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介绍了综合利用高Ａｌ低Ｐ含量的清平磷矿废料的一种简单可行的办法．在焙烧清平磷矿废料的硫酸浸取液中加入硫酸铵，在酸性条件下，在常压及５℃的低温下，使铝铵钒（ＮＨ４Ａｌ（ＳＯ４）２·１２Ｈ２Ｏ）大量结晶，从而导致Ｐ和Ａｌ分离．到目前为止，Ａｌ２Ｏ３的总浸取率在８０％以上，其回收率在９０％以上．最后，从残余Ｆｅ３＋、Ａｌ３＋和部分ＳＯ２－４被除去的滤液中，通过石灰水分步中和、沉淀，能得到合格的饲料磷酸氢钙和磷肥．
A simple and feasible method to comprehensively utilize Qingping phosphorite waste with high Al and low P content is introduced. Ammonium sulfate is added to the sulfuric acid leaching solution for burning Qingping phosphate ore waste to crystallize a large amount of ammonium aluminum vanadium (NH4Al (SO4) 2 · 12H2O) under the condition of normal pressure and low temperature of 5 ° C under acidic conditions, resulting in P Separated from Al. So far, the total leaching rate of Al2O3 is above 80%, and the recovery rate is more than 90%. Finally, the filtrate from the residual Fe3 +, Al3 + and some SO2-4 is removed by stepwise neutralization and precipitation by lime water to obtain qualified feed DCP and phosphate fertilizer.