Zirconium Pyrophosphate

Zirconium pyrophosphate (ZrP₂O₇) is an inorganic compound which has important applications in the fields of adsorption and catalysis. Compared with conventional zirconium phosphate, zirconium pyrophosphate does not contain water

 Scope of Application：

-Ion exchange adsorption: Zirconium pyrophosphate has high selective adsorption capacity for cations such as cesium (Cs⁺). The mechanism is that Cs⁺and H⁺on the hydroxyl group (-OH) on the surface of zirconium pyrophosphate exchange ion.

-Chemical adsorption: The adsorption process belongs to chemical adsorption rather than physical adsorption, so it is less affected by the acidity of the solution and remains stable in a wide pH range.

-Surface complexation: The porous structure and high specific surface area (about 180.7 m²/g) of zirconium pyrophosphate enable it to effectively capture target ions such as radioactive cesium (¹³⁷Cs).

1. Product features

1.1 Morphology and structure: amorphous porous material, belonging to orthorhombic crystal system.

1.2 Thermal stability: It has good thermal stability and is suitable for high temperature environment applications.

1.3 Solubility: insoluble in water, but soluble in acid (such as HNO₃).

1.4 Surface area: about 180.7 m²/g, providing a large number of adsorption sites.

2. Suggest an addition

Depending on the application scenario:

2.1 If used for flame retardant preparation, the addition amount is usually 1:0.01-0.018 (in proportion to the catalyst).

2.2 When used or rolled, the total phosphate added should be controlled to be less than 0.3%.

It is used for the separation of cesium in high-level radioactive waste liquid. It is recommended to use it in an acidic medium pH1-3 to improve the adsorption efficiency.