Rare Earth Elements Resources and Different Recovery Techniques from #Egyptian Ores by Hesham M Kamal in BJSTR
Abstract
In fact, bastnaesite, monazite and xenotime are the most
important rare earth-bearing minerals known as sources for
extraction of rare earths by hydrometallurgical approaches to
produce intermediate products in the form of rare earth-chlorides,
fluorides, halides, and oxides. In the following paragraphs I will
summarize some of the rare earth elements extraction using
variety of their extraction techniques from some treated Egyptianores. Leachability of lanthanides from the radioactive pegmatite
pockets found in Gabal Abu Furad area, southwest Safaga city,
limited by latitudes 26°37′ and 26°43′ and longitudes 33°36′ and
33°43′E. Central Eastern Desert, Egypt. It was investigated using
different acids at different concentrations, liquid-to-solid ratios,
contact times and temperatures in order to determine the optimum
recovery conditions. The best leaching efficiency was obtained with
40g/l HCl solution; 8hrs contact time, 90°C temperature and 1:5
(g/ml) solid: liquid ratio. Afterwards, lanthanide stock solutions
were prepared by applying the optimum leaching conditions.
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