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Method for preparing roadbed stone and co-producing sulfuric acid by coupling desulfurization and denitrification ash with fly ash
The invention discloses a method for preparing roadbed stone and co-producing sulfuric acid by coupling desulfurization and denitrification ash with fly ash, and belongs to the field of inorganic non-metallic materials, wherein the raw materials mainly comprise desulfurization and denitrification ash, fly ash, graphite and hydrogen peroxide. According to the invention, by changing the ratio of thedesulfurization ash to the fly ash, adding a proper amount of graphite as a lubricant and utilizing a medium-temperature reaction, the roadbed stone with high strength and good stability and sulfuricacid with a certain concentration are finally prepared; according to the method, a large amount of two industrial solid wastes of desulfurization and denitrification ash and fly ash with characteristics of huge stockpiling amount and difficult treatment are utilized while sulfuric acid with a certain concentration is produced; the preparation process is simple, the operation method is simple, thepreparation period is short and the cost is low; the prepared roadbed stone is high in strength and good in application performance; and desulfurization and denitrification ash is coupled with fly ash to prepare high-strength roadbed stone and co-produce sulfuric acid, so that the desulfurization and denitrification ash is greatly utilized, the fly ash is also greatly utilized, the comprehensiveutilization of solid wastes is realized, the environmental pollution is reduced, the generated sulfuric acid can be used for life and production, and waste is turned into wealth.
一种利用脱硫脱硝灰耦合粉煤灰制备路基石联产硫酸的方法，属于无机非金属材料领域。原料主要包括脱硫脱硝灰、粉煤灰、石墨、双氧水。通过改变脱硫灰和粉煤灰的配比，加入适量石墨作润滑剂，利用中温反应，最终制备了高强度稳定性好的路基石和一定浓度的硫酸。本发明大量利用了堆存量巨大、难处理的两种工业固体废弃物脱硫脱硝灰和粉煤灰；同时生产了一定浓度的硫酸。制备工艺简单，操作方法简单，制备周期短，成本低；制备的路基石强度较高，应用性能好。利用脱硫脱硝灰耦合粉煤灰制备高强度的路基石联产硫酸，不但实现了脱硫脱硝灰的大量利用，而且大量利用了粉煤灰，实现固体废弃物的综合利用，减少了环境污染。生成的硫酸可以用于生活、生产，实现了变废为宝。
Method for preparing roadbed stone and co-producing sulfuric acid by coupling desulfurization and denitrification ash with fly ash
The invention discloses a method for preparing roadbed stone and co-producing sulfuric acid by coupling desulfurization and denitrification ash with fly ash, and belongs to the field of inorganic non-metallic materials, wherein the raw materials mainly comprise desulfurization and denitrification ash, fly ash, graphite and hydrogen peroxide. According to the invention, by changing the ratio of thedesulfurization ash to the fly ash, adding a proper amount of graphite as a lubricant and utilizing a medium-temperature reaction, the roadbed stone with high strength and good stability and sulfuricacid with a certain concentration are finally prepared; according to the method, a large amount of two industrial solid wastes of desulfurization and denitrification ash and fly ash with characteristics of huge stockpiling amount and difficult treatment are utilized while sulfuric acid with a certain concentration is produced; the preparation process is simple, the operation method is simple, thepreparation period is short and the cost is low; the prepared roadbed stone is high in strength and good in application performance; and desulfurization and denitrification ash is coupled with fly ash to prepare high-strength roadbed stone and co-produce sulfuric acid, so that the desulfurization and denitrification ash is greatly utilized, the fly ash is also greatly utilized, the comprehensiveutilization of solid wastes is realized, the environmental pollution is reduced, the generated sulfuric acid can be used for life and production, and waste is turned into wealth.
一种利用脱硫脱硝灰耦合粉煤灰制备路基石联产硫酸的方法，属于无机非金属材料领域。原料主要包括脱硫脱硝灰、粉煤灰、石墨、双氧水。通过改变脱硫灰和粉煤灰的配比，加入适量石墨作润滑剂，利用中温反应，最终制备了高强度稳定性好的路基石和一定浓度的硫酸。本发明大量利用了堆存量巨大、难处理的两种工业固体废弃物脱硫脱硝灰和粉煤灰；同时生产了一定浓度的硫酸。制备工艺简单，操作方法简单，制备周期短，成本低；制备的路基石强度较高，应用性能好。利用脱硫脱硝灰耦合粉煤灰制备高强度的路基石联产硫酸，不但实现了脱硫脱硝灰的大量利用，而且大量利用了粉煤灰，实现固体废弃物的综合利用，减少了环境污染。生成的硫酸可以用于生活、生产，实现了变废为宝。
Method for preparing roadbed stone and co-producing sulfuric acid by coupling desulfurization and denitrification ash with fly ash
利用脱硫脱硝灰耦合粉煤灰制备路基石联产硫酸的方法
ZHANG MEI (author) / GUO MIN (author) / YANG LUOYAN (author) / GU KAIDONG (author)
2020-05-22
Patent
Electronic Resource
Chinese
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