选用天然磷矿粉为原材料,通过硫酸酸化、有机无机活化剂活化分别制得酸化磷矿粉和活化磷矿粉。采用扫描电镜观察、X-射线衍射分析、激光粒度测试,证明了90%的酸化磷矿粉粒径为4.227μm,90%的活化磷矿粉粒径达到220 nm。活化磷矿粉结晶度降低,比表面积增大,有利于磷素在土壤中的释放与吸附。此种制备方法开辟了磷肥生产新工艺。 The natural rock phosphate is selected as the raw material, and the acidified rock phosphate and the activated rock phosphate are respectively prepared through the acidification of sulfuric acid and the activation of the organic inorganic activator. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and laser particle size measurement showed that the particle size of 90% of the phosphate rock was 4.227μm and the particle size of 90% of the activated phosphate rock reached 220 nm. Activated phosphate rock lower crystallinity, specific surface area increases, is conducive to the release of phosphorus in the soil and adsorption. This preparation method opened up a new phosphate fertilizer production process.