Among them, (3) the sub-minerals of nonmetallic minerals are classified as: 1, elemental nonmetallic minerals; 2. Mineral nonmetallic minerals; 3. Gem nonmetallic minerals; 4. Non-metallic minerals of rocks; 5. Clay nonmetallic minerals
Under the classification of elemental nonmetallic minerals 1, there are seven kinds of minerals, such as sulfur, phosphorus and potassium, and potassium ore and potassium-bearing rock are secondary minerals of potassium ore.
Therefore, potassium salt belongs to non-metallic minerals, generally referring to soluble potassium salt. The component of potassium salt is KCL (potassium chloride), which is mainly used to manufacture industrial potassium compounds and potash fertilizers. 95% of potash products in the world are used as fertilizers, and 5% are used in industry.
Potassium fertilizer (potassium chloride), as an important fertilizer, is of extraordinary significance to China's grain output. However, the reality is that there is a serious shortage of potash resources in China. 20 10 the Ministry of land and resources identified potash fertilizer as one of the eight scarce minerals in China.