A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ardealite activation method
The invention provides an ardealite activation method which comprises the following steps: mixing ardealite with inorganic acid, reacting, performing solid-liquid separation, washing, and calcining, and cooling the calcined phosphogypsum, grinding, and adding an activation modifier to obtain the modified gypsum product. According to the method disclosed by the invention, the phosphogypsum is pretreated and calcined to fully remove impurities, and then is modified in a manner of grinding and adding an activating agent, so that the activation degree of the gypsum is improved, the oil absorption value is reduced, the utilization value of the gypsum is improved, the problem that the gypsum is limited in the aspect of filler application is solved, and the application field of the phosphogypsum is favorably expanded; the method is easy and convenient to operate, waste heat generated after calcination can be effectively utilized, heat in the system is fully utilized, the production cost is reduced, and the competitive advantage is improved.
本发明提供了一种磷石膏活化的方法，所述方法包括以下步骤：将磷石膏与无机酸混合，反应后固液分离、洗涤，然后进行煅烧；将煅烧后的磷石膏冷却降温后进行粉磨，并同时加入活化改性剂，得到改性石膏产品。本发明所述方法通过对磷石膏的预处理、煅烧，以充分去除杂质，再通过粉磨和添加活化剂的方式进行改性，提高石膏的活化度，降低吸油值，提高其利用价值，解决其在填料应用方面受到限制的问题，有助于扩展磷石膏的应用领域；所述方法操作简便，能够有效利用煅烧后的余热，系统内热量充分利用，降低生产成本，提高竞争优势。
Ardealite activation method
The invention provides an ardealite activation method which comprises the following steps: mixing ardealite with inorganic acid, reacting, performing solid-liquid separation, washing, and calcining, and cooling the calcined phosphogypsum, grinding, and adding an activation modifier to obtain the modified gypsum product. According to the method disclosed by the invention, the phosphogypsum is pretreated and calcined to fully remove impurities, and then is modified in a manner of grinding and adding an activating agent, so that the activation degree of the gypsum is improved, the oil absorption value is reduced, the utilization value of the gypsum is improved, the problem that the gypsum is limited in the aspect of filler application is solved, and the application field of the phosphogypsum is favorably expanded; the method is easy and convenient to operate, waste heat generated after calcination can be effectively utilized, heat in the system is fully utilized, the production cost is reduced, and the competitive advantage is improved.
本发明提供了一种磷石膏活化的方法，所述方法包括以下步骤：将磷石膏与无机酸混合，反应后固液分离、洗涤，然后进行煅烧；将煅烧后的磷石膏冷却降温后进行粉磨，并同时加入活化改性剂，得到改性石膏产品。本发明所述方法通过对磷石膏的预处理、煅烧，以充分去除杂质，再通过粉磨和添加活化剂的方式进行改性，提高石膏的活化度，降低吸油值，提高其利用价值，解决其在填料应用方面受到限制的问题，有助于扩展磷石膏的应用领域；所述方法操作简便，能够有效利用煅烧后的余热，系统内热量充分利用，降低生产成本，提高竞争优势。
Ardealite activation method
一种磷石膏活化的方法
LI SHANSHAN (author) / LIU LIJUAN (author) / TANG WEI (author) / LI DONG (author)
2024-12-27
Patent
Electronic Resource
Chinese
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