Towards the efficient flotation of monazite from silicate-rich tailings with fatty acids collectors using a lanthanum salt as a selective phosphate activator

Geneyton, Anthony; Filippov, L.O.; Heinig, Thomas; Buaron, N.; Ménad, Nour‐Eddine

doi:10.1016/j.mineng.2020.106704

Cited by 13 publications

(9 citation statements)

References 63 publications

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“…Igneous rock deposits consist of fluorapatite ore, mainly carbonatites and other types of alkaline intrusions. The magmatic ores are widely of lower grade though give higher-quality enriched products with low contents of impurities [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Reverse flotation process in double stage on the Algerian phosphate ore treatment

Merzeg¹,

Bezzi²,

Bouzidi³

et al. 2023

Nauk. visn. nat. hirn. univ.

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Purpose. In this work, the influence of flotation reagents on the separation yield of the phosphate-carbonate system is studied. The investigation is conducted by the reverse flotation process in double stage of the phosphate ores from the Jebel Onk deposit-Algeria. Methodology. The experimental part can be divided into three aspects, a mechanical preparation of the samples, and flotation tests in the first stage followed by a double flotation and, finally, characterization of the flotation products by different physical-chemical analysis techniques. Findings. Reverse flotation double stage process was applied on two classes of phosphate ores (C1: 40–250 and C2: 250–500 m). The samples are constituted by phosphatic elements (apatite), cemented by a mixture of a great amount of dolomite with low amounts of quartz, clay and calcite. Flotation results showed that P2O5 recovery was higher for C2 compared to C1. Thus, oleic acid and double tartrate of sodium-potassium could be considered as the best reagent since the P2O5 recovery content corresponds to 29.27 and 31.25 % for C1 and C2, respectively. Compared to the oleic acid and pine oil reagent, the recoveries of P2O5 were 28.85 and 30.55 % for C1 and C2, respectively. However, when other reagents as (oleic acid  phosphoric acid) and (oleic acid + diesel fuel) were used, the recovered amount of P2O5 was found to be less important, 27.80 and 27.10 % for class C1, and 30.14 and 29.15 % for C2, respectively. Originality. During this study two main axes were discussed: the first one was the influence of flotation reagents on flotation of the first and second stages, the second one was to study the effect of grain size on the flotation yields. The flotation process has been shown to be effective both in terms of depressed phosphate elements in the phosphate concentrates and in gangue floated in the flotation tailings. It can be seen that the concentrate contents of around 32 % is achieved in P2O5 with superior recoveries of 99 %. Practical value. The results of analyses carried out on the flotation products showed, in most cases, that the streams are richer in phosphate elements (fluorapatite, carbonate hydroxylapatite, carbonate fluorapatite) and a low amount of carbonates (dolomite and calcite), unlike floating, mainly made up of dolomite with a small amount of phosphated elements.

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Section: Introductionmentioning

confidence: 99%

“…It is well known that the fatty acids are most widely used as collectors to separation apatite from dolomite by flotation [8,13,16]. However, the effects of different components of vegetable oil fatty acids have been examined on phosphate flotation [17].…”

Section: Introductionmentioning

confidence: 99%

Reverse flotation process in double stage on the Algerian phosphate ore treatment

Merzeg¹,

Bezzi²,

Bouzidi³

et al. 2023

Nauk. visn. nat. hirn. univ.

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“…After its discovery, more than 200 years ago [15], immediately faced the problem of separating one element from another, representing a great challenge for the industrial and scientific community. Several physical techniques including gravity [16][17][18][19], flotation [20][21][22][23], magnetic [24,25], and electrostatic [26][27][28] separation have been used during the last years for the beneficiation of REE. In a more global context and for a long time, China has accounted for more than 85% of the global rare-earth mining and production [14] and the 50% of reserves worldwide.…”

Section: Introductionmentioning

confidence: 99%

Identification of rare-earth minerals associated to K-feldspar: Capacsaya project in Peru

et al. 2021

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A recently discovered the rare-earth-rich site in Capacsaya, located at 123 km northwest of Cusco, at the south of Peru, contains significant quantities of light and heavy rare-earth elements such as neodymium, lanthanum, cerium, europium, and yttrium. This work reports the identification of rare-earth elements and their associated minerals using scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray diffraction analyses. Five (5) samples extracted from different locations at the Capacsaya site were characterized and identified K-feldspar as the mineral associated with the rare-earth elements in a representative sample with a high concentration of lanthanum and cerium. The results showed rare-earth elements contained within the mineral phase monazite, being cerium the dominant element in the phase (La, Ce, Nd)PO$$_4$$ 4 . Finally, through the electrostatic separation process we demonstrate that it was possible to achieve an efficient separation of the K-feldspar phase in the particle size range 75–150 $$\upmu$$ μ m.

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“…14 In the past few years, alkyl ether amine has been introduced as a collector with good collection performance for quartz. [15][16][17][18] However, the effects of low temperature decrease flotation recovery when using a traditional unimolecular surfactant as the collector, and require a high energy consumption caused by heating tons of slurry to room temperature during the winter months. This issue has even caused many magnetite ore dressing plants to stop production in the winter.…”

mentioning

confidence: 99%

“…14 In the past few years, alkyl ether amine has been introduced as a collector with good collection performance for quartz. 15–18…”

mentioning

confidence: 99%

Iron ore production using a new Gemini surfactant at 273 K

Huang

Shuai

et al. 2022

Chem. Commun.

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Towards the efficient flotation of monazite from silicate-rich tailings with fatty acids collectors using a lanthanum salt as a selective phosphate activator

Cited by 13 publications

References 63 publications

Reverse flotation process in double stage on the Algerian phosphate ore treatment

Reverse flotation process in double stage on the Algerian phosphate ore treatment

Identification of rare-earth minerals associated to K-feldspar: Capacsaya project in Peru

Iron ore production using a new Gemini surfactant at 273 K

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