caa a22 4500 467889899 CHVBK 20180406152745.0 cr unu---uuuuu 170328e20061001xx s 000 0 eng 10.1007/s00710-005-0115-3 doi (NATIONALLICENCE)springer-10.1007/s00710-005-0115-3 Analysis of uranium-bearing Fe-phosphide from a submerged arc furnace for phosphorus production [Elektronische Daten] [J. H. L. Voncken, E. Scheepers, Y. Yang] Summary: During a study on the Fe-phosphide phase formed during phosphorus production in a submerged arc furnace, a sample of ferrophosphorus was found which contains a so far unknown uranium-bearing Fe-phosphide. Uranium, as well as other trace metals like Mn, V, Cr, Ni, Zr, originates from the apatite ore used. Ti originates partly from the silica and coke used in the reduction process, but mainly from the clay used to produce ore pellets. In this paper the ferrophosphorus is described with respect to composition and crystalline compounds present. The crystallization sequence is discussed with respect to the FeP-phase diagram. The main phases found in the ferrophosphorus are FeP and Fe2P. With respect to trace and minor metals, it is observed that Si preferably enters the FeP-phase, whereas Ti, V, Cr, Mn and Ni preferably enter the Fe2P-phase, which is an analogue of the mineral barringerite. This study gives some insight into the behavior of impurities during crystallization of an iron-rich Fe-phosphide melt. The uranium-bearing phase has an overall Me2P-stoichiometry (Fe1.59, Ti0.06, V0.03, Cr0.02, Mn0.06, Ni0.02, U0.15, Zr0.09)2.02 (P0.96, Si0.02)0.98. An X-ray diffraction pattern of this phase is given for identification purposes. Springer-Verlag, 2006 Voncken J. H. L. Department of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands aut Scheepers E. Department of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands aut Yang Y. Department of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands aut Mineralogy and Petrology Springer-Verlag 88/3-4(2006-10-01), 407-418 0930-0708 88:3-4<407 2006 88 710 https://doi.org/10.1007/s00710-005-0115-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00710-005-0115-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Voncken J. H. L. Department of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands aut NATIONALLICENCE 700 1- Scheepers E. Department of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands aut NATIONALLICENCE 700 1- Yang Y. Department of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands aut NATIONALLICENCE 773 0- Mineralogy and Petrology Springer-Verlag 88/3-4(2006-10-01), 407-418 0930-0708 88:3-4<407 2006 88 710 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer