Method for Synthesizing Fe-Carbon Internal Electrolytic Filler by In-Situ Carbothermal Reduction
A technology of synthesizing iron and internal electrolysis, applied in chemical instruments and methods, multi-stage water/sewage treatment, neutralized water/sewage treatment, etc. High-level problems, to improve work efficiency, avoid excessive consumption of fillers, and achieve good results
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Embodiment 1
[0020] Weigh 50g of coal-based pitch, disperse it into 2kg of Fenton's reagent, the pH value of Fenton's reagent is 3.2, and the mass ratio of hydrogen peroxide and ferrous chloride in Fenton's reagent is 5:1, and then place in hydrothermal In the reaction kettle, after hydrothermal reaction at 150°C for 6 hours, add 20.5g of copper nitrate solution as an activity regulator, continue the hydrothermal reaction at 180°C for 8 hours, then centrifuge and dry at 120°C for 6 hours; then, place in a muffle In the furnace, iron-carbon inner electrolytic filler A was prepared after roasting at 720°C for 6 hours, and its specific gravity was 1.37t / m 3 , specific surface area 1.37m 2 / g, porosity 77%.
Embodiment 2
[0022] Weigh 50g of coal-based pitch and disperse it into 4kg of Fenton's reagent. The pH value of Fenton's reagent is 3.5. The mass ratio of hydrogen peroxide and ferrous sulfate in Fenton's reagent is 3:1, and then placed in a hydrothermal reaction In the still, after hydrothermal reaction at 200°C for 3 hours, add activity modifiers 40.5g cobalt nitrate and 40.5g cerium nitrate, continue hydrothermal reaction at 200°C for 5h, then centrifuge and dry at 150°C for 4h; then, Place it in a muffle furnace and bake it at 900°C for 4 hours to obtain the iron-carbon inner electrolytic filler B with a specific gravity of 1.5t / m 3 , specific surface area 1.54m 2 / g, porosity 83%.
Embodiment 3
[0024] Weigh 50g of coal-based pitch, disperse it into 500g of Fenton's reagent, the pH value of Fenton's reagent is 3.0, and the mass ratio of hydrogen peroxide and ferrous sulfate in Fenton's reagent is 8:1, and then placed in hydrothermal reaction In the still, after hydrothermal reaction at 250°C for 8 hours, add activity regulators 0.55g manganese nitrate and 0.55g copper nitrate, continue to react at 150°C for 3h, then centrifuge and dry at 130°C for 5h; then, Put it in a muffle furnace and bake it at 500°C for 8 hours to obtain an iron-carbon inner electrolytic filler C with a specific gravity of 1.4t / m 3 , specific surface area 1.46m 2 / g, porosity 81%.
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