موقعك الحالي:صفحة رئيسية>المنتجات
2023year1month1day This paper focuses on the research progress of extracting lithium from spodumene, lepidolite, petalite, and zinnwaldite by acid, alkali, salt roasting, and chlorination
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2019year8month15day This contribution provides a detailed in-situ account of transformation reactions during calcination of a typical high-grade α-spodumene (α-LiAlSi 2 O 6) concentrate, a pre
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2024year9month30day The review focuses on the following techniques: acid methods, alkali methods, carbonate roasting/autoclaving methods, sulfuric acid roasting/autoclaving methods,
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2023year2month1day Spodumene is the key lithium-bearing mineral hosted by pegmatites. The present article comprehensively recapitulates the research investigations and plant practices
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2019year5month29day Spodumene is one of the most critical minerals nowadays, due to its high lithium content and high rate of extraction. Lithium is one of the most sought-after metals, due to the ever-growing demand for lithium-ion batteries
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2024year7month9day In this work, we report an alternative method to extract Li directly from α-spodumene, which is performed at lower temperatures and avoids the use of acids. It is shown that Li 2 CO 3 is formed with >90% yield at 750 °C by
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2024year3month12day Spodumene flotation stands as the most commonly used method to concentrate lithium minerals. However, it faces significant challenges related to low collector recoveries and similarity in the surface characteristics
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Spodumene is a cornerstone of the global lithium supply chain, which supports the lithium-ion battery industry. As a lithium-rich mineral, it offers a direct and potent source of lithium, which is essential for battery manufacturing.
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2024year2month4day In this paper, we report a process for lithium extraction from spodumene raw materials. We demonstrate that a promising approach for processing spodumene is sintering
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2019year8month15day Natural spodumene occurs as α-phase, the low-temperature, monoclinic polymorph of LiAlSi 2 O 6 that resists dissolution by most chemical agents (Rosales et al., 2014).In lithium refineries, the thermal treatment of α-spodumene at temperatures above 1050 °C (typically around 1080 °C) transforms it into the more reactive β-phase that affords ion
Read More2023year1month1day To reduce the energy consumption and cost of spodumene calcination and conversion, Kuang G et al. (2012) proposed the lithium extraction process of α-spodumene corroded by hydrofluoric acid at low temperature, and the generated Li 3 AlF 6 and AlF 3 were dissolved in sulfuric acid, which provided theoretical guidance for direct lithium extraction from
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2024year7month13day Spodumene (LiAlSi2O6) has gained attention due to its versatile applications, which include ionizing radiation dosimetry, observed in either monoclinic (α-spodumene) or tetragonal (β-spodumene) symmetries. β-spodumene has been produced by solid-state reactions and conventional sol–gel methods, which are challenging due to the need for high
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2020year6month5day Heat-treatment of spodumene concentrate at 1323 K (1050 °C) for 30 min in a rotary kiln yielded a successful decrepitation. Particle size decreased from 2 cm to less than 425 µm for 80% of the initial mass. X-ray analysis of both fractions did not reveal the presence of α-spodumene or γ-spodumene. The coarse fraction was ground to less than 425 µm with
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Inventeur et étymologie. Première description par le minéralogiste José Bonifácio de Andrada e Silva en 1800.. Dénomination empruntée au grec σποδυμενος, spodumenos (« couleur de cendre ») [3].. Topotype. Mine de fer d'Utö (île d'Utö au sud de Stockholm, commune de Haninge, Södermanland, Suède). Synonymie. Le spodumène a été décrit plusieurs fois sous des termes ...
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2024year5month20day However, the spodumene is also very important ore of lithium. Processing spodumene requires high temperatures (converting to β-spodumene), which is more demanding than processing lithium brines. On the other hand, processing spodumene is still way easier and cheaper than processing lithium rich micas like lepidolite or zinnwaldite.
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2024year4month5day Spodumen - Eigenschaften, Entstehung und Verwendung. englisch: spodumene französisch: spodumène. Spodumen Spodumen - Eine Pyroxenvarietät. Die Erstbeschreibung des Minerals Spodumen stammt aus der Feder des brasilianischen Naturwissenschaftlers José Bonifácio d´Andrada de Silva (1763 bis 1838).
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Spodumene was first described in 1800 for an occurrence in the type locality in Utö, Södermanland, Sweden.It was discovered by Brazilian naturalist Jose Bonifacio de Andrada e Silva.The name is derived from the Greek spodumenos (σποδούμενος), meaning "burnt to ashes", owing to the opaque ash-grey appearance of material refined for use in industry.
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2022year10month31day Ore preparations. Spodumene ore samples (− 15 mm) were obtained from the Bald Hill Mine Eastern Goldfields, Western Australia. Table 1 shows the mineralogy of the sample determined using XRD. As ...
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2023year2month1day However, γ-spodumene being metastable in nature transforms into β-spodumene at higher temperatures [27]. This phase transformation process from α- to γ -spodumene is reported to occur in the temperature range of 700–900 °C, followed by a transformation into β-spodumene between 900 and 950 °C, beyond which spodumene fuses
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リシア輝石（リシアきせき、spodumene、スポジュメン、リチア輝石 [1] ）とは、ペグマタイトから産出されるペグマタイト鉱物の一種（ケイ酸塩鉱物）であり、リチウムとアルミニウムを含む単斜輝石。
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2012year1month1day "Spodumene mineral is a source of lithium for lithium ion batteries. Thus, the production of a spodumene concentrate with an approximate grade of 6% Li2O is targeted. Traditionally, spodumene is concentrated by froth flotation using fatty acid as the collector. Amine collector can also be used to float mica ahead of spodumene as required or feldspar from the
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2022year1month1day Spodumene is the main mineral of lithium that occurs in pegmatites and is frequently associated with the minerals quartz, feldspar and mica.
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2024year3month12day Spodumene flotation stands as the most commonly used method to concentrate lithium minerals. However, it faces significant challenges related to low collector recoveries and similarity in the surface characteristics of the minerals, which make the effective separation of this valuable mineral difficult. For this reason, numerous researchers have
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PDF On Jan 1, 2022, Thamsanqa Ncube and others published Sustainable Treatment of Spodumene: Extraction of Lithium from Spodumene Through Roasting with Potassium Sulfate ...
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2019year6month14day Historique. Les premières descriptions des roches assignées à la Suite de Spodumène proviennent des travaux de Valiquette (1963, 1975) : une importante intrusion de pegmatite à spodumène avait été mise au jour entre le lac des Montagnes, à l’ouest, et le lac du Spodumène, à l’est. Des projets de fin d’études (Beland, 2011) et de maîtrise (Bynoe, 2014)
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spodumene concentrates after roasting and acid roasting operations. A concentrate with at least 6% Li2O (approximately 75% spodumene) is suitable for roasting. Roasting is performed at about 1050°C, during which spodumene will go through a phase transformation from α-spodumene to β-spodumene. The α-spodumene is virtually refractory to hot ...
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2024year7month1day Ocurrencia de Spodumene. El esdumen se encuentra en pegmatitas, aplitas y gneises graníticos ricos en litio. Los minerales relacionados son: cuarzo, albita, petalita, eucriptita, lepidolita y berilo. El material obvio se ha utilizado como piedra preciosa con sus variedades kunzita y hiddenita que han llamado la atención con su pleocroísmo robusto durante mucho
Read MoreSpodumene, as a naturally occurring compound source of lithium, is a critical raw material in the production of lithium-ion batteries. Lithium is pivotal to the proposed transition from fossil fuel to low carbon energy generation, with 71% of its use within lithium-ion batteries, although lithium is also used in ceramics (14%), lubricating greases (4%) and polymer production (2%) (USGS
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2020year2month18day Abstract The effects of shear strength on aggregation flotation processes for fine spodumene (particle size less than 19 μm) were investigated in this study. Sodium oleate was used as a surfactant and collector. The shear strength was controlled by varying the agitation speed of a self-made stirring apparatus. The aggregation process was studied by measuring
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الصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.
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