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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2229/00
Aspects of molecular sieve catalysts not covered by B01J29/00
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B01J2229/30
After treatment, characterised by the means used
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B01J2229/37
Acid treatment
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