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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
B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
B01J39/26—Cation exchangers for chromatographic processes
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FR1213552D1957-09-021958-09-01Perfectionnements apportés aux procédés de séparation des ions de terres rares et d'yttrium par échange d'ions
ExpiredFR1213552A
(fr)
Perfectionnements apportés à l'agencement des appareils fonctionnant par insertion de monnaie ou analogue, notamment en ce qui concerne les récepteurs radiophoniques