Showing papers in "Minerals Engineering in 2003"

TL;DR: Vanadium is an important byproduct that is used almost exclusively in ferrous and non-ferrous alloys due to its physical properties such as high tensile strength, hardness, and fatique resistance as mentioned in this paper.

TL;DR: In this paper, the use of granulated blast furnace slag as an active filler in the making of geopolymers was described, and a 10 mm thick geopolymer panel was exposed to a 1100 °C flame, with the measured reverse-side temperatures reaching less than 350 °C after 35 min.

TL;DR: Indium is an important byproduct of zinc metal processing operations and is recovered during the production of primary commodities such as zinc by means of complex procedures, many of which are proprietary to each producer as discussed by the authors.

TL;DR: In this article, the advantages and disadvantages of the reagent type and structure (e.g., ionic and non-ionic) on flotation were criticized and it was concluded that using surfactant mixtures has certain advantages over single surfactants.

TL;DR: Magnetic techniques are the cornerstone of material manipulation and over the last 30 years these methods have undergone dramatic developments as discussed by the authors, and the advantages of magnetic methods of material treatment are numerous and the spectrum of applications of this technique is formidable.

TL;DR: In this article, the authors pinpoint the salient facts regarding gallium globally and identify applicable sources of information, thus creating an ideal reference document for gallium information in the electronics industry, where the majority of gallium is employed to produce gallium arsenide (GaAS) wafers.

TL;DR: In this paper, the depressant effect of corn starch, its polysaccharide components (amylose and amylopectin), the monomer glucose and the dimer maltose were studied on hematite and quartz, by means of infrared spectrometry, adsorption isotherms determination and microflotation tests.

TL;DR: In this paper, a new method was developed to measure the bubble size distribution based on the bubbles' capture (without movement) combining microscopy with digital image processing procedures, and the technique (LTM-BSizer) employed a sampler to draw bubbles, rising in a column, into a special viewing chamber and exposes them to a digital camera after they have decelerated and stopped.

TL;DR: In this paper, the authors explore the possibility of using red muds, bauxite ore processing waste, and/or fly ash produced by coal fired power stations for immobilizing the heavy metals contained in severely contaminated soils.

TL;DR: In this article, solvent extraction is investigated as a promising alternative for the recovery of iron from leach solutions, which is usually carried out by precipitation as jarosite, goethite or hematite.

TL;DR: A compendium of hot metal practice for the multi-billion dollar global copper industry can be found in this article, where the authors reviewed the operations of 220 copper smelters worldwide and compared flash converting practices for Ausmelt, Inco, Kennecott and Mitsubishi.

TL;DR: In this article, the results of the testwork have shown that all of these variables affect the grinding efficiency and the ratio of media size to material size was found to be of particular significance.

TL;DR: In this article, the electrostatic interaction was identified as the main driving force for cationic collector adsorption on the minerals and the results were interpreted by crystal structure analysis of the minerals.

TL;DR: Results indicated that biological treatment with Pseudomonas sp.

TL;DR: In this paper, the effect of deslimed mill tailings on paste backfill performance at a copper-zinc mine in northeast Turkey was investigated, and it was found that the strength ranges of the desimulated tailings were from 12% to 52% higher than the as-received mill tailsings.

TL;DR: In this paper, a simulation of a Denver-type flotation cell has been performed using computational fluid dynamic (CFD) modeling, and the collision probability of fine particles moving around the bubble has been estimated.

TL;DR: In this paper, the surface properties of hard and soft kaolin clays were studied and the IEP of the hard kaolin varied from 2.5 to 3.8.

TL;DR: In this paper, the shape properties, surface roughness and wettability of quartz mineral were performed for the products of ball, rod and autogenous milling, where shape descriptors such as elongation, flatness, roundness, and relative width were measured on the projections of particles using scanning electron microscope (SEM).

TL;DR: In this article, a new measure for froth stability based on a dynamic stability test for non-overflowing froth columns is introduced, which is defined as the ratio of the total volume of froth at equilibrium to the volumetric gas rate introduced into the system.

TL;DR: In this paper, the authors present some theoretical relationships for the prediction of water recovery from a flowing foam and demonstrate that the amount of water collected is independent of the burst rate and the rate is proportional to the gas rate squared and inversely proportional to bubble diameter squared.

TL;DR: In this article, the effect of Ca2+ ions was investigated in the absence and presence of nonionic surfactants on apatite minerals, and the results showed that multilayers of oleate adsorbed on apatsite surface increased the adsorption and increased the contact angle.

TL;DR: In this article, the atomic force microscopy (AFM) colloidal probe technique was used to measure hydrodynamic interaction forces between a solid sphere attached to an AFM cantilever and an air bubble placed on a piezoelectric stage at different approach speeds.

TL;DR: In this article, the authors examine the use of Cleaner Production (CP) and Pollution Prevention (PPP) in the mining context and argue that these concepts are increasingly being misconstrued and must be defined specifically for mining industry before being incorporated into important policies and legislation.

TL;DR: The use of galvanostatic conditions enables a good Ni metal deposit to be obtained, while potentiostatic condition results in almost complete depletion of nickel in the electrolyte as discussed by the authors.

TL;DR: In this paper, the removal of zinc and chromium ions from aqueous solutions was investigated by the application of a two-stage separation process, termed sorptive flotation, which consists of the metal ions sorption onto an appropriate sorbent material, followed by successive flotation as the second stage.

TL;DR: A comparative study of the solvent extraction of vanadium in sulphate media using primary amine PRIMENE 81R and tertiary amine ALAMINE 336 dissolved in kerosene has been carried out.

TL;DR: In this article, the removal of sulphate and molybdate ions from mining liquid effluents is attracting much interest because of the strict environmental legislation worldwide and the need for water recycling and reuse.

TL;DR: A set of image segmentation algorithms for mineral froth images, based on gray-value valley detection and a kind of image classification, and the test results show that they are robust for Froth images.

TL;DR: In this paper, the authors examined the ability of a natural zeolitic tuff to remove hexavalent uranium from aqueous solutions under various conditions, including pH, retention time, solid/liquid ratio and presence of CO 3 2− and SO 4 2− ions in the solution.

TL;DR: This study investigates the development of training strategies, which is attempting to address the need for new strains with resistance to high concentrations of heavy metals, and indicates that initial adaptive behaviours are reflections of the strains tolerance development with increasing metal concentration.