06.06.2014 - Is There a Cleaner Way to Make Metals?
Making metal is a dirty business, and we don't just mean in terms of getting your hands dirty. Creating useable metals from the ores that are dug from the ground is a heavily polluting endeavor—but it might be about to get a whole lot cleaner. Most metals are created in a two-step process. First, the excavated ores are ground down and filtered to get rid of the obvious junk and intruder metal ores, leaving just the metal oxides—metallic atoms bound up with other elements including oxygen, as opposed to in its pure form...............................................Full Article: Source
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