Online Message

CONTACT US

message-img
  • Cationic flotation of quartz from an artificial mixture

    01.01.1988· The cationic flotation of quartz was carried out from an artificial mixture (1:1 by weight) of fine grained ( − 10 μm) quartz and hematite, using hexylamine acetate (HAA) and dodecylamine acetate (DAA) as collectors. Selective flotation of quartz was possible in the pH range 9–10 using HAA. The adsorption densities of DAA and HAA on quartz and hematite were measured at pH 9.8 and the relationship between the flotation

    Details >
  • FLOTATION OF QUARTZ AND HEMATITE: ADSORPTION

    The flotation response of quartz and hematite as a function of cationic and anionic collector concentration at pH and the pH values varied from 6.0 to 6.3 are displayed in Figure 2. The onset hemi-micelle formation for quartz (refer Figure 2A) with C 12 amine corresponds to about 1 × 10

    Details >
  • of Quartz by Columbia University

    actions on flotation of quartz using both anionic and cationic surfactants and polymers. Quartz, clay and other silicate type minerals are almost always present with energy minerals such as coal and shale, and it is considered important to understand the behavior of these minerals. Also, it is the

    Details >
  • Flotation of fine particles in the presence of combined

    15.08.2020· In order to analyse the kinetics of flotation of fine quartz particles, the recovery as a function of time is presented in Fig. 6 I. It is observed that at 0.5 min flotation, the quartz recovery is much higher when the microbubbles are used (i.e. 74% vs 53% for the bulk size range, 0–50 μm).

    Details >
  • The effect of amine type, pH, and size range in the

    01.08.2007· In the present investigation, the flotation of quartz particles in different size ranges is addressed aiming at bringing light to the so-called reverse cationic flotation of itabirite iron ores. Quartz particles are removed in the froth phase leaving hematite as the non floated fraction.

    Details >
  • Effect of carbonate alkalinity on flotation behavior of quartz

    Cationic flotation of quartz in the presence of 10 1 M alkalinity can be improved upon increasing the amine addition. However, no improvements can be attained in the oleate flotation of quartz activated with calcium at the same alkalinity. As the carbonate alkalinity of the process water originates from either the dissolu- tion of carbon dioxide in water or dissolution of carbonate minerals

    Details >
  • Flotation of fine particles in the presence of combined

    Reverse cationic flotation is used at the final stage to remove silicate and aluminosilicate impurities from the magnetite concentrate and reduce silica content to 1-3%, depending on metallurgical

    Details >
  • Flotation of Iron Oxides and Quartz—A Review: Mineral

    Froth flotation of iron oxides and quartz is reviewed over the broad range of particle sizes. The review, which embraces laboratory-, pilot plant- and industrial operations, encompasses (i) surface chemistry of iron oxides and quartz flotation (ii) relevant collectors and their adsorption mechanism and (iii) activation/depression in selective flotation, in this system. The diverse effect of temperature on iron oxides and calcium-activated quartz flotation

    Details >
  • (PDF) Cationic flotation of iron ores: Amine

    The flotation of most of the low-grade iron ores containing quartz as the major impurities is being carried out by using several cationic collectors like DDA, coco amine, tallow-amine, and ether

    Details >
  • The Effect of Quartz on the Flotation of Fine Wolframite

    The influence of quartz on the flotation of fine wolframite using octyl hydroxamic acid (OHA) as the collector was investigated by micro-flotation tests, inductively coupled plasma (ICP) measurements, adsorption experiments, zeta potential, and Fourier transform infrared spectroscopy (FT-IR) analysis. Micro-flotation tests showed that a large difference in floatability existed between fine

    Details >
  • (PDF) The effect of an external magnetic field on cationic

    Reverse cationic duced magnetic materials were attracted to the rotating drum. flotation of quartz is very effective for the beneficiation of iron ores When flotation was completely finished, the magnetic fraction in to produce high grade iron ore concentrates. In this process, quartz the flotation compartment was washed out. Encouraging results as a main gangue mineral is floated with

    Details >
  • Analysis of quartz floatability using design of experiments

    Quartz floatability in cationic reverse flotation depends on the suitable choice of surfactant type and the conditions under which they are applied. The design of experiments (DOE) allows the evaluation of process variables, in a structured and independent way, with statistical validation and a limited number of tests. Tests of microflotation of quartz, in the size range -150 +75 µm, using

    Details >
  • STREAMING POTENTIAL STUDIES. QUARTZ FLOTATION

    QUARTZ FLOTATION WITH CATIONIC COLLECTORS. Country unknown/Code not available: N. p., 1955. Web. Copy to clipboard. Gaudin, A M, & Fuerstenau, D W. STREAMING POTENTIAL STUDIES. QUARTZ FLOTATION WITH CATIONIC COLLECTORS. Country unknown/Code not

    Details >
  • Effect of carbonate alkalinity on flotation behavior of

    Cationic flotation of quartz in the presence of 10 1 M alkalinity can be improved upon increasing the amine addition. However, no improvements can be attained in the oleate flotation of quartz activated with calcium at the same alkalinity. As the carbonate alkalinity of the process water originates from either the dissolu- tion of carbon dioxide in water or dissolution of carbonate minerals

    Details >
  • (PDF) Separation of Feldspar from Quartz: Mechanism of

    Cationic flotation of feldspar from this product was then carried out employing a locally produced quaternary ammonium salt in presence of HF acid, as a silica depressant and a feldspar activator

    Details >
  • Minerals Free Full-Text Effects of Cations/Anions in

    A series of micro-flotation tests using pure fine quartz, bench flotation tests using an iron ore fed in the field, water chemical analyses, and zeta potential measurement were also conducted with the objective of identifying how the cations/anions in the water influence the cationic reverse flotation system of the iron oxides was also made.

    Details >
  • Flotation of Iron Oxides and Quartz—A Review: Mineral

    Froth flotation of iron oxides and quartz is reviewed over the broad range of particle sizes. The review, which embraces laboratory-, pilot plant- and industrial operations, encompasses (i) surface chemistry of iron oxides and quartz flotation (ii) relevant collectors and their adsorption mechanism and (iii) activation/depression in selective flotation, in this system.

    Details >
  • Minerals Free Full-Text Collecting Agent–Mineral

    It is noteworthy that the presence of cations has a detrimental impact on quartz flotation with cationic collectors. The commonly present metal cations in iron ore flotation such as Ca 2+ and Mg 2+ are either sourced from hard water used at the processing plants or released from gangue minerals (e.g., calcite and Mg-bearing siderite) . The concentration of cations can be very high after

    Details >
  • The Effect of Quartz on the Flotation of Fine Wolframite

    The influence of quartz on the flotation of fine wolframite using octyl hydroxamic acid (OHA) as the collector was investigated by micro-flotation tests, inductively coupled plasma (ICP) measurements, adsorption experiments, zeta potential, and Fourier transform infrared spectroscopy (FT-IR) analysis. Micro-flotation tests showed that a large difference in floatability existed between fine

    Details >
  • (PDF) Cationic flotation of iron ores: Amine

    The behaviour of cationic amine collectors used in the reverse cationic flotation of quartz from iron oxide minerals appears to change from one mineral system to the other, deviating from

    Details >

News & Cases

We provide quality and efficient solutions to our global customers