The tailings processing capacity of this project was 1500t/d, and the average tailing concentration was 28%....
The ore had a simple composition, primarily comprising fluorite, quartz and calcite. Major chemical components were CaF2 (28.30-87.49%, an average of 58.19%) and SiO2 (8.18-65.38%, particularly 25-38%, an average of 34.11%). The relationship between CaF2 and SiO2 was negative, which accounted for 92-95% of the total....
Major minerals were potassium feldspar and albite, which accounted for 60-80%. In white-flesh pink color, potassium feldspar occurred in the form of subhedral plate. Some crystals had cross-hatched twinning. The secondary mineral was quartz accounting for 10-30%, which was in milk white color and occurred in irregular and wormlike form. There was a minor amount of black mica, which occurred in the form of black flake and accounted for 1-5%. White mica occurred in the form of white flake and accounted for 1-5%. Magnetite and tourmaline occurred locally in black plate form....
The Vietnam 800t/d graphite mineral processing plant was an EPC+M+O project. The major mineral was graphite granulite, while the second one was graphite schist. The major beneficial mineral was medium flaky graphite which had a much better ability of beneficiation....
The ore consisted of iron, phosphorus and other metallic elements as well as loose igneous carbonatite weathering residue and hypergenesis-based crandallite and argillaceous hematite clay. The existence of huge slime caused difficulty in the separation and purification of apatite and magnetite. All minerals were inter-wrapped and associated so that liberalization was difficult. The isomorphism was dominant as titanium, iron, manganese, aluminum and magnesium lattices replaced each other. As a result, the ore composition was much complicated....
The raw ore was tungsten ore with a WO3 grade of about 7% which was ≤200mm in size and had medium hardness. The slime and water contents were both smaller than 6%. The grinding fineness was -1mm because tungsten was not liberalized in the fraction of over 1mm....
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