Results 41 to 50 of about 1,166 (217)

Flotation performance analysis on coal washery rejects

open access: yesEnergy 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   +1 more source

Frother Characterization with Two-Phase Foam System [PDF]

open access: yes, 2006
This paper evaluates frother performance by studying two-phase gas-liquid system. Surface tension, foamability, foam stability and bubble size distribution are measured as a function of ft-other type, frother dosage, and sol-ution pH.
Pradip,   +4 more
core  

Enhancing hydrogen evolution reaction by harnessing bubble dynamics regulation: Principles, methods, and outlook

open access: yesDroplet, EarlyView.
Bubble dynamics pose critical bottlenecks to hydrogen evolution reaction efficiency, causing active site isolation, increased ohmic resistance, and concentration overpotential, especially at high current densities. This review comprehensively summarizes passive and active bubble manipulation strategies, elucidates their underlying principles, and ...
Ziwei Guo   +10 more
wiley   +1 more source

Some Frothing Characteristics of Flotation Frothers

open access: yesFLOTATION, 1968
Water content, overflowing fluidity and weight of entrained gangue particles in froths containing gangue were investigated, using MIBC, Yarmour F Pine oil, Dow Froth 250 as frothers in 500g Kyodaitype flotation test machine. Dry-grouned quartz and marble were used as gangue in the quantity of 100g/2.1-2.2l of solution.
Yukie YOKOYAMA, Yoshiaki NUMADA
openaire   +3 more sources

Effect of different reagent regime on the kinetic model and recovery in gilsonite flotation

open access: yesJournal of Materials Research and Technology, 2019
Gilsonite is a natural fossil resource, similar to an oil asphalt high in asphaltenes. To determine the effect of reagent regime on the kinetic order and rate of flotation for a gilsonite sample, experiments were carried out in both rougher and cleaner ...
Ataallah Bahrami   +2 more
doaj   +1 more source

Combined microflotation effects in polymetallic ores beneficiation

open access: yesSN Applied Sciences, 2023
Article Highlights Microbubbles in the form of water-air myroemulsion of frother solution improve efficiency of extraction of fine hydrophobic particles.
D. Turysbekov   +3 more
doaj   +1 more source

Influence of operating parameters on nanobubble-assisted flotation of graphite

open access: yesJournal of Materials Research and Technology, 2022
Although many studies have focused on processing of lithium-ion batteries (LiBs), there is a considerable lack of information concerning the application of nanobubbles (NBs) in their floatabilities.
Sabereh Nazari   +6 more
doaj   +1 more source

Deglaciation of the Burren glacio‐karst, western Ireland, during Termination 1: Implications for North Atlantic climate and karstification

open access: yesJournal of Quaternary Science, EarlyView.
Abstract The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation ...
Gordon Bromley   +4 more
wiley   +1 more source

Alterations in MicroRNA and Cytokine Expressions in Placental and Amniotic Tissues of COVID‐19 Affected Pregnant Women

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Since 2019, coronavirus disease 2019 (COVID‐19) has been associated with increased risks of preterm birth and placental complications. We prospectively investigated alterations in microRNAs (miRNAs) and cytokines in placental and amniotic tissues from pregnant women with and without COVID‐19 to evaluate the infection's impact on pregnancy ...
Wei‐Chun Chen   +3 more
wiley   +1 more source

Perancangan Milk Frother [PDF]

open access: yes, 2012
Abstrak- Saat ini banyak usaha seperti cafe yang menjajakan minuman ‘ala cafe’ berbasis susu yang digemari dari semua kalangan. Di samping menyehatkan, susu juga bisa menghasilkan produk-produk minuman unik, berkelas, dan sedap di lidah.
Satriani, Aprillia
core  

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