The extraction agent thereby enriched with rare earths is then treated.
The rare earths are removed during this treatment.
The present disclosure is directed to the use of rare earth-containing additives, particularly rare earth-containing additives comprising rare earths of plural oxidation states, to remove non-metal-containing oxyanions.
Back in the day, you heard light rare earths, heavy rare earths, mixed rare earths, or critical rare earths — I’m introducing here a slightly different term.
The invention relates to a leaching method for extracting rare earths from rare earth minerals containing phosphate.
Compounds of rare earth metals
from B1120 Lanthanides (rare earth metals
rare earth metals, scandium and yttrium
rare earth metals, scandium and yttrium
Compositions comprising rare earth metals and dopants/additives with rare earth metals are described.
Provided is a rare earth magnet recovery method, which enables the recovery of a resin-free rare earth magnet from a product containing the rare earth magnet that is integrated with a resin.
A rare earth dope fiber module including an expandable resin reel and a rare earth dope optical fiber coiled around the resin reel.
The result is a simplified method and a greater degree of rare earth metal recovery into solution from both phosphogypsum and solid minerals containing rare earth metals.
Greenland gives green light for uranium and rare earths mining
The rare earth dope optical fiber module further includes a single mode optical fiber which is fusion- connected to a rare earth dope optical fiber and coiled around the resin reel.
The first layer contains a rare earth oxide and has a mass ratio of the heavy rare earth elements to the light rare earth elements of 1 or more.
surface-applied rare earth elements
The arc-shaped rare earth magnets are produced from a material containing at least one rare earth elements.
The methods may include the selective precipitation of rare earth elements from pregnant liquor solutions as rare earth oxalates.
Rare earth elements are classified into two groups, namely, light rare earth elements and heavy rare earth elements.
The compound of a rare earth element is preferably a hydroxide of a rare earth element, an oxyhydroxide of a rare earth element or an oxide of a rare earth element.
These processes and treatments are particularly useful in regard to solid rare earth versatate, rare earth neodecanoate, rare earth octanoate, rare earth 2-ethyl hexanoate and rare earth naphthenate compositions.
The rare earth binder component is preferably derived from a rare earth acid sol.
According to the present invention, a rare earth doped fiber coil comprises a rare doped optical fiber having a rare-earth doped core surrounded by a cladding.
Then, the rare earth halide in the molten salt can be reduced, to convert the rare earth halide to a rare earth element in its elemental state.
The rare earth element oxide is an oxide of a light rare earth element, an oxide of a medium rare earth element, an oxide of a heavy rare earth element, an oxide of yttrium, or a mixture of two or more thereof.
The first and second rare earth precursors comprise a different rare earth metal element.
In order to extract a rare earth using the rare earth extracting agent according to the present invention, an acidic solution containing the rare earth is subjected to solvent extraction.
The metal/metalloid oxide comprises a non-rare earth metal oxide wherein less than about 25 weight percent of a non-rare earth metal is substituted with a rare earth metal.
Stable rare earth tris (organophosphate) solutions comprise a rare earth tris (organophosphate) and a hydrocarbon solvent.
The plurality of rare earth metal chelate groups have at least one metal ion selected from the group consisting of Eu?3+, Sm3+, Tb3+ and Dy3+¿ as the chelated rare earth metal.
The rare-earth sensitizer could be a salt or a rare-earth complex.
There are rare earth mines, rare earth magnets, rare earth lasers.
There are deep wells of strength that are seldom used.
rare-earth metals, scandium and yttrium
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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