| 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 of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges B04B; vortex apparatus B04C; presses per se for squeezing-out liquid from liquid-containing material B30B 9/02)[5]
|
|
Note(s)
This subclass covers :[5]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. Filtration is a process that normally uses a filter medium;"filter medium" is a porous material or porous arrangement of material used to filter solids from fluids;"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;"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;"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;"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. For apparatus used in drying or evaporation, class F26 takes precedence over this subclass.Group B01D 59/00 takes precedence over the other groups of this subclass and over other subclasses in class B01.
|
|
Subclass indexes
EVAPORATION; DISTILLATION; SUBLIMATION | 1/00; 3/00; 5/00; 7/00 | COLD TRAPS, COLD BAFFLES | 8/00 | CRYSTALLISATION | 9/00 | SOLVENT EXTRACTION | 11/00 | TREATING LIQUIDS: DISPLACEMENT, ADSORPTION, SEPARATION, DEGASIFICATION, CHROMATOGRAPHY | 12/00, 15/00, 17/00, 19/00 | TREATING GASES OR VAPOURS: SEPARATION, RECOVERING, CHEMICAL OR BIOLOGICAL PURIFICATION OF WASTE GASES | 53/00 | SEPARATION OF SUSPENDED PARTICLES FROM LIQUIDS | By sedimentation | 21/00 | By filtration | processes | 37/00 | gravity filters; filters formed from filtering elements, pressure or suction filters | 24/00; 25/00, 29/00 | cartridge filters | 27/00 | filters with mobile filtering elements | 33/00 | filtering devices | 35/00 | filter circuits or combinations | 36/00 | By other processes | 43/00 | SEPARATION OF DISPERSED PARTICLES FROM GASES OR VAPOURS | Pretreatment of the gas or vapour | 51/00 | By gravity, inertia, centrifugal force; by filtration; by a combination of devices | 45/00; 46/00; 50/00 | By other methods | 47/00, 49/00 | FILTERING MATERIALS | 39/00, 41/00 | SEPARATION OF ISOTOPES | 59/00 | ABSORPTION, ADSORPTION, CHROMATOGRAPHY; OTHER SEPARATING METHODS | 15/00, 15/08, 53/02, 53/14; 57/00 | SEPARATION USING SEMI-PERMEABLE MEMBRANES; DIALYSIS, OSMOSIS, ULTRAFILTRATION | 61/00-71/00 |
|