B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
  
SEPARATING; MIXING
 B01 - 
B09

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:
    It should also be noted that the separation of isotopes of the same chemical element is covered by B01D 59/00, whatever process or apparatus is employed.
  4. The following scheme illustrates the classification according to these rules.

 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]
 B03D
FLOTATION; DIFFERENTIAL SEDIMENTATION (sedimentation in general B01D 21/00; in combination with other separation of solids B03B; sink-float separation B03B 5/28; detergents, soaps C11D)
 B03D 1/00
Flotation (conditioning for flotation, general arrangement of plant B03B)
 B03D 1/001 - 
B03D 1/001

Note(s)

  1. In groups B03D 1/001-B03D 1/018, in the absence of an indication to the contrary, an invention is classified in the last appropriate place. [5]
  2. In groups B03D 1/001-B03D 1/018, it is desirable to add the appropriate indexing code(s) from each of groups B03D 101/00 and B03D 103/00. The indexing codes should be unlinked. [5]
 B03D 1/001
·  Flotation agents (conditioners B03B 1/00)  [5]
 B03D 1/002
·  ·  Inorganic compounds  [5]
 B03D 1/004
·  ·  Organic compounds  [5]
 B03D 1/006
·  ·  ·  Hydrocarbons  [5]
 B03D 1/008
·  ·  ·  containing oxygen  [5]
 B03D 1/01
·  ·  ·  containing nitrogen  [5]
 B03D 1/012
·  ·  ·  containing sulfur  [5]
 B03D 1/014
·  ·  ·  containing phosphorus  [5]
 B03D 1/016
·  ·  ·  Macromolecular compounds  [5]
 B03D 1/018
·  ·  Mixtures of inorganic and organic compounds  [5]
 B03D 1/02
·  Froth-flotation processes
 B03D 1/04
·  ·  by varying ambient atmospheric pressure
 B03D 1/06
·  ·  differential
 B03D 1/08
·  Subsequent treatment of concentrated product (froth dispersion B01D 19/02)
 B03D 1/10
·  ·  Removing adhering liquid from separated materials (processes or devices capable of general use B01D)
 B03D 1/12
·  Agent recovery
 B03D 1/14
·  Flotation machines (devices for feeding measured quantities of reagents B01J 4/02; flotation apparatus for enzymology or microbiology C12M 1/09)
 B03D 1/16
·  ·  with impellers; Subaeration machines
 B03D 1/18
·  ·  ·  without air supply
 B03D 1/20
·  ·  ·  with internal air pumps
 B03D 1/22
·  ·  ·  with external blowers
 B03D 1/24
·  ·  Pneumatic
 B03D 1/26
·  ·  ·  Air lift machines
 B03D 3/00
Differential sedimentation
 B03D 3/02
·  Coagulation
 B03D 3/04
·  ·  assisted by vibrations
 B03D 3/06
·  Flocculation
 B03D 101/00 - 
B03D 103/00
Indexing scheme associated with groups B03D 1/001-B03D 1/018, relating to the effects produced and the materials treated. The indexing codes should be unlinked.  [5]
 B03D 101/00
Specified effects produced by the flotation agents  [5]
 B03D 101/02
·  Collectors  [5]
 B03D 101/04
·  Frothers  [5]
 B03D 101/06
·  Depressants  [5]
 B03D 103/00
Specified materials treated by the flotation agents  [5]
 B03D 103/02
·  Ores  [5]
 B03D 103/04
·  ·  Non-sulfide ores  [5]
 B03D 103/06
·  ·  ·  Phosphate ores  [5]
 B03D 103/08
·  ·  ·  Coal ores  [5]
 B03D 103/10
·  ·  ·  Potassium ores  [5]