Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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B01J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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47/00
Ion-exchange processes in general; Apparatus therefor
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B01J47/02
Column or bed processes
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B01J47/026
using columns or beds of different ion exchange materials in series
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