Chemical gypsum processing...
By-product of industrial chemicals, also known as gypsum plaster, is the industrial production generated by the chemical reaction of sulfur in calcium (with zero to two crystal water) as the main component of the by-products or waste residue. Chemical fertilizers and phosphorus compound fertilizer production is a by-product gypsum industry have a major sectors: coal-fired boiler flue gas limestone / lime wet FGD; fluorite with sulfuric acid decomposition of hydrogen fluoride system; the rule of law fermentation citric acid produced by-product industry Gypsum.
Industrial-product gypsum is a very good renewable resources, comprehensive utilization of industrial by-product gypsum, and help protect the environment while saving energy and resources in line with our strategy of sustainable development.
Phosphate rock with sulfuric acid and phosphoric acid preparation generated when the wet calcium sulfate dihydrate crystal is phosphogypsum.
Gypsum Gypsum, also known as smoke, sulfur or gypsum FGD gypsum, is the content of fuels (coal, oil, etc.) resulting from the combustion flue gas desulphurization for purification and handling of industrial by-product to be cast. Defined as follows: Gypsum from flue gas desulphurization industry, small particles, high-grade wet calcium sulfate dihydrate crystal.
Phosphogypsum, the quality of Gypsum
In general, chemical gypsum as a plaster, the main component of natural and gypsum, are calcium sulfate dihydrate (CaSO4 2H20). Its physical, chemical and natural characteristics of the common law of gypsum, after conversion can be the same after five of seven and shape variations, gypsum and natural gypsum after calcination after the plaster powder and gypsum products in the dynamics of hydration, Condensation characteristics, physical properties quite.
Gypsum typical chemical processing technology program introduced
Rotary, the production of calcined boiling furnace. Chemical gypsum can be kiln-drying, the dryer more suitable for small particles of gypsum powder chemical, processing power, low energy consumption. Chemical gypsum more than 10% moisture content, drying after the water requirements of less than 2%. After the dry chemical gypsum directly into the boiling furnace for calcined calcined. This is natural and calcined gypsum phase, but omit broken jaw, broken-back, grinding processes, such as collecting and equipment, the process is relatively simple, low cost will be calcined. On the whole, the more natural gypsum building competitive advantages.