Category: Rare Earth Mining
Rare Earth Mining
Showing 33–48 of 83 results
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Hafnium is a lustrous, silvery, ductile metal. It restists corrosion due to formation of a tough, impenetrable oxide film on its surface. The metal is unaffected by alkalis and acids, except hydrofluoric acid. Hafnium is difficult to separate form its group 4 partner, zirconium, bacause the two elements have atoms that are the same size.
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Iridium is a hard, brittle, lustrous, dense, transition metal of the platinum family. It is silvery-white and it is notable for being the most corrosion resistant element known. It is unaffected by air, water and acids. Applications Nowadays demand for iridium comes mainly from the electronic industry, the automotive industry and from the chemical industry, …
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An ironstone (76) is a sedimentary rock that contains more than 15% iron, which may be present as variable proportions of iron-bearing minerals such as goethite, siderite, and berthierine. Sedimentary ironstones may be hard and calcareous and contain quartz grains, ooliths, pebbles, and a wide variety of macrofossils. The Frodingham Ironstone bed comprises a lenticular …
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• Angles • Angles & Sundry Cold Rolled Sections • Angles Equal • Angles Steel • Angles Steel Lipped • Bends Cold Rolled • Bright Mild Steel • Cast Iron • Channel Sections Pressed Steel • Channel Steel • Coil Slitting • Cold Formed Open Sections • Cold Formed Open Sections Top Hat • Cold …
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Lanthanum is a soft, malleable, ductile, silver-white metal. Lanthanum is naturally found in sediments.: it oxidizes rapidly in air and it reacts with water to form the hydroxide. The 1:1 salt lanthanum phosphate (LaPO4) has an extremely low solubility in water, Similarly, lanthanum carbonate (La2(CO3)3) also has a very low water solubility, 1.02 x 10-7 mol/L, calculated from the Ksp of 4 x 10-34 mol5/L5 at 25°C and I = 0 mol/dm3 reported by Martell & Smith (1974).
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Lithium is the first of the alkalis in the periodic table. In nature it’s found like a mixture of the isotopes Li6 and Li7. It’s the lightest solid metal, it’s soft, silvery-white, with a low melting point and reactive. Many of its physical and chemical properties are more similar to those of the alkaline earth …
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Mercury is a chemical element with the symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum from the Greek words, hydor and argyros. Symbol: Hg Atomic mass: 200,59 u Electron configuration: [Xe] 4f¹⁴5d¹⁰6s² Atomic number: 80 Boiling point: 356,7 °C Melting point: -38,83 °C Period: period 6
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The metal is silvery white, very hard transition metal, but is softer and more ductile than tungsten. Scheele discovered it in 1778. It was often confused with graphite and lead ore. It has a high elastic modulus, and only tungsten and tantalum, of the more readily available metals, have higher melting points. Molybdenum has one of the highest melting points of all pure elements. Molybdenum is attacked slowly by acids.
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Neodimium is a lustrous silvery-yellow metal. It is very reactive and qickly turnishes in air and the coated formed does not protect the metal from further oxidation, so it must be stored away from contact with air. It reacts slowly with cold water and rapidly with hot. Applications Neodymium is one of the rare chemicals, …
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Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile. Symbol: Ni Atomic mass: 58,6934 u Electron configuration: [Ar] 3d⁸4s² Atomic number: 28 Melting point: 1 455 °C Van der …
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Rare earth magnesium ferrosilicon alloy refers to an alloy prepared by adding calcium, magnesium and rare earth to ferrosilicon. It is also called a magnesium alloy nodulizer. It is added as a nodulizer in the production of nodular cast iron to change flake graphite into nodular graphite. It can significantly improve the strength of cast …
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