(0)B01D:0/11:
IPC6
SECTION B - PERFORMING OPERATIONS; TRANSPORTING
SEPARATION
B01D
1/12
<<   >>   B01D001/00 - B01D003/42  

B 01 D

 SEPARATION (separating solids from solids by wet methods B 03 B, B 03 D, by pneumatic jigs or tables B 03 B, by other dry methods B 07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B 03 C; centrifuges, vortex apparatus B 04; presses per se for squeezing-out liquid from liquid-containing material B 30 B 9/02; treatment of water C 02 F, e.g. softening by ion-exchange C 02 F 1/42; arrangement or mounting of filters in air-conditioning, air-humidification or ventilation F 24 F 13/28) [5]
 

Notes

(1)

 This subclass covers:
 

-

 evaporation, distillation, crystallisation, filtration, dust precipitation, gas cleaning, absorption, adsorption;
 

-

 similar processes which are not concerned with, or limited to, separation (except in the case of absorption or adsorption).

(2)

 In this subclass, the terms or expressions are used with the meaning indicated:
 

-

 "filtration" and analogous terms include straining solids from fluids;
 

-

 "filter medium" is a porous material or porous arrangement of material used to filter solids from fluids;
 

-

 "filtering element" is a section of filter medium in addition to parts to which the medium is demountably or permanently fixed, including other sections of medium, end caps, peripheral frames or edge strips, but excluding housings;
 

-

 "filter housing" is the fluid-constraining impervious vessel, whether open or closed, which contains, or is adapted to contain, one or more filtering elements or filter media;
 

-

 "filter chamber" is the space within a housing, where filtering elements or filter media are located. Partitions may divide a single housing into a plurality of chambers;
 

-

 "filtering apparatus" consists of filtering elements combined with housings, cleaning arrangements, motor or the like parts, which are characteristic of the particular type of apparatus. Ancillary devices such as pumps or valves are considered part of a filtering apparatus when inside the apparatus. Ancillary devices performing similar or different unit operation such as comminutors, mixers or non-filtering separators, whether or not inside the apparatus, are not considered part of a filtering apparatus. The term does not extend to apparatus, e.g. washing machines, of which the filter forms only a part.

(3)

 For apparatus used in drying or evaporation, class F 26 takes precedence over this subclass.

(4)

 Group B 01 D 59/00 takes precedence over the other groups of this subclass and over other subclasses.

 

 

 
 

 1
/ 00 Evaporating (removal of incrustation B 08 B; preparation of starch C 08 B 30/00; sugar industry C 13; prevention of incrustation C 23 F; drying solid materials or objects by evaporating liquids therefrom F 26)

1
/ 02 • Evaporators with heating coils  

1
/ 04 • Evaporators with horizontal tubes  

1
/ 06 • Evaporators with vertical tubes  

1
/ 08 • • with short tubes (B 01 D 1/12 takes precedence)  

1
/ 10 • • with long tubes, e.g. Kestner evaporators (B 01 D 1/12 takes precedence)  

1
/ 12 • • and forced circulation  

1
/ 14 • with heated gases or vapours in contact with the liquid  

1
/ 16 • by spraying (B 01 D 1/22 takes precedence)  

1
/ 18 • • to obtain dry solids (B 01 D 1/24 takes precedence)  

1
/ 20 • • Sprayers (in general B 05 B)  

1
/ 22 • by bringing a thin layer of the liquid into contact with a heated surface  

1
/ 24 • • to obtain dry solids  

1
/ 26 • Multiple-effect evaporating  

1
/ 28 • with vapour compression  

1
/ 30 • Accessories for evaporators  
 

 3
/ 00 Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping (gas chromatography B 01 D 15/08; destructive distillation C 10 B; preparation of alcoholic beverages by distillation C 12 G 3/12) [2]

3
/ 02 • in boilers or stills [2]  

3
/ 04 • pipe stills  

3
/ 06 • Flash distillation [2]  

3
/ 08 • in rotating vessels; Atomisation on rotating discs (B 01 D 3/10 takes precedence)  

3
/ 10 • Vacuum distillation (B 01 D 3/12 takes precedence) [2]  

3
/ 12 • Molecular distillation [2]  

3
/ 14 • Fractional distillation  

3
/ 16 • • Fractionating columns in which vapour bubbles through liquid (packing elements B 01 J 19/30, B 01 J 19/32)  

3
/ 18 • • • with horizontal bubble plates  

3
/ 20 • • • • Bubble caps; Risers for vapour; Discharge pipes for liquid  

3
/ 22 • • • with horizontal sieve plates or grids; Construction of sieve plates or grids  

3
/ 24 • • • with sloping plates or elements mounted stepwise  

3
/ 26 • • Fractionating columns in which vapour and liquid flow pass each other, or in which the fluid is sprayed into the vapour, or in which a two-phase mixture is passed in one direction  

3
/ 28 • • • Fractionating columns with surface contact and vertical guides, e.g. film action  

3
/ 30 • • Fractionating columns with movable parts or in which centrifugal movement is caused  

3
/ 32 • • Other features of fractionating columns  

3
/ 34 • with one or more auxiliary substances  

3
/ 36 • • Azeotropic distillation  

3
/ 38 • • Steam distillation  

3
/ 40 • • Extractive distillation  

3
/ 42 • Regulation; Control  
<< >>
1 1 12