1. Extractive metallurgy
Discovered by the German chemist Klaproth in 1789, zirconium was first prepared in its metallic form by the Swedish chemist Berzélius in 1824, at the time a very impure, hard and brittle material. . In 1865, Troost tried unsuccessfully to produce malleable zirconium by reducing zirconium chloride with magnesium. ...
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Extractive metallurgy
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