Granular medium element fertilizer based on phosphorite flotation tailings and preparation method thereof

• Main Authors: ZHANG HONGJIANG, YU YUN, LU ZHENYA, WU JING, MA QIANG
• Format: Patent
• Language: Chinese; English
• Published: 14.09.2021
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CHEMISTRY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; FERTILISING; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; PLANTING; SOWING; TRAPPING

The invention discloses a granular medium element fertilizer based on phosphorite flotation tailings and a preparation method thereof. The method for preparing the granular medium element fertilizer based on the phosphorite flotation tailings comprises the steps of 1) crushing the phosphorite flotation tailings to obtain phosphorite flotation tailing powder; and 2) mixing a disintegration auxiliary agent with the phosphorite flotation tailing powder obtained in the step 1, granulating, and drying to obtain the granular medium element fertilizer based on the phosphorite flotation tailings. While the strength of the granules is ensured, the granules can be quickly disintegrated, so that the absorption and utilization of crops on nutrients such as magnesium are met, and the normal growth of the crops is maintained. 本发明公开了一种基于磷矿浮选尾矿的粒状中量元素肥及其制备方法。本发明提供的基于磷矿浮选尾矿制备的粒状中量元素肥的方法，包括：1)将磷矿浮选尾矿粉碎，得到磷矿浮选尾矿粉；2)将崩解助剂与步骤1所得磷矿浮选尾矿粉混合造粒，烘干，得到所述基于磷矿浮选尾矿的粒状中量元素肥。本发明在保证颗粒强度的同时，能够使得颗粒快速崩解，进而满足作物对镁等养分的吸收与利用，维持作物的正常生长。