IPC 6 English version B03C-B03C 9/00

B03C-B03C00900

SECTION B– PERFORMING OPERATIONS; TRANSPORTING

B 03

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 B 01 D 59/00; crushing or disintegrating B 02 C; centrifuges or vortex apparatus for carrying out physical processes B 04) [5]

B 03 C

MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (filters making use of electricity or magnetism B 01 D 35/06; separating isotopes B 01 D 59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B 03 B, B 07 B; separating sheets from piles B 65 H 3/00; magnets or magnet coils per se H 01 F) [5]

Magnetic separation

005

Pretreatment specially adapted for magnetic separation [6]

by addition of magnetic adjuvants [6]

015

by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation [6]

acting directly on the substance being separated [5]

021

Separation using Meissner effect, i.e. deflection of superconductive particles in a magnetic field [6]

023

Separation using Lorentz force, i.e. deflection of electrically charged particles in a magnetic field [6]

025

High gradient magnetic separators [5]

027

with reciprocating canisters [6]

029

with circulating matrix or matrix elements (matrix elements B 03 C 1/034) [6]

rotating, e.g. of the carousel type [5,6]

031

Component parts; Auxiliary operations [6]

032

Matrix cleaning systems [6]

033

characterised by the magnetic circuit [6]

034

characterised by the matrix elements [6]

035

Open gradient magnetic separators, i.e. separators in which the gap is unobstructed, characterised by the configuration of the gap [5]

0355

using superconductive coils [6]

with the material carriers in the form of trays or with tables

with magnets moving during operation

with non-movable magnets

with cylindrical material carriers (B 03 C 1/247 takes precedence) [6]

with magnets moving during operation; with movable pole pieces

with non-movable magnets

with material carriers in the form of belts

with magnets moving during operation

in the form of belts, e.g. cross-belt type

with non-movable magnets

with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp [5]

with material carried by travelling fields [5]

247

obtained by a rotating magnetic drum [6]

253

obtained by a linear motor [6]

with free falling material (B 03 C 1/035 takes precedence) [5]

Magnetic plugs and dipsticks

Combinations with other devices, not otherwise provided for

acting on the medium containing the substance being separated, e.g. magneto-gravimetric-, magnetohydrostatic-, or magnetohydrodynamic separation [5]

Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect

Pretreatment of the gases prior to electrostatic precipitation

011

Prefiltering; Flow controlling [6]

013

Conditioning by chemical additives, e.g. with SO₃ [6]

014

Addition of water; Heat exchange, e.g. by condensation [6]

016

by acoustic or electromagnetic energy, e.g. ultra-violet light [6]

017

Combinations of electrostatic separation with other processes, not otherwise provided for [6]

019

Post-treatment of gases [6]

Plant or installations having external electricity supply (electrode constructions B 03 C 3/40)

dry type

characterised by presence of stationary tube electrodes

characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream

characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream

characterised by presence of electrodes moving during separating action

characterised by separation of ionising and collecting stations

characterised by the additional use of mechanical effects, e.g. gravity (B 03 C 3/32 takes precedence)

145

Inertia [6]

Centrifugal forces [6]

155

Filtration [6]

wet type

Plant or installations without electricity supply, e.g. using electrets

in which electrostatic charge is generated by passage of the gases, i.e. tribo-electricity

Transportable units, e.g. for cleaning room air (room air-conditioners having an electrostatic separating stage F 24 F)

Constructional details or accessories or operation thereof

Controlling flow of gases or vapour

Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation, flames (electrode constructions B 03 C 3/40; ionising gases H 05 H)

Electrode constructions

Ionising-electrodes

radioactive

Collecting-electrodes

flat, e.g. plates, discs, gratings

tubular

Catch-space electrodes, e.g. slotted-box form

Liquid, or liquid-film, electrodes

Use of special materials other than liquids

ceramics

synthetic resins

Applications of electricity supply techniques

Control systems therefor

insulating in electric separators (B 03 C 3/53 takes precedence)

Emergency control systems

Cleaning the electrodes

by using a mechanical vibrator, e.g. rapping gear

by washing

by gas or solid particle blasting

Housings

Protective coatings

Electrode-carrying means (B 03 C 3/40 takes precedence)

Cleaning-out collected particles

Separating dispersed particles from liquids by electrostatic effect (combined with centrifuges B 04 B 5/10) [2]

Separators

Separating solids from solids by electrostatic effect

Separators

with material carriers in the form of trays, troughs, or tables

with cylindrical material carriers

with material carriers in the form of belts

with material falling in cascades

with material falling free

Electrostatic separation not provided for in a single preceding main group