Abstract
THE usual methods for concentration of minerals from rocks by means of magnetic separation, heavy liquids, etc., do not always give satisfactory results. In some of these cases it is known that a good separation can be obtained using differences in the dielectric properties of minerals1,2. Briefly, the separation is based on the principle that, in a non-homogeneous electric field, particles with a higher dielectric constant than that of the medium in which they are immersed tend to migrate from a zone of low field strength into a zone of high field strength. Likewise, particles of lower dielectric constant than the medium are repelled into a zone of low field strength.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Milner, H. B., Sedimentpetrography, 1, 200 (George Allen and Unwin, London, 1962).
Ralston, O. C., Electrostatic Separation of Mixed Granular Solids (Elsevier Publishing Co., Amsterdam, 1961).
Maijer, C., Geological investigation of the Amarante Region (Northern Portugal) with special reference to the mineralogy of the cassiterite-bearing albite pegmatites, thesis, Univ. Amsterdam, 1965.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
VERSCHURE, R., IJLST, L. Apparatus for Continuous Dielectric-medium Separation of Mineral Grains. Nature 211, 619–620 (1966). https://doi.org/10.1038/211619b0
Issue Date:
DOI: https://doi.org/10.1038/211619b0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
