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Selective flotation of scheelite from calcite and fluorite
网页2015年3月1日Selective flotation of scheelite from calcite and fluorite using a collector mixture 1. Introduction. The flotation separation of scheelite from other calcium-containing minerals such as fluorite and 2. Materials and methods. Pure fluorite and
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Selective flotation of scheelite from calcite using a novel self
网页2021年9月1日Pb-BHA complex collectors, composed of a mixture of lead nitrate and benzohydroxamic acid (BHA), exhibits good selectivity for scheelite and can selectively
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The flotation separation of scheelite from calcite and
网页2017年12月10日The results demonstrate that DSS is a selective depressant for calcite and fluorite. The flotation of calcite and fluorite was almost totally depressed at a DSS
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Selective flotation of scheelite from calcite and fluorite using a
网页2015年3月1日Conclusions. The collector mixture of 733+MES at mass ratio of 4:1, is selective to scheelite than 733 alone. The addition of WG prior to collector addition has
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Froth flotation of scheelite A review ScienceDirect
网页2018年5月1日The main objective was and remains the selective flotation of scheelite from other calcium-bearing minerals, in particular calcite, fluorite and apatite. Due
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Selective flotation of scheelite from calcite: A novel reagent
网页2016年9月10日The flotation tests showed that a novel reagent scheme, i.e., a lower dosage of SS (300 mg/L) and mixed collectors of HXMA-8 + NaOl (total
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Selective flotation of scheelite from calcium minerals with sodium
网页1983年4月1日Selective flotation of scheelite from calcium ores is more difficult. In general, by floating the crude ore with sodium silicate and fatty acids, a scheelite-calcium
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Investigation of the Flotation Separation of Scheelite
网页2022年4月24日Investigation of the Flotation Separation of Scheelite from Fluorite with a Novel Chelating Agent: Pentasodium Diethylenetriaminepentaacetate by Chenhu Zhang 1,2,3, Haijun Wu 1,3,
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Selective Flotation of Calcite from Fluorite: A Novel
网页2016年10月26日For an economic separation, a reverse flotation process is used to float calcite gangue from fluorite. However, little information on the separation is available.
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Flotation Separation of Scheelite from Fluorite Using
网页2017年6月16日The depressing properties of sodium polyacrylate (PA-Na) for scheelite and fluorite were studied by micro-flotation tests, infrared spectroscopy (IR), zeta potentials, X-ray photoelectron spectroscopy
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Selective flotation of scheelite from calcite using a novel self
网页2021年9月1日Selective flotation of scheelite from calcite and fluorite using a collector mixture. Miner. Eng., 72 (2015), pp. 23-26. View PDF View article View in Scopus Google Scholar. Selective flotation of scheelite from calcite using Al-Na 2 SiO 3 polymer as depressant and Pb-BHA complexes as collector. Miner. Eng., 120 (2018), pp. 29-34.
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Investigation of the depressants involved in the selective flotation
网页2019年6月15日Hence, the selectivity between scheelite and fluorite was not enhanced with the addition of iron sulphate. Compared to the addition of sole sodium silicate, the combination of 75 g/t zinc sulphate with 1225 g/t sodium silicate led to better apatite flotation, while the scheelite, fluorite, and silicates were only slightly more depressed.
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(PDF) Scheelite flotation: a new scheme using oleoyl
网页1994年10月1日[Show full abstract] calcite with Na2CO3 in scheelite rougher flotation the fluorite flotation can be carried out more easily, and the fluorite concentrate with a grade of CaF2 97.42% and CaCO3 0.
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Application of a new amidoxime surfactant in flotation separation
网页2022年10月15日Micro-flotation test and binary mixed ore flotation test were carried out to explore the unique properties of the new DPA whether it has greater potential and excellent flotation performance in separating scheelite from calcium-bearing gangue minerals (calcite), based on a comparison with the conventional trap sodium oleate (NaOL).
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Effect of Pb(II) on the flotation behavior of scheelite using
网页2019年6月1日The Fe-BHA chelate also showed a good separation performance in the artificially mixed mineral flotation tests of scheelite and calcite at pH 8.0, as well as of scheelite and fluorite at pH 11.0. The zeta potential measurement results showed that the Fe-BHA chelate altered the zeta potential of scheelite to more positive values compared
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The flotation separation of scheelite from calcite and fluorite
网页2017年12月10日Introduction. Scheelite (CaWO 4) is a typical tungstate mineral and usually co-exists with other calcium-containing minerals, such as calcite (CaCO 3) and fluorite (CaF 2) in deposit.By now, flotation is the most commonly used technique to separate scheelite from calcite and fluorite. Long chain carboxylic acids, such as fatty
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Investigation on the selectivity of ScienceDirect
网页2016年1月25日Hu and Xu investigated the flotation performances of α-benzol amino benzyl phosphoric acid for calcium-containing minerals, such as apatite, scheelite, calcite and fluorite, and found that α-benzol amino benzyl phosphoric acid exhibited superior collecting power to fluorite or calcite and selectivity against scheelite or apatite [1].
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Flotation separation of scheelite from calcite using pectin as
网页2019年6月1日In this , pectin, a polymer polysaccharide, was studied for its depression during the selective flotation separation of scheelite from calcite. Zeta potential experiment, FTIR analysis and XPS analysis were used to explain the selective depression mechanism of pectin on the two minerals. The microflotation experiment
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Investigation on the selectivity of ScienceDirect
网页2016年1月25日Collector 733, a sodium soap (C 12 16 COONa) is widely used industrially for scheelite flotation. Low selectivity of 733 collector is always observed. In this study, a collector mixture of 733 and MES (sodium fatty acid methyl ester sulfonate) demonstrated a high selectivity for the flotation of scheelite from calcite and fluorite.
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Investigation of the depressants involved in the selective flotation
网页2019年6月15日Froth flotation of scheelite has regained new focus since the 2010s and research regarding floatability and reagents has made great progress over the years. The main objective was and remains the selective flotation of scheelite from other calcium-bearing minerals, in particular calcite, fluorite and apatite.
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Selective Flotation of Scheelite from Calcite Using a Novel
网页2020年9月22日Abstract. Scheelite and calcite are usually intergrown calcium minerals that are separated via froth flotation. However, their selective separation remains difficult because of their similar
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Flotation separation of scheelite from fluorite by using DTPA
网页2022年1月1日The selective separation of scheelite from fluorite is difficult because of their similar surface properties. In this study, diethylenetriaminepentaacetic acid (DTPA) was used as a novel depressant for the efficient removal of fluorite from scheelite, and its depression effect and mechanism were systematically investigated by conducting micro
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Effects of Ferrous Sulfate Addition on the Selective Flotation of
网页2020年9月30日The flotation tests indicate that the selectivity of scheelite recovery was the largest over calcite and fluorite under the following conditions: 0.5 g sample, 50 g/ton AF65, 1 × 10−3 M sodium oleate, 1200 g/ton SF2 (sodium silicate and ferrous sulfate) depressant with the 8:2 ratio of sodium silicate and ferrous sulfate, 50 mL/min air
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Development of an environmentally friendly flowsheet to
网页2018年6月10日Froth flotation of scheelite has regained new focus since the 2010s and research regarding floatability and reagents has made great progress over the years. The main objective was and remains the selective flotation of scheelite from other calcium-bearing minerals, in particular calcite, fluorite and apatite.
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Flotation separation of fluorite from calcite using polyaspartate
网页2018年5月1日Worldwide, flotation techniques with a selective collector and/or a selective depressant are commonly preferred for the separation of fluorite from calcite. In the present study, an attempt was made to use benzhydroxamic acid (BHA) as a collector for the selective separation of fluorite from calcite without using any depressant.
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Selective flotation of scheelite from calcite using xanthan gum
网页2019年7月1日XG has excellent selective inhibition effect on calcite during scheelite flotation. When the dosages of depressant XG and the collector NaOL are 20 mg/L and 4.0 × 10 −5 mol/L, the recovery of calcite is drastically reduced to only 1.79%, while scheelite still has a very high flotation recovery of 81.32% at pH 8.
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Selective flotation separation of fluorite from calcite by
网页2021年7月1日In the field of fluorite and calcite flotation separation, conventionally depressants are water glass, acidified water glass (Zhou and Lu, 1992, Zhou et al., 2013), tannic acid (Gao et al., Effect of depressants in the selective flotation of scheelite and calcite using oxidized paraffin soap as collector. Int. J. Miner. Process
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Effect of depressants in the selective flotation of scheelite and
网页2016年12月10日Both scheelite and calcite showed good flotation in the pH region from 8 to 12 and the optimum condition for scheelite flotation around pH 9. The high recovery of scheelite and calcite in the basic region is attributed to interaction between RCOO − and Ca ions on mineral surface ( Gao, 2014 ).
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New insights into the depressive mechanism of citric acid in the
网页2021年9月1日The effects of citric acid (CA) as a depressant in the separation of scheelite and fluorite were evaluated by microflotation test. The underlying selective separation mechanism was revealed via wetting analysis, Fourier transform infrared (FTIR) spectroscopy, thermodynamic calculations, adsorption amount tests, inductively coupled
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Interaction mechanism of a novel reagent scheme in the selective
网页2022年12月15日The selective separation of scheelite from fluorite is difficult because of their similar surface properties. In this study, diethylenetriaminepentaacetic acid (DTPA) was used as a novel depressant for the efficient removal of fluorite from scheelite, and its depression effect and mechanism were systematically investigated by conducting micro
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