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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
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Organic Chemistry
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Chemical Kinetics & Catalysis
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FR466659D1913-12-031913-12-26Procédé et appareil pour la fabrication de matériaux réfractaires à larges pores, pour filtres par exemple
ExpiredFR466659A
(fr)