TL;DR: In this article, the unconfined compressive strength (UCS) of the specimens produced from pure mine tailings was in the range of 1.3-3.5 MPa.

TL;DR: In this paper, the advances in understanding the surface chemistry of these systems are reviewed and discussed in this paper, and advances in the understanding of surface chemistry for molybdenite are discussed.

TL;DR: In this paper, octyl hydroxamic acid (HXMA-8) was used as an associate collector with NaOl in scheelite flotation, and the flotation tests showed that a novel reagent scheme, i.e., a lower dosage of SS (300 mg/L) and mixed collectors of HXMA+NaOl (total concentration 4.5 ǫ −10 −4 Âmol/L, preferred mass ratio of 1:2).

TL;DR: In this article, the initial dissolution rate of some geopolymer precursors is characterised, and the effects of solution alkalinity and milling on dissolution rates are investigated while fly ash and blast furnace slag particles seem to release Si and Al at approximately similar rates, metakaolin shows a distinctively higher release of Si from the very early time of dissolution.

TL;DR: In this article, the effects of sodium hexametaphosphate (SHMP), tanning extract, starch and acidified water glass (AWG) as depressants of calcite have been studied.

TL;DR: In this article, the authors focused on the precipitation of sulfate with polyaluminum chloride at pH 4.5 at the bench scale and their separation by flotation and found that the sulfate-loaded flocs were readily removed from the aqueous solutions by microbubbles (MBs, 30-100μm) and nanobbles (NBs, 150-800nm).

TL;DR: In this article, the effect of carbonate minerals on quartz flotation from iron mineral was investigated using sodium oleate as collector, starch and calcium as regulators, and Fourier transform infrared spectroscopy (FTIR) measurements were conducted in the investigation.

TL;DR: In this article, the aggregation behavior of ultra-fine scheelite particles induced by hydrodynamic cavitation was investigated through flotation tests, zeta potential measurements, turbidity determination and microscopic imaging.

TL;DR: In this article, the adsorption of Cu(II and Cd(II) from aqueous solution was studied by Common Reed (CR) activated with different concentrations of H3PO4 (PA) and carbonized at 500°C under flowing of different atmospheres (nitrogen and air).

TL;DR: A review of the literature on quantifying the microturbulence effects on bubble-particle interactions in flotation can be found in this paper, where a stochastic description of bubbleparticle interaction in the turbulent flow which is a random field is presented.

TL;DR: In this article, a double sulfuric leaching of the sample led to rare earths dissolution, then, the evaporation of the acid liquor allowed to recover a rare earth-rich solid.

TL;DR: In this article, the behavior of competitive Cu(II and Pb(II) biosorption in batch was successfully described by the multicomponent Sips model, obtaining maximum capacities for Cu(2) and PB(2), respectively, of 6.52 and 17.41 mg/g, respectively.

TL;DR: In this article, a computational fluid dynamics (CFD) model was used to investigate the influence of solid concentration on bubbles' coalescence rate in flotation cell using Eulerian-Eulerian approach.

TL;DR: In this paper, a new method to produce lightweight aggregates (LWAs) by granulating peat-wood ash using alkali activators was presented. But the results of the analysis showed that the precursor particles were embedded in a dense alumino-silicate matrix.

TL;DR: In this article, two composites of zeolite/hydrous iron oxide (ZFA/HIO) and ZFA/Zirconia were developed by adding a step in which waste alkaline solutions are neutralized with an iron or zirconium salt.

TL;DR: In this article, a composite central design with five levels and four variables was employed to model and optimize the batch flotation kinetic process in a cyclonic microbubble flotation column (FCMC).

TL;DR: In this article, the role of the liquid phase in stirred media milling has been investigated and it is shown that an increase in the reactivity of ground solids is manifested by a significant increase in dissolution in the aqueous phase during processing in water.

TL;DR: In this paper, molecular dynamics simulations (MDS) are used to describe interfacial water structure and contrast the structure of water at hydrophilic mineral surface with that at a hydrophobic mineral surface.

TL;DR: In this article, an extension of the shrinking core model was applied to the leaching of chalcopyrite with a broad PSD in a mixed chloride-sulphate solution.

TL;DR: In this paper, the selective flotation of ilmenite from olivine using an acidified water glass (AWG) as a depressant and sodium oleate (NaOL) as collector has been studied.

TL;DR: The adsorption kinetics, density and structural property of sodium oleate on Ca2+ activated quartz surface have been studied using the techniques of quartz crystal microbalance with dissipation (QCM-D) and atomic force microscope (AFM) as mentioned in this paper.

TL;DR: In this paper, the VIMs (proximate and ultimate analysis, petrography) processed by RF models were used for the prediction of Hardgrove Grindability Index (HGI) based on a wide range of Kentucky coal samples.

TL;DR: In this article, a technological separation process of phosphate, thorium and rare earth element (REE) concentrates from Egyptian monazite was developed to explore the acid efficiency for leaching Th and REE in the presence of high phosphate media.

TL;DR: In this paper, an Eulerian-Lagrangian model, dense discrete phase model (DDPM), is used to simulate the complex liquid-solid flow in an industrial-scale cylindrical hydrocyclone, where Reynolds stress model (RSM) was used to model the turbulence of liquid phase due to its swirling nature.

TL;DR: In this paper, the effect of calcium hydroxide (Ca(OH)2) on the stability of calcium carbonate (CaCO3) particles was investigated with respect to the surface potential and particle size.

TL;DR: In this paper, the first attempt of the usage of cow dung as a reductant in the reduction roasting of an Indian iron ore slime containing 56.2% Fe was made and the resultant reduced mass generated a concentrate of ~ 64% Fe with a weight recovery ~ 66% after being subjected to low intensity magnetic separation (LIMS).

TL;DR: In this paper, the effect of energy/power input on the flotation of three sulphide minerals (galena, pyrite and pentlandite) and three oxide minerals (apatite, hematite, and quartz) in an oscillating grid flotation cell (OGC) was investigated.

TL;DR: In this paper, Ni, cobalt and iron were extracted from lateritic nickel ore under atmospheric pressure acidic leaching conditions, and the following variables were examined to understand their effects on extraction: sulphuric acid concentration, liquid-to-solid ratio, leaching temperature, and particle size.