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[Chemical Knowledge]：Properties and Uses of Phosphate Rock

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The nature and use
of phosphate rock in the field of chemical production raw materials
phosphate rock is an important non-metallic mineral, the main component is calcium phosphate [Ca3(PO4)2], containing varying degrees of iron, aluminum, magnesium and other impurities. Phosphate rock is mainly used in the production of phosphate fertilizer and phosphate chemical products in industry, and is an important raw material for agriculture and chemical industry.

1. the nature of phosphate rock

1. physical properties: phosphate rock is usually light gray, brown or green, with glass luster or earthy luster. The hardness of phosphate rock is generally between 3 and 4, and the proportion is between 2.9 and 3.2.
2. Chemical properties: The main component of phosphate rock is calcium phosphate, and the mass fraction of phosphorus is generally between 18% and 30%. The impurity elements in phosphate rock mainly include iron, aluminum, magnesium, etc. The existence of these impurity elements will affect the smelting process and product quality of phosphate rock.

2. the use of phosphate rock

1 production of phosphate fertilizer: phosphate rock is the main raw material for the production of phosphate fertilizer, phosphate fertilizer is one of the three nutrients necessary for plant growth, to improve the yield and quality of crops plays an important role.
2. Production of phosphorus chemical products: phosphate rock can also be used to produce various phosphorus chemical products, such as phosphoric acid, diammonium phosphate, calcium hydrogen phosphate, etc. These products are widely used in food, medicine, metallurgy, electronics and other fields.

3. phosphate ore processing technology

phosphate ore processing technology mainly includes crushing, grinding, flotation, drying and other steps. Among them, flotation is the key technology of phosphate ore processing. By adding flotation reagents to the pulp, the calcium phosphate minerals and impurity minerals are separated, so as to obtain high quality phosphorus concentrate.

4. phosphate rock market prospects

With the growth of the global population and the development of agricultural production, the demand for phosphate fertilizer will continue to increase. At the same time, with the progress of science and technology, the application field of phosphorus chemical products is also expanding, and the demand for phosphate rock will further increase. Therefore, the market prospect of phosphate rock is broad.

In short, phosphate rock, as an important raw material for chemical production, has a wide range of applications in agriculture and chemical industry. In the future, with the continuous progress of science and technology and the continuous expansion of application fields, the market demand for phosphate rock will further increase, and its development prospects will be broad.

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