A kind of method that prepares nano-zinc oxide with high-zinc dedusting ash
A nano-zinc oxide and high-zinc technology, which is applied in the field of comprehensive utilization of metallurgical resources, can solve the problems of complex preparation process, many types of medicaments, and secondary pollution, and achieve the effects of simple operation, mild reaction conditions, and low energy consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] A method for preparing nano-zinc oxide with high-zinc dedusting ash, the main components and particle size distribution of the high-zinc dedusting ash are shown in Example 1 in Table 1 and Example 1 in Table 2.
[0043] Table 1 Main chemical composition of high zinc dust removal ash, wt%
[0044] Zn Pb Fe Cu Cd Ag mn Example 1 30.5208 7.9226 12.6802 0.0307 0.1159 0.0208 0.0116 Example 2 39.0102 11.8408 4.3370 0.0382 0.0986 0.0197 0.0109 Example 3 38.1227 10.0576 6.5931 0.0269 0.0109 0.0217 0.0127
[0045] Table 2 Particle size analysis of high zinc dust removal ash, %
[0046] particle size >80 mesh 80~120 mesh 120~150 mesh 150~200 mesh Example 1 3.31 3.20 3.81 12.11 77.57 Example 2 3.09 3.36 3.91 11.29 78.35 Example 3 3.18 3.09 3.88 12.02 77.86
[0047] The specific operation steps are as follows:
[0048] S1. Take 200g of high-zinc dedusting ash, ad...
Embodiment 2
[0057] A method for preparing nano-zinc oxide with high-zinc dedusting ash, the main components and particle size distribution of the high-zinc dedusting ash are shown in Example 2 in Table 1 and Example 2 in Table 2.
[0058] The specific operation steps are as follows:
[0059] S1. Take 100g of high-zinc dedusting ash, add 400mL of 180g / L sulfuric acid, control the reaction temperature to 65°C, the stirring speed to 300r / min, and the stirring time to 30min. Filter after the reaction is complete, and collect the filtrate and filter residue respectively;
[0060] S2. Place the filtrate collected in step S1 in a constant temperature water bath at 40°C and stir for 10 minutes, slowly add 150 g / L sodium carbonate solution to adjust its pH value to 3, continue to keep the temperature for 15 minutes, and then slowly add 6.0 mL of industrial hydrogen peroxide. After 1h, adjust the pH value of the solution to 5 with 150g / L of sodium carbonate, filter after 1h, remove the iron in the ...
Embodiment 3
[0065] A method for preparing nano-zinc oxide with high-zinc dedusting ash, the main components and particle size distribution of the high-zinc dedusting ash are shown in Example 3 in Table 1 and Example 3 in Table 2.
[0066] The specific operation steps are as follows:
[0067] S1. Take 100g of high-zinc dedusting ash, add 500mL of 190g / L sulfuric acid, control the reaction temperature to 65°C, the stirring speed to 300r / min, and the stirring time to 30min. Filter after the reaction is complete, and collect the filtrate and filter residue respectively;
[0068] S2. Put the filtrate collected in step S1 in a 40°C constant temperature water bath and stir for 10 minutes, slowly add 160g / L sodium carbonate solution to adjust its pH value to 3, continue to keep the temperature for 15 minutes, slowly add 5.0mL of industrial hydrogen peroxide, after 1h With the sodium carbonate of 160g / L, the solution pH value is adjusted to 5, filter after 1h, remove the iron in the filtrate, coll...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More