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Phosphoric acid (PA FOOD GRADE)                                       
RAs(catalyst)

yellow phosphorus→melt→ combustion(700℃)→hydration→dearsenification (70℃)
                                                            ↓
                                 packing ←desaeration (70℃) ← filtration 
 
Phosphoric acid is produced by Thermal process—Put the melting yellow phosphorus into the burning tower and burn it with oxygen ,which will produce phosphorous pentoxide . The phosphorous pentoxide together with water become phosphoric acid,then add catalyst to dearsenify .The flowing are filtration、desaeration and packing。
All our production line equipments are 316L stainless steel material,which ensure us supply a perfect quality.

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