What are Rare Earth Elements?

Rare earths are essential components in a wide range of industrial, clean energy and information technology applications. Today, MP Materials produces a rare earth concentrate, and by the end of 2020 will produce high-purity separated Neodymium and Praseodymium (NdPr) oxide, Lanthanum and Cerium oxides and carbonates, and a “heavy” rare earth concentrate.

  • Rare earths are a series of chemical elements found in the earth’s crust that are vital to many modern technologies
  • Extensive processing is required to separate rare earth elements from mined ore
  • While the elements themselves aren’t rare, ore bodies containing sufficient concentrations to make processing economically viable are exceedingly rare. Mountain Pass is one of the richest deposits of rare earth elements in the world.
  • Unique magnetic and electrochemical properties of the elements enable technologies to perform with greater efficiency, performance, and durability—often by reducing weight, emissions, or energy consumption
  • Rare earth-enabled technologies power global economic growth, enable life-saving products, and help shrink our carbon footprint

SEG+ ’Heavies’ Concentrate
(Samarium / Europium / Gadolinium / Terbium / Dysprosium)

SEG+ is a combination of Samarium, Europium, Gadolinium, Terbium, and Dysprosium which MP Materials produces in a concentrate form.

EV Motors

EV Motors

Medical Devices

Medical Devices

Lasers

Lasers

Neodymium and Praseodymium (“NdPr”)

Neodymium and Praseodymium power the strongest types of rare earth magnets, which enable the conversion of electrical energy into motion via permanent-magnet motors. These motors power EVs and countless industrial processes.

EV Motors

EV Motors

Mobile Devices

Mobile Devices

Wind Turbines

Wind Turbines

Cerium

In addition to its role in various metal alloys and glass polishing compounds, Cerium reduces automobile emissions through its use in catalytic converters and enables energy efficiency by powering LED lighting.

Automotive catalysts

Automotive Catalysts

Glass polishing

Glass Polishing

LED lighting

LED lighting

Lanthanum

Lanthanum’s primary end-uses include automotive and imaging/vision applications. Lanthanum prevents corrosion in EV batteries, adds efficiency to petroleum cracking and enables specialized treatments for lenses and vision systems.

Rechargeable Batteries

Rechargeable Batteries

Night Vision Goggles

Night Vision Goggles

Camera and telescopic lenses

Camera & Telescopic Lenses

How we make it

Mining

Mountain Pass’s primarily bastnaesite ore—one of the richest deposits of rare earths in the world—is recovered from an open-pit surface mine and separated from overburden waste.

Beneficiation

Through a process of crushing, milling, conditioning and flotation, the rare earth elements in the ore are separated from the other elements, forming a rare earth concentrate.

Separation

The concentrate undergoes a complex chemical process to purify, recover, separate and precipitate the individual rare earth elements.

Finishing

Rare earth oxides, primarily lanthanum, cerium, and NdPr oxide, are packaged and treated to meet specific customer specifications.

Chlor-Alkali

Waste solution from the separations process is recycled on-site in a closed-loop system to create the chemical reagents needed for processing.

What we power

Automotive
Clean Energy
Clean Energy
Digital Technologies