A5100418522- Minerals Flotation and Separation Techniques
- Metal Extraction and Bioleaching
- Extraction and Separation Processes
- Mineral Processing and Grinding
- Geotechnical Engineering and Underground Structures
- Iron oxide chemistry and applications
- Advanced Mathematical Modeling in Engineering
- Nonlinear Partial Differential Equations
- Adsorption and biosorption for pollutant removal
- Advanced Mathematical Physics Problems
- Geotechnical Engineering and Soil Mechanics
- Metallurgical Processes and Thermodynamics
- Electrostatics and Colloid Interactions
- Characterization and Applications of Magnetic Nanoparticles
- Pickering emulsions and particle stabilization
- Spectroscopy and Chemometric Analyses
- Advanced oxidation water treatment
- Geochemistry and Elemental Analysis
- Coagulation and Flocculation Studies
- Civil and Geotechnical Engineering Research
- Calcium Carbonate Crystallization and Inhibition
- Phosphorus and nutrient management
- Railway Systems and Energy Efficiency
- Geotechnical Engineering and Soil Stabilization
- Metal complexes synthesis and properties
Central South University
2012-2024
University of Science and Technology of China
2021
Institute of Solid State Physics
2021
Chinese Academy of Sciences
2021
Anhui University of Science and Technology
2018
Beijing Drainage Group (China)
2012
The flotation separation of magnesite from calcium-containing minerals has always been a difficult subject in processing. This work studied the inhibition effects carboxymethyl cellulose (CMC), sodium lignosulphonate, polyaspartic acid (PASP) and silicate on behaviors magnesite, dolomite calcite, providing guidance for development reagents flotation. micro-flotation results showed that among these four depressants, presented strongest selectivity due to highest recovery difference, calcite...
Polyaspartic acid (PASP) was used as a novel environmental-friendly depressant, and its inhibition effect on flotation performance of scheelite calcite using sodium oleate (NaOL) collector investigated by ways experiments, zeta potential measurement, contact angle measurement infrared spectroscopic analysis (IR). The results show that PASP exhibits stronger capability selectivity than acidified water glass, the separation from can be realized in presence 6 mg/L 20 NaOL at pH>6. In PASP,...
Sodium diethyldithiocarbamate (DDTC), a common collector used to enhance the hydrophobicity of minerals in froth flotation, nevertheless weakens talc surface. To rationalize this anomaly, interactions hydrophobic alkyl group and hydrophilic mineralophilic (−NCS2–) heteropolar surfactant DDTC, water molecule with (001) surface, were investigated. Herein, DFT simulations found that surface features natural determined by competition between adhesion (surface water) cohesion (water–water...
The synergetic effect of four octaphenyl polyoxyethyienes (TX) on low temperature flotation scheelite at 9–11 °C was investigated through experiments, and the adsorption mechanism studied by way surface tension, zeta potential, measurement. results show that presence can improve in a concentration range, their effects increase with oxyethyl group (EO) number molecular structure, mixed sodium oleate/TX-15 collector exhibits best collecting performance for scheelite. Compared oleate alone,...
Abstract The poor collecting performance of fatty acids at low temperatures is a problem in mineral flotation. In this study, the floatability scheelite 283 K was studied using sodium oleate and binary mixtures lauryl alcohol polyoxyethylene ether (MOA‐9) as collector, interactions between two surfactants were investigated by means surface tension steady state fluorescence measurements. flotation experiment results show that mixed anonic/nonionic collector stronger than single surfactant,...
The aim of this study was to investigate the effect roughness and relative density on mechanical properties sand-concrete pile interface. A series direct shear tests were carried out interface using a large-scale apparatus with various densities sand (73%, 47%, 23%) concrete blocks four values (I = 0, 10, 20, 30 mm). Various (such as stress, volume change, peak strength, secant friction angle, normalized coefficient) from compared trends obtained pure test. For smooth interface,...
To identify the key characteristics of cationic polyacrylamide (c-PAM) for evaluating sewage sludge dewatering performance, we examined properties 13 types c-PAMs that come from different manufacturers via a laboratory assay. The performance was determined through full-scale test at large wastewater treatment plant in Beijing. We checked degree, solution viscosity, dissolution time, and 1 mm sieve residue c-PAM. found to affect conductivity. indicated degree is most important factor affects...
Highly turbid coal slime water is characterized by high concentrations of fine particles with negative electric charges and a clay content. These characteristics hinder the sedimentation dewatering highly water. Therefore, we investigated initial settling velocity, light transmittance, filter cake moisture content, as well effects quaternary ammonium surfactants on filtration Amendment promoted enhancing hydrophobicity decreasing charge particle surfaces. In addition, factors such kinetic...
In this paper, we study the existence and asymptotic behavior of least energy sign-changing solutions for nonlinear Chern–Simons–Schrödinger equations −Δu+ωu+λh2(|x|)|x|2+∫|x|∞h(s)su2(s)dsu=f(u), x∈R2,u∈Hr1(R2), where ω, λ>0, f∈C(R,R) h(s)=12∫0sru2(r)dr. Under suitable assumptions on f, use some analytical skills constraint minimization method to show that above problem admits one solution uλ with precisely two nodal domains. Furthermore, is strictly larger than times energy, present a...