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发明公开
CN110193339A 一种磁性晶核材料及其制备方法和在含磷淀粉废水净化处理中的应用 无效 - 撤回

一种磁性晶核材料及其制备方法和在含磷淀粉废水净化处理中的应用
摘要：
本发明公开了一种磁性晶核材料及其制备方法和在含磷淀粉废水净化处理中的应用。磁性晶核材料具有核壳结构，内核为磁铁矿，外壳为具有多孔结构的赤铁矿；其制备过程为：将磁铁矿采用稀硫酸浸渍后，高温焙烧处理，冷却，即得。制备的磁性晶核具有强磁性，且表面具有多孔结构，比表面积大，吸附能力强，其在中性和碱性条件下均可以较好地吸附淀粉和磷酸根，且在碱性条件下可以配合絮凝剂絮凝微细颗粒物，从而利用磁性晶核材料可以通过磁分离技术迅速将淀粉和磷酸根及微细颗粒物等从含磷淀粉废水中高效分离，操作过程简单、成本低，满足工业化生产及应用要求。
摘要（英）：

The invention discloses a magnetic crystal nucleus material, a preparation method thereof and application in phosphorus-containing starch waste water purification treatment. The magnetic crystal nucleus material has a core-shell structure, the core is magnetite, and the shell is hematite with a porous structure. The preparation process comprises soaking the magnetite in dilute sulfuric acid, roasting at high temperature, and cooling. The prepared magnetic crystal nucleus has strong magnetism, has a porous structure on the surface, has large specific surface area and strong adsorption capacity,can better adsorb starch and phosphate under neutral and alkaline conditions, and can flocculate fine particles with a flocculant under alkaline conditions, so that starch, phosphate, fine particlesand the like can be quickly separated from phosphorus-containing starch waste water with high efficiency through a magnetic separation technology by using the magnetic crystal nucleus material, the operation process is simple, the cost is low, and the requirements of industrial production and application are met.

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