Mineralogy Articles
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Using a Ternary Diagram or Ternary Plot in Geochemistry?
A ternary diagram, also known as a ternary plot or triangle plot, is a three-variable graph used to represent the composition of a mixture or system composed of three components. These ternary diagrams are typically displayed as equilateral triangles, with each apex representing one of the three components. The interior of the triangle represents all possible combinations of these components, and ...
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Wire Wrapped Drum Magnet Benefits
Robust and with a high-intensity magnetic field: the Wire Wrapped Drum Magnet bridges the gap between standard Neodymium Rare Earth Drum Magnets and magnetically powerful Rare Earth Roll Magnetic ...
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Two Magnetic Disc Separators Process Coltan
A Nigerian mineral processor is installing two (2) Magnetic Disc Separators (MDS) to separate individual minerals in a Coltan plant. This latest export project reflects Bunting’s position as a recognised global leader for the design, manufacture, and supply of high-intensity magnetic separators for mineral processing. Technical product information: Magnetic Disc Separator ...
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Magnetic Properties of Ceramic Minerals
Magnetic minerals and fine iron have plagued ceramic producers since the first glazed pot was produced many thousands of years ago. Early ceramicists adopted elaborate and colourful patterns to cover any imperfections caused by such contamination. Over time, the demand for white or single coloured ceramic products increased, making disguising any imperfection increasingly ...
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Wet High Intensity Magnetic Separation Testing
The electromagnetic laboratory-scale Wet High Intensity Magnetic Separator (WHIMS) removes fine magnetics and para-magnetics from mineral slurries. Handling minerals in a slurry or suspension is preferable for many processors, especially when beneficiation involves wet processing. Additionally, a wet process often produces a better separation for very fine materials. To see video, please click ...
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Magnetic Properties of Minerals
Magnetic separation is a key stage in many mineral processing plants. Understanding the mineralogy of the deposit, and how different minerals behave in a magnetic field, is important when assessing the feasibility of using magnetic ...
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ElectroStatic Separation of Minerals
Electrostatic phenomenon dates back to 600 – 700 B.C. when people noticed static electric effects (attraction of hair) when amber was rubbed with fur. Indeed, the word ‘electrostatic’ comes from the ancient Greek word ‘electron’ meaning amber. Electrostatic beneficiation of dry granular plant-based food (i.e, organic) materials have been investigated for over 140 ...
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Use of Industrial Waste to Produce Ceramic Coatings on Metal
Industrial processes are activities that produce large amounts of wastes. Often these wastes are disposed in dam or landfills, occupying large areas and causing environmental damage such as the contamination of water and soil. According to the Circular Economy concept, waste should be minimized and reused as raw material in a new process. This work describes two residues, namely red mud (bauxite ...
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How To Use Soil Stabilization In Road Construction In 2019
Soil stabilization in road construction is a common practice in the construction of roads, whether they are highways, major or local roads, is conditioned by structured layers capable of carrying certain traffic loads. The very important layer is the foundation. If foundation deforms, the upper layers will soon be subject of deformation as well. Most roads’ erosion and sedimentation ...
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Axetris EMIRS200 black body IR Source built into MERTIS thermal infrared spectrometer - Case study
Infrared Source aboard BepiColombo to explore Mercury The BepiColombo Mission is a joint project between the European Space Agency (ESA) and Japan Aerospace Exploration Agency (JAXA). Axetris Infrared Sources are being used in the MIR spectrometer MERTIS that is on board the Mercury orbiter and was developed by German Aerospace Center (DLR) and University of Muenster. The BepiColombo Mission ...
By Axetris AG
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Built into the MERTIS IR Spectrometer as part of ESA’s BepiColombo Mission - Case study
Axetris Infrared Sources ready for take-off to Mercury The BepiColombo Mission is being jointly planned between the European Space Agency (ESA) and Japan Aerospace Exploration Agency (JAXA). Axetris Infrared Sources are being used in the mid-IR spectrometer MERTIS that will be on-board the Mercury Orbiter The BepiColombo Mission Mercury is the smallest and least explored planet in our solar ...
By Axetris AG
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Do you need to rapidly analyse Coltan?
The need for a rapid, simple analysis (carried out by non-laboratory staff) at mines makes a handheld X-ray analyser the ideal analytical technique for analysis of Coltan. The solution Hitachi High-Tech’s X-MET8000 Expert Geo provides fast and accurate on-site analysis of a wide variety of mining sample types, such as drill cores, rocks, cuttings and powders. Results are available in ...
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Confirming Natural Attenuation Processes at a Coastal Site - Case Study
Past waste disposal practices at a California coastal site resulted in a groundwater plume containing CVOCs (mainly chlorinated ethenes [CEs] and 1,1-dichloroethane) migrating offshore towards a marine harbor. CVOCs are present in the sediment porewater adjacent to the shoreline, but concentrations decreased significantly between 2000 and 2015, and NA in the marine sediments was suspected. To ...
By SiREM
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Major ions behaviour during evaporation of different saline type water of Western Mongolian lakes (geochemical modelling)
The main Mongolian water resources are lakes whose volume has significantly reduced in recent years as a consequence of global warming. This article presents research on three different types of nearly disposed Western Mongolian lakes with a wide range of brines’ composition: Shaazgai-Nuur (soda), Davsan-Nuur (chloride) and Tonhil-Nuur (sulfate). The aim of this study was to determine the ...
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Integrated treatment of acid mine drainage using cryptocrystalline magnesite and barium chloride
This study endeavours to report the efficiency of a hybrid approach in the treatment of acid mine drainage. Cryptocrystalline magnesite was used to pre-treat acid mine drainage and barium chloride was used to remove the residual sulphate through the formation of barium sulphate. Batch experimental approach was adopted and the documented optimum conditions for both cryptocrystalline magnesite ...
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The “nutrient pump:” Iron-poor sediments fuel low nitrogen-to- phosphorus ratios and cyanobacterial blooms in polymictic lakes
Abstract Several lines of evidence from a eutrophic lake show how polymixis enables phosphorus (P) released from anoxic, iron (Fe)-poor sediments to lower nitrogen-to-phosphorus (N : P) ratios and stimulate cyanobacterial blooms. Detailed sediment analyses revealed extensive formation of Fe sulfides, which suppressed porewater Fe levels and prevented sequestration of P in Fe minerals. ...
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Application of annealed red mud to Mn2+ ion adsorption from aqueous solution
Physicochemical characteristics and Mn2+ adsorption of annealed red mud were investigated in this study. The annealing temperature (105–900 °C) changed the mineralogical components and the point of zero charge of red mud. By comparison, annealed red mud at 700 °C (ARM700) had a better adsorption effect than other annealed samples, associated with the activated components of available Fe2O3, ...
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Extremely fast increase in the organic loading rate during the co-digestion of rapeseed oil and sewage sludge in a CSTR – characterization of granules formed due to CaO addition to maintain process stability
In a co-digestion system running with rapeseed oil and sewage sludge, an extremely fast increase in the organic loading rate was studied to develop a procedure to allow for flexible and demand-driven energy production. The over-acidification of the digestate was successfully prevented by calcium oxide dosage, which resulted in granule formation. Mineralogical analyses revealed that the ...
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Chemistry and mineralogy studies of PM
10atmospheric aerosols in the Gulf of Gabès, South TunisiaThis study provides a comprehensive report on mass concentrations, chemical composition and mineralogy characterisations of PM10 atmospheric aerosols in the Gulf of Gabès, in South Tunisia. Data were collected at 18 locations (sample points in urban zones with industrial influence). Principally, they were located near the industrial complex. At each sample point, PM10 was measured, with a mobile ...
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Sampling guidelines for handheld Raman measurements; what you need to know
In recent years. Raman spectroscopy has seen increased adoption as the technique of choice for the rapid identification of materials; especially for raw material identification in the pharmaceutical industry, identification of controlled substances and explosives for security applications, polymer material identification for packaging and plastics recycling, and mineral and gemstone ...
By B&W Tek
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