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 ...

Bioleaching close bioleachingUsing bacteria to extract metals from their ores. is used to extract small quantities of metals from mining waste heaps. Electrolysis can be used to extract the metal from ...

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 ...

Charles Toth, an engineer who worked on Saturn moon rockets at the Michoud Assembly Facility in New Orleans East and later developed a method for extracting aluminum from clay, died Wednesday at his ...

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 ...