Method for rare earths extraction
OwnerTerry G Lenzinventor
Life of this patent
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Abstract
A method for extracting a rare earth from a rare earth sample using magnetic-based concentration and separation of an ore containing a selected rare earth from a lanthanide series of elements. The method steps include selecting and grinding a rare earth sample into particle size from the lanthanide series of elements, treating the rare earth sample to variable weak electromagnets, treating the rare earth sample to a variable strong electromagnets and separating non-magnetic minerals. Then heating the rare earth sample in a thermal decomposition oven and then treating the rare earth sample to second variable strong electromagnets for a magnetic gradient ion exchange fixed bed separation. Finally, creating high grade rare earth oxides for further production of rare earth contained products.
Claims16
A method for extracting a rare earth from a rare earth sample using magnetic-based concentration and separation of an ore containing a selected rare earth from a lanthanide series of elements, the steps comprising:
- selecting and grinding a rare earth sample into particle size from the lanthanide series of elements;
- treating the rare earth sample to variable weak electromagnets and separating ferromagnetic minerals from the rare earth sample
- treating the rare earth sample to a variable strong electromagnets and separating non-magnetic minerals from the rare earth sample;
- heating the rare earth sample in a thermal decomposition oven;
- treating the rare earth sample to second variable strong electromagnets for a magnetic gradient ion exchange fixed bed separation;
- and
- creating rare earth oxides for further production of rare earth contained products.
A method for extracting a rare earth from a rare earth sample using magnetic based concentration and separation of an ore containing a selected rare earth from a lanthanide series of elements, the steps comprising:
- selecting and grinding a rare earth sample into particle size form the lanthanide series of elements;
- treating the rare earth sample to variable weak electromagnets and separating ferromagnetic minerals, such as Fe Ni, Co, and like common Fe minerals from the rare earth sample;
- treating the rare earth sample to a variable strong electromagnets, and separating non-magnetic minerals from the rare earth sample
- heating the rare earth sample in a thermal decomposition oven;
- treating the rare earth sample to a second variable strong electromagnets as to magnetic gradient ion exchange fixed bed separation;
- and
- creating rare earth oxides for further production of rare earth contained products.
A method for extracting a rare earth from a rare earth sample using magnetic-based concentration and separation of an ore containing a selected rare earth from a lanthanide series of elements, the steps comprising:
- selecting and grinding a rare earth sample into particle size from the lanthanide series of elements;
- treating the rare earth sample to variable weakness electromagnets having a field strength of less than 0.20 T;
- and
- separating ferromagnetic minerals, such as Fe, Ni, Co, and like common Fe minerals from the rare earth sample;
- treating the rare earth sample to a variable strong electromagnet having a field strength of 0.5-2.5 T, and separating non-magnetic minerals from the rare earth sample;
- heating the rare earth sample in a thermal decomposition oven;
- treating the rare earth sample to second variable strong electromagnets for a magnetic gradient ion exchange fixed bed separation;
- and
- creating rare earth oxides for further production of rare earth contained products.
Dependencies are inferred from the claim text.