Effect of Ammonium Chloride Solution on the Growth of Phosphorus Gypsum Whisker and Its Modification

الملخص EN

Phosphogypsum is the by-product of phosphate of fertilizer or phosphate which causes serious environmental pollution.

In this work, a series of phosphogypsum whiskers were prepared using phosphogypsum as raw materials and NH4Cl as additive through the atmospheric water solution method.

The results showed that the ammonium chloride solution has a great influence on phosphogypsum whiskers growth and the solubility.

The best whisker aspect ratio of phosphogypsum was preferred in 1 mol/L NH4Cl solution, in which the solubility achieved 6.434 mg/mL and the aspect ratio reached 69.29.

Besides, NH4Cl was found to have a modified effect on gypsum whiskers’ growth and it can be used to get mesh or dendritic whiskers.