Studies on Bioprocessing Technique Advanced in Beneficiation of an Egyptian Phosphate Ore by Froth Flotation | ||||
| Journal of Basic and Environmental Sciences | ||||
| Volume 11, Issue 1, January 2024, Page 124-142 PDF (881.59 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jbes.2024.374448 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| M. E. EL Awady | ||||
| Nuclear Materials Authority, El Maadi, Cairo, Egypt. | ||||
| Abstract | ||||
| In recent times, considerable research endeavours have been directed towards reducing the magnesium content in phosphate rock concentrate, making it a viable raw material for phosphoric acid production and allied industries. One noteworthy approach in this regard is the utilization of bioprocessing techniques. Nonetheless, this investigation is centered on the utilization of an enzyme obtained from Aspergillus Niger fungi cultivated on coffee waste sourced from the National Research Center Microbiology Laboratory. This enzyme is employed as a surface modifier during fatty acid flotation for calcareous phosphate rock. A blend of oleic acid and kerosene serves as the collector. A comprehensive exploration of various factors impacting enzyme activity, such as enzyme dosage, solution pH, temperature, and conditioning time, has been undertaken, aligning with the demands of local, regional, and global markets. Under optimal conditions, the study achieved a concentrate product containing less than 0.8% MgO from the Abu-Tartur feed, originally containing 2.88% MgO, with a remarkable P2O5 recovery exceeding 88%. | ||||
| Keywords | ||||
| Phosphate; Flotation; Aspergillus Niger fungi; Oleic acid; Enzyme; Magnesium | ||||
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