Most noble metal complex oxide ores, low grade ore, and often associated in the same deposits, a wide variety of valuable metals symbiotic composition, therefore, is a rare metal ores refractory to most of the well and had the following characteristics beneficiation :
1 The beneficiation process is complex, multi-stage and is a joint process of multiple mineral processing methods (for comprehensive utilization and recycling);
2 Frequently, the use of fatty acids and their soaps for flotation, the impact of water quality is greater.
Rare metals, usually referred to as metals that are less or less distributed in nature, are difficult to extract from raw materials and are relatively late in industrial preparation and application. However, it has a wide range of uses in modern industry. Rare metal minerals include lithium , antimony , bismuth , antimony , bismuth, antimony , zirconium , hafnium and other minerals. The commonality of this part of mineral resources is low abundance in the earth's crust, each with different physical and chemical properties, and no independent minerals exist. It is mostly symbiotic with strontium or in the crystal lattice of potassium minerals. In addition to the formation of vermiculite, it is more dispersed in zirconium minerals. Their distribution is also very scattered, and it is more difficult to extract from ore.
Rare metal mineral resources are widely used, especially in high-tech technologies such as aerospace, atomic energy, electronics, and defense industries. Lithium isotope 6Li is an indispensable raw material for the manufacture of hydrogen bombs. In nuclear reactors, lithium is used as a control rod coolant and a heat transfer medium. It is often used as a fuel for aircraft, rockets, and submarines. Metal ruthenium is used as a protective material and preparation for atomic energy reactors. ion source, a high-energy fuel additives; niobium, tantalum, for the manufacture of computer memory devices, superconducting magnet alloy power and the like.
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