Wet Process Phosphoric Acid Arsenic Removal Settling Agent HQ-TAsCJJ

Crude wet-process phosphoric acid contains approximately 50~60mg/L of highly toxic arsenic (As) element. Currently, sodium sulfide is commonly used to react with wet-process phosphoric acid to generate arsenic sulfide precipitate, thereby removing As from crude phosphoric acid. Since the generated arsenic sulfide particles are extremely fine, natural sedimentation requires a long time. If the arsenic removal settling agent HQ-TAsCJJ is added during the arsenic removal reaction process, it can significantly accelerate the sedimentation of fine arsenic sulfide particles and improve the efficiency of the arsenic removal process.