Synthetic gypsum is a type of gypsum that is created as a by-product of various industrial processes. It is made by treating natural gypsum rock, or recovered gypsum from recycling, with chemical solutions to create a variety of products that can be used for different purposes.
One of the most common sources of synthetic gypsum is the flue gas desulfurization (FGD) process used in coal-fired power plants. In this process, sulfur dioxide emissions are removed from the flue gases by spraying them with a lime or limestone solution. The resulting by-product is a wet, calcium sulfate material that is then converted to gypsum through a process called "calcination". This synthetic gypsum can be used in a variety of applications, including in the production of drywall and cement.
Another source of synthetic gypsum is from the production of phosphoric acid, which is used as a fertilizer. The phosphoric acid is produced by treating rock phosphate with sulfuric acid. The by-product of this process is a wet, calcium sulfate material that can be converted to synthetic gypsum.
Synthetic gypsum is also being used as a soil amendment to improve the structure and fertility of soil. Synthetic gypsum is believed to be a good source of calcium and sulfur, both of which are essential nutrients for plants.
Synthetic gypsum is also used in the construction industry as a fire-resistant material. When it is exposed to high temperatures, synthetic gypsum forms a layer of insulation on the surface of the material, which can help to slow down the spread of fire.
In summary, synthetic gypsum is a type of gypsum that is created as a by-product of various industrial processes. It is made by treating natural gypsum rock or recovered gypsum with chemical solutions.
It has a wide range of applications including in construction, agriculture, and as a fire-resistant material. Synthetic gypsum is an environmental-friendly alternative to natural gypsum as it helps to reduce waste and pollution.
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