Patent classifications
C
CHEMISTRY; METALLURGY
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C01
INORGANIC CHEMISTRY
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C01B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
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23/00
Noble gases; Compounds thereof
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C01B23/001
Purification or separation processes of noble gases
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C01B23/0036
Physical processing only
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C01B23/0052
by adsorption in solids
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C01B23/0057
characterised by the adsorbent
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