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Titanium dioxide industry waste acid treatment method
The invention provides a titanium dioxide industry waste acid treatment method, which comprises two innovative processes, namely a two-step method for adjusting the pH value of waste acid and a crystal transformation method. The preparation method comprises the following specific preparation steps: waste acid filtration, preparation of low-carbon titanium gypsum through a one-step neutralization reaction, preparation of iron-rich titanium gypsum through a two-step neutralization reaction, preparation of building gypsum through a heat treatment method, and magnetic separation of the iron-rich titanium gypsum. Compared with a traditional waste acid one-step treatment method, the method has the advantages that the acid wastewater generated by a titanium dioxide factory can be effectively treated, and the yield of traditional high-iron-content titanium gypsum is greatly reduced.
本发明提供了一种钛白行业废酸处理方法,该方法包含两点创新工艺，一是通过二步法调节废酸pH值、二是转晶调节。具体的制备步骤包括废酸过滤、一步中和反应制备低碳钛石膏、二步中和反应制备富铁钛石膏、热处理法制备建筑石膏、富铁钛石膏磁选分离。与传统废酸一步处理法相比，本方法能够有效地处理钛白粉厂产生的酸性废水，大幅度的降低传统高含铁钛石膏的产量。
Titanium dioxide industry waste acid treatment method
The invention provides a titanium dioxide industry waste acid treatment method, which comprises two innovative processes, namely a two-step method for adjusting the pH value of waste acid and a crystal transformation method. The preparation method comprises the following specific preparation steps: waste acid filtration, preparation of low-carbon titanium gypsum through a one-step neutralization reaction, preparation of iron-rich titanium gypsum through a two-step neutralization reaction, preparation of building gypsum through a heat treatment method, and magnetic separation of the iron-rich titanium gypsum. Compared with a traditional waste acid one-step treatment method, the method has the advantages that the acid wastewater generated by a titanium dioxide factory can be effectively treated, and the yield of traditional high-iron-content titanium gypsum is greatly reduced.
本发明提供了一种钛白行业废酸处理方法,该方法包含两点创新工艺，一是通过二步法调节废酸pH值、二是转晶调节。具体的制备步骤包括废酸过滤、一步中和反应制备低碳钛石膏、二步中和反应制备富铁钛石膏、热处理法制备建筑石膏、富铁钛石膏磁选分离。与传统废酸一步处理法相比，本方法能够有效地处理钛白粉厂产生的酸性废水，大幅度的降低传统高含铁钛石膏的产量。
Titanium dioxide industry waste acid treatment method
一种钛白行业废酸处理方法
MENG HAINING (author) / GUO DI (author) / AO LIN (author) / XU CHENGLONG (author) / LU XIAOJUN (author)
2024-09-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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