Automated mineralogy: analysis of REE samples using micro-XRF

2019 ◽  
Vol 128 (2) ◽  
pp. 54-55
Author(s):  
A. H. Menzies ◽  
G. Gloy ◽  
S. Scheller ◽  
E. Álvarez ◽  
R. Tagle
Keyword(s):  
Automated Mineralogy ◽  
Mineralogy Analysis

Understanding phosphorus phases in sewage sludge ashes: A wet-process investigation coupled with automated mineralogy analysis

2016 ◽  
Vol 99 ◽  
pp. 30-39 ◽  
Author(s):  
Valentin G. Greb ◽  
Andrea Guhl ◽  
Harald Weigand ◽  
Bernhard Schulz ◽  
Martin Bertau
Keyword(s):  
Sewage Sludge ◽  
Wet Process ◽  
Automated Mineralogy ◽  
Mineralogy Analysis

scholarly journals 3D Ore Characterization as a Paradigm Shift for Process Design and Simulation in Mineral Processing

2021 ◽  
Author(s):  
Pratama Istiadi Guntoro ◽  
Yousef Ghorbani ◽  
Jan Rosenkranz
Keyword(s):  
Process Design ◽  
Paradigm Shift ◽  
Mineral Processing ◽  
Analysis Tool ◽  
Micro Computed Tomography ◽  
X Ray ◽  
Automated Mineralogy ◽  
Process Mineralogy ◽  
The Common ◽  
Ore Characterization

AbstractCurrent advances and developments in automated mineralogy have made it a crucial key technology in the field of process mineralogy, allowing better understanding and connection between mineralogy and the beneficiation process. The latest developments in X‑ray micro-computed tomography (µCT) have shown a great potential to let it become the next-generation automated mineralogy technique. µCT’s main benefit lies in its capability to allow 3D monitoring of the internal structure of the ore sample at resolutions down to a few hundred nanometers, thus excluding the common stereological error in conventional 2D analysis. Driven by the technological and computational progress, µCT is constantly developing as an analysis tool and successively it will become an essential technique in the field of process mineralogy. This study aims to assess the potential application of µCT systems, for 3D ore characterization through relevant case studies. The opportunities and platforms that µCT 3D ore characterization provides for process design and simulation in mineral processing are presented.

scholarly journals Automated mineralogy as a novel approach for the compositional and textural characterization of spent lithium-ion batteries

2021 ◽  
Vol 169 ◽  
pp. 106924
Author(s):  
Anna Vanderbruggen ◽  
Eligiusz Gugala ◽  
Rosie Blannin ◽  
Kai Bachmann ◽  
Rodrigo Serna-Guerrero ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Novel Approach ◽  
Textural Characterization ◽  
Automated Mineralogy

scholarly journals Low temperature alteration of magmatic Ni-Cu-PGE sulfides as a source for hydrothermal Ni and PGE ores: A quantitative approach using automated mineralogy

2017 ◽  
Vol 91 ◽  
pp. 718-740 ◽  
Author(s):  
David A. Holwell ◽  
Zeinab Adeyemi ◽  
Laura A. Ward ◽  
Daniel J. Smith ◽  
Shaun D. Graham ◽  
...  
Keyword(s):  
Low Temperature ◽  
Quantitative Approach ◽  
Automated Mineralogy

Towards a Statistical Treatment of Images Acquired by Automated Mineralogy

2013 ◽  
pp. 45-48
Author(s):  
Sandra Birtel ◽  
Raimon Tolosana Delgado ◽  
Stephan Matos Camacho ◽  
Jens Gutzmer ◽  
K. Gerald van den Boogaart
Keyword(s):  
Statistical Treatment ◽  
Automated Mineralogy

scholarly journals Characterization of glacial silt and clay using automated mineralogy

2019 ◽  
Vol 60 (80) ◽  
pp. 49-65
Author(s):  
Jeff W. Crompton ◽  
Gwenn E. Flowers ◽  
Brendan Dyck
Keyword(s):  
Grain Size ◽  
Size Composition ◽  
Rock Properties ◽  
Fine Grained ◽  
Rock Fragments ◽  
Grain Sizes ◽  
Automated Mineralogy ◽  
Log Normal ◽  
Discrete Populations

AbstractGlacial erosion produces vast quantities of fine-grained sediment that has a far-reaching impact on Earth surface processes. To gain a better understanding of the production of glacial silt and clay, we use automated mineralogy to quantify the microstructure and mineralogy of rock and sediment samples from 20 basins in the St. Elias Mountains, Yukon, Canada. Sediments were collected from proglacial streams, while rock samples were collected from ice marginal outcrops and fragmented using electrical pulse disaggregation. For both rock fragments and sediments, we observe a log-normal distribution of grain sizes and a sub-micrometer terminal grain size. We find that the abrasion of silt and clay results in both rounding and the exploitation of through-going fractures. The abundance of inter- versus intragranular fractures depends on mineralogy and size. Unlike the relatively larger grains, where crushing and abrasion are thought to exploit and produce discrete populations of grain sizes, the comminution of fines leads to a grain size, composition and rounding that is continuously distributed across size, and highly dependent on source-rock properties.

scholarly journals Improving the Quality of Ferruginous Chromite Concentrates Via Physical Separation Methods

Minerals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 667 ◽  
Author(s):  
Sunil Tripathy ◽  
Y Murthy ◽  
Veerendra Singh ◽  
Saeed Farrokhpay ◽  
Lev Filippov
Keyword(s):  
Magnetic Separation ◽  
Chromium Content ◽  
Detailed Characterization ◽  
Physical Separation ◽  
Chromite Ore ◽  
Chromite Concentrate ◽  
Automated Mineralogy ◽  
Characterization Studies

The low chromium-to-iron ratio of chromite ores is an important issue in some chromite deposits. The value of the chromite ore is indeed dictated in the market by its iron, as well as its chromium content. In the present study, a chromite concentrate was reprocessed by gravity (spiral concentrator) and magnetic separation to enhance the chromium-to-iron ratio. Also, detailed characterization studies including automated mineralogy were carried out to better understand the nature of the samples. Enhancing the chromium-to-iron ratio was achieved by using advanced spiral separators which will be discussed in this paper.

scholarly journals Liberation Characteristics of Ta–Sn Ores from Penouta, NW Spain

Minerals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 509
Author(s):  
Pura Alfonso ◽  
Sarbast Ahmad Hamid ◽  
Hernan Anticoi ◽  
Maite Garcia-Valles ◽  
Josep Oliva ◽  
...  
Keyword(s):  
White Mica ◽  
Low Grade ◽  
Economic Interest ◽  
X Ray Diffraction ◽  
Nw Spain ◽  
X Ray ◽  
Mineral Associations ◽  
Ore Minerals ◽  
Automated Mineralogy ◽  
Scanning Electron

The strategic importance of tantalum and its scarcity in Europe makes its recovery from low grade deposits and tailings interesting. In Penouta, the contents of Ta and Sn in old tailings from an Sn mine are of economic interest. Due to the relatively low grade of Ta of around 100 ppm, a detailed study of the mineralogy and liberation conditions is necessary. In this study, the mineralogy and the liberation characteristics of Sn and Ta ores of the Penouta tailings were investigated and compared with the current leucogranite outcropping ores. The characterization was conducted through X-ray diffraction, scanning electron microscopy, and electron microprobe. In addition, automated mineralogy techniques were used to determine the mineral associations and liberation characteristics of ore minerals. The grade of the leucogranite outcropping was found to be about 80 ppm for Ta and 400 ppm for Sn, and in the tailings used for the liberation study, the concentrations of Ta and Sn were about 100 ppm Ta and 500 ppm Sn, respectively. In both, the leucogranite outcropping and tailings, the major minerals found were quartz, albite, K-feldspar, and white mica. Ore minerals identified were columbite-group minerals (CGM), microlite, and cassiterite. The majority of CGM examined were associated with cassiterite, quartz, and muscovite particle compositions and cassiterite was mainly associated with CGM, quartz, and muscovite. The liberation size was 180 µm for CGM.

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