Patent classifications
C
CHEMISTRY; METALLURGY
Load children
C22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
Load children
C22B
PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
Load children
3/00
Extraction of metal compounds from ores or concentrates by wet processes
Load children Filter patents View analytics View as hierarchy Open in page
C22B3/20
Treatment or purification of solutions, e.g. obtained by leaching
Load children Filter patents View analytics View as hierarchy Open in page

C22B3/28

SEPARATION OF RARE EARTH ELEMENTS
20250305091 · 2025-10-02 · ·

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.

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.