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A platform for research: civil engineering, architecture and urbanism
Method for preparing desulfurized gypsum from molybdenum roasting flue gas
The invention relates to a method for preparing desulfurized gypsum from molybdenum roasting flue gas, which comprises the following steps: roasting flue gas is desulfurized through dust collection, washing and neutralization reaction of an absorption tower, and then passes through a demisting tower and an electric dust collector, so that the finally discharged flue gas meets the emission standard; the desulfurization solution in the absorption tower is aerated and oxidized to generate a calcium sulfate solution, and then the calcium sulfate solution is subjected to filter pressing to obtain desulfurized gypsum, so that the whole process is simple and convenient to operate, desulfurization products can be recycled, and no solid waste is generated.
本发明涉及一种钼焙烧烟气制备脱硫石膏的方法，焙烧的烟气经过收尘、洗涤、吸收塔的中和反应进行脱硫、再经过除雾塔和电收尘器，使得最终排放的烟气符合排放标准；吸收塔中的脱硫溶液经过曝气氧化生成硫酸钙溶液，再经过压滤后得到脱硫石膏，整个工艺操作简单便捷，脱硫产物能够再利用，且没有产生固体废物。
Method for preparing desulfurized gypsum from molybdenum roasting flue gas
The invention relates to a method for preparing desulfurized gypsum from molybdenum roasting flue gas, which comprises the following steps: roasting flue gas is desulfurized through dust collection, washing and neutralization reaction of an absorption tower, and then passes through a demisting tower and an electric dust collector, so that the finally discharged flue gas meets the emission standard; the desulfurization solution in the absorption tower is aerated and oxidized to generate a calcium sulfate solution, and then the calcium sulfate solution is subjected to filter pressing to obtain desulfurized gypsum, so that the whole process is simple and convenient to operate, desulfurization products can be recycled, and no solid waste is generated.
本发明涉及一种钼焙烧烟气制备脱硫石膏的方法，焙烧的烟气经过收尘、洗涤、吸收塔的中和反应进行脱硫、再经过除雾塔和电收尘器，使得最终排放的烟气符合排放标准；吸收塔中的脱硫溶液经过曝气氧化生成硫酸钙溶液，再经过压滤后得到脱硫石膏，整个工艺操作简单便捷，脱硫产物能够再利用，且没有产生固体废物。
Method for preparing desulfurized gypsum from molybdenum roasting flue gas
一种钼焙烧烟气制备脱硫石膏的方法
ZHAO ZANFANG (author) / DING DAFU (author) / ZHANG SHUAI (author)
2023-11-10
Patent
Electronic Resource
Chinese
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