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Desulfurized gypsum pretreatment method
The invention relates to the technical field of desulfurization gypsum pretreatment, and discloses a desulfurization gypsum pretreatment method. The method comprises the following steps: (1) carrying out ball milling on desulfurized gypsum and an organic matter aqueous solution, and carrying out solid-liquid separation to obtain a first solid-phase product; (2) carrying out reaction on the first solid-phase product and an acid solution under a heating condition, and carrying out solid-liquid separation to obtain a second solid-phase product; (3) carrying out reaction on the second solid-phase product, an alkaline solution and an oxidizing agent under a heating condition, and carrying out solid-liquid separation to obtain a third solid-phase product; (4) carrying out reaction on the third solid-phase product and a chlorate solution under a heating condition, and carrying out solid-liquid separation to obtain a fourth solid-phase product; and (5) carrying out reaction on the fourth solid-phase product and an organic alcohol solution under a heating condition, and carrying out solid-liquid separation. According to the method, the content of various heavy metals in the desulfurized gypsum can be reduced, and the water content in the desulfurized gypsum can be reduced.
本发明涉及脱硫石膏预处理技术领域，公开了一种脱硫石膏预处理的方法。该方法包括以下步骤：(1)将脱硫石膏与有机物水溶液进行球磨，固液分离，得到第一固相产物；(2)将所述第一固相产物与酸性溶液在加热条件下进行反应，固液分离，得到第二固相产物；(3)将所述第二固相产物、碱性溶液和氧化剂在加热条件下进行反应，固液分离，得到第三固相产物；(4)将所述第三固相产物与氯化盐溶液在加热条件下进行反应，固液分离，得到第四固相产物；(5)将所述第四固相产物与有机醇溶液在加热条件下进行反应，固液分离。该方法能够降低脱硫石膏中的多种重金属的含量并降低脱硫石膏中的含水率。
Desulfurized gypsum pretreatment method
The invention relates to the technical field of desulfurization gypsum pretreatment, and discloses a desulfurization gypsum pretreatment method. The method comprises the following steps: (1) carrying out ball milling on desulfurized gypsum and an organic matter aqueous solution, and carrying out solid-liquid separation to obtain a first solid-phase product; (2) carrying out reaction on the first solid-phase product and an acid solution under a heating condition, and carrying out solid-liquid separation to obtain a second solid-phase product; (3) carrying out reaction on the second solid-phase product, an alkaline solution and an oxidizing agent under a heating condition, and carrying out solid-liquid separation to obtain a third solid-phase product; (4) carrying out reaction on the third solid-phase product and a chlorate solution under a heating condition, and carrying out solid-liquid separation to obtain a fourth solid-phase product; and (5) carrying out reaction on the fourth solid-phase product and an organic alcohol solution under a heating condition, and carrying out solid-liquid separation. According to the method, the content of various heavy metals in the desulfurized gypsum can be reduced, and the water content in the desulfurized gypsum can be reduced.
本发明涉及脱硫石膏预处理技术领域，公开了一种脱硫石膏预处理的方法。该方法包括以下步骤：(1)将脱硫石膏与有机物水溶液进行球磨，固液分离，得到第一固相产物；(2)将所述第一固相产物与酸性溶液在加热条件下进行反应，固液分离，得到第二固相产物；(3)将所述第二固相产物、碱性溶液和氧化剂在加热条件下进行反应，固液分离，得到第三固相产物；(4)将所述第三固相产物与氯化盐溶液在加热条件下进行反应，固液分离，得到第四固相产物；(5)将所述第四固相产物与有机醇溶液在加热条件下进行反应，固液分离。该方法能够降低脱硫石膏中的多种重金属的含量并降低脱硫石膏中的含水率。
Desulfurized gypsum pretreatment method
脱硫石膏预处理的方法
XU HAO (author) / WEN QUAN (author) / YEN SHIH-CHIEH (author) / GUO CHUNHUI (author) / GUO JINTAO (author) / TIAN CHAO (author) / ZHANG YIRU (author)
2024-08-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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