Juan José d’Elhuyar y de Suvisa

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Juan José d’Elhuyar y de Suvisa

Spanish engineer

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collaboration with Fausto d’Elhuyar y de Suvisa

In Fausto Elhuyar
…in partnership with his brother Juan José was the first to isolate tungsten, or wolfram (1783), though not the first to recognize its elemental nature. After teaching at Vergara, in Spain (1781–85), Fausto accompanied his brother to several European colleges, including the Freiberg (Saxony) School of Mining and the University…
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isolation of tungsten

In tungsten
…the Spanish chemists and mineralogists Juan José and Fausto Elhuyar by charcoal reduction of the oxide (WO₃) derived from the mineral wolframite. Earlier (1781) the Swedish chemist Carl Wilhelm Scheele had discovered tungstic acid in a mineral now known as scheelite, and his countryman
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