Mineral Wool Production from Hot-melt Slag
The slag in smelting industry has not been properly treated and disposed. The enterprises have to store a large amount of slag, this solution covers a large area and cause pollution to surface water, groundwater and soil, which not only causes serious pollution to the environment, but also causes a great waste of resources. At present, the comprehensive utilization of slag in China is mainly focused on the production of cement as ingredients, and the resource value of slag has not been maximized.
The technology of mineral wool production with hot-melt slag adopt advanced production technology and equipment of mineral wool, uses the hot-melt slag as the main raw material, and adjusts the melt composition to produce high-quality mineral wool products, which is more energy-saving and environmental friendly than the traditional production method, and makes great contribution to the energy conservation, emission reduction and circular economy of mineral wool industry and metallurgical industry.
Coking Desulfurization Brine Utilization
Wastewater from coke oven gas desulfurization in coking plant has high chemical content and high toxicity, which has been listed as hazardous waste by contry. Conventional wastewater treatment technology is unreliable to solve this problem, which has become the crux of affecting the normal production of coking enterprises.
The technology of extracting chemical from coking desulfuration brine adopts route of combining environmental protection technology and chemical production technology. After treatment, the waste water can be recycled without environmental pollution. The salt in the brine can be extracted and refined into high value-added sodium thiocyanate products, as well as other by-products such as ammonium sulfate, ammonia water and sulfur. This technology solves pollution problem of waste water and transforms As a high value-added product, it is a high-quality technology reflecting the characteristics of circular economy.
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