mining of amphoteric collector

The novel amphoteric surfactant 2-((2-(decyloxy)ethy l)amino)lauric acid was used as the collector and synthesized in the laborato ry (Luo e t al., 2018) . Non -modified corn starch provide d by ...

In the current work, an amphoteric collector was used as an alternative for the current reagents. Pure minerals of silica and hematite were used to investigate the mechanism of the amphoteric collector adsorption on both minerals. It was found that the adsorption density of collector was pH dependent.

collector has become a must especially with the global depletion of the rich and easy to process siliceous phosphate ores. An amphoteric surfactant was found to be used as a …

Shao, X., Jiang, C.L. & Parekh, B.K. Enhanced flotation separation of phosphate and dolomite using a new amphoteric collector. Mining, Metallurgy & …

The literature on the interaction between sparingly soluble calcium minerals and the flotation environment is reviewed. The review is restricted to apatite, calcite and fluorite as minerals and fatty acids as collectors. The mechanisms by which the reagents react with the surface, the forms they assume at the surface and how the latter affect ...

Here are some examples of amphoterism: Metal oxides or hydroxides are amphoteric. Whether a metal compound acts as an acid or a base depends on the oxide oxidation state. Sulfuric acid (H 2 SO 4) is an acid in water but is amphoteric in superacids. Amphiprotic molecules, such as amino acids and proteins, are amphoteric.

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Pure minerals of silica and hematite were used to investigate the mechanism of the amphoteric collector adsorption on both minerals. It was found that …

In froth flotation, special surfactants (known as so-called collectors) selectively cling to specific minerals in mineral/water slurry to increase their surface hydrophobicity so that the hydrophobized mineral particles can attach selectively to air bubbles and transfer to water/air interface [1]. Commonly, a flotation collector consists of ...

Professor - Mining, Petroleum and Metallurgical Engineering Dept. Bacterially Induced phosphate–dolomite separation using amphoteric collector. View; What links here; Citation: Elmahdy, A. M., S. E. El-Mofty, N. A. Abdel-Khalek, and A. A. El-Midany, "Bacterially Induced phosphate–dolomite separation using amphoteric collector", …

According to the ore nature of limonite in Xinjiang,use the technological process of one stage selectrifine high magnetic separation—reverse flotation to the limonite. the result show that at the fineness ore of -200order 60.0%, employ the closed-circuit process,Limonite concentrates aining above 52.24％ Fe could be obtained at a productive rate of …

Commercial-grade dodecyl-N-carboxyethyl-N-hydroxyethyl-imidazoline, a new amphoteric surfactant, has been found to be a good collector for the separation of dolomite and phosphate by flotation.Studies conducted with pure natural phosphate and dolomite minerals showed the effects of the dissolved species and temperature on the selectivity …

The utilization of bacteria alone or in presence of collector offers a good solution in terms of increasing the separation selectivity. In this study, the bioflotation was tested using two bacterial strains (Corynebacterium-diphtheriae-intermedius, CDI, or Pseudomonas Aeruginosa, PA) in the presence of amphoteric collector.

Transactions of the Institutions of Mining and Metallurgy: Section C Volume 117, 2008 - Issue 3. Submit an article Journal homepage. 36 Views 3 ... In the current work, an amphoteric collector was used as an alternative for the current reagents. Pure minerals of silica and hematite were used to investigate the mechanism of the amphoteric ...

The results show that the collector−bacteria interaction improves the flotation selectivity. Although, the PA positively affects the separation results, the CDI cannot lower the MgO to less than 1%. A phosphate content of 0.7% MgO and 31.77% P2O5 with a recovery of 68% at pH 11, 3.0 kg/t amphoteric collector, 4×10 7 cells of PA is obtained.

The amphoteric surfactants seem to be potential selective collectors for some oxide minerals. Description Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act ...

A phosphate content of 0.7% MgO and 31.77% P 2 O 5 with a recovery of 68% at pH 11, 3.0 kg/t amphoteric collector, 4×10 7 cells of PA is obtained. ... Mining, Petroleum and Met allurgical ...

Transactions of the Institutions of Mining and Metallurgy: Section C ... by flotation with a new amphoteric surfactant as collector, Mineral Processing and Extractive ... when the new collector ...

As a result, amphoteric lecithin acts as an effective collector, producing a concentrate containing 30.05% P 2 O 5 with a recovery of 98.21% at pH 5. Likewise, a high quality and environmentally friendly sample with a content of 32.39% and a recovery of 96% was obtained at the natural pH of the pulp (8.5) without any reagents to modify the pH ...

Bacterially induced phosphate–dolomite separation using amphoteric collector. Ayman El-Midany. 2013, Separation and Purification Technology. See Full PDF Download PDF.

The results show that the collector-bacteria interaction improves the flotation selectivity. Although, the PA positively affects the separation results, the CDI cannot lower the MgO to less than 1%. A phosphate content of 0.7% MgO and 31.77% P 2 O 5 with a recovery of 68% at pH 11, 3.0 kg/t amphoteric collector, 4×10 7 cells of PA is obtained.

College of Mining, Guizhou University, Guiyang 550025, Guizhou, China. More Information. Received Date: 11 October 2021. Publish Date: 25 December 2021. …

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An amphoteric collector was tested for dolomite removal from phosphate ore. The effects of some operating parameters and their significance on the flotation of dolomite were studied using statistically designed experiments. The parameters studied were impeller speed, pH and collector dosage. Analysis of the results showed that pH is …

In this study, an amphoteric collector was used to remove the dolomite from phosphate ore as one trial in this field. The optimisation of this process using one factor at a time is a tedious process. Therefore, the factorial design was used for maximising dolomite separation efficiency.

The design and development of selective flotation collectors has been the key to the remarkable success of flotation in beneficiating complex, difficult-to-process ores. Sustained research efforts in the field over the past hundred years have led to delineating the scientific basis of selective mineral flotation in terms of the crystal chemistry and the …

In each experiment, 2.00 g of the single or binary mineral mixture (1.00 g of scheelite + 1.00 g of calcite) was stirred with 35 mL of DI water. The desired collector was added to the mixtures, stirred for 3 min, and then the floatation was conducted for 3 min after adjusting the pH value.

Keywords: Amphoteric collector, Zeta potential, Electrostatic interaction, Adsorption Introduction ... 2008 Institute of Materials, Minerals and Mining and The AusIMM

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A new amphoteric collector, α-benzol amino benzyl phosphoric acid (BABP), was synthesized and its collecting properties for calcium-con- taining minerals were examined through micro-flotation ...

In this study, the adsorption of amphoteric collector (dodecyl-N-carboxyethyl-N-hydroxyethyl-imidazoline) on silica and hematite was studied. The …

Pure minerals of silica and hematite were used to investigate the mechanism of the amphoteric collector adsorption on both minerals. It was found that …