B
SECTION B — PERFORMING OPERATIONS
  
SEPARATING AND MIXING
 B01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL (furnaces, kilns, ovens, retorts, in general F27)
 B01K
ELECTROCHEMICAL PROCESSES OR APPARATUS IN GENERAL (electrodialysis, electro-osmosis B01D 13/02; isotope separation by electrochemical methods B01D 59/38; electrothermal production of metals C22B 4/00; electrolysis or electrophoresis C25)
 B01K 1/00
Electrochemical processes or apparatus in general
 B01K 3/00 - 
B01K 5/00
( transferred to C25 )