A method of purifying aluminum comprising:
- providing an electrochemical cell comprising:
- a first scrap aluminum alloy anode and a second scrap aluminum alloy anode
- alternating between a first purified aluminum cathode and a second purified
- aluminum cathode;
- and
- an AlCl3-based molten electrolyte salt;
- and
- applying an electric potential between the scrap aluminum alloy anodes and the purified aluminum cathodes to cause aluminum to be oxidized by the first and second scrap aluminum alloy anodes as Al ions in the AlCl3-based molten electrolyte salt and Al ions to be reduced as aluminum metal by the first and second purified aluminum cathodes.
5 more elements
Dependencies are inferred from the claim text.