A kind of preparation method of nano wet oxidation catalyst
A wet oxidation and catalyst technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of low COD removal efficiency, affecting catalyst performance, and active components Problems such as copper loss, to achieve the effect of reducing the loss of copper ions, no precious metal components, and reducing production costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] Slurry 70g of activated alumina to form Al-containing 2 o 3 For a 300g / L slurry, add copper nitrate solution containing 15g as CuO, ultrasonically oscillate for 2 hours, then gradually add ammonia water to adjust the pH value to 8.5, after the precipitation is complete, filter and wash; then use deionized water to make the water-containing Add 3g of cerium nitrate solution as CeO to the slurry with a rate of 50%, and ultrasonically oscillate for 1.5h while stirring, and after direct drying, roast at 620°C for 2h; after roasting, mix the powder with 20g of manganese nitrate solution as MnO Make a slurry with a water content of 30%, add 1g of scallop powder after stirring, stir for 40min, seal and stand for 24h, extrude into a clover shape, apply 10g of nano-sized cerium oxide after drying, and bake at 650°C for 7h to obtain wet oxidation Catalyst Sample A.
Embodiment 2
[0037] 30g of activated alumina pellets were beaten to form Al-containing 2 o 3 To make a 100g / L slurry, add copper nitrate solution containing 8g as CuO, ultrasonically oscillate for 3 hours, then gradually add ammonia water to adjust the pH value to 9.0, after the precipitation is complete, filter and wash; then use deionized water to make the washed material Add 2 g of cerium nitrate solution as CeO to the slurry with a rate of 50%, ultrasonically oscillate for 1.5 h while stirring, and after direct drying, roast at 500°C for 7 h; after roasting, mix the powder with 10 g of manganese nitrate solution as MnO Make a slurry with a water content of 40%, add 1g of scallop powder after stirring, stir for 40min, seal and let stand for 20h, extrude into a clover shape, apply 3g of nano-sized cerium oxide after drying, and bake at 550°C for 2h to obtain wet oxidation Catalyst Sample B.
Embodiment 3
[0041] 40g of activated alumina pellets were beaten to form Al-containing 2 o 3 For 100g / L slurry, add copper nitrate solution containing 15g as CuO, ultrasonically oscillate for 3 hours, then gradually add ammonia water to adjust the pH value to 9.0, after the precipitation is complete, filter and wash; then use deionized water to make the washed material Add 3 g of cerium nitrate solution as CeO to the slurry with a rate of 50%, ultrasonically oscillate for 1.5 h while stirring, and after direct drying, roast at 550 ° C for 7 h; after roasting, mix the powder with 15 g of manganese nitrate solution as MnO Make a slurry with a water content of 40%, add 1g of scallop powder after stirring, stir for 40min, seal and stand for 20h, extrude into a clover shape, apply 6g of nano-sized cerium oxide after drying, and bake at 550°C for 2h to obtain wet oxidation Catalyst Sample C.
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More