At present, the treatment methods of phosphogypsum in our country mainly include: Acid-base neutralization and modification method, washing method, flotation method, screening method, Chen Huafa method and calcination method. The composition of phosphogypsum produced by each factory is different. In the actual application process, it is necessary to choose a combination of various processes according to the characteristics of phosphogypsum.
One of the most important uses of phosphogypsum is to produce sulfuric acid co-production cement: the technology of producing sulfuric acid co-production cement from phosphogypsum regenerates sulfur components into sulfuric acid, and other components generate cement clinker; Cement retarder: phosphogypsum can be used as cement retarder after single mixing or double mixing with dihydrate gypsum according to appropriate proportion. The effect of double mixing is better, and the cement performance produced by phosphogypsum, however, the mixing amount is lower than that of natural gypsum, which can reduce the production cost of cement; Production of phosphogypsum building materials: phosphogypsum can be made into phosphogypsum fiberboard by pressing with a small amount of cement, fiber reinforced materials, pulp and so on; Phosphogypsum, cement and sand can be made into high-strength gypsum bricks and so on.
Henan zhengkuang Machinery Co., Ltd. is a supplier of complete sets of phosphogypsum equipment, which 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 contributing to the environmental protection cause, adhering to the concept of "morality in advance, benefit in the future" and serving every customer efficiently.