• 27 2018-07

    Wet and themal process

    Phosphoric acid is produced industrially by two general routes – the thermal process and the wet process, which includes two sub-methods. The wet process dominates in the commercial sector. The more expensive thermal process produces a purer product, which is used for applications in the food industry.WetWet-process phosphoric acid is prepared by addingsulfuric acidtotricalcium phosphaterock

  • 18 2018-07

    What is polyphosphoric acid?

    What is polyphosphoric acid?Polyphosphoric acid abbreviation: PPA. Molecular formula: H6P4O13. Molecular weight: 337.93Classification and serial number of dangerous regulations: GB8.1 class 815052.Original iron gauge: secondary inorganic acid corrosion, 93007Uses: Used as a cyclizing agent and acylating agent in organic synthesis, analytical reagent, substitute for orthophosphate.F

  • 18 2018-07

    The detail of new refractory

    The detail of new refractoryIn recent years, the promotion of new steel production technologies and new technologies, as well as energy saving and environmental protection requirements, have put forward more special requirements for new refractory materials. From the perspective of future development trends, the new refractory materials will include high-performance structural refractories and

  • 16 2018-07

    After years of application of ammonium dihydrogen phosphate, the fertilizer effi

    After years of application of ammonium dihydrogen phosphate, the fertilizer efficiency is not ideal, why?​Ammonium dihydrogen phosphate is a binary compound fertilizer containing 18% nitrogen (N) and 46% phosphorus (P205). It is a low-nitrogen, high-phosphorus fertilizer that works particularly well on phosphorus-deficient soils. Many farmland soils in China are deficient in phosphorus. F