B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
  
SEPARATING; MIXING
 B01 - 
B07

Note(s)

The following notes are meant to assist in the use of this part of the classification scheme; they must not be read as modifying in any way the elaborations.

  1. In this sub-section, the separation of different materials, e.g. of different matter, size, or state, is predominantly found in the following subclasses:

    B01D

    B03B, B03C, B03D

    B04B, B04C

    B07B, B07C.

  2. The classifying characteristics of these subclasses are:
    1. the physical state of the matter to be separated;
    2. the principle of the process used;
    3. particular kinds of apparatus.
    The first of these characteristics involves six different aspects, assembled in three groups:
    1. liquid/liquid or liquid/gas and gas/gas;
    2. solid/liquid or solid/gas;
    3. solid/solid.
  3. These subclasses are to be used according to the following general rules:

 B01 - 
B07
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION
Method
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/LIQUID OR SOLID/GAS SEPARATION
Method
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/SOLID SEPARATION
Method
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB07B
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
Apparatus
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB04B, B04C
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
 B03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B01D 59/00; crushing or disintegrating B02C; centrifuges or vortex apparatus for carrying out physical processes B04)  [5]
 B03C
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (filters making use of electricity or magnetism B01D 35/06; separating isotopes B01D 59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B03B, B07B; separating sheets from piles B65H 3/00; magnets or magnet coils per se H01F)  [5]
P:10 B03C 1/00
Magnetic separation
 B03C 1/005
·  Pretreatment specially adapted for magnetic separation  [6]
 B03C 1/01
·  ·  by addition of magnetic adjuvants  [6]
 B03C 1/015
·  ·  by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation  [6]
 B03C 1/02
·  acting directly on the substance being separated  [5]
 B03C 1/021
·  ·  Separation using Meissner effect, i.e. deflection of superconductive particles in a magnetic field  [6]
 B03C 1/023
·  ·  Separation using Lorentz force, i.e. deflection of electrically charged particles in a magnetic field  [6]
 B03C 1/025
·  ·  High gradient magnetic separators  [5]
 B03C 1/027
·  ·  ·  with reciprocating canisters  [6]
 B03C 1/029
·  ·  ·  with circulating matrix or matrix elements (matrix elements B03C 1/034)  [6]
 B03C 1/03
·  ·  ·  ·  rotating, e.g. of the carousel type  [5,6]
 B03C 1/031
·  ·  ·  Component parts; Auxiliary operations  [6]
 B03C 1/032
·  ·  ·  ·  Matrix cleaning systems  [6]
 B03C 1/033
·  ·  ·  ·  characterised by the magnetic circuit  [6]
 B03C 1/034
·  ·  ·  ·  ·  characterised by the matrix elements  [6]
 B03C 1/035
·  ·  Open gradient magnetic separators, i.e. separators in which the gap is unobstructed, characterised by the configuration of the gap  [5]
 B03C 1/0355
·  ·  ·  using superconductive coils  [6]
 B03C 1/04
·  ·  with the material carriers in the form of trays or with tables
 B03C 1/06
·  ·  ·  with magnets moving during operation
 B03C 1/08
·  ·  ·  with non-movable magnets
 B03C 1/10
·  ·  with cylindrical material carriers (B03C 1/247 takes precedence)  [6]
 B03C 1/12
·  ·  ·  with magnets moving during operation; with movable pole pieces
 B03C 1/14
·  ·  ·  with non-movable magnets
 B03C 1/16
·  ·  with material carriers in the form of belts
 B03C 1/18
·  ·  ·  with magnets moving during operation
 B03C 1/20
·  ·  ·  ·  in the form of belts, e.g. cross-belt type
 B03C 1/22
·  ·  ·  with non-movable magnets
 B03C 1/23
·  ·  with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp  [5]
 B03C 1/24
·  ·  ·  with material carried by travelling fields  [5]
 B03C 1/247
·  ·  ·  ·  obtained by a rotating magnetic drum  [6]
 B03C 1/253
·  ·  ·  ·  obtained by a linear motor  [6]
 B03C 1/26
·  ·  with free falling material (B03C 1/035 takes precedence)  [5]
 B03C 1/28
·  ·  Magnetic plugs and dipsticks
 B03C 1/30
·  ·  Combinations with other devices, not otherwise provided for
 B03C 1/32
·  acting on the medium containing the substance being separated, e.g. magneto-gravimetric-, magnetohydrostatic-, or magnetohydrodynamic separation  [5]
P:20 B03C 3/00
Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect (exhaust or silencing apparatus for machines or engines having means for removing solid constituents of exhaust, using electric or electrostatic separators F01N 3/01)
 B03C 3/01
·  Pretreatment of the gases prior to electrostatic precipitation
 B03C 3/011
·  ·  Prefiltering; Flow controlling  [6]
 B03C 3/013
·  ·  Conditioning by chemical additives, e.g. with SO3  [6]
 B03C 3/014
·  ·  Addition of water; Heat exchange, e.g. by condensation  [6]
 B03C 3/016
·  ·  by acoustic or electromagnetic energy, e.g. ultra-violet light  [6]
 B03C 3/017
·  Combinations of electrostatic separation with other processes, not otherwise provided for  [6]
 B03C 3/019
·  Post-treatment of gases  [6]
 B03C 3/02
·  Plant or installations having external electricity supply (electrode constructions B03C 3/40)
 B03C 3/04
·  ·  dry type
 B03C 3/06
·  ·  ·  characterised by presence of stationary tube electrodes
 B03C 3/08
·  ·  ·  characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
 B03C 3/09
·  ·  ·  characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream
 B03C 3/10
·  ·  ·  characterised by presence of electrodes moving during separating action
 B03C 3/12
·  ·  ·  characterised by separation of ionising and collecting stations
 B03C 3/14
·  ·  ·  characterised by the additional use of mechanical effects, e.g. gravity (B03C 3/32 takes precedence)
 B03C 3/145
·  ·  ·  ·  Inertia  [6]
 B03C 3/15
·  ·  ·  ·  Centrifugal forces  [6]
 B03C 3/155
·  ·  ·  ·  Filtration  [6]
 B03C 3/16
·  ·  wet type
 B03C 3/28
·  Plant or installations without electricity supply, e.g. using electrets
 B03C 3/30
·  ·  in which electrostatic charge is generated by passage of the gases, i.e. tribo-electricity
 B03C 3/32
·  Transportable units, e.g. for cleaning room air (room air-conditioners having an electrostatic separating stage F24F)
 B03C 3/34
·  Constructional details or accessories or operation thereof
 B03C 3/36
·  ·  Controlling flow of gases or vapour
 B03C 3/38
·  ·  Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation, flames (electrode constructions B03C 3/40; ionising gases H05H)
 B03C 3/40
·  ·  Electrode constructions
 B03C 3/41
·  ·  ·  Ionising-electrodes
 B03C 3/43
·  ·  ·  ·  radioactive
 B03C 3/45
·  ·  ·  Collecting-electrodes
 B03C 3/47
·  ·  ·  ·  flat, e.g. plates, discs, gratings
 B03C 3/49
·  ·  ·  ·  tubular
 B03C 3/51
·  ·  ·  ·  Catch-space electrodes, e.g. slotted-box form
 B03C 3/53
·  ·  ·  ·  Liquid, or liquid-film, electrodes
 B03C 3/60
·  ·  ·  Use of special materials other than liquids
 B03C 3/62
·  ·  ·  ·  ceramics
 B03C 3/64
·  ·  ·  ·  synthetic resins
 B03C 3/66
·  ·  Applications of electricity supply techniques
 B03C 3/68
·  ·  ·  Control systems therefor
 B03C 3/70
·  ·  ·  insulating in electric separators (B03C 3/53 takes precedence)
 B03C 3/72
·  ·  Emergency control systems
 B03C 3/74
·  ·  Cleaning the electrodes
 B03C 3/76
·  ·  ·  by using a mechanical vibrator, e.g. rapping gear
 B03C 3/78
·  ·  ·  by washing
 B03C 3/80
·  ·  ·  by gas or solid particle blasting
 B03C 3/82
·  ·  Housings
 B03C 3/84
·  ·  ·  Protective coatings
 B03C 3/86
·  ·  Electrode-carrying means (B03C 3/40 takes precedence)
 B03C 3/88
·  ·  Cleaning-out collected particles
P:30 B03C 5/00
Separating dispersed particles from liquids by electrostatic effect (combined with centrifuges B04B 5/10)  [2]
 B03C 5/02
·  Separators
P:40 B03C 7/00
Separating solids from solids by electrostatic effect
 B03C 7/02
·  Separators
 B03C 7/04
·  ·  with material carriers in the form of trays, troughs, or tables
 B03C 7/06
·  ·  with cylindrical material carriers
 B03C 7/08
·  ·  with material carriers in the form of belts
 B03C 7/10
·  ·  with material falling in cascades
 B03C 7/12
·  ·  with material falling free
P:0 B03C 9/00
Electrostatic separation not provided for in any single one of the other main groups of this subclass
P:50 B03C 11/00
Separation by high-voltage electrical fields, not provided for in other groups of this subclass  [8]