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TREATMENT OF RESIDUES AND PRECIPITATES OF HYDROMET ZINC WINNING BY D C ELECTRIC SMELTING

Ziel

METAL RECOVERY (AG, PB, ZN) FROM WASTE MATERIALS, AND PRODUCTION OF DISPOSABLE RESIDUES.

THIS IS A JOINT PROJECT OF RWTH AACHEN WITH PREUSSAG (005 D) AND BUDELCO (018 NL).

THE RESEARCH WORK CONSISTS OF SEVERAL CONSECUTIVE STEPS:

1) SAMPLE PREPARATION E.G. JAROSITE, PB-AG-RESIDUE, MIXTURE OF BOTH, NEUTRALIZATION RESIDUE (BY BUDELCO AND PREUSSAG),

2) EVALUATION OF PROPERTIES OF FEED MATERIALS (BY BUDELCO, PEUSSAG AND RWTH,)

A. PHASES
B. COMPOSITION
C. PARTICLE SIZE
D. HUMIDITY
E. SO4-DISSOCIATION

3) PREPARATION OF THE FEED FOR SMELTING (BY RWTH)

A. PELLETIZING WITH AND WITHOUT CARBON/LIME
B. DRYING
C. CALCINING AND
D. PRE-REDUCTION

4) SMELTING OF PELLETS (GREEN, CALCINED, PRE-REDUCED, WITH AND WITHOUT CARBON) IN 5 AND 200 KG BATCHES (BY RWTH)

5) PRODUCT ANALYSIS OF METAL, MATTE, SLAG AND FLUE DUTS (BY BUDELCO, PREUSSAG, RWTH)

6) JOINT EVALUATION OF THE ECONOMICS FOR A CHOSEN PROCESSING (BY BUDELCO, PREUSSAG, RWTH).

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Koordinator

AACHEN UNIVERSITY OF TECHNOLOGY
EU-Beitrag
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Adresse
Templergraben 55
52056 AACHEN
Deutschland

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