At present, the main uses of desulfurization gypsum are: in the construction and building materials industry to produce building gypsum, stucco gypsum, gypsum blocks, paper gypsum board, gypsum hollow board, natural flat ground gypsum slurry, cement retarder, etc., agriculture is used in the production of fertilizer, saline soil improvement and other aspects.
In foreign countries, the industrial production and use of desulfurized gypsum has been more than 20 years. Germany is the most developed country in the research and development and application of flue gas desulfurization gypsum, and almost all German gypsum enterprises use desulfurization gypsum. Mainly used in the production of building products and cement retarder.
In agriculture, the improvement of saline-alkali land of desulfurized gypsum is still in the research stage. Experiments have shown that desulfurized gypsum can reduce pH, ESP and exchangeable Na+ in soil. Increase the yield of crops.