what are phosphate rock fertilizer in egypt and uses of
Khoshjavan and Rezai (2011) examined phosphate rock samples of northern Iran that have an average P 2 O 5 grade of 11.9% and consist of apatite (collophane), quartz, calcite and dolomite. Using calcination and subsequent two-stage flotation and desliming, a concentrate with a P 2 O 5 grade of more than 31% P 2 O 5 and recovery of more than 62% ... alternatives methods to concentrate and upgrade of phosphate ore tailings assayed 18.37% of El-Nasr Mining Company, Sepaeya, Egypt. The concentration of wastes not only add an economic value but also safe the human, animals, and plants. 2. Petrographical and Mineralogical Study of the Samples Thin and polished sections of phosphate ore wastes of
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