نتایج جستجو برای: trace and rare earth elements

تعداد نتایج: 16915845  

Journal: :Journal of Physics B: Atomic, Molecular and Optical Physics 2001

Journal: :Gospodarka Surowcami Mineralnymi - Mineral Resources Management 2013

Journal: :Minerals 2021

Estonian phosphorite ore contains trace amounts of rare earth elements (REEs), many other d-metals, and some radioactive elements. Rare elements, Mo, V, etc. might be economically exploitable, while toxic should removed before any downstream processing for environmental nutritional safety reasons. All untreated hazardous remain in landfilled waste much higher concentration than they occur natur...

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