The grinding and grading stage of lithium ore is to ensure that lithium minerals and gangue minerals are fully free. Therefore, the extraction of lithium ore is inseparable from ore grinding, and the commonly used equipment for lithium ore grinding is a ball mill.
Magnetite is recovered by weak magnetic separation, ilmenite is recovered by gravity separation, and ilmenite concentrate is recovered by flotation to remove cobalt and nickel.
The current common quartz ore beneficiation process is to remove mineral impurities in quartz ore by scrubbing, magnetic separation, chute gravity separation, flotation, pickling or a combination of several methods to obtain particle size and impurities.
Collophosite is a kind of phosphate mineral, often cemented together with fine particles such as dolomite carbonate, siliceous matter, and argillaceous minerals. The content of silicon and magnesium is high, and it is difficult to sort. At present, the common flotation methods are mainly forward flotation, single reverse flotation, forward-reverse flotation, reverse-positive flotation and double reverse flotation processes.
Washed kaolin has the characteristics of strong hiding power, high whiteness and uniform particle size distribution. It is widely used in the paper industry and can improve the printability, ink absorption and smoothness of paper.
Nickel ore is mainly divided into copper-nickel sulfide ore and nickel oxide ore. The beneficiation method used by Xinhai to deal with copper-nickel sulfide ore is mainly flotation, while magnetic separation and gravity separation are usually auxiliary beneficiation methods.
The flotation method is widely used in lithium ore, and the key point in flotation operation is reflected in the selection of flotation reagents. The commonly used spodumene is mainly collectors and regulators.
The quality control of quartz sand for photovoltaic glass is mainly achieved through the selection and purification of quartz sand. The commonly used methods of beneficiation and purification of quartz sand are divided into physical methods and chemical methods.
Magnetite is mostly granular aggregates with strong magnetism and wide distribution. According to the different types of iron-containing minerals, magnetite can be divided into single magnetite and mixed ore.
As a lithium-containing ore with abundant reserves, lepidolite can alleviate the urgent demand for lithium to a certain extent. Several methods for extracting lithium from lepidolite have been developed, such as chloride roasting, sulfate roasting, limestone roasting, and sulfuric acid roasting.
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