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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60/00
Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
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C22B60/02
Obtaining thorium, uranium, or other actinides
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C22B60/0252
treatment or purification of solutions or of liquors or of slurries
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C22B60/0265
extraction by solid resins
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