Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
Read More
Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
Read More
By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
Read More
Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
Read More
Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
Read More
The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
Read More
Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
Read More
The theoretical calculation of the polycarboxylic acid also shows progress [[24], [25], [26]], such as in the adsorption conformations of the comb-shaped PCE molecules on the C 2 S surface that were studied at the atomic level via the all-atom molecular dynamic simulations by using both vacuum- and solution-based (with explicit …
Details
It was found that degrees of initial bubble adsorption coverage (which values were calculated according to existing adsorption models), has profound influence on kinetics of the dynamic adsorption ...
Details
The adsorption of the surfactants triggers chain reactions acting along different size-scales: it diminishes the tension at the air-liquid interface and increases its surface elasticity (micro ...
Details
It was found that degrees of initial bubble adsorption coverage (which values were calculated according to existing adsorption models), has profound influence on kinetics of the dynamic adsorption ...
Details
In this work, therefore, the dynamic behaviors of CO2 bubbles in bubble column photobioreactor were visually studied and the effect of inlet CO2 concentration, blast orifice size and gas flow rate ...
Details
To account for the finite-size effects, several important correction schemes, e.g, the potential-alignment correction (qΔV), were considered in our defect calculations 25,26.
Details
The adsorption of surfactant molecules leads to the formation of dynamic adsorption layers (DAL) at the bubble surface and to a reduction of ... the particle size range, with greatest effect on ...
Details
a diffusion-controlled adsorption process, bubble shape and needle size are two major factors affecting the DST. The existence of a needle accelerates the bulk diffusion for a small bubble; however, the shape of a large pendant bubble decelerates the bulk diffusion. An example using this method on the DST data of C12E4 is illustrated at the end of
Details
Environmental science & technology. 2013. TLDR. The interactions between crude oil droplets and air bubbles were studied by the droplet-bubble micromanipulator technique, and it was suggested that adsorption of dissolved hydrocarbons at air bubble surfaces may increase the potential energy barrier in the thin liquid film.
Details
Dynamic surface tension and adsorption mechanisms of surfactants at the air-water interface. Adv. Colloid Interface, 85 (2000), ... The effect of drop (bubble) size on advancing and receding contact angles for heterogeneous and rough solid surfaces as observed with sessile-drop and captive-bubble techniques.
Details
Effects of dynamic adsorption on bubble formation and coalescence in partitioned-EDGE devices. Karin Schroën. 2021, Journal of Colloid and Interface Science. See Full PDF Download PDF.
Details
DOI: 10.1016/j.cis.2014.07.013 Corpus ID: 33284431; Formation and influence of the dynamic adsorption layer on kinetics of the rising bubble collisions with solution/gas and solution/solid interfaces.
Details
Nanobubbles effect on heavy metal ions adsorption by activated carbon. Chemical Engineering ... Shahbazi, Arash Tehranchi. New Approach to Quartz Coarse Particles Flotation Using Nanobubbles, with Emphasis on the Bubble Size Distribution. International Journal of ... Dynamic behavior of two neighboring nanobubbles induced by …
Details
The bubble size increases with continuous phase viscosity as the formation dynamics are slowed down [21–23]. While most studies consider droplet formation at equilibrium interfacial tension, only a few studies consider bubble formation, which is much faster, and these studies are typically carried out at very high loading of fast-adsorbing …
Details
The effect of the diffusion-controlled adsorption of the surfactant Triton X-100 on detachment of gas bubbles adherent to the wall in pipe flow is studied. Air bubbles of known volume (scaled bubble dimension λ =0.8, 1.0, 1.5) are maintained in tubes inclined at 25°, 45°, 65°, or 90°. Triton X-100 is infused into the bulk flow to achieve a ...
Details
Effects of dynamic adsorption on bubble formation and coalescence in partitioned-EDGE devicesq ... the bubble size and the bubble formation frequency – though they are interrelated [1]. On the ...
Details
The aerosol particle adsorption can be monitored by the transparency of bubble, which was analyzed using the MGV of the bubble photos (Figure 6c). To elucidate the effect of acoustic levitation on particle adsorption, we compared the temporal MGV of an acoustically levitated bubble and a traditional bubble without sound field.
Details
The bubble size increases with continuous phase viscosity as the ... [29] the role of these dynamic adsorption effects on both bubble formation and bubble stabilization versus coalescence.
Details
From the mesoscopic void scale, the effects of gangue particle size gradation, inflow velocity and ion concentration on the flow field characteristics, ion migration and dynamic adsorption characteristics of gangue in the leaching column were explored, and the purification mechanism of the broken gangue to heavy metals in mine water was …
Details
The slurry phase, phase, and slurry– phase interfaces are the typical locations for bubble-particle detachment, and significant advancements have been achieved in the detachment theory of the slurry phase and phase. However, the microscopic detachment mechanism of particles at the slurry– phase interface is still …
Details
It was also evaluated that the time needed for development of dynamic steady state structure of the adsorption layer over surface of the rising bubbles was varying from ca. 0.1 up to over 1s ...
Details
As a bubble rises, the cap angle decreases due to the adsorption of surfactants at bubble interface. Then, the ratio between the average values of τ x and p·n x increases. This indicates that the Marangoni effect increases as a bubble rises. Thus, it balances the pressure difference between the top and bottom of a bubble to a great extent.
Details
The effect of adsorption isotherms on the adsorption kinetics was shown much later in ... The theoretical description of the dynamic adsorption on the bubble interface follows is governed by Fick's law (25). ... Download full-size image; Fig. 10. Dynamic adsorption of C 12 EO 5 (dashed lines) and C 14 EO 8 ...
Details
In this work, four types of comb-like dispersants and one linear dispersant were synthesized to explore the effect of dispersant structure on the bubble structure in water solution and mortar system for the first time. Dispersants were modified with different adsorption groups (i.e., carboxylic acid, phosphate ester, and sulfonic groups).
DetailsThe effects of an eight-year natural aging of ASC impregnated activated carbon on the adsorption capacity and breakthrough times of model organic vapors and of the nerve agent sarin were investigated. ... The effects of aging on the dynamic adsorption of hazardous organic vapors on impregnated activated carbon J Occup Environ Hyg. …
Details
The effects of the adsorption and desorption of surfactants on the shear-induced lift force exerted on the surface of rising bubbles have also been studied [34]. ... Formation and influence of the dynamic adsorption layer on kinetics of the rising bubble collisions with solution/gas and solution/solid interfaces ... bubble size, and shape [36 ...
Details
Formation and influence of the dynamic adsorption layer on kinetics of the rising bubble collisions with solution/gas and solution/solid interfaces. ... Effect of flotation frothers on bubble size and stability. Cho. ... Bubble coalescence and its effect on dynamic stability. Cho. Can J Chem Eng 2002 Show 10 more references (10 of 135
Details
This paper presents an analysis on the dynamic adsorption of frothers and collectors onto air bubbles in flotation. The analysis was carried out using the theory on the surfactant transfer by diffusion and adsorption. The bubble size was considered when solving the diffusion equation for the dynamic surface excess. The adsorption kinetics was …
DetailsThe formation and development of nanobubbles near the solid surface were studied. •. The effects of bubble size and bubble spacing on bubble coalescence were revealed. •. The influence of wettability on the formation and development of surface nanobubbles was introduced. In this work, the molecular dynamics simulation was …
Details
DOI: 10.1016/j.jcis.2021.06.014 Corpus ID: 235450502; Effects of dynamic adsorption on bubble formation and coalescence in partitioned-EDGE devices. @article{Deng2021EffectsOD, title={Effects of dynamic adsorption on bubble formation and coalescence in partitioned-EDGE devices.}, author={Boxin Deng and Karin …
Details
Effect of capillary orifice size on CO 2 bubble behaviour. In this section, the effect of capillary orifice size on bubble dynamic behaviour was studied. The results are shown in Figs. 8 and 9. Figure 8a presents variations in bubble diameter with time before detachment. The larger capillary orifice sizes resulted in a higher bubble growth rate.
Details
The paper deals with the effect of the motion-induced dynamic adsorption layer profile on the time-scale of bubble attachment to a mica surface in solutions of cationic surfactants, n-alkyltrimethylammonium bromides (C n TABr). In distilled water both the mica and bubble surfaces are negatively charged and the wetting film is stable.
Details
To determine the main characteristics of the dynamic adsorption layer, formed in the process of bubble generation, we assume that the surfactant adsorption Γ(t) can be determined from the measured dynamic surface tension σ(t) using Eq. (5). Most of the studied surfactant concentrations are around and above the CMC.
Details
The effect of surface contamination on the bubble velocity is analyzed. Based on the stagnant cap model, a mathematical model coupling the surfactant adsorption and desorption on the bubble surface and the dynamic bubble motion in stagnant solutions is further proposed.
Details
Sofol is a well-known crusher and grinding mill manufacturer that offers equipment and solutions for customers from aggregates, mining and mineral grinding industry.
You can leave your message here, we'll send you an Email immediately.
Online ChatCopyright ©2000- 2024 Shanghai Sofol CompanySitemap
PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
GET QUOTE