The Alteration Mechanism of Copper-bearing Biotite and …
the XRf, XRD, polarizing microscopy and SeM-eDS were used to study the alteration mechanism of copper-bearing biotite and the leachable property of copper-bearing …
Extraction of Potassium from Biotite by Sr 2+ /K
The maximum potassium extraction rate is 98%. The biotite gradually transforms into vermiculite strontium mica to form strontium mica, and the basal (001) spacing expands from 1.001 nm to 1.517 nm ...
Extraction of copper from copper-bearing biotite by …
The results indicate that copper extraction from copper-bearing biotite by ultrasonic-assisted acid leaching is more effective than regular acid leaching. This study …
Preparation of industrial alumina from a biotite-rich …
After appropriate optimisation, an extraction efficiency of 98.6% Al (III) by 0.25 mol/L Cyanex®272 in kerosene diluent at 27 ± 2°C in the equilibrium pH range of 3.0–3.5 was achieved from an ...
Extraction of copper from copper-bearing biotite by …
The mechanism analysis indicates that an ultrasonic wave can cause the delamination of a copper-bearing biotite and increase its specific surface area from 0.55 to 1.67 m2·g−1. The results ...
Potassium Extraction from Biotite by
In this work, seven fungal species including Penicillium oxalicum, P. ochrochloron, P. simplicissimum, P. spinulosum, Aspergillus niger, A. fumigatus, and A. oryzae were investigated for potassium extraction from biotite (9.64% K2O, weight fraction). Experiments were carried out in a shaker (30 °C, 180 rpm) with biotite directly …
The Alteration Mechanism of Copper-bearing Biotite and …
In general, the biotite alteration is slightly earlier than the main mineralization, while Banks suggested that the enrichment of copper in intrusive rocks near Arizona porphyry copper deposit occurred during the process of biotite altering into chlorite 31. In this paper, it was discovered that there were two existence forms of biotite, …
Extraction of Potassium from Biotite by Lithium Ion …
potassium extraction effect without damaging the layered structure of biotite. The maximum K + of 92.3% can be extracted within 8h, and the hydrated lithium mica anode material is also prepared.
Leaching of rubidium from biotite ore by chlorination …
Before the experiment, the biotite and calcium chloride dihydrate were crushed to a particle size of < 150 µm, and the X-ray diffraction (XRD) pattern and particle size were shown in Fig. 1.SEM analysis of the raw ore and Elemental distribution of the raw ore was shown in Fig. 2.It could be found from Table 1, Fig. 1 and Fig. 2 that the biotite …
Full article: A stepwise change of frayed edge site content in biotite …
This method can extract a considerable amount of K + within a relatively short extracting time, even under laboratory conditions. The powdered 0.500 g of <20-μm biotite particles was weighed into a centrifuge tube and mixed with 3, 10, or 20 mL of the extracting solution (1.7 M NaCl + 0.01 M tetrasodium ethylenediamine tetraacetate).
Petrogenesis and oxidation state of biotite granite
Furthermore, the equigranular biotite granites plot in the fractionated granite field in the Zr + Nb + Ce + Y vs. FeO T /MgO diagram and the strongly differentiated granite field in the Ba-Sr-Rb diagram, whereas the porphyritic biotite granites fall into the unfractionated and normal granite field, respectively (Fig. 12), suggesting the ...
Extraction of Potassium from Biotite by Ca2+/K+ Ion …
The extraction rate of potassium and the structure change of biotite during the process of potassium exchange were determined by atomic absorption spectrophotometer and X-ray diffraction. The results showed that the layered silicate structure of biotite after ion exchange had not been destroyed, the base-plane spacing has expanded from 1.012 nm ...
Biotita Mica: Propriedades, Formação, Ocorrência e Usos …
Biotita. A biotita é a mais comum mica mineral e também conhecido como mica preta, um mineral de silicato do grupo da mica comum. Fórmula química aproximada K (Mg, Fe). Pode ser encontrado em enormes camadas de cristal pesando várias centenas de libras. É abundante em rochas metamórficas (tanto regional quanto de contato), …
Enhanced extraction of copper from cupriferous biotite by …
A large amount of severely weathered copper oxide ore is on the surface of Zambian copperbelt, in which the main cupriferous mineral is biotite.To treat this kind of copper oxide ore, thermal treatment and acid leaching is commonly utilized by many local plants, but the copper leaching efficiency is not high, resulting in the loss of copper …
Significance of OH, F and Cl content in biotite during
The hydroxyl (O(4)) site composition of biotite can in principle be used to retrieve information about fluid composition during fluid–rock interaction; however, due to low F and Cl content, as well as difficulties involved with analyzing the H 2 O content using in situ techniques, measuring these species in biotite has remained an elusive goal. …
Efficient Leaching of Rubidium from Biotite by Ion Exchange …
Both the rare metal in the mica and the mica minerals are valuable resources. However, in order to obtain the rare metal during the conventional extraction process, the mica crystal has to be destroyed, which results in a lot of solid waste being generated and inefficient utilization of mica minerals. In this work, rubidium-bearing biotite (Rb-BB) was …
Extraction of Potassium from Biotite by Sr 2+ /K …
Abstract: Soluble potassium has been successfully extracted from biotite by Sr2+/K+ ion exchange. The hydrated Sr-mica after ion exchange has better electrochemical …
extraction de biotite
Extraction of Potassium from Biotite by Sr 2+ /K … 1 Extraction of Potassium from Biotite by Sr2+/K+Exchange Method and Electrochemical Properties of Hydrated Sr-Mica Donghui Yao, Zhiliang Huang*, Bingbing Pan, Zhouqiao Zhao School of Materials and Engineering, Wuhan Institute of Technology, Wuhan 430205, China * hzl6455@126. …
Extraction of potassium from biotite by Ba2+/K+ ion
The maximum potassium extraction rate is 98%. The biotite gradually transforms into vermiculite strontium mica to form strontium mica, and the basal (001) spacing expands from 1.001 nm to 1.517 nm ...
Black Mica (Biotite) Meanings and Crystal Properties
Black Mica (Biotite) Meanings, Zodiacs, Planets, Elements, Colors, Chakras, and more. Science & Origin of Black MicaBlack Mica, also known as Biotite, is a phyllosilicate mineral within the mica family. It typically forms in scales or layers, resembling books or parallel sheets stacked together. This mineral is often found alongside Yellow Tourmaline and …
Biotite composition as a tracer of fluid evolution and
Porphyry Cu-Mo deposits are magmatic-hydrothermal deposits in which sulfide and oxide minerals precipitate from aqueous solutions. However, many questions remain about the composition and evolution of the magmatic-hydrothermal fluids responsible for mineralization. In response to this knowledge gap at the Qulong porphyry …
Alberto Patiño Douce | Department of Geology
This is a sanitized excerpt of a longer piece, that you can read here. Education. Research. Selected Publications. Events featuring Alberto Patiño Douce. My chief contribution to science, and the only one that I hope will survive me, is a book published by Cambridge University Press in 2011 with the title Thermodynamics of the Earth and Planets.
Efficient Leaching of Rubidium from Biotite by Ion Exchange …
In this work, rubidium-bearing biotite (Rb-BB) was adopted to efficiently extract Rb through ion exchange. The influences of experimental conditions on the Rb …
Extraction of copper from copper-bearing biotite by
The results indicate that copper extraction from copper-bearing biotite by ultrasonic-assisted acid leaching is more effective than regular acid leaching. This study proposes a promising method for recycling valuable metals from phyllosilicate minerals. Keywords: ultrasonic wave; copper extraction; delamination; copper-bearing biotite 1 ...
Extraction of rubidium from gold waste: Process optimization
Abstract. The extraction of rubidium from gold waste from the Mouteh processing plant in Iran by a three-step process (acid washing, followed by salt roasting and water leaching) was optimized. The acid washing step for removal of impurities was found to be optimal at 85 °C and 5 h, using 5 M nitric acid.
Extraction of potassium from biotite by Ba 2+ /K
Potassium has been extracted successfully from biotite by Ba 2+ /K + ion exchange. The potassium release rate increased along S-curve versus reaction time. The maximum of potassium release rate was about 96 %. Powder X-ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and transmission electron microscopy were used to …
Biotite as a petrogenetic discriminator: Chemical
Biotite is a widely used mineral in geochronological methods (e.g., 40 Ar/ 39 Ar, K/Ar, and K-Rb). However, biotite Ar-Ar and K-Ar dating methods are susceptible to metamorphic resetting due to Ar loss during open-system thermal events (e.g., Dickin, 2018); especially biotite with low blocking temperatures of ~400 °C for the Rb-Sr system ...
Clean and efficient process for the extraction of rubidium from
The application potential and extraction difficulties of Rb have necessitated the development of new methods for cleaner extraction of Rb from resources (Naidu et al., 2016a). Rb-bearing granitic rock, a multimineral aggregate composed of micas (muscovite and biotite), quartz, and K-feldspar is widely distributed in China.
Extraction of potassium from biotite by Ba2+/K+ ion …
Potassium has been extracted successfully from biotite by Ba2+/K+ ion exchange. The potassium release rate increased along S-curve versus reaction time. The maximum of potassium release rate was about 96 %. Powder X-ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and transmission electron …
Geochemistry of granitic melts produced during the …
This suggests that thermal buffering rather than melt extraction provided the rate-determining step in magma evolution. References Blundy, J. D., B. J. Wood, Crystal-chemical controls on the partitioning of Sr and Ba between plagioclase feldspar, silicate melts, and hydrothermal solutions, Geochim.
Method for extracting a mineral contained in biotite
Extraction des minéraux contenus dans les clivages de biotites Extraction of minerals contained in biotite cleavages. Le protocole d'extraction de minéral selon l'invention a ensuite été mis en œuvre. The mineral extraction protocol according to the invention was then implemented.
Diffusion-controlled biotite breakdown reaction textures at …
Biotite, a common mineral of granites, is a fundamental phase in crustal anatexis and differentiation of the continental crust (Brown and Fyfe 1970).It has been shown that the amount of water available in the deep continental crust is unlikely to account for the large volumes of granite emplaced in the middle and upper continental crust (e.g. …
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