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B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
B01J20/30—Processes for preparing, regenerating, or reactivating
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FR629897D1927-02-261927-02-26Procédé pour la fabrication de matières décolorantes activées sous forme granuleuse
ExpiredFR629897A
(fr)