Adsorption properties and column flotation were studied to investigate the interaction of the anionic and cationic collectors and flotation recoveries for talc mineral. Adsorption capacity is dependent on pH, adsorption time, temperature, collector concentration, and particle size. Langmuir adsorption model was suitable for describing …

This study revealed talc, phlogopite, biotite, clays, amphiboles, fluoroapatite and titanite to be the sources of fluorine in the orebody. Laboratory and plant investigations were conducted to study the flotation response of these minerals. Chemical assaying of the products of these tests was done to determine the bulk assay of fluorine.

Talc Flotation—An Overview July Ann Bazar 1, Milad Rahimi 2, Siavash Fathinia 2, Mohammad Jafari 3,*, Vitalis ... ing operations [9,22]. Thus, it is of great interest to remove talc beforehand from the processing plant concentrate. Different kinds of depressants have been reported to inhibit talc floatability, and polysaccharides are ...

Talc Flotation. The mineral talc is found associated with several varieties of gangue material and the flotation process is the efficient and accepted means for production of talc concentrates. In these flotation separations it frequently happens that gangue rejection is a valuable by-product. ... Pilot plant flotation work has indicated ...

Flotation. According to the difference in physicochemical properties of mineral particle surfaces, flotation is the method that selectively enriches the target minerals in the pulp at the gas-liquid interface and separates them from the pulp, thus realizing the mineral separation. It is also known as floating separation.

The results of flotation and adsorption experiments, as well as zeta potential testing, revealed that TA can selectively adsorb on the talc surface to separate …

Copper flotation plants that process fluorine-containing copper ores often adjust their flowsheets based on the ore mineralogy to minimize fluorine recovery. As shown in Table 3, when talc is the primary fluorine-carrying mineral, which naturally exhibits hydrophobicity, reverse flotation can be applied to separate talc by depressing copper ...

In this study the flotation of a copper ore in the presence of talc and muscovite was studied. It was found that talc can affect copper flotation mainly via froth phase. The copper grade and ...

The results of flotation tests performed on mixed minerals indicated that the use of locust bean gum as a depressant can achieve flotation separation of chalcopyrite from talc. A concentrate of 30.1% Cu was achieved at 88.1% recovery from a feed material containing 15.2% Cu.

Certainly the various talc depressants (CMC, guar, etc.) are reasonably effective, and as noted, managing entrainment at a low percent solids (<20%) is a useful tool. Above comment about reverse flotation is very interesting - certainly routinely employed in copper sulphide-molybdenite separation, where the molybdenite is a natural 'floater'.

Since flotation is the most effective beneficiation technique for up-grading sulfides, the high hydrophobicity of talc has made its selective separation challenging. This paper explored …

product containing Ni, Co and iron minerals. He used a flotation plant for the production of high grade talc. Combination of froth flotation and high intensity magnetic separation has been studied for the removal of iron bearing minerals. Wills (1992) reported that increasing concentrat ion of collector tends to float other minerals

Low-cost and environment-friendly green froth flotation modifiers of plant origin, such as guar gum, carboxymethyl cellulose (CMC), and starch, have been used in flotation of some sulfide and non-sulfide minerals. Certain green modifiers may be used as dispersants, flocculants, depressants, or activators. The functions of green modifiers in …

Since flotation is the most effective beneficiation technique for upgrading sulfides, the high hydrophobicity of talc has made its selective separation challenging. …

Greater value at every stage of the operation. We help generate greater value from your operations at every stage of mineral processing including mineral suspension and slurry handling, flotation and other enrichment technologies, mineral concentrate improvement, and tailings management, and water recovery.Our chemical solutions and mineral …

Selective flotation separation of molybdenite and talc by yeast infusion with H2O2 peroxidation. Yi-tong Wu Wen-hao Jia Qian Wei Xiang Lin Fen Jiao Wenqing Qin. Engineering, Chemistry. Colloids and Surfaces A: Physicochemical and…. 2023.

Thus, it is of great interest to remove talc beforehand from the processing plant concentrate. Different kinds of depressants have been reported to inhibit talc floatability, and polysaccharides are commonly used. However, these are expensive and can cost relatively more than other reagents used in the flotation. ... Talc Flotation. 3.1 ...

Therefore, a molybdenum flotation plant should not blindly apply diesel oil instead of kerosene as the collector for molybdenite, but should select diesel oil that is suitable for the properties of its ore. ... Kho and Sohn (1989) reported a good flotation of talc with MIBC. In a more general view Hui et al. (2011) reported that weekly ...

Talc is one of the most problematic gangue minerals for molybdenite flotation owing to its strong natural hydrophobicity. In this work, pullulan polysaccharide …

Abstract. Flotation of low grade talc was carried out in a laboratory flotation column with fine air bubbles. Recovery of talc was approximately 83% with a mean residence of 73 s and a whiteness of 84, which was significantly higher than that of a conventional agitation-type flotation cell. A mathematical model was developed to …

In this study the flotation of a copper ore in the presence of talc and muscovite was studied. It was found that talc can affect copper flotation mainly via froth phase. The copper grade and recovery were affected in the presence of only 7% talc. On the other hand, muscovite influenced the pulp phase via affecting the pulp rheology.

The flotation process was applied for talc– magnesite rock at pH value = 6, pine oil was us ed as a frother by an amount of 0.5 g/L, and Na 2 CO 3 ( 0 . 2 g / L ) w a s u s e d a s a d e p r e s ...

Abstract: The flotation separation of chalcopyrite and talc is challenging due to their similar natural floatability characteristics. Besides, it is usually difficult to effectively inhibit talc by …

Therefore, the depression of talc flotation attracted extensive attention. Selective depression of talc was usually achived by adding depressants and a large number of studies showed that many organic macromolecules could effectively depress talc flotation. ... In this paper, the effect of Tannic acid (TA), a green, biodegradable plant ...

Oil collectors are used to improve molybdenite flotation and the comparison with thiol collectors is discussed. ... Similar effect is reported for talc, which has identical anisotropic surface properties (Fuerstenau et al., 1988). ... Copper and molybdenite recovery in plant and batch laboratory cells in porphyry copper rougher flotation;

This paper investigated the effects of using or not using potassium butyl xanthate (PBX) as a collector on the flotation kinetics of talc and chalcopyrite. By means of atomic force microscopy (AFM), …

Starch, a typical representative of polysaccharide agents, mainly derived from plant sources such as corn, potatoes, or wheat, is a polysaccharide composed of glucose molecules. ... leading to increased phase angle changes and inhibiting talc's flotation. DFT simulation results demonstrated that, without the introduction of water …

Talc is a naturally hydrophobic gangue mineral in most sulfide ores. However, talc has vast applications in the cosmetics, paper, and paint industries due to its high chemical stability, and its demand continues to grow. Since flotation is the most

Effect of synthetic process plant water and Hallimond tube column height on the flotation of talc and brucite in the absence of depressant. Results of the depressant effect of the P(Am -co- VPD) copolymers and guar using the modified Hallimond tube are summarized in Fig. 3 .

Talc Flotation. Edit. 1. 0. Talc is a naturally hydrophobic gangue mineral in most sulfide ores. However, talc has vast applications in the cosmetics, paper, and paint industries due to its high chemical stability, and its …

The results of our flotation tests showed the talc floating can be effectively depressed via the combination depressant effect of calcium ions and CLS over the pH range of 6–12.

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In this paper, the effect of Tannic acid (TA), a green, biodegradable plant polyphenol, as a talc depressant on the separation behavior of talc and chalcopyrite was investigated. The results of micro-flotation studies revealed that at a TA dosage of 20 mg/L at pH 7, talc recovery was barely 10 % whereas chalcopyrite recovery remained above …

The kinetics of the two tests focused on the native flotation of talc from the ore (#100 and #200), which will be used as a comparison for th e results measured in the presence of the other ...