Global Patent Index - EP 2411155 B1

EP 2411155 B1 20190626 - METHOD FOR ELECTROSTATICALLY SEPARATING A GRANULE MIXTURE MADE OF DIFFERENT MATERIALS, AND DEVICE FOR IMPLEMENTING THE SAME

Title (en)

METHOD FOR ELECTROSTATICALLY SEPARATING A GRANULE MIXTURE MADE OF DIFFERENT MATERIALS, AND DEVICE FOR IMPLEMENTING THE SAME

Title (de)

VERFAHREN ZUR ELEKTROSTATISCHEN TRENNUNG EINES AUS VERSCHIEDENEN MATERIALIEN HERGESTELLTEN GRANULATGEMISCHES UND IMPLEMENTIERUNGSVORRICHTUNG DAFÜR

Title (fr)

PROCÉDÉ DE SÉPARATION ÉLECTROSTATIQUE D'UN MÉLANGE DE GRANULES DE MATÉRIAUX DIFFÉRENTS ET DISPOSITIF DE MISE EN OEUVRE

Publication

EP 2411155 B1 20190626 (FR)

Application

EP 10726143 A 20100323

Priority

  • FR 2010000245 W 20100323
  • FR 0901494 A 20090327

Abstract (en)

[origin: WO2010109096A1] The present invention provides a method and a device for electrostatically separating polyvalent granular insulating materials that have good properties, are energy efficient, and easily adapt to ambient atmospheric conditions and to the physiochemical properties of the granules to be separated. The invention relates to a method including the following steps: a) injecting a current of air between two electrodes in a separation chamber defined by walls and having an air inlet and outlet; b) placing the granule mixture, made of different materials, into the air current; c) controlling the air current so that the granules levitate in the air current in a turbulent mode and become electrically charged by means of the contact therebetween and/or by means of the contact with the walls of the separation chamber; d) generating an electric field between two electrodes, substantially perpendicular to the direction of the air current, such that the charged granules in step c) move, either in the direction of the electric field if the granules are positively charged or in the opposite direction if the charge thereof is negative; e) adhering the charged granules to the surface of the electrodes; and f) discharging and collecting the granules adhering to each electrode.

IPC 8 full level

B03C 7/12 (2006.01); B03C 3/14 (2006.01); B03C 3/30 (2006.01); B03C 3/36 (2006.01); B03C 7/00 (2006.01)

CPC (source: EP US)

B03C 3/14 (2013.01 - EP US); B03C 3/30 (2013.01 - EP US); B03C 3/368 (2013.01 - EP US); B03C 7/006 (2013.01 - EP US); B03C 7/12 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

WO 2010109096 A1 20100930; CA 2756629 A1 20100930; CA 2756629 C 20160628; CN 102421530 A 20120418; CN 102421530 B 20150819; EP 2411155 A1 20120201; EP 2411155 B1 20190626; FR 2943561 A1 20101001; FR 2943561 B1 20110520; JP 2012521866 A 20120920; JP 5661097 B2 20150128; KR 101736362 B1 20170516; KR 20120014130 A 20120216; MY 160936 A 20170331; US 2012085683 A1 20120412; US 8541709 B2 20130924

DOCDB simple family (application)

FR 2010000245 W 20100323; CA 2756629 A 20100323; CN 201080017973 A 20100323; EP 10726143 A 20100323; FR 0901494 A 20090327; JP 2012501342 A 20100323; KR 20117025345 A 20100323; MY PI2011004604 A 20100323; US 201013259874 A 20100323