Assessment of Silica Recovery from Metallurgical Mining Waste, by Means of Column Flotation
| Autor: | Ricardo I. Jeldres, Normam Toro, Ma. del Pilar Gutierrez-Amador, Eleazar Salinas-Rodríguez, Juan Hernández-Ávila, Eduardo Cerecedo-Sáenz, Javier Flores-Badillo |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Waste management Bubble Metals and Alloys column flotation waste reprocessing 02 engineering and technology 010501 environmental sciences engineering.material Reuse 01 natural sciences Cristobalite 020501 mining & metallurgy mining waste Orthoclase Mining industry 0205 materials engineering Column (typography) silica recovery engineering Environmental science General Materials Science Quartz lcsh:Mining engineering. Metallurgy 0105 earth and related environmental sciences |
| Zdroj: | Metals Volume 10 Issue 1 Metals, Vol 10, Iss 1, p 72 (2020) |
| ISSN: | 2075-4701 |
| DOI: | 10.3390/met10010072 |
| Popis: | The generation of mining waste commonly led to the use of spaces for its disposal. Challenges like mitigating the damage to surrounding communities have promoted the need to reuse, recycle and/or reduce their generation. Besides, these residues may become a source of materials, which are capable of being recovered and reused in several industries, minimizing the environmental impact. In the mining region of Pachuca, Mexico, waste from the mining industry have been generated for more than 100 years, which have a high SiO2 content that can be recovered for various industrial applications. This work aims to recover silica from a material of the Dos Carlos dam. A columnar system composed of two-stage of cleaning was used, considering a JLT (surface liquid rate) value of 0.45 and 0.68 cm/s, respectively while the Jg (surface gas rate) value was 0.30 cm/s for both stages. Similar bubble sizes in the range of Jg 0.10 to 0.30 cm/s, with values between 0.14 and 0.16 cm in the first stage, and 0.05 to 0.06 cm in the second one. This provided a recovery of 75.10% for all the allotropic phases of silica (quartz, trydimite, and cristobalite) leaving a concentration of 24.90% of a feldspathic phase (orthoclase), as flotation tails. |
| Databáze: | OpenAIRE |
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