Enriquecimiento de menas grafíticas venezolanas mediante separación electrostática y flotación directa

C. di Yorio; F. García-Carcedo; A. Hernández; N. Ayala; N. Cornejo

doi:10.3989/revmetalm.1998.v34.iExtra.782

Beneficiation of Venezuelan graphitic ore through electrostatic separation and direct flotation

Authors

C. di Yorio Dpto. de Metalurgia Química. Escuela de Metalurgia. Fac. de Ingeniería. Univ. Central de Venezuela
F. García-Carcedo Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
A. Hernández Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
N. Ayala Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
N. Cornejo Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)

DOI:

https://doi.org/10.3989/revmetalm.1998.v34.iExtra.782

Keywords:

Graphite, Minerals separation, Concentration

Abstract

Graphite is an useful material in the modern industry. In Venezuela, the ore contains 8 to 14 % of graphite from Cerro Osumita, Edo Cojedes, with enough reserves for exploitation. Samples from this deposit were characterized and tests of electrostatic and flotation were carried out. The electrical potential and velocity of drum were varied for two different size fractions. Kerosene, sodium silicate as depressant and pulp agitation were varied. The results indicate the important of size for the separation. Size below 0.5 mm is necessary. For good quality fixed carbon an electrical potential up to 15 kV and 0.02 g of kerosene is recommended.

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Published

1998-05-30

How to Cite

di Yorio, C., García-Carcedo, F., Hernández, A., Ayala, N., & Cornejo, N. (1998). Beneficiation of Venezuelan graphitic ore through electrostatic separation and direct flotation. Revista De Metalurgia, 34(Extra), 409–412. https://doi.org/10.3989/revmetalm.1998.v34.iExtra.782

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Issue

Vol. 34 No. Extra (1998)

Section

Articles

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