|  | 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. In this sub-section, the separation of different materials, e.g. of different matter, size, or state, is predominantly found in the following subclasses: Fulltext... Hierarchy... Expanded...B01D Fulltext... Hierarchy... Expanded...B03B, Fulltext... Hierarchy... Expanded...B03C, Fulltext... Hierarchy... Expanded...B03D Fulltext... Hierarchy... Expanded...B04B, Fulltext... Hierarchy... Expanded...B04C, Fulltext... Hierarchy... Expanded...B07B, Fulltext... Hierarchy... Expanded...B07C. The classifying characteristics of these subclasses are: the physical state of the matter to be separated; the principle of the process used; particular kinds of apparatus. The first of these characteristics involves six different aspects, assembled in three groups: liquid/liquid or liquid/gas and gas/gas; solid/liquid or solid/gas; solid/solid. These subclasses are to be used according to the following general rules: Fulltext... Hierarchy... Expanded...B01D is the most general class as far as separation other than solids from solids is concerned. Apparatus for separating solids from solids are covered by Fulltext... Hierarchy... Expanded...B03B when the process concerned is regarded as the equivalent of ''washing'' in the sense of the mining art, even if such apparatus is a pneumatic one, especially pneumatic tables or jigs. Screens per se are not covered by this subclass but are classified in Fulltext... Hierarchy... Expanded...B07B, even if they are being used in a wet process. All other apparatus for the separation of solids from solids according to dry methods are classified in Fulltext... Hierarchy... Expanded...B07B. If the separation takes place as a result of the detection or measurement of some feature of the material or articles to be sorted it is classified in Fulltext... Hierarchy... Expanded...B07C. It should also be noted that the separation of isotopes of the same chemical element is covered by Fulltext... Hierarchy... Expanded...B01D 59/00, whatever process or apparatus is employed. 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 Fulltext... Hierarchy... Expanded...B01D 59/00; crushing or disintegrating Fulltext... Hierarchy... Expanded...B02C; centrifuges or vortex apparatus for carrying out physical processes Fulltext... Hierarchy... Expanded...B04) [5]

|  | B03D |
FLOTATION; DIFFERENTIAL SEDIMENTATION (sedimentation in general Fulltext... Hierarchy... Expanded...B01D 21/00; in combination with other separation of solids Fulltext... Hierarchy... Expanded...B03B; sink-float separation Fulltext... Hierarchy... Expanded...B03B 5/28; detergents, soaps Fulltext... Hierarchy... Expanded...C11D)

|  | B03D 1/00 |
Flotation (conditioning for flotation, general arrangement of plant Fulltext... Hierarchy... Expanded...B03B)

|  | B03D 1/001 - B03D 1/001 |
Note(s) In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...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] In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B03D 1/001-B03D 1/018, it is desirable to add the appropriate indexing code(s) from each of groups Fulltext... Hierarchy... Expanded...B03D 101/00 and Fulltext... Hierarchy... Expanded...B03D 103/00. The indexing codes should be unlinked. [5]

|  | B03D 1/001 |
· | Flotation agents (conditioners Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...B01D 19/02)

|  | B03D 1/10 |
· · | Removing adhering liquid from separated materials (processes or devices capable of general use Fulltext... Hierarchy... Expanded...B01D)

|  | B03D 1/12 |
· | Agent recovery

|  | B03D 1/14 |
· | Flotation machines (devices for feeding measured quantities of reagents Fulltext... Hierarchy... Expanded...B01J 4/02; flotation apparatus for enzymology or microbiology Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...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]