Aluminum Extraction From Clays
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Aluminum extraction from clay - we are not talking about energy intensive smelting (requires fuel consumption on the order of 1 gallon of fuel oil for 1 kg of metal) with bauxite as aluminum ore, but a thermal and chemical process based on clay- not bauxite. Aluminum is not smelted, but leached out with hydrochloric acid: http://www.freepatentsonline.com/4388280.html. This is remarkable news to anyone interested in a better world - formerly strategic metals can be made anywhere. I need not emphasize the ranges of use of aluminum.