“…Processes that had been employed for phosphorus removal from iron ores include thermal treatment [7,21,24,[38][39][40][41][49][50][51][52][53], microwave treatment [38,[54][55][56], ultrasonic treatment [54], acid leaching [12,17,20,49,[56][57][58][59][60], alkaline leaching [5,59], bioleaching [30,[61][62][63], agglomeration methods [64][65][66][67], and froth flotation [31,52,68,69]. For a more detailed appreciation of the methods employed to process and valorize high-phosphorus-content ores, the recent reviews by Quast [70] and by Pereira and Papini [71] are recommended. With an ever-growing demand for natural resources and rapid depletion of high-quality sources for minerals, there arises a need for research on lower-grade minerals to ensure their economic exploitation.…”