Carbon microspheres with high specific surface area and preparation method for carbon microspheres with high specific surface area
A high specific surface area, carbon microsphere technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of complex preparation process of spherical activated carbon, complex preparation process and equipment, poor sphericity of activated carbon products, etc. Enhance the effect of activated pore formation, low cost and lower production cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0059] Example 1
[0060] Mix 5 grams of carbon black, 20 grams of KOH, 5 grams of wheat starch and 100 grams of water, and stir for 1 hour at 20°C. The solution is dried and granulated by a spray dryer. The spray drying inlet temperature is 230°C, and the outlet temperature is 70-150°C; it is activated at 800°C for 10 hours in a steam atmosphere and washed with 0.1mol / L hydrochloric acid and water. After drying, carbon microspheres with high specific surface area are obtained.
[0061] The high specific surface area carbon microspheres prepared above were used to observe the morphology of the sample with the JSM-7001F field emission scanning electron microscope produced by Japan Electronics Oxford Instruments. figure 1 , figure 2 It is the SEM image of the high specific surface area carbon microspheres obtained in Example 1. It can be seen from the figure that the sphericity of the material is relatively high, and the carbon microspheres are composed of carbon black particles, a...
Example Embodiment
[0063] Example 2
[0064] Mix 1000 grams of KOH, 10 grams of polyvinyl alcohol and 1000 grams of water, and stir at 60°C for 3 hours. The obtained slurry and 1000 grams of charcoal powder are granulated by a disc granulator to obtain primary spherical activated carbon microspheres. Then, the obtained material was activated at 900° C. for 24 hours in an atmosphere of water vapor and carbon monoxide, washed with 0.1 mol / L hydrochloric acid and water, and dried to obtain high specific surface area carbon microspheres.
[0065] See the particle photos Figure 4 , It can be seen from the figure that the diameter of the carbon microspheres with high specific surface area is 3~5mm, the sphericity of the particles is high, and the particles are uniform.
Example Embodiment
[0066] Example 3
[0067] Mix 15 grams of petroleum coke powder, 8 grams of KOH, 12 grams of sucrose and 260 grams of water, and stir at 50°C for 1 hour. The solution is dried and granulated by a spray dryer. The spray drying inlet temperature is 230°C, and the outlet temperature is 70~150°C; the obtained material is activated at 900°C under a water vapor and hydrogen atmosphere for 4 hours, and subjected to 0.1mol / L After washing with hydrochloric acid and water, and drying, carbon microspheres with high specific surface area are obtained.
PUM
Property | Measurement | Unit |
---|---|---|
Size | aaaaa | aaaaa |
Diameter | aaaaa | aaaaa |
Specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap