Distribution and Utilization of Phosphate Rock Resources
Date:2021-08-26 09:16:17
Author:admin
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In China, phosphate rock resources are relatively rich, and the proven resource reserves are second only to Morocco and the United States, ranking third in the world. The five provinces of Yunnan, Guizhou, Sichuan, Hubei and Hunan are my country's main phosphate rock resource storage areas, with reserves of 9.86 billion tons, accounting for 74.5% of the country's total reserves. Among them, Kaiyang in Guizhou, Kunyang in Yunnan, and Xiangyang in Hubei are called "Sanyang Kaitai". Among the "Sanyang", Kaiyang phosphate rock resources are of high quality and large in quantity.
Phosphate rock is an important chemical mineral raw material. It can be used to make phosphate fertilizer, and it can also be used to make yellow phosphorus, phosphoric acid, phosphide and other phosphates for medicine, food, matches, dyes, and phosphate rock. Sugar, ceramics, national defense and other industrial sectors. Among them, phosphate rock produces a kind of waste residue called "phosphogypsum" in the production process of producing phosphoric acid by wet method. At present, China's existing phosphogypsum reserves are about 600 million tons, which are newly added every year. About 80 million tons. Phosphogypsum is a reusable resource. It can be used to produce sulfuric acid and co-produce cement, ammonium sulfate and calcium carbonate, potassium sulfate and ammonium chloride, calcium sulfate whiskers, etc., and it can also be used as gypsum board. , Gypsum blocks, gypsum-based composite cementitious materials, etc., in agriculture, it is mainly used as field fertilizer and soil conditioner.
The R&D and application of phosphogypsum comprehensive utilization products are tilted towards the direction of large dosage, high added value, and multiple ways. The application of cement retarders, building gypsum-based cementing materials, and new building materials will be the main direction. Henan Zhengzhou Mining Machinery Co., Ltd. is a supplier of phosphogypsum overall disposal solutions. It has expert technical support in metallurgy, building materials, chemical industries and other industries. It has long-term cooperation with the School of Chemical Engineering of Zhengzhou University. It has a skilled process route and a professional mechanical design team. There is a pilot test production line to meet various test needs. The company is also a supplier of complete sets of equipment. It can do all the processes from design, construction, installation, and debugging. In the decades of continuous development of the company, it has been committed to environmental protection. Contributing to the cause, adhering to the concept of "morality in advance, benefiting others", and efficiently serve every customer.
