ELECTRIC SORTING BY MEANS OF CORONA DISCHARGE

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United States of America Patent

APP PUB NO 20130175371A1
SERIAL NO

13809026

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for separating a particle mixture into a first and second fraction, the first fraction of particles having an electrical conductivity greater than the particles of the second fraction, by a) ionizing air to have the same polarity with a corona electrode; b) mixing the ionized air with a fluidized particle mixture containing two particle fractions with different electrical conductivities, to obtain a fluidized particle mixture ionized to have the same polarity; d) precipitating particles of the second fraction from the particle mixture on a collection electrode moving relative to the particle mixture, where the collection electrode is grounded or has an opposite charge to the corona electrode; e) removing particles adhered to the collection electrode as the second fraction; and f) obtaining the first fraction from particles of the particle mixture which do not adhere to the collection electrode.

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Patent Owner(s)

Patent OwnerAddress
EVONIK DEGUSSA GMBHRELLINGHAUSER STRASSE 1-11 ESSEN 45128
STEAG POWER MINERALS GMBHDUISBURGER STRASSE 170 DINSLAKEN 46535

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benscheidt, Nicola Braunschweig, DE 1 1
Berghahn, Matthias Moers, DE 5 44
Borchers, Frank Dortmund, DE 3 4
Nordhoff, Stefan Recklinghausen, DE 18 305
Schaack, Senada Frankfurt am Main, DE 3 7
Stenner, Patrik Hanau, DE 23 82

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