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A platform for research: civil engineering, architecture and urbanism
Method for extracting and preparing nano iron oxide from high-iron solid waste
The invention relates to a method for extracting and preparing nano iron oxide from high-iron solid waste, which comprises the following steps: soaking original high-iron solid waste in deionized water to remove soluble substances in the high-iron solid waste, and then washing with deionized water and drying; after the pretreated high-iron solid waste is subjected to hydrochloric acid stirring reaction, a micron-pore membrane is adopted for filtering, and filtrate is collected; dropwise adding an alkaline solvent into the filtrate under the stirring condition, and adjusting the pH value to 2-4; after the solid-liquid mixture is separated, the obtained precipitate is dried to obtain ferric oxide; and carrying out reduction treatment on the ferric oxide to obtain the ferroferric oxide. According to the method, the nano iron oxide with high purity, high specific surface area and high activity can be extracted and prepared from the high-iron solid waste, waste emission can be effectively reduced, reutilization and cyclic utilization of resources can be promoted, the utilization rate is high, byproducts can be recycled and converted, energy consumption can be remarkably reduced, the production cost can be reduced, and the method has remarkable economic benefits.
本发明是一种从高铁固废中提取制备纳米铁氧化物的方法，该方法包括以下步骤：将原始高铁固废浸泡于去离子水中去除其中可溶性物质，随后进行去离子水洗涤和干燥处理；预处理后的高铁固废进行盐酸搅拌反应后，采用微米孔膜过滤收集滤液；在搅拌条件下的滤液中滴加碱性溶剂，调节pH值至2‑4；固液混合物分离后，所得沉淀物烘干后即为三氧化二铁；对三氧化二铁进行还原处理，得到四氧化三铁。本发明能从高铁固废中提取制备高纯度、高比表面积和高活性的纳米铁氧化物，可有效减少废物排放，促进资源的再利用和循环利用，并且利用率高，副产物可回收转化，能够显著减少能源消耗，降低生产成本，具有显著的经济效益。
Method for extracting and preparing nano iron oxide from high-iron solid waste
The invention relates to a method for extracting and preparing nano iron oxide from high-iron solid waste, which comprises the following steps: soaking original high-iron solid waste in deionized water to remove soluble substances in the high-iron solid waste, and then washing with deionized water and drying; after the pretreated high-iron solid waste is subjected to hydrochloric acid stirring reaction, a micron-pore membrane is adopted for filtering, and filtrate is collected; dropwise adding an alkaline solvent into the filtrate under the stirring condition, and adjusting the pH value to 2-4; after the solid-liquid mixture is separated, the obtained precipitate is dried to obtain ferric oxide; and carrying out reduction treatment on the ferric oxide to obtain the ferroferric oxide. According to the method, the nano iron oxide with high purity, high specific surface area and high activity can be extracted and prepared from the high-iron solid waste, waste emission can be effectively reduced, reutilization and cyclic utilization of resources can be promoted, the utilization rate is high, byproducts can be recycled and converted, energy consumption can be remarkably reduced, the production cost can be reduced, and the method has remarkable economic benefits.
本发明是一种从高铁固废中提取制备纳米铁氧化物的方法，该方法包括以下步骤：将原始高铁固废浸泡于去离子水中去除其中可溶性物质，随后进行去离子水洗涤和干燥处理；预处理后的高铁固废进行盐酸搅拌反应后，采用微米孔膜过滤收集滤液；在搅拌条件下的滤液中滴加碱性溶剂，调节pH值至2‑4；固液混合物分离后，所得沉淀物烘干后即为三氧化二铁；对三氧化二铁进行还原处理，得到四氧化三铁。本发明能从高铁固废中提取制备高纯度、高比表面积和高活性的纳米铁氧化物，可有效减少废物排放，促进资源的再利用和循环利用，并且利用率高，副产物可回收转化，能够显著减少能源消耗，降低生产成本，具有显著的经济效益。
Method for extracting and preparing nano iron oxide from high-iron solid waste
一种从高铁固废中提取制备纳米铁氧化物的方法
ZHANG LIAN (author) / YANG SASHA (author) / DAI BAIQIAN (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
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