Patent classifications
C
CHEMISTRY; METALLURGY
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C22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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C22B
PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
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3/00
Extraction of metal compounds from ores or concentrates by wet processes
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C22B3/20
Treatment or purification of solutions, e.g. obtained by leaching
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C22B3/282

PROCESS FOR SELECTIVELY CAPTURING CHEMICAL ELEMENTS FROM A POLYMETALLIC SAMPLE
20260055006 · 2026-02-26 ·

The present invention relates to a process for selectively capturing chemical elements from a polymetallic liquid sample.

Separation of rare earth elements
12584193 · 2026-03-24 · ·

A method for purifying lutetium includes providing a solid composition comprising ytterbium and lutetium and subliming or distilling ytterbium from the solid composition at a temperature of about 1196 C. to about 3000 C. to leave a lutetium composition comprising a higher weight percentage of lutetium than was present in the solid composition.