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C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B32/00—Carbon; Compounds thereof
C01B32/30—Active carbon
C01B32/312—Preparation
C01B32/336—Preparation characterised by gaseous activating agents
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FR512053A1919-02-011920-03-19Procédé pour la production de substances charbonneuses ayant une grande capacité d'absorption des gaz
ExpiredFR512053A
(fr)