Flotation Fluorite Depressing Po
Selective Depression of Talc in Cuprite Sulfidation Flotation …
As a common gangue mineral with natural hydrophobicity, talc is normally found in nickel sulfide ores, molybdenite ores and copper oxide ores [1,2,3].In fact, when talc particles are crushed and ground as flotation feed, the basal surface accounts for about 90% of the total surface of talc particles, and the basal face is hydrophobic [4, 5], which does not have …
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Flotation Depressants
Depressing Reagents. The commonest depressing reagents are lime, sodium cyanide, and zinc sulphate. Lime is extensively used to prevent pyrite from entering the concentrate of other minerals particularly copper and zinc sulphides.
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Clean utilization of waste oil: Soap collectors prepared by …
DOI: 10.1016/j.jclepro.2019.118179 Corpus ID: 203159860; Clean utilization of waste oil: Soap collectors prepared by alkaline hydrolysis for fluorite flotation @article{Zhu2019CleanUO, title={Clean utilization of waste oil: Soap collectors prepared by alkaline hydrolysis for fluorite flotation}, author={Xiang-nan Zhu and Xian-jun Lyu and Qiang Wang and Jun Qiu and Sha …
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The mechanism of sodium silicate depressing fluorite in …
DOI: 10.1016/j.molstruc.2024.137861 Corpus ID: 267961041; The mechanism of sodium silicate depressing fluorite in scheelite heating flotation @article{Xu2024TheMO, title={The mechanism of sodium silicate depressing fluorite in scheelite heating flotation}, author={Shitong Xu and Haiwei Huang and Baiqing Wang and Sili Ren}, journal={Journal of Molecular Structure}, …
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The exploration of tannin extract as a green depressant in …
1. Introduction. Fluorite is an important strategic resource with the formula of CaF 2 which has been used in the field of fluorine chemical industry, optical lens, cosolvent in the smelting process as well as ceramics due to its special physicochemical properties [1], [2], [3].With the rapid depletion of high-quality fluorite ores, the exploitation of low-grade …
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The mechanism of sodium silicate depressing fluorite in …
Flotation tests were performed on a skarn ore to attain the selective separation of scheelite (CaWO 4 ) from fluorite, apatite, and silicates.
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Comparison Between Performance of Fluorite …
Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2). This mineral is widely distributed through different deposits. However, in most cases, fluorite is tightly associated with gangue, such as …
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Flotation separation of bastnaesite from fluorite with an …
Recently, some novel depressants have been investigated and employed for depressing the Ca-bearing minerals including fluorite and calcite in the flotation of bastnaesite. Cao et al. [22] used the ethylenediamine tetraacetic acid (EDTA) as a depressant for selectively inhibiting fluorite in the flotation of bastnaesite with the OHA as a ...
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Flotation separation of fluorite from calcite using …
For example, tannin and starch were used as depressants in fluorite flotation to depress calcite [5], [21], [22]. ... NaOL, the contact angle decreased from 73.35° to 42.59° on the surface of calcite, illustrating that SL had a strong depressing effect on calcite. Thus, calcite had a poor floatability with SL and NaOL. ...
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Effect of phytic acid on the surface properties of scheelite …
First, the flotation separation using NaOl at a dosage of 4 × 10 −5 mol/L was evaluated by a single mineral test. As shown in Fig. 2, the flotation results indicate that the recovery of scheelite increased gradually with increasing pH.Above pH 8.5, the floatability was indistinctively reduced. In addition, it can be seen that the recovery of fluorite increased with …
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Selective flotation of fluorite from barite using trisodium …
The single mineral flotation results show that it may be possible to separate fluorite from barite with TSP in the presence of NaOl. Therefore, flotation tests of mixed fluorite and barite (the mass ratio is 4:1) were conducted at pH 8.5 using different dosages of …
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Optimal Depressants and Collector Dosage in Fluorite Flotation …
Alternative processes have been proposed for selective separation of fluorite and gangue minerals (carbonates and silicates) present in fluorspar ores. Calcination and gravity separation processes are methods that have low efficiency and high cost. Flotation is a chemical process that becomes important when high ore grades are required; however, the selectivity is …
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Flotation separation of fluorite from calcite using …
For example, tannin and starch were used as depressants in fluorite flotation to depress calcite [5], [21], [22]. ... Investigation of two-stage depressing by using hydrophilic polymer to improve the process of fluorite flotation ... The results of micro-flotation tests indicate that H 3 PO 4 or H 2 SO 4 exhibits a strong selective depression ...
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Effect of an Environment-Friendly Depressant on the Flotation …
The flotation results showed that the recovery of fluorite decreased by 89.71% when 4 mg/L PESA was added to the flotation system, while the bastnaesite recovery only exhibited a slight reduction ...
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Investigation of the depressants involved in the selective flotation …
Phosphate derivatives as sodium hexametaphosphate [(NaPO 3) 6], sodium phosphate (Na 3 PO 4), and sodium pyrophosphate (Na 4 P 2 O 7) are also widely used inorganic depressants for scheelite flotation from calcite and fluorite, known to chelate Ca 2+ ions in solution leading to a surface depletion in terms of calcium ions [6, 18, 32, 34 ...
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Evaluation of 1-hydroxyethylidene-1,1-diphosphonic
1-Hydroxyethylidene-1,1-diphosphonic acid used as pH-dependent switch to depress and activate fluorite flotation I: Depressing behavior and mechanism. Jianjun Wang Wenheng Li Zihan Zhou Zhiyong Gao Yue-hua Hu Wei Sun. Environmental Science, Chemistry. 2020; 72. Save.
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Flotation separation of fluorite from calcite by a new …
DOI: 10.1007/s11771-023-5282-z Corpus ID: 258336809; Flotation separation of fluorite from calcite by a new depressant curdlan and its mechanism @article{Han2023FlotationSO, title={Flotation separation of fluorite from calcite by a new depressant curdlan and its mechanism}, author={Wen-jie Han and Yi Min Zhu and Wenxu Ge and Jie Liu and Yanjun Li …
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Study on synergistic inhibition and mechanism of flotation …
Through the flotation process of primary roughing, primary sweeping and four-stage selection of fluorite ore, a qualified fluorite concentrate with CaF 2 grade of 95.52% and recovery of 91.20% was ...
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flotation fluorite depressing po
Contribute to dinglei2022/en development by creating an account on GitHub.
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Solution chemistry behavior of sodium silicate in flotation of fluorite …
Complex solution system can be difficult to deal with by conventional solution chemistry calculation. In order to avoid this problem and investigate the influence of sodium silicate on the flotation of scheelite from fluorite, Newton-Raphson method was applied to solution chemistry calculation. And a new kind of species distribution diagram was drawn in terms of changing …
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Investigation of two-stage depressing by using
Request PDF | Investigation of two-stage depressing by using hydrophilic polymer to improve the process of fluorite flotation | Fluorite is a non-renewable mineral that is used for anhydrous ...
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Investigation of two-stage depressing by using hydrophilic …
A tech-economic assessment based on the pilot program showed that compared with sodium silicate, the new technology (dextrin + tannin) improved fluorite recovery by 19.23%, removal rate of CaCO 3 by 13.43% and SiO 2 by 8.93% and reduced production costs by $2914.8 per day. The technology (dextrin + tannin) produced an excellent result, simplifying the flow …
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Optimal Depressants and Collector Dosage in Fluorite …
Alternative processes have been proposed for selective separation of fluorite and gangue minerals (carbonates and silicates) present in fluorspar ores. Calcination and gravity separation processes are methods that have low efficiency and high cost. Flotation is a chemical process …
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Effect of an Environment-Friendly Depressant on the …
To overcome the difficulty of separating bastnaesite from fluorite through the flotation technique, the present study examined the suitability of sodium alginate (SA) as a depressant in the flotation process. The effect of SA on the flotation separation of …
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Adsorption and depression mechanism of an eco-friendly …
In this work, dextrin, an effective and eco-friendly organic compound, was used to separate fluorite from calcite. The depression performance and adsorption mechanism of it on the calcite surface were investigated by flotation experiments, contact angle measurements, …
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(PDF) Reverse Flotation Separation of Fluorite from Calcite: …
Fluorite (CaF2), as an important strategic mineral source, is usually separated from calcite by the common froth flotation method, but this separation is still not selective enough.
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Flotation Separation of Fluorite from Calcite using an …
Fluorite and calcite were separated with nitrilotriacetic acid (NTA) as a depressant. The single mineral flotation experiment confirmed that with 40 mg/L NaOL and 80 mg/L NTA, the fluorite recovery and calcite recovery were 24.37 and 94.13%, respectively, at …
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Depressing behaviors and mechanism of an eco-friendly …
It could be found that GM could strongly depressed the flotation of cassiterite but nearly affected the fluorite flotation, and an excellent separation effect (fluorite recovery of 97.43%, cassiterite recovery of 4.54%) could be obtained at the conditions of pH 8.00, GM dosage of 1.0 mg/L and SPA dosage of 80 mg/L.
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Role of calcium ions and their interaction with depressants in
The commonly utilized flotation scheme in phosphate industry is reverse flotation using fatty acids in acidic media adjusted by H2SO4. The acidity of the flotation pulp results in presence of different ionic species that play a crucial role in modifying the minerals' surfaces. Therefore, the flotation of pure phosphate was investigated in presence of H2SO4 …
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Investigation of two-stage depressing by using hydrophilic polymer …
The industrial tests were performed at Hunan Xinyuan Corporation's Fluorite Flotation Plant. In these tests, mud was removed early in the process by fluorite desliming rougher flotation. The old system used sodium silicate as a depressant during flotation. The flotation flowsheet of the industrial tests is described in Fig. 7. The new system ...
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