Apple is gradually accumulating a legendary portfolio of patents related to material sciences, with a recent patent filing describing a cheaper, more efficient process to recover pure aluminum from its scrapped alloy state. Apple's patent application describes a process that recovers pure aluminum from a scrapped heap at temperatures as low as 125 degree Celsius Traditional methods of recovering pure aluminum from its alloys, such as the Hoopes process, are generally energy- and capital-intensive, diminishing the underlying economic rationale. Apple, however, has now applied to patent a new aluminum recovery method, one that involves electrorefining in conjunction with a low-melting-temperature […]

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