Selective flotation of phosphorus-bearing ores
| Autor: | Abdalla Elbendari, Aleksandr Aleksandrov, Nadezhda Nikolaeva, Anastasiya Afanasova |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0211 other engineering and technologies
Analytical chemistry chemistry.chemical_element 02 engineering and technology 010501 environmental sciences ree 01 natural sciences Apatite chemistry.chemical_compound Nepheline Lanthanum selective flotation automated mineralogical analysis lcsh:Environmental sciences selective disintegration 021102 mining & metallurgy 0105 earth and related environmental sciences lcsh:GE1-350 Beneficiation Yttrium Grain size Cerium chemistry apatite visual_art Particle-size distribution visual_art.visual_art_medium |
| Zdroj: | E3S Web of Conferences, Vol 192, p 02021 (2020) |
| ISSN: | 2267-1242 |
| DOI: | 10.1051/e3sconf/202019202021 |
| Popis: | This paper presents the results of the beneficiation of a phosphorus-bearing mineral through selective flotation process. The chemical examination showed that the sample contain a low content of P2O5 12.5 % and significant amounts of rare earth elements (REE), %: yttrium - 0.01, lanthanum - 0.06, cerium - 0.09, neodymium - 0.03. The particle size distribution of the sample was performed, and each separated fraction was chemically analyzed. A detailed examination of the mineralog ical characteristics was conducted using automated mineral liberation analyzer (MLA). It has been shown that the apatite particles are mostly liberated in all fraction sizes. The maximum percentage of apatite polymineral aggregate was recorded in the grain size of -0.5 + 0.2 mm, mainly with nepheline and pyroxenes. The maximum percentage of apatite binary aggregate was noted in the grain size of -0.16 + 0.071 and -0.071 + 0.045 mm. Based on the obtained results, the size of the flotation feed was predetermined, which allowing the complete liberation of phosphorusbearing mineral (apatite) and avoiding over-grinding of the ore. |
| Databáze: | OpenAIRE |
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