Paul Héroult

Paul Héroult

in France
April 10, 1863

May 09, 1914



Charles Martin Hall

Paul (Louis-Toussaint) Héroult (April 10, 1863 – May 9, 1914) was a French scientist. He was the inventor of the aluminium electrolysis and of the electric steel furnace. He lived in Thury-Harcourt, Normandy.

Paul Héroult read Henri Sainte-Claire Deville's treatise on aluminium, when he was 15 years old. At that time, aluminium was as expensive as silver and was used mostly for luxury items and jewellery. Héroult wanted to make it cheaper. He succeeded in doing so when he discovered the electrolytic aluminium process in 1886. The same year, in the United States, Charles Martin Hall (1863–1914) was discovering the same process. Because of this the process was called the Hall-Heroult process.

Héroult's second most important invention is the ele

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