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Basics |
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Demographics:
Metal Casting - Magnesium
Magnesium compounds
are recovered from seawater and minerals such as dolomite, brucite, and olivine.
Compounds are then further processed to produce primary magnesium.
Seawater and
natural brines accounted for about 60% of U.S. magnesium compounds production.
Magnesium oxide and other compounds were recovered from seawater by two companies
in Delaware and Florida, from well brines by three companies in Michican, and
from lake brines by two companies in Utah. Magnesite was mined by one company
in Nevada, brucite was mined by one company in Nevada and one company in Texas,
and olivine was mined by two companies in North Carolina and Washington.
After magnesium
oxide compounds are produced, one of two main types of recovery are used to produce
primary magnesium metal. These processes are known as electrolytic production
or thermal reduction.
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