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Regarding to the molybdenum and tungsten mineral in Yantai, the grade of Mo in raw mineral was 0.13%, and that of WO3 was 0.063%. The main mineral in molybdenum was molybdenite, and main tungsten mineral was scheelite. According to the mineral’s particularity, the flow chat was adopted, in which molybdenum was selected first in flotation process; Coarse and concentrate molybdenum was grinded many times for the concentration; Scheelite was selected from molybdenum tailings by flotation.
Xinhai Mining Technology and Equipment Inc. provided mineral processing solution for the mine, with the principle of science, reasonability, less investment, higher efficiency, and achieving national’s related standards. Combined with practical cases, Xinhai provides EPC service including design and plant construction, equipment manufacture and installation, local training, and so on. The final products were molybdenum concentrate powder with grade of 47%, and tungsten concentrate powder with grade of 65%. This project’s implementation had a stimulating effect on a number of social areas, and also had a positive effect on society’s development.