山西省某地胶磷矿属中低品位的硅质碳酸盐型磷酸盐矿石,主要有用矿物为胶磷矿、隐晶磷灰石和微晶磷灰石。它们主要赋存于钙的磷酸盐和磷质生物碎屑中。脉石矿物以石英、微斜长石、正长石、礈石、白云石、方解石,玉髓、电气石、粘土质、铁质等为主,它们是同生作用产物。由于矿石种类繁多,结构构造极为复杂,过去曾有人采用焙烧——氯化铵处理——浮选流程,取得了较好效果。但是,氯化铵是有效化肥之一。我们采用氯化钠代替氯化铵,并采用与上述相似的流程和条件,亦取得了较好效果,技术指标与前法相近。然而,氯化钠来源充足,运输方便,用量比氯化铵低10倍,在经济上是合算的,为处理难选胶磷矿进一步提供了经济上 A phosphate rock in Shanxi Province is a low-grade siliceous carbonate phosphate ore. The main useful minerals are colloidal phosphate, cryptocrystalline apatite and microcrystalline apatite. They are mainly found in calcium phosphates and phosphorus biocides. The gangue minerals are mainly quartz, plagioclase, orthoclase, cristobalite, dolomite, calcite, chalcedony, tourmaline, clayey matter and iron, which are the products of symbiotic action. Due to the variety of ores, the structural structure is extremely complicated. In the past, some people used calcination-ammonium chloride treatment-flotation process and achieved good results. However, ammonium chloride is one of the effective fertilizers. We use sodium chloride instead of ammonium chloride, and using the above processes and conditions, but also achieved good results, technical indicators similar to the previous method. However, adequate sources of sodium chloride, ease of transport and a 10-fold lower dosage than ammonium chloride are economically justifiable and provide further economic advantages for the treatment of refractory phosphogypophites