Method of preparing superfine micro-particle and nano granule
A nanoparticle and ultrafine particle technology, applied in the direction of nanostructure manufacturing, chemical instruments and methods, nanotechnology, etc., can solve the problems of unfavorable industrial production, high technical equipment requirements, and low purity of nanoparticles, and achieve easy sedimentation and washing and Filtration, uniform and single shape, high purity effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0037] Example one:
[0038] 1L of 0.5mol / L yttrium nitrate solution, add 1L of mixed solution of 1mol / L of NaOH and 0.5mol / L of KOH at 25℃ as precipitating agent, among which Na + , K + The total metal ion concentration is 1.5 mol / L, and the amount of precipitating agent added is 100% of the theoretical amount. Add 240g of NaOH solid and 336g of KOH solid to make the system OH - It is 6mol / L, heated to 150°C for 2 hours, filtered clean water to wash to neutrality, dried at 80°C for 1 hour, and burned at 600°C for 1 hour. Obtained yttrium oxide particles, D50=300nm.
Example Embodiment
[0039] Embodiment two:
[0040] After mixing 1L of 2mol / L lanthanum chloride solution with 1L of 0.5mol / L cerium chloride solution, add 2mol / L ammonia water and 2mol / L ammonium bicarbonate mixed solution 2.8L to precipitate at 80℃. 4 + The total ion concentration is 4mol / L, and the amount of precipitant added is 150% of the theoretical amount. Add 768g of NaOH solid to make the system OH -It is 4mol / L, heated to 130°C for 2 hours, filtered clean water to wash until neutral, dried at 150°C for 4 hours, and burned at 900°C for 2 hours. The lanthanum cerium oxide particles were obtained with D50=600nm.
Example Embodiment
[0041] Embodiment three:
[0042] 0.5mol / L samarium europium gadolinium chloride solution 1L, add 0.5mol / L ammonium carbonate and 0.5mol / L sodium carbonate mixed solution 2.25L precipitation at 95℃, of which Na + , NH 4 + The total ion concentration is 2mol / L, and the amount of precipitant added is 300% of the theoretical amount. Add 190g of 35wt% liquid caustic soda to make the system OH - It is 0.5mol / L, heated to 95°C for 10 hours, filtered clean water to wash to neutrality, dried at 220°C for 10 hours, and burned at 1000°C for 10 hours. Samarium europium gadolinium oxide particles with D50=1.2 μm are obtained.
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