Aluminium smelting utilises the Hall-Héroult process of extracting aluminium metal from its oxide, alumina. In this process, alumina is dissolved in cryolite at about 1000°C in a large pot. This ...

In 1889, recent college grad Charles Martin Hall devised a way to isolate metallic aluminum. __1889: __ Charles Martin Hall patents his process for using electrical current to extract metallic ...

A Purdue University engineer has developed a method that uses an aluminum alloy to extract hydrogen from water for running fuel cells or internal combustion engines, and the technique could be used to ...