abstract

• This work presents the flotation of a sub-bituminous coal using 1-butylamine as a short-chain amine collector. The flotation results have been obtained with 1-butylamine (coal yield: 100%25) and compared with those achieved with a quaternary amine (coal yield: 95.4%25), kerosene (coal yield: 100%25) and diesel (coal yield: 95.7%25). The best results have been obtained with 1-butylamine. Less depressant effect has been observed with 1-butylamine. The FTIR signals have been attenuated when the coal is conditioned with 1-butylamine. Zeta potential measurements have also been changed after conditioning. The contact angle of water and graphite has decreased from 82.3° to 32.2°. An optimization has been performed using a Box-Behnken experimental design. Flotation has significantly affected by time and collector dosage. The pH is not a significant factor. The optimal conditions for the best efficiency using 1-butylamine as a collector are 2.0 min of flotation and 10-3 mol/L of collector.

authors

• Aguilar Carrillo de Albornoz Javier
• Blanco-Flores A.
• Gutiérrez Castañeda Emmanuel José
• Reyes Domínguez Iván Alejandro
• Toledo-Jaldin H.P.
• Ávila-Márquez D.M.

publication date

• 2023-01-01

published in

• Indian Journal of Chemical Technology  Journal

keywords

• Box-Behnken design, Butylamine, Collector, Flotation, Sub-bituminous coal

Digital Object Identifier (DOI)

• 10.56042/ijct.v30i1.63358

PubMed ID

start page

• 103

end page

• 110

volume

• 30

issue

• 1