Insights into post-magmatic metasomatism and Li circulation in granitic systems from phosphate minerals of the Nanping No. 31 pegmatite (SE China)

Rao, Congjun; Wang, Rucheng; Yang, Yi; Hatert, Frédéric; Xia, Qunke; Yue, Xuege; Wang, Wumengyu

doi:10.1016/j.oregeorev.2017.08.017

Cited by 12 publications

(4 citation statements)

References 34 publications

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“…This paragenesis exemplifies a sequence of chemical reactions that occur during cooling, such as leaching of elements ( e.g ., Li and F), hydration, oxidation, and other cation exchanges ( e.g ., Na, Ca, Fe, Mn, and Ba). [ 3,4,15,24,56,79 ]…”

Section: Discussionmentioning

confidence: 99%

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High spatial resolution Raman mapping of complex mineral assemblages: Application on phosphate mineral sequences in pegmatites

Araujo

Hulsbosch

Muchez

2020

J Raman Spectroscopy

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Phosphates are a group of complex minerals widespread on Earth that can crystallize in several environments. Changes in environmental conditions during crystallization are reflected in the formation of a sequence of phosphate minerals, termed paragenesis. Accordingly, analyses of textural and chemical properties of complex mineral assemblages are essential to reconstruct the history of rocks and solid materials. Raman mapping can detect those mineralogical changes in complex assemblages with high spatial resolution, successfully determining the paragenetic sequence. Specifically, Raman spectroscopy is more advantageous than conventional methods because it requires little sample preparation, it is nondestructive, and it is capable of identifying hydrated minerals and phases composed of light elements (e.g., H and Li). In this study, the parageneses of two phosphatic assemblages from the Buranga pegmatite, a P–Li–Nb–Ta‐rich magmatic rock, are reported in detail. The first case shows the replacement of primary F‐rich montebrasite [LiAl(PO4)(OH,F)] by secondary F‐poor montebrasite [LiAl(PO4)OH]. Mapping of the OH‐stretching peak position and width identifies the mineral phases, illustrates their spatial relations, and allows to estimate the F content distribution. The second case investigates a sequence of phosphate minerals in a complex assemblage (trolleite + rosemaryite ➔ lazulite–scorzalite ➔ samuelsonite ➔ wardite). The application of multivariate analysis methods to characterize complex assemblages is assessed, and the classical least squares method is identified as the best suited for this setting. An analysis of Raman images shows that Buranga samples experienced a progressive hydration process during cooling, followed by fluid‐assisted mineral reactions with remobilization of elements, such as Ca and Na.

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Section: Discussionmentioning

confidence: 99%

“…Therefore, phosphate minerals are commonly used as indicator minerals in petrological studies as they are proxies for the pressure, temperature, and compositional evolution of the magmatic host rock. [ 13–18 ]…”

Section: Introductionmentioning

confidence: 99%

High spatial resolution Raman mapping of complex mineral assemblages: Application on phosphate mineral sequences in pegmatites

Araujo

Hulsbosch

Muchez

2020

J Raman Spectroscopy

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“…Thermogravimetric analysis data of FA and HA were indicates that HA nano-powder witnessed three levels of losing weight. The first stage which was belong to the evaporation of absorbed water in the nano-powders, was about 200 °C, the second level was from 600 °C to 800 °C belongs to the release of hydroxyl groups of the HA crystals, and the final third level which is not tangible above 1000 °C was belong to the major decomposition of the HA [29]. Consequently the huge weight loss that belongs to whole OH‾ groups, in contrast by fluoride substitution thermal stability of the HA structure was considerably increased and the decomposition of the HA structure effectively was controlled and restrained.…”

Section: Identification Of Thermal Stability Of the Synthesized Nanoparticles By Tgamentioning

confidence: 99%

Green synthesis of Sodium alginate mediated Fluorapatite Nanoparticle via Sol-Gel method

Kia

Ahmad

Shameli

2021

JRNN

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Fluorapatite (FA) can be used as a bioactive substance in the body, especially the teeth implants. The FA nanoparticle was synthesized by adding the fluorine to the structure of HA using sol–gel method and the heat treatment of 700 °C. Being low costs, eco-friendly and safer features are obvious advantages of the green synthesis of FA nanoparticles by using bio stabilizer of sodium alginate. Calcium nitrate tetrahydrate, diammonium phosphate, ammonium fluoride were used as precursors of Ca, P and F respectively with the ratio of 1:67 Ca/P. The presence of crystal structure of HA and FA investigated by the results of XRD which confirmed the substitution of hydroxyl groups with the fluorine in the crystal structure of apatite. FTIR obtained that fluorine was substituted by hydroxyl groups in the structure of fluoridated hydroxyapatite by disappearing the hydroxyl groups at 3600 cm-1 in the FA. TGA investigated the thermal stability of the nanoparticles that showed the discrepancy of weight loss for HA and FA between 600?C to 800?C. By using TEM, average sizes of 35 and 49 nm were determined for HA and FA respectively. FESEM results confirmed the shapes and distribution of particles of HA and FA in that, round like for the former and rode like for the later. The overall performance of utilizing sodium alginate (SA) as a bio-stabilizer is to obtain better precipitate which leads to having better crystallinity and smaller particle size and thermal stability remarkably improved.

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“…Although the abundance is different, the reserves are abundant, the grade is high, and it has a high mining and utilization value . Furthermore, it has been found that Yichun, Jiangxi and Songpan, Sichuan also have occurrences of deposits associated with spodumene and montebrasite . The Cambrian shale and limestone in the eastern Argemela area of the Panasqueira tungsten mine in Portugal contain abundant lithium deposits. − The estimated reserves of the shallowest part of the deposit are 20.1 million tons, and the main lithium minerals are montebrasite and lepidolite .…”

Section: Introductionmentioning

confidence: 99%

A Sustainable Process for Efficient Extraction of Lithium, Aluminum, and Phosphorus from Montebrasite

Hu,

Ma,

et al. 2024

ACS Sustainable Chem. Eng.

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In this paper, the CaSO 4 and CaO mixed roasting process was used to selectively recover Li, P and Al from montebrasite ore, in order to solve the difficult separation of P and Al in sulfuric acid roasting process. First, the theoretical feasibility of the roasting process was verified by thermodynamic analysis of the reaction materials. Second, systematic experiments were conducted on the main conditions of the roasting process to determine the optimal roasting parameters, which are roasting temperature of 820 °C, roasting time of 60 min, and theoretical amounts of CaSO 4 and CaO. The water leaching method was adopted to extract Li from the roasting slag with a extraction rate of 99.3%, while the extraction rates of P and Al were both less than 0.02%, achieving efficient separation of Li. After impurity removal, Li 2 CO 3 with a purity of 99.6% was prepared by carbonate precipitation and characterized by XRD and SEM. Third, 99.2% of P was extracted from the water leaching residue by leaching with the mixture of sulfuric acid and phosphoric acid, and crude phosphoric acid was prepared. In this process, the extraction rate of Al was only 0.41%. Fourth, 99.3% of the Al was extracted by a sulfuric acid activation and water leaching processes, and anhydrous aluminum sulfate was prepared by evaporation and crystallization. Finally, the tailings obtained were CaSO 4 . The technology proposed in this paper achieved the selective recovery and efficient separation of Li, P, and Al from montebrasite ore and also realized the recycling of CaSO 4 . It is an efficient, clean, and sustainable treatment process for montebrasite ore.

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Insights into post-magmatic metasomatism and Li circulation in granitic systems from phosphate minerals of the Nanping No. 31 pegmatite (SE China)

Cited by 12 publications

References 34 publications

High spatial resolution Raman mapping of complex mineral assemblages: Application on phosphate mineral sequences in pegmatites

High spatial resolution Raman mapping of complex mineral assemblages: Application on phosphate mineral sequences in pegmatites

Green synthesis of Sodium alginate mediated Fluorapatite Nanoparticle via Sol-Gel method

A Sustainable Process for Efficient Extraction of Lithium, Aluminum, and Phosphorus from Montebrasite

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