The Effect of Operating Variables on the Performance of …
This paper presents the results of a study performed on silica sand samples to determine the effect of operating parameters (collector type and dosage, solids …
New perspectives in iron ore flotation: Use of collector …
@article{Silva2021NewPI, title={New perspectives in iron ore flotation: Use of collector reagents without depressants in reverse cationic flotation of quartz}, author={Klaydison Carlaile Silva and Lev O. Filippov and Alexandre Piçarra and Inna V. Flilippova and Neymayer Lima and A. G. Skliar and Livia Marques Faustino and …
Hydrogen bubble flotation of silica
Silica surface treatment. The silica surface was treated in the same way as Kern and Puotinen [15]. Before use in the flotation experiments, the silica sample was immersed in 28% by weight ammonia, 30% by weight hydrogen peroxide and deionised water at a ratio of 1:1:5. The mixture was heated at 80 °C for 30 min.
The effect of cationic surfactants on wetting, colloid stability …
In each experiment a mass of 1.00 g of silica, conditioned by overnight adsorption of surfactant at a given pH and salt concentration, was used. A constant equilibrium pH was achieved by adjusting the pH several times during the conditioning. During flotation a constant stirring was applied to give a pulp height of about 2.5 cm. …
Separation of silica from bauxite via froth flotation
DOI: 10.1016/J.MINENG.2008.09.001 Corpus ID: 97467177; Separation of silica from bauxite via froth flotation @article{Massola2009SeparationOS, title={Separation of silica from bauxite via froth flotation}, author={Camila Peres Massola and Arthur Pinto Chaves and J.R.F. de Lima and Christian Fonseca de Andrade}, journal={Minerals Engineering}, …
Silica Mineral Flotation | domain | Arkema …
Arkema is a leading provider of flotation reagents developed specifically for silica mineral processing plants that produce sand of the highest purity for premium electronic applications. We custom-blend high-grade cationic …
How to use Column Flotation to Reduce Silica
Increasing flotation capacity by installing a line of column cells; Adding column cells to existing flotation lines to act as recleaners; Pilot plant results revealed …
Effect of sodium silicate on the reverse anionic flotation of a
A series of flotation tests on Chador Malu samples were carried out to evaluate the effect of different silicate–metal salts mixtures on the apatite–iron oxides–silica flotation system. Experiments were performed at 800 g/t sodium silicate with modulus of 2.5 and at the pulp pH of 10, using different silicate–metal mixtures.
Mining product portfolio
Spodumene Silica flotation Armeen® T Performs in reverse flotation where impurities are silicates Atrac® 2600 Direct flotation of spodumene Wollastonite Direct flotation Armoflote® 18, Duomeen® T Performs in direct flotation process where impurities are carbonates Zinc oxide Direct flotation Armeen® C Suitable for direct flotation
Hydrogen bubble flotation of silica | Request PDF
Sarkar et al. (2010) compared the flotation of silica ultrafines (~13 μm) in a Denver flotation cell using both air and hydrogen as the sparged gases with an electroflotation cell, and reported ...
Effect of Dextrin on the Adsorption Behavior and Surface
To study the effect of dextrin on the flotation behavior of both coal and gangue mineral in coal reverse flotation, this research compared the adsorption behavior difference between sub-bituminous coal and silica as well as the surface property change of both sub-bituminous coal and silica after being treated by dextrin.
(PDF) Reverse cationic flotation
The reverse cationic flotation can be regarded as a possible solution to reduce the silicate content in the magnetite concentrate obtained by WLIMS and to achieve the required silica grade of less ...
Depressants for Calcite and Silica Flotation Studies of …
The flotation experiment was conducted by using 0.5kg/T of sodium silicate and 0.16kg/T sodium oleate as depressant and collector respectively. The results obtained show thst silica can be reduced from 17.34 to 9.53 and Cao can be upgraded from 40.98 to 49.79 in flaggy limestone and silica can be re-
Mechanism for the recovery of silicate gangue minerals in the flotation
1.. IntroductionFlotation is a complex process in which valuable minerals are separated from gangue minerals (Leja, 1982).The separation is based on the surface properties of each mineral phase present in the suspension (Mitchell et al., 2005, Çilek and Yilmazer, 2003, Luz et al., 2002).Flotation performance is dependent on several key …
Metals | Free Full-Text | Assessment of Silica …
In this work during the batch flotation in column a 75.13% of recovery was reached for all the allotropic phases of silica (quartz, tridymite and cristobalite), and of 24.87% of a feldspathic phase (orthoclase), which is …
The effect of ultra-fine coal on the flotation behavior of silica …
In this study, X-ray Photoelectron Spectroscopy (XPS) was used to analyze the elements on the surface of subbituminous coal, and reverse flotation was introduced to float subbituminous coal. The effect of ultra-fine coal on the flotation behavior of silica in coal reverse flotation was discussed by comparing the flotation performance with two …
FLOTIGAM™ 7500
FLOTIGAM™ 7500 is a sustainable flotation collector for the removal of quartz and other silicates minerals from iron ore. Based on its new technology, a more selective adsorption at these gangue minerals' surface is achieved, providing improved flotation performance in terms of iron recovery and concentrate grades.FLOTIGAM™ …
Mining product portfolio
Silica flotation Armoflote® 465 For use over a wide range of process water qualities Carbonate flotation Atrac® 1650 Suitable for low pH systems Calcite Silica flotation ACD® 82808-N Fine particle tolerant Armoflote® 18 For less complex, easy to float systems Armoflote® ECO Ecofriendly collector for silicate removal
A novel switchable collector for selective flotation of fine …
The XFGⅡ laboratory flotation cell (Wuhan Prospecting Machinery Factory, China) was used for microflotation experiments. Three solid mineral samples including CuO, SiO 2 and artificial mixture of CuO and SiO 2 were prepared. For each flotation experiment, 45 mL of DI water and 5 g of the solid mineral samples were mixed in the …
Upgrading Silica/Glass Sand Concentrate Applying …
stages of amine (Armoflote-565, 800 g/t) flotation onto the glass sand concentrate (clear flat glass quality) treated traditionally in the plant. The upgraded silica concentrate can be utilized as for
Separation of silica from bauxite via froth flotation
Abstract. This paper reports an innovative development: concentrating gibbsite via reverse froth flotation in order to obtain a metallurgical-grade bauxite …
Molecular sieve properties of mesoporous silica with
Biporous carbon-silica materials (CSM) with molecular sieve properties and high sorption capacity were developed by synthesizing nano-sized carbon crystallites in the mesopores of Al-MCM-41. ... 2010 Feb 14;46(6):928-30. doi: 10.1039/b918864a. Epub 2009 Dec 7. Authors F de Clippel 1, A Harkiolakis, X Ke, T Vosch, G Van Tendeloo, G …
Flocculation of flotation tailings in presence of silicate gel …
Flotation tailings were successfully flocculated in the presence of cationic polyacrylamide and silica gel. The effects of various parameters such as polymer weight, charge density, and pH on the rate of flocculation were also investigated in the current study. The flocculation mechanism of the flocculant on tailings was investigated using …
Mechanism for the recovery of silicate gangue minerals in the flotation
The effect of copper sulphate and sodium isopropyl xanthate on the flotation of a mixed mineral system has been studied at pH 9. The mixed mineral system was composed of colloidal silica and ...
Flotation of Chromite Ore
The latter machine was used to prepare large samples of low-silica flotation concentrate for refractory testing. Unless otherwise noted the general bench-scale flotation procedure consisted of the following steps: Grinding 500- to 1,000-gram charges of minus 10-mesh ore at 60 percent solids in a laboratory ball mill. All tests were batch ground ...
The Effect of Operating Variables on the Performance of …
Abstract: This paper presents the results of a study performed on silica sand samples to determine the effect of operating parameters (collector type and dosage, …
(PDF) The effect of cationic surfactants on wetting, colloid …
Keywords: Silica wetting; Silica stability; Silica flotation; Surfactant adsorption; Adsorbed surfactant orientation 1. Introduction Surfactant adsorption from aqueous solutions is often used for surface modification in order to regulate the colloidal stability of a mineral dispersion or to change the wetting and adhesion properties of a solid ...
The effect of amorphous silica on pulp rheology and copper flotation …
Amorphous silica is an abundant gangue mineral in ore deposits, but its effect on mineral flotation is unknown. In this study, the effect of amorphous silica on pulp rheology and chalcopyrite ...
EP0453677A1
Flotation is a process of treating a mixture of finely divided mineral solids, e.g., a pulverulent ore, suspended in a liquid whereby a portion of the solids is separated from other finely divided mineral solids, e.g., silica, siliceous gangue, clays and other like materials present in the ore, by introducing a gas (or providing a gas in situ ) in the liquid …
Quartz Ore Beneficiation by Reverse Flotation for Silicon …
using reverse flotation process improves the silica purity up to 99.6% and removes the major impurities, which is suitable intermediate technological product able for silicon …
