The separation facilities
at Mountain Pass are temporarily suspended subject to the
resolution of waste water disposal issues. However, Molycorp
has the capability of producing lanthanide concentrates as
well as high-purity products in several different forms.
Bastnasite is selectively leached to separate the insoluble
Cerium fraction from the other Lanthanide elements. The
Cerium product is washed to remove any contaminants, filtered,
dried and packaged according to customer specifications.
The dissolved Lanthanides proceed through impurity removal
steps then to solvent extraction cells where a collector
preferentially extracts the heavier elements and rejects
the lighter fraction. The heavier fraction is separated
at our Europium recovery facility where Europium is extracted
as a high purity oxide. The lighter fraction may be precipitated,
thickened, filtered, dried and packaged as Lanthanum concentrate
or further purified via solvent extraction to produce high
purity Lanthanum, Praseodymium or Neodymium products.
For more information on each phase of our operations please
click on the links at left.