Modification method for silicon dioxide aerogel
A technology of silica and airgel, applied in chemical instruments and methods, inorganic chemistry, silicon compounds, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0016] According to a specific embodiment of the present invention, the specific steps of dehydration modification are as follows:
[0017] 1. Filter or press-filter the synthesized or purchased silica wet gel into a wet cake with 80-95% (mass) water content.
[0018] 2. Immerse the wet cake in the C4-C10 aliphatic alcohol, and the volume ratio of the amount of alcohol added to the water content in the wet cake is: (0.1-10):1. Stir the multiphase system evenly.
[0019] 3. Continuously stir and heat the multi-phase system. When the azeotropic temperature of water and alcohol is reached, water and alcohol are azeotropically distilled out in a constant volume ratio. The temperature of the system remains unchanged, and the liquid level is always higher than the solid phase during heating. If it is not enough, continue to add alcohol. After condensing the obtained steam and standing for stratification, the oil phase can be recycled.
[0020] 4. When the temperature of the system rises...
PUM
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