Adsorption of sodium oleate on coal surface with different oxidation degrees and its effect on flotation
Sign Up to like & getrecommendations! Published in 2020 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"
DOI: 10.1016/j.colsurfa.2020.125801
Abstract: Abstract As traditional hydrocarbon oils cannot interact effectively with oxidized coal surface, this paper studied the effect of sodium oleate (NaOL) on the flotation of coal with different oxidation degrees. X-ray photoelectron spectroscopy, ultraviolet spectrophotometer,… read more here.
Keywords: coal surface; surface; flotation; sodium ... See more keywords
Contribution of friction to the heterocoagulation between coal surface and quartz particles studied by the particle vision and measurement (PVM)
Sign Up to like & getrecommendations! Published in 2021 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"
DOI: 10.1016/j.colsurfa.2021.127078
Abstract: Abstract The heterocoagulation between coal and micron-sized gangue particles is detrimental to the flotation separation of clean coal. Mineral heterocoagulation is usually inhibited by the adjustment of solution chemistry. But it is not explicit whether… read more here.
Keywords: quartz particles; heterocoagulation; coal surface; heterocoagulation coal ... See more keywords
Contact angle and induction time of air bubble on flat coal surface of different roughness
Sign Up to like & getrecommendations! Published in 2018 at "Fuel"
DOI: 10.1016/j.fuel.2018.02.140
Abstract: Abstract The wettability of coal is an important parameter for representing the surface hydrophobicity and floatability of coal particle, and hence determines coal flotation behavior. The wettability of coal is primarily governed by the surface… read more here.
Keywords: coal surface; contact angle; surface; coal ... See more keywords
Systematic exploration of quaternary ammonium salt adsorption on oxidized coal based on experiments and MD simulations
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DOI: 10.1016/j.fuel.2020.119434
Abstract: Abstract To explore the hydrophobic modification mechanism of quaternary ammonium salts on oxidized coal surface, the surface hydration of oxidized coal and the adsorptions of different quaternary ammonium salts on oxidized coal surface were investigated… read more here.
Keywords: quaternary ammonium; coal; oxidized coal; coal surface ... See more keywords
Experimental study on variation law of electrical parameters and temperature rise effect of coal under DC electric field
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DOI: 10.1038/s41598-021-86598-0
Abstract: Joule heats which are generated by coals in an applied electric field are directly correlated with variation resistivity of electrical parameters of coals. Moreover, the joule heating effect is closely related with microstructural changes and… read more here.
Keywords: coal surface; field; electrical parameters; coal samples ... See more keywords
Effectiveness of Complex Esters According to the Integral Criterion of Molecular Electronegativity in the Flotation of Gas Coal
Sign Up to like & getrecommendations! Published in 2018 at "Coke and Chemistry"
DOI: 10.3103/s1068364x18110054
Abstract: The interaction of complex esters of linear and aromatic structure with the surface of Kuznetsk Basin gas coal is analyzed. The interacting coal particles and the molecules of the collecting agent are studied in terms… read more here.
Keywords: complex esters; coal surface; gas coal; flotation ... See more keywords