Carbon ferrochrome liquid phase method for preparing new energy battery raw material and new energy source hydrogen process
A technology of ferrochromium carbon and battery materials, which is applied in the direction of iron oxide/hydroxide, chromium halide, chromium sulfate, etc., and can solve the problems of low competitive advantage of simple varieties and high cost of raw materials
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[0039] 1. Grind 1,000kg of high-carbon ferrochrome into fine powder of 200 mesh or more, put it into a reaction kettle, add a sufficient amount of sulfuric acid 3,000kg, heat it at 15°C-100°C and stir thoroughly, and the reaction dissolves, so that ferrochrome can completely generate ions (Cr 3+ , Fe 2+ ) solution, collect hydrogen, and make 40kg hydrogen of product new energy;
[0040] 2. Add water to the solution to make the soluble substances into ions, including Cr 3+ , Fe 2+ The precipitate in the solution is Si, and the suspended matter is C. The solution is filtered separately to obtain the filtrate and filter residue. The filter residue is washed, separated, and dried to obtain the product Si: 30kg and C: 70kg. The product Si is then produced into polysilicon and single crystal. silicon, the filtrate contains Cr 3+ , Fe 2+ solution and trace metal ions;
[0041] 3. Add oxalic acid 650Kg in the filtrate to make Fe 2+ Completely precipitated as FeC 2 o 4 , filter...
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