Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/S0048-9697(99)00300-9
Title (Primary) Surfactant separation as a technique for physical and chemical characterization of ore processing residues
Author Prud'homme, F.; Morency, M.; Freyer, K.; Weiß, H. ORCID logo ; Bourne, J.; Daus, B.; Fontaine, D.; Mattusch, J.; Mineau, R.; Preda, M.; Treutler, H.-C.; Wennrich, R.
Source Titel Science of the Total Environment
Year 1999
Department ANA; GWS; PB IBFL
Volume 243/244
Page From 9
Page To 20
Language englisch
Keywords X-ray-diffraction; extraction; sorption; radium; metals; soils

When characterizing multi-phase materials, several authors have recommended separating the material into various fractions consisting of a reduced number of minerals. However, the common separation techniques are of limited value when treating ultra-fine-grained materials. We present in this paper a separation technique using tensio-active solutions which break up any particle agglomerates which may be present and facilitates sedimentation of component particles according to grain size. These fractions have a distinctive mineralogy and chemistry. The technique has been applied to two selected samples from two mining residue sites in Germany. Results from Bielatal, a tin residue, show that a large proportion of the arsenic and heavy metals are concentrated in a suspension fraction, which consists of clay minerals and amorphous iron oxyhydroxides. Silicates such as a micas and feldspar settle out quite rapidly, whereas, other minerals, such as hematite take longer. In the case of Dankritz, a uranium mine waste, the same technique was applied and similar results were obtained for the heavy metals distribution. Additional study indicated that radium is with barite and other radio-isotopes were associated with the fine suspension fraction.

Persistent UFZ Identifier
Prud'homme, F., Morency, M., Freyer, K., Weiß, H., Bourne, J., Daus, B., Fontaine, D., Mattusch, J., Mineau, R., Preda, M., Treutler, H.-C., Wennrich, R. (1999):
Surfactant separation as a technique for physical and chemical characterization of ore processing residues
Sci. Total Environ. 243/244 , 9 - 20 10.1016/S0048-9697(99)00300-9