Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for removing organic matters in phosphogypsum
The invention discloses a method for removing organic matters in phosphogypsum. The method comprises the following steps: (1) adding washing water into phosphogypsum, conducting uniform stirring, conducting standing for layering, and scraping off a black organic matter layer floating on a water surface; (2) adjusting the pH value of a phosphogypsum solid-liquid mixture to 3-5, adding ferrous sulfate and hydrogen peroxide, and conducting reacting for 1-2 hours under a stirring condition; and (3) carrying out suction filtration on the phosphogypsum solid-liquid mixture to obtain organic matter-removed phosphogypsum. The method is simple in process, short in reaction time, remarkable in effect and low in cost.
本发明公开了一种除磷石膏中有机物的方法，包括以下步骤：（1）在磷石膏中加入洗涤水，搅拌均匀后静置分层，刮去浮在水面的黑色有机物层；（2）调整磷石膏固液混合物pH至3‑5，加入硫酸亚铁，双氧水，搅拌条件下反应1‑2小时；（3）抽滤磷石膏固液混合物，得到去除有机物的磷石膏。本发明的方法简单，反应时间短，效果显著，成本低。
Method for removing organic matters in phosphogypsum
The invention discloses a method for removing organic matters in phosphogypsum. The method comprises the following steps: (1) adding washing water into phosphogypsum, conducting uniform stirring, conducting standing for layering, and scraping off a black organic matter layer floating on a water surface; (2) adjusting the pH value of a phosphogypsum solid-liquid mixture to 3-5, adding ferrous sulfate and hydrogen peroxide, and conducting reacting for 1-2 hours under a stirring condition; and (3) carrying out suction filtration on the phosphogypsum solid-liquid mixture to obtain organic matter-removed phosphogypsum. The method is simple in process, short in reaction time, remarkable in effect and low in cost.
本发明公开了一种除磷石膏中有机物的方法，包括以下步骤：（1）在磷石膏中加入洗涤水，搅拌均匀后静置分层，刮去浮在水面的黑色有机物层；（2）调整磷石膏固液混合物pH至3‑5，加入硫酸亚铁，双氧水，搅拌条件下反应1‑2小时；（3）抽滤磷石膏固液混合物，得到去除有机物的磷石膏。本发明的方法简单，反应时间短，效果显著，成本低。
Method for removing organic matters in phosphogypsum
一种除磷石膏中有机物的方法
DAI FANQING (Autor:in) / LIU SHANGZHENG (Autor:in)
30.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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