Results 11 to 20 of about 364,250 (225)
Physical and chemical interactions in coal flotation
International Journal of Mineral Processing, 2003 Abstract Coal flotation is a complex process involving several phases (particles, oil droplets and air bubbles). These phases simultaneously interact with each other and with other species such as the molecules of a promoting reagent and dissolved ions in water.
Polat, Mehmet +2 more
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Flotation performance analysis on coal washery rejects
Energy Geoscience, 2021 The coal washery rejects cause major environmental problems in various parts of the globe. Nearly 1 Mt of coal rejects discarded as waste, is accumulated per annum in India, during washing or cleaning of raw coal.
P.S. Kumar +3 more
doaj +2 more sources
Coal cleaning by froth flotation
, 2018 A number of experiments were conducted to determine the flotation characteristics of Iowa coals in which various conditions were applied to study the effect of different parameters such as frother dosage, oily collectors, pyrite depressants, and various combinations of these reagents.
Han, Choon
openaire +4 more sources
Factors affecting the kinetics of froth flotation [PDF]
, 1989 In this research work, three types of flotation models (discrete, mean rate and the gamma function models) are modified based on the relationship between mass recovery and recovery. The modified models can be used to calculate both the recovery and grade
Zhang, Jian-Gou
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Effects of particle size on the flotation behavior of coal slime
Energy Exploration & Exploitation, 2023 In order to investigate the influence of particle size on the flotation behavior of coal slime, industrial analysis, elementary analysis, and particle size composition analysis were carried out on coal slime.
Tianshen Lu +3 more
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Energies, 2022 For various sorts of hard coal, enrichment by flotation is used for feed consisting of grains smaller than 0.5 mm. Regarding process automation, coal flotation is a multidimensional, dynamic nonlinear object of control, for which the main control signal ...
Jarosław Joostberens +2 more
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Study on Low Rank Coal Flotation Enhancement by Carboxylic Acid Collector Prepared from Gutter Oil
Kuangchan zonghe liyong, 2023 Traditional non-polar oil collectors cannot achieve high recovery of low-rank coal because of the presence ofoxygen-containing groups at coal surface.
Wenhao Sui +3 more
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Modelling of coal flotation responses based on operational conditions by random forest
, 2021 Coal consumption is one of the critical factors in the economy of China. Flotation separation of coal from its inorganic part (ash) can reduce environmental problems of coal consumption and improve its combustion.
Chelgani, Saeed Chehreh, +3 more
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Mechanism of action of polyacrylamide in selective flocculation flotation of fine coal
工程科学学报, 2016 The influences of anionic polyacrylamide with low molecular weight(PAM A401) on coal and kaolinite were investigated by the flocs size distribution,FTIR spectra and wettability.
ZOU Wen-jie +3 more
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Effect of ultrafine kaolinite particles on the flotation behavior of coking coal
International Journal of Coal Science & Technology, 2020 Kaolinite, as a mineral in fine coal, has an important influence on the flotation of coal particles. In this study, the effects of ultrafine kaolinite particles on the flotation recovery of coal particles were investigated.
Yijiang Li +4 more
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