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介绍26%～28%中低品位磷矿加磷酸酸泥生产一级品过磷酸钙的技术。生产试验表明,在过磷酸钙生产过程中添加1.5～3.5m3/h的酸泥,可使最终产品w(P2O5有效)提高到16.5%左右,每吨产品硫酸消耗减少30～40kg,使用26%～28%品位磷矿石可生产出一级品过磷酸钙。
Describe the technology of 26% ~ 28% middle and low grade phosphate rock and phosphatic acid sludge to produce first grade superphosphate. Production tests show that the addition of 1.5 ~ 3.5m3 / h of acid mud in the production of superphosphate can increase the final product w (P2O5 effective) to about 16.5%, reduce the sulfuric acid consumption per ton of product by 30 ~ 40kg and use 26% ~ 28% grade phosphate rock can produce a product superphosphate.