(0)B01D:1/11:
IPC6
SECTION B - PERFORMING OPERATIONS; TRANSPORTING
SEPARATION
B01D
2/12
<<   >>   B01D005/00 - B01D024/00  

5
/ 00 Condensation of vapours; Recovering volatile solvents by condensation (B 01 D 8/00 takes precedence; condensers F 28 B) [3]
 

 7
/ 00 Sublimation (B 01 D 8/00 takes precedence; freeze-drying F 26)

7
/ 02 • Crystallisation directly from the vapour phase (into single crystals C 30 B 23/00) [2]  
 

 8
/ 00 Cold traps; Cold baffles (pumps for evacuating by condensing or freezing F 04 B 37/08) [3]
 

 9
/ 00 Crystallisation (crystallisation directly from the vapour phase B 01 D 7/02; making single crystals C 30 B)

9
/ 02 • from solutions  

9
/ 04 • • concentrating solutions by removing frozen solvent therefrom  
 

 11
/ 00 Solvent extraction

11
/ 02 • of solids  

11
/ 04 • of solutions which are liquid  
 

 12
/ 00 Displacing liquid, e.g. from wet solids or from dispersions of liquids or from solids in liquids, by means of another liquid
 

 15
/ 00 Separating processes involving the treatment of liquids with adsorbents (ion exchange processes in general B 01 J; for investigating materials G 01 N 30/00) [4]

15
/ 02 • with moving adsorbents  

15
/ 04 • with ion-exchange materials as adsorbents  

15
/ 08 • Selective adsorption, e.g. chromatography  
 

 17
/ 00 Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion (devices for separating or removing fatty or oily substances or similar floating material from water, waste water, or sewage C 02 F 1/40; cleaning or keeping clear the surface of open water from oil or like materials E 02 B 15/04)

17
/ 02 • Separation of non-miscible liquids  

17
/ 022 • • by contact with a preferentially wettable solid [4]  

17
/ 025 • • by gravity, in a settling tank [4]  

17
/ 028 • • • provided with a set of baffles [4]  

17
/ 032 • • • provided with special equipment for removing at least one of the separated liquids [4]  

17
/ 035 • • by using gas-bubbles or moving solids introduced into the mixture [4]  

17
/ 038 • • by centrifugal force (centrifuges B 04 B; cyclones B 04 C) [4]  

17
/ 04 • • Breaking emulsions  

17
/ 05 • • • by chemical treatment [4]  

17
/ 06 • Separation of liquids from each other by electricity  

17
/ 09 • by thermal diffusion [4]  

17
/ 12 • Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits [4]  
 

 19
/ 00 Degasification of liquids

19
/ 02 • Foam dispersion or prevention (during boiling B 01 B 1/02; during fermentation C 12)  

19
/ 04 • • by addition of chemical substances  
 

 21
/ 00 Separation of suspended solid particles from liquids by sedimentation (differential sedimentation B 03 D 3/00; devices for separating or removing fatty or oily substances or similar floating material from water, waste water, or sewage C 02 F 1/40)

21
/ 01 • using flocculating agents (for purifying water C 02 F 1/52; for liquid radioactive waste G 21 F 9/10) [2]  

21
/ 02 • Settling tanks [4]  

21
/ 04 • • with moving scrapers  

21
/ 06 • • • with rotating scrapers  

21
/ 08 • • provided with flocculating compartments  

21
/ 18 • Construction of the scrapers or the driving mechanisms for settling tanks  

21
/ 20 • • Driving mechanisms  

21
/ 22 • • Safety mechanisms  

21
/ 24 • Feed or discharge mechanisms for settling tanks  

21
/ 26 • Separation of sediment aided by centrifugal force (centrifuges B 04 B; cyclones B 04 C)  

21
/ 28 • Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like [4]  

21
/ 30 • Control equipment [4]  

21
/ 32 • • Density control of clear liquid or sediment, e.g. optical control [4]  

21
/ 34 • • Regulation of feed distribution; Regulation of liquid level [4]  

Filtration; Filtering material, regeneration thereof (screens or sieves per se B 07 B 1/00) [2]
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