Results 41 to 50 of about 2,770 (227)

Application of Ultrasonic Sensors for Determining the Height of Dynamic Two‐Phase Layers in Tray Columns

open access: yesChemie Ingenieur Technik, EarlyView.
Ultrasonic sensors are evaluated for their applicability in dynamic gas–liquid systems. By comparing sensor data with two independent optical reference methods, their robustness and reliability are demonstrated under varying flow conditions and tray geometries in column systems.
Niklas Breuer   +2 more
wiley   +1 more source

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

Characterization of a two‐phase hybrid flotation column

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study explored the performance of a novel hybrid flotation column, which combines the advantages of a mechanically agitated cell with a flotation column and compared the results with a conventional flotation column setup. The experiments were performed in an air/water two‐phase system under varying airflow rates, frother concentrations ...
Pedro Silva Aires   +3 more
wiley   +1 more source

Separation of Carbon from Deinking Waste by Means of Flotation [PDF]

open access: yes, 1955
The technique of froth flotation, as practiced in the separation of mineral ores, has been applied to the separation of carbon black from the deinking waste of the paper industry. On the theory that carbon black (from ink) has a positive charge in water,
Beeman, Lester R.
core   +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

Понижение зольности пылеугольного топлива с использованием нового кремнийорганического реагента-вспенивателя [PDF]

open access: yes, 2001
Рассматривали способ понижения зольности пылеугольного топлива путем флотации с использованием нового кремнийорганического реагента-вспенивателя кубового остатка этилсиликата-32.
Петухов, В. Н.   +2 more
core   +3 more sources

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

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   +2 more sources

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