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Flotation of siliceous phosphate rock
Reagents used in the flotation of phosphate ores: a critical
2003/7/1 In direct flotation, phosphate minerals are floated at basic pH with usually anionic collectors and depressant/modifier for gangue minerals. In reverse cationic flotation, siliceous
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Column flotation of siliceous rock phosphate Mining,
1996/11/1 These results demonstrated that, from an ore containing 12.76% P2O5, it is possible in a single-stage flotation column to obtain a concentrate containing 31% P2O5
获取价格Double reverse flotation of a very low grade sedimentary phosphate rock ...
2011/9/14 In this study, reverse flotation was applied to recover phosphate from a very low grade (5.01% of P 2 O 5) sedimentary ore. Sodium silicate, starch, tannic acid, aluminum
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中低品位硅钙质磷矿石双反浮选的探索试验-《武汉工程大学 ...
2017/6/9 化学与化学工程. 出版期: 2017-12-30. Title: Exploratory Testing of Double-Reverse Flotation for a Middle-Low Grade Calcareous-Siliceous Phosphate. 文章编号: 1674 -
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中低品位硅钙质磷矿石双反浮选试验研究
摘要: 针对贵州某中低品位硅钙质磷矿石，采用捕收剂GJBW和捕收剂AY进行双反浮选试验，考察磨矿细度和药剂制度对浮选的影响。. 试验结果表明：在磨矿细度为-0.075 mm含量占78.08%
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OneMine Column Flotation Of Siliceous Rock Phosphate
1997/1/1 These results demonstrated that, from an ore containing 12.76% P2O5, it is possible in a single-stage flotation column to obtain a concentrate containing 31 % P2O5
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Beneficiation of a lean-grade siliceous rock-phosphate ore
1998/8/1 Froth flotation was employed to beneficiate a lean-grade siliceous rock-phosphate ore containing fluorapatite, the phosphate-bearing mineral. The main gangue minerals were
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A comparison of anionic and cationic flotation of a siliceous phosphate ...
Semantic Scholar extracted view of "A comparison of anionic and cationic flotation of a siliceous phosphate rock in a column flotation cell" by Aljbour Salah et al.
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Synergetic effect of cottonseed fatty acid salt and nonionic
2021/8/5 Direct and reverse flotation process was further applied to remove silicate and carbonate gangue minerals in the siliceous calcareous phosphate rock using the mixture of
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Reagents used in the flotation of phosphate
2003/7/1 Phosphate rock needs processing to reduce the content of gangue minerals such as silicates, carbonates, and clays to meet the requirements of the phosphate industry. Froth flotation method has ...
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Challenging the “Crago” double float process II. Amine-fatty
1997/9/1 In the conventional phosphate flotation (Crago) process, 30–40% by weight of the silica present in the feed are floated twice, first by fatty acid, and then by amine. ... depressants for the dual purposes of developing alternate phosphate beneficiation processes for the currently mined siliceous phosphate deposits as well as removing dolomite ...
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Cyclonic flotation column of siliceous phosphate ore
2012/7/18 The introduction of cyclonic circulation method is one of the most important developments in column flotation technology in the last years. In this study, effect of a cyclonic flotation column on the flotation performance of a siliceous phosphate ore was evaluated by the experiments on circulation pressures and circulation methods.
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Selective separation of silica from a siliceous–calcareous phosphate rock
2011/1/31 The direct-reverse flotation process, in which the siliceous minerals are discharged by direct flotation while the calcareous minerals are discharged by reverse flotation, is a popular approach to ...
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2016/1/10 Phosphate rock resources are very rich in Guizhou province. The calcareous–siliceous types of phosphate ores are extremely difficult to be concentrated by flotation, because the similar physicochemical characteristics of surfaces of the main constituents, carbonates and phosphates.
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Evaluation of Estonian phosphate rock by flotation
2021/9/1 For sedimentary siliceous ores, the anionic– cationic flotation termed the “Crago technique” is the common method for upgrading the content of P 2 O 5 which consists of anionic flotation of phosphate using fatty acid collectors and deoiling of the rougher concentrate with H 2 SO 4 to remove the reagents, followed by cationic reverse ...
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A comparison of anionic and cationic flotation of a siliceous phosphate ...
2011/1/31 Flotation performance of a de-slimed (−150 + 53 μm) Jordanian siliceous phosphate was evaluated in a batch laboratory flotation column 100 cm high and 5 cm inside diameter.
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Separation strategies for Jordanian phosphate rock with siliceous
2010/11/1 In this study, effect of a cyclonic flotation column on the flotation performance of a siliceous phosphate ore was evaluated by the experiments on circulation pressures and circulation methods. The feed and flotation products were characterized by size fraction, X-ray diffraction and X-ray fluorescence.
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Reagents used in the flotation of phosphate ores: a critical
2003/7/1 Phosphate rock needs processing to reduce the content of gangue minerals such as silicates, carbonates, and clays to meet the requirements of the phosphate industry. ... In reverse cationic flotation, siliceous gangue materials are floated from phosphate ore at around neutral pH using a cationic amine type collector. On the other hand,
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Review on Beneficiation Techniques and Reagents Used for Phosphate
2019/4/25 The phosphate ores mainly contain the siliceous phosphate rock, calcareous phospha te rock and calcareous-siliceous phosphate rock. Different types of phosphate ores s hould be subjected to specific
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Beneficiation of a lean-grade siliceous rock-phosphate ore
1998/8/1 Froth flotation was employed to beneficiate a lean-grade siliceous rock-phosphate ore containing fluorapatite, the phosphate-bearing mineral. ... J., and Anazia, I.J., 1993, “New processes for direct phosphate flotation from US siliceous ores,” Mining Engineering, pp. 184–188. Google Scholar Hanumantha Rao, K., Antii, B.M., and Forssberg ...
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Study on Double Reverse Flotation of a Low Grade Siliceous
2018/4/25 In this paper, the effect of the grinding fineness and the reagent regime on the flotation of low grade calcareous-siliceous phosphate in Guizhou was investigated by using the collector AY and GJBW. The results showed that when the grinding fineness was 78.08% below 0.075 mm, the optimal reagent regime was 7.5 kg/t mixed acid (sulphuric acid and phosphoric
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Bio-Flotation of Egyptian Siliceous Phosphate Ore Using
2018/8/1 The calcareous and/or dolomitic-siliceous phosphate ores of South Florida and Utah required two flotation stages: one for carbonate removal and the other for phosphate recovery from siliceous gangue.
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Beneficiation of refractory rock phosphate by calcination and flotation
2011/11/1 Separation of refractory rock phosphate (P2O5 = 11.5%) from the Dalir area, Iran, containing quartz, calcite and other impurities, by calcination and flotation processes has been successfully used to upgrade the phosphate values. Petrographic studies of this ore showed that collophanite was the major phosphate mineral and the main gangue minerals were calcite,
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Review of the reagents used in the direct flotation of phosphate ores ...
Similarly, a study on the flotation of apatite from siliceous-calcareous phosphate ore proved that the mixed of 10% of nonionic ethoxylated nonylphenol EP-4 surfactant with cottonseed oil fatty acid salt as a collector resulted in a phosphate concentrate assaying 30.95% P 2 O 5 at 90.5% recovery from a feed containing 22.14% P 2 O 5 (Ruan et al ...
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A comparison of anionic and cationic flotation of a siliceous phosphate ...
2012. The sedimentary phosphate deposit of Bayovar is located in a very dry area of Peru (desert of Sechura) which is close to the Pacific coast.
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Column flotation of siliceous rock phosphate Mining,
1996/11/1 Factorial design of column-flotation experiments was used to understand the main and interactional effects of the column parameters. In the experiments, the air flow rate, the wash-water flow rate and the froth depth were varied at two levels. Analysis of the results showed that an increase in air flow rate had a deleterious effect on the grade of the concentrate,
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Optimization of the Flotation of Low-Grade Phosphate Ore
2022/12/7 Phosphate ores upgraded by flotation are widely used as vital raw materials for the sustainable production of phosphate fertilizers to maintain the food supply. ... Chi R (2021) Synergetic effect of cottonseed fatty acid salt and nonionic surfactant NP-4 in the froth flotation of siliceous-calcareous phosphate rock. Colloids Surf, A 622:126650. ...
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2022/12/25 Siliceous phosphate rock, UmmWu'al Mine, Saudi Arabia (10–30% silica). XRT (12 and 75 mm) 15–16: Low ... According to the results of several studies on the flotation of phosphate ores, reverse flotation can be used as a unique process for sedimentary phosphate ore (Abdel-Khalek, 2000; Boujlel et al., 2019).
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A modification in the flotation process of a calcareous–siliceous ...
2014/12/1 The flotation of siliceous sedimentary phosphate is becoming a common-place practice after the Florida “Crago” technology paved the road to fatty acids reverse or direct flotation circuits. ... (FIPR), 1988. Separation of Dolomite from the South Florida Phosphate Rock, vol. III, 82-02-023. Google Scholar. Kiukkola, 1980. Kiukkola, 1980 ...
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