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| Piñeres-Mendoza, Jorge L., Barraza-Burgos, Juan M. and Bellich-Fernandez, Silvia P. Effect of Diesel Oil and Mixture of Alcohol-Glycol Ether on Colombian Ultrafine Coal Cleaning Using a Test-Rig Closed-Loop Flotation Column. Ing. Investig., Apr 2022, vol.42, no.1. ISSN 0120-5609
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