PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1979000622) IMPROVEMENTS IN OR RELATING TO METHODS AND APPARATUS FOR SEPARATING MIXTURES OF PARTICULATE SOLIDS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000622 International Application No.: PCT/GB1979/000032
Publication Date: 06.09.1979 International Filing Date: 14.02.1979
IPC:
B03B 5/44 (2006.01) ,B03C 1/32 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
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
B
SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
5
Washing granular, powdered or lumpy materials; Wet separating
28
by sink-float separation
30
using heavy liquids or suspensions
44
Application of particular media therefor
B PERFORMING OPERATIONS; TRANSPORTING
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
C
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
1
Magnetic separation
32
acting on the medium containing the substance being separated, e.g. magneto-gravimetric-, magnetohydrostatic-, or magnetohydrodynamic separation
Applicants:
Inventors:
Priority Data:
5857/7814.02.1978GB
Title (EN) IMPROVEMENTS IN OR RELATING TO METHODS AND APPARATUS FOR SEPARATING MIXTURES OF PARTICULATE SOLIDS
(FR) AMELIORATIONS AUX METHODES ET APPAREILS DE SEPARATION DE MELANGES DE PARTICULES SOLIDES, OU S"Y RAPPORTANT
Abstract:
(EN) Such mixtures are separated by introducing them to a suspension of magnetic particles in liquid, the particles being of such size that they would tend to flocculate if exposed to a simple constant or alternating magnetic field. Flocculation is however inhibited by causing the particles to spin, a magnetic fluid may be applied to enhance the density of the fluid relative to the mixture, and different constituents of the mixture either float or sink and are separately collected. The spin may be imparted by a travelling or rotating magnetic field, which may also serve as the means for creating the enhanced relative density. The travelling field may be provided by a linear magnetic stator (6) with polyphase windings excited from a suitable AC supply (7).
(FR) De tels melanges sont separes en les introduisant dans une suspension de particules magnetiques en milieu liquide, les particules ayant des dimensions telles qu"elles auraient tendance a floculer si elles etaient soumises a un simple champ magnetique constant ou alternatif. On inhibe cependant la floculation en imprimant aux particules un mouvement de rotation; on peut utiliser un fluide magnetique pour augmenter la densite du fluide par rapport au melange. Les differents constituants du melange flottent ou coulent et sont recuperes separement. La rotation peut etre induite par un champ en translation ou tournant, qui peut aussi servir pour obtenir la densite relative accrue. Le champ en translation etre fourni par un stator magnetique lineaire (6) avec des enroulements polyphases excites par une alimentation en courant alternatif approprie (7).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)