Metal Oxide MANUFACTURING MEHTOD OF FERTILLZER FROM AMMONIUM NITRATE WASTE

摘要

The present invention relates to a method for producing fertilizer using ammonium nitrate waste generated in the metal oxide manufacturing process, and more specifically, removing and obtaining heavy and rare metals such as iron, chromium, indium, and gallium from ammonium nitrate waste. At the same time, high-purity regenerated ammonium nitrate is obtained, concentrated and purified, and applied to fertilizer, so that not only can resources be recycled, but also environmental pollution can be prevented. Production of fertilizer using ammonium nitrate waste generated in the metal oxide manufacturing process It's about how. The method of manufacturing fertilizer using ammonium nitrate waste generated in the metal oxide manufacturing process according to the present invention includes a pre-treatment step (S100) of removing impurities and heavy metals from ammonium nitrate waste; and ammonium nitrate waste from which impurities and heavy metals are removed and Neutralization dissolution and neutralization step (S200); and filtration step of filtering dissolved and neutralized ammonium nitrate waste (S300); and solvent filtering of the filtered ammonium nitrate waste filtrate to extract valuable metals such as indium (In) and gallium ( Ga) extraction and removal of valuable metals to extract and remove (S400); and concentration step to concentrate the filtrate from which indium and gallium is extracted and removed (S500); and concentrated filtrate prepared as fertilizer or microbial nutrient It includes a processing step (S600).