Phosphate rock activation condition screening under treatment of hydrothermal condition

doi:10.7523/j.issn.2095-6134.2013.06.020

Abstract

Abstract:

The phosphate rock was activated in a hydrothermal reaction kettle by using ammonium sulphate as activator, and the hydrothermal technological conditions were studied. The results showed that the effect of activation was strong when the water-solid ratio was 1:1; ammonium sulphate-phosphate rock ratio was 3:7; hydrothermal time was 12 h; and hydrothermal temperature was 220℃. The available P content in activated phosphate rock increased by 78.2%. The phase change of activation products was studied by X-Ray diffraction, and the phase was changed under the treatment of hydrothermal activation.

Key words: phosphate rock, ammonium sulphate, hydrothermal activation, available P

CLC Number:

S143.2

HE Hai-Yong, QI Xin, SHI Yuan-Liang. Phosphate rock activation condition screening under treatment of hydrothermal condition[J]. , 2013, 30(6): 845-850.

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