Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
System and method for continuously producing modified calcium hydroxide for dechlorination
The invention relates to the field of preparation of dechlorinating agents, and discloses a system and a method for continuously producing modified calcium hydroxide for dechlorination. The system adopts an aqueous solution containing ethanol and triethanolamine as a digestion solution, and the prepared modified calcium hydroxide has large specific surface area and controllable particle size; the system is provided with a device for recovering and separating ethanol and triethanolamine in steam generated by the digestion reaction, and the recovered ethanol and triethanolamine return to the corresponding storage tanks for continuous use, so that the production cost is effectively reduced, the raw material feeding frequency is reduced, and the production continuity of the system is improved. When the system is used for preparing modified calcium hydroxide, high-quality modified calcium hydroxide can be prepared from quicklime raw materials with lower quality, and the system shows better dechlorination performance and selectivity and has better economic benefits.
本发明涉及脱氯剂制备领域，公开了一种连续生产脱氯用改性氢氧化钙的系统和方法。该系统采用含乙醇和三乙醇胺的水溶液作为消化溶液，制备的得到的改性氢氧化钙具有较大的比表面积和可控的粒径；该系统设置有回收分离消化反应产生的蒸汽中的乙醇和三乙醇胺的装置，回收后的乙醇和三乙醇胺返回对应的储罐继续使用，有效降低了生产成本，降低了原料加料频率，提高了系统的生产连续性。将该系统用于制备改性氢氧化钙，能使用较低品质的生石灰原料制备得到高品质的改性氢氧化钙，表现出较好的脱氯性能和选择性，具有较好的经济效益。
System and method for continuously producing modified calcium hydroxide for dechlorination
The invention relates to the field of preparation of dechlorinating agents, and discloses a system and a method for continuously producing modified calcium hydroxide for dechlorination. The system adopts an aqueous solution containing ethanol and triethanolamine as a digestion solution, and the prepared modified calcium hydroxide has large specific surface area and controllable particle size; the system is provided with a device for recovering and separating ethanol and triethanolamine in steam generated by the digestion reaction, and the recovered ethanol and triethanolamine return to the corresponding storage tanks for continuous use, so that the production cost is effectively reduced, the raw material feeding frequency is reduced, and the production continuity of the system is improved. When the system is used for preparing modified calcium hydroxide, high-quality modified calcium hydroxide can be prepared from quicklime raw materials with lower quality, and the system shows better dechlorination performance and selectivity and has better economic benefits.
本发明涉及脱氯剂制备领域，公开了一种连续生产脱氯用改性氢氧化钙的系统和方法。该系统采用含乙醇和三乙醇胺的水溶液作为消化溶液，制备的得到的改性氢氧化钙具有较大的比表面积和可控的粒径；该系统设置有回收分离消化反应产生的蒸汽中的乙醇和三乙醇胺的装置，回收后的乙醇和三乙醇胺返回对应的储罐继续使用，有效降低了生产成本，降低了原料加料频率，提高了系统的生产连续性。将该系统用于制备改性氢氧化钙，能使用较低品质的生石灰原料制备得到高品质的改性氢氧化钙，表现出较好的脱氯性能和选择性，具有较好的经济效益。
System and method for continuously producing modified calcium hydroxide for dechlorination
一种连续生产脱氯用改性氢氧化钙的系统和方法
SHAO YUNXIA (Autor:in) / LI MIN (Autor:in) / YANG CHUNZHEN (Autor:in) / CONG WEI (Autor:in) / LIU ZEYANG (Autor:in) / FAN XIAOJING (Autor:in)
21.01.2025
Patent
Elektronische Ressource
Chinesisch
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