Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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B01D
SEPARATION
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51/00
Auxiliary pretreatment of gases or vapours to be cleaned
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B01D51/02
Amassing the particles, e.g. by flocculation
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B01D51/06
by varying the pressure of the gas or vapour
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