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METHOD OF MANUFACTURING FE AND NI CONTAINING MATERIAL, FERRONICKEL MASS USING THE FE AND NI CONTAINING MATERIAL AND METHOD FOR MANUFACTURING THE FERRONICKEL MASS
METHOD OF MANUFACTURING FE AND NI CONTAINING MATERIAL, FERRONICKEL MASS USING THE FE AND NI CONTAINING MATERIAL AND METHOD FOR MANUFACTURING THE FERRONICKEL MASS
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机译:含铁和镍的材料的制造方法,使用含铁和镍的材料的镍铁质量及制造铁镍质量的方法
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摘要
There are provided a method of manufacturing an Fe/Ni-containing material having a low content of sulfur (S) from an Fe/Ni/SO4-containing liquid waste, a ferronickel mass using the Fe/Ni-containing material, and a method of manufacturing the ferronickel mass. The method of manufacturing an Fe/Ni-containing material from an Fe/Ni-containing liquid waste includes: removing SO4 from an Fe/Ni/SO4-containing liquid waste by adding an SO4 neutralizing agent to the liquid waste so that pH of the liquid waste can be maintained to a pH level of 0.5 to 2.5; precipitating Fe and Ni in the form of hydroxide [(Ni,Fe)(OH)] by adding NaOH to the SO4-free solution; washing the precipitate with water; and manufacturing an Ni/Fe-containing material by filtering and drying the washed Ni/Fe-containing sludge. The method of manufacturing an Fe/Ni-containing material may be useful to suitably apply to the field of recycling of waste acids since an Fe/Ni-containing pellet and a high purity plaster are recovered as the stainless steel material from the waste water at the same time.
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机译:提供了一种从含Fe / Ni / SO 4的废液中制造硫(S)含量低的含Fe / Ni的材料的方法,使用该含Fe / Ni的材料形成的镍铁块和方法。镍铁合金的制造。由含Fe / Ni / SO 4的废液制造含Fe / Ni的材料的方法包括:通过向废液中加入SO 4中和剂,从含Fe / Ni / SO 4的废液中除去SO 4。废液的pH值可保持在0.5至2.5之间;通过向无SO4溶液中加入NaOH沉淀氢氧化物[(Ni,Fe)(OH)]形式的Fe和Ni;用水洗涤沉淀物;通过过滤和干燥洗涤后的含Ni / Fe的污泥来制造含Ni / Fe的材料。含Fe / Ni的材料的制造方法可用于适当地应用于废酸的回收领域,因为含Fe / Ni的颗粒和高纯度灰泥是从废水中回收的不锈钢材料。同一时间。
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