B
SECTION B — PERFORMING OPERATIONS
  
SEPARATING AND MIXING
 B01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL (furnaces, kilns, ovens, retorts, in general F27)
 B01B
BOILING; BOILING APPARATUS

 B01D
SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation B03C; centrifuges, vortex apparatus B04)
 B01D

Note(s)

  1. The processes covered by this sub-class include evaporation, distillation, crystallisation, filtration, dust precipitation, gas cleaning, absorption, adsorption.
  2. This sub-class also includes similar processes which are not concerned with, or limited to, separation (except in the case of absorption or adsorption).
  3. The word "filtration" and related words should be interpreted as embracing straining liquids from solids.
  4. For apparatus used in drying or evaporation, F26 takes precedence over B01D.
  5. The following note is of interest in considering the sub-divisions of this sub-class:

    Group B01D 59/00 takes precedence over the other groups of this sub-class and over other sub-classes.


 B01F
MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
 B01F

Note(s)

The term "mixing" also covers stirring of a single material.


 B01J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS (processes or apparatus for specific applications, see the relevant classes for these processes or apparatus)
 B01J

Note(s)

  1. The term "solid particles" is to be read as covering such particles whether catalysts,
  2. "Fluidised particles" are to be understood as finely divided solid particles lifted and agitated by a stream of fluid.
  3. "Fluidised-bed technique" relates to fluid-solid contacting technique in which finely divided particles are lifted and agitated by a rising stream of fluid, said stream having such a speed as to form a lower dense phase (the "bed") and an upper dilute fluidised phase of "fluidised particles".

 B01K
ELECTROCHEMICAL PROCESSES OR APPARATUS IN GENERAL (electrodialysis, electro-osmosis B01D 13/02; isotope separation by electrochemical methods B01D 59/38; electrothermal production of metals C22B 4/00; electrolysis or electrophoresis C25)

 B01L
CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE (apparatus for medical and pharmaceutical purposes A61; apparatus for industrial purposes and laboratory apparatus whose construction and performance are comparable to that of similar industrial apparatus, see the relevant classes for industrial apparatus, particularly sub-classes of B01 and C12; separating or distilling apparatus B01D; mixing or stirring devices B01F; atomisers B05B; vibrating devices, e.g. shaking tables B06B; sieves B07B; corks, bungs B65D; handling liquids in general B67; vacuum pumps F04; siphons F04F 10/00; taps, stop-cocks F16K; tubes, tube joints F16L; apparatus specially adapted for investigating and analysing materials G01, particularly G01N; electrical or optical apparatus, see appropriate classes in Sections G and H)
 B01L

Note(s)

This sub-class is intended to take only laboratory apparatus which is either applicable solely to laboratory purposes or which, by reason of its simple construction and adaptability, is such as would not be suitable for industrial use.