The Bolzano process is a means to reduce
magnesium
Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic ...
to metallic form.
"Dolomite-ferrosilicon briquettes are stacked on a special charge support system through which internal electric heating is conducted to the charge. A complete reaction takes 20 to 24 hours at 1,200 °C."
In 2014, Brazilian operations produced 10-15 kilotons of Mg by this process.
Also in 2014,
Nevada Clean Magnesium announced its Tami-Mosi plan to create a
ASTM B-92
ASTM International, formerly known as American Society for Testing and Materials, is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, ...
pilot plant. The mineral resource is estimated at 412 billion tons of 12.3% grade Mg.
The company produced its first ingot from a pilot plant in December 2018.
References
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Metallurgy
Metallurgical processes
Smelting