The molybdenum deposit mainly quartz, sericite, hornblende, feldspar, pyrite, arsenopyrite, fluorite, chlorite, molybdenite, a small amount of magnetite, limonite, apatite and the like. Metal ore minerals disseminated in a sparse structure, from micro-fine structure mainly shaped, with a ring configuration pyrite, arsenopyrite was fine columnar shape and fine pyrite spearhead edge-wrapping polycrystalline structure, and pyrite . The molybdenum ore is mainly distributed in the fluorite-silicaized quartz metamorphic rock mass. Due to the strong mineralization alteration, molybdenum mineralization is closely related to the fluorite and petrochemical. According to the relevant data, the main occurrence state of molybdenum is microcrystalline molybdenum ore, which is unfolded by monomer inhomogeneous dissemination. Molybdenum ore is mainly embedded in fine-grained quartz aggregates by micro-crystal wrapped or dispersed micro-particles. A small amount is embedded in pyrite in the same particle size. Molybdenum ore size variation range: 0.005-0.3mm, of which 0.01-0.074mm accounts for about 70-80%, and 0.074-0.3mm accounts for about 20-30%. This embedding property of molybdenite is an important cause of low grade and recovery of molybdenum concentrate. The ore is subjected to a closed-circuit flotation process of two coarse, two sweeps and two fines under the condition of grinding fineness - 200 mesh 90%, and the molybdenum concentrate grade is obtained by 12.64%, and the recovery rate is 62.11%. Compared with the same type of ore, the expected sorting effect is achieved. Due to the presence of molybdenite in the pyrite, pyrite can easily enter the molybdenum concentrate under the action of a small amount of xanthate, thereby reducing the grade of molybdenum concentrate. When using lime to inhibit pyrite, without adding xanthate, yellow The iron ore enters the tailings again, which leads to an increase in the grade of the tailings, which reduces the recovery rate of the molybdenum concentrate. It can be said that pyrite is also an important factor affecting the selection index. The ore contains 1.56% carbon, which is about 3 times the molybdenum grade. Molybdenum and carbon (graphite) are non-polar mineral oil plus non-polar - coal oil, or even just add a foaming agent can be suspended. There is no precedent for the separation of molybdenum and carbon by flotation in tests and production practices. This is another important factor affecting the grade of molybdenum concentrate. The ore contains gold at 0.36 g/t and has no recovery value. TPMS Sensor,TPMS SENSOR for BMW,Tire Pressure Monitoring System Sensor,Tire Valve Sensor for Car Ningbo Zonhom Automotive Co.,Ltd , https://www.nbzonhom-tpms.com
The purpose of the test is to provide a basis for the possibility of development and utilization of the deposit.
April 29, 2023