Method for preparing battery-grade iron phosphate by utilizing iron oxide waste material in metal processing industry
A metal processing, iron oxide technology, applied in chemical instruments and methods, non-metallic elements, phosphorus compounds, etc., can solve problems such as environmental pollution, reduce production costs, facilitate promotion and popularization, and solve the effects of environmental pollution
Active Publication Date: 2017-12-22
江苏荣信环保科技有限公司
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The invention discloses a method for preparing a battery-grade iron phosphate by utilizing an iron oxide waste material in the metal processing industry. The method comprises the following steps: filtration for seven times, distillation at two times, electrolysis at two times and roasting for one time. Compared with a conventional preparation process, the method for preparing the battery-grade iron phosphate by utilizing the iron oxide waste material in the metal processing industry has the advantages that production of sulfur dioxide is avoided, and the prepared iron phosphate does not contain iron oxide and chloride ions, so that the quality is higher, and an iron phosphate lithium battery prepared by the method has no problem of short circuit of elementary iron and can realize quick charging. New energy materials are converted by utilizing solid wastes, so that the problem of environmental pollution in local places is solved, the high-quality iron phosphate also can be prepared, sustainable development of the metal product industry is promoted, and the production cost of the new energy materials is reduced; meanwhile, an elementary lead-zinc raw material can be prepared from the iron oxide waste material, ferrous chloride and sodium hypochlorite also can be prepared, and promotion and popularization are facilitated.
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