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:
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.
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).
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; [5]
"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; [5]
"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; [5]
"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; [5]
"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. [5]
Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (Fulltext... Hierarchy... Expanded...B01D 27/00 takes precedence) [5]
B01D 24/02
·
with the filter bed stationary during the filtration [5]
integrally combined with devices for controlling the filtration [5]
B01D 29/62
·
Regenerating the filter material in the filter (devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration, Fulltext... Hierarchy... Expanded...B01D 35/00) [5]
with filtering bands or the like supported on cylinders which are impervious for filtering [5]
B01D 33/044
·
with filtering bands or the like supported on cylinders which are pervious for filtering (presses per se for squeezing out liquid using an endless pressing band Fulltext... Hierarchy... Expanded...B30B 9/02) [5]
Regenerating the filter material in the filter (devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration, Fulltext... Hierarchy... Expanded...B01D 35/00) [5]
P:240
B01D 35/00
Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
Filter circuits or combinations of filters with other separating devices (devices for the removal of gas, e.g. air purge systems, Fulltext... Hierarchy... Expanded...B01D 35/00) [4,5]
Separation of different isotopes of the same chemical element
B01D 61/00 - B01D 71/00
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus specially adapted therefor; Semi-permeable membranes or their production [5]
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor (separation of gases or vapours by diffusion Fulltext... Hierarchy... Expanded...B01D 53/22) [5]
Apparatus in general for separation processes using semi-permeable membranes [5]
B01D 63/02
·
Hollow fibre modules [5]
B01D 63/04
· ·
comprising multiple hollow fibre assemblies [5]
B01D 63/06
·
Tubular membrane modules [5]
B01D 63/08
·
Flat membrane modules [5]
B01D 63/10
·
Spiral-wound membrane modules [5]
B01D 63/14
·
Pleat-type membrane modules [5]
B01D 63/16
·
Rotary, reciprocated or vibrated modules [5]
P:120
B01D 65/00
Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes [5]
P:110
B01D 67/00
Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus [5]
P:100
B01D 69/00
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor [5]
B01D 69/00
Note(s)
In this group, the following term is used with the meaning indicated:
"properties" covers those of a mechanical, physical or chemical nature. [5]