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Convenient processing of low-grade copper oxide ores
Convenient processing of low-grade copper oxide ores 1.Copper oxide ores are mainly distributed in South America, North America
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How to efficiently separate low-grade iron ore?
low-grade iron oreLow-grade iron ore is a resource-rich but low-grade ore, and its effective separation is crucial to improving the utilization value of the ore. This article mainly introduces the beneficiation methods and processes of low-grade iron ore, including physical beneficiation, chemical beneficiation and biological beneficiation, to reveal the scientific principles and operating techniques behind low-grade iron ore beneficiation.
一. Physical beneficiation
1. Particle size classification: Through processes such as coarse crushing and fine crushing, low-grade iron ore is divided into different particle size levels to provide basic conditions for subsequent beneficiation processes.
2. Density separation: Utilize the density difference between low-grade iron ore and associated minerals, and use physical methods such as heavy media separation and centrifugal separation to achieve effective separation of ores and impurities.
3. Magnetic separation: Since iron ore has certain magnetism to the magnetic field, magnetic separation can be achieved by utilizing the magnetic differences between the ore and non-magnetic impurities through equipment such as magnetic separators.
二. Chemical beneficiation
1. Acid leaching: Acidic leach solution is used to leach low-grade iron ore to dissolve the valuable metals in the iron ore to improve the grade.
2. Alkali leaching: Leaching iron ore through alkaline solution can dissolve certain impurities, thereby improving the grade of iron ore.
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