Method for continuously producing pseudoboehmite
A pseudo-boehmite and sodium metaaluminate technology, applied in the direction of alumina/aluminum hydroxide, can solve the problems of low productivity, high labor intensity, and large fluctuations in product quality, and achieve high production efficiency and low labor intensity , The effect of stable product quality
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] The sodium metaaluminate solution with an alumina concentration of 15.3g / L is continuously added to the reaction device through a pump, and a mixed gas of air and carbon dioxide is introduced. The volume percentage of carbon dioxide in the mixed gas is 30%, and the pressure of the mixed gas is 0.1MPa, so that the sodium metaaluminate solution forms a strong liquid flow and fully mixes with carbon dioxide gas to produce many and delicate bubbles; control the flow ratio of the mixed gas and sodium metaaluminate solution to 10, so that the temperature of the slurry generated by the reaction When the temperature is 25°C and the pH value is 9.5, the gelation is stopped; the slurry obtained from the reaction is transported to the aging tank through a pipeline that is long enough and has multiple U-shaped bends, and the temperature of the slurry is raised in the aging tank, and the aging temperature is 90°C ; Filter the aged slurry, wash the filter cake until neutral; dry the w...
Embodiment 2
[0032] The sodium metaaluminate solution with an alumina concentration of 23.5g / L is continuously added to the reaction device through a pump, and a mixed gas of air and carbon dioxide is introduced. The volume percentage of carbon dioxide in the mixed gas is 40%, and the pressure of the mixed gas is 0.12MPa, so that the sodium metaaluminate solution forms a strong liquid flow and fully mixes with carbon dioxide gas to produce many and delicate bubbles; control the flow ratio of the mixed gas and sodium metaaluminate solution to 30, so that the temperature of the slurry generated by the reaction When the temperature is 30°C and the pH value is 9.5, the gelation is stopped; the slurry obtained from the reaction is transported to the aging tank through a pipeline that is long enough and has multiple U-shaped bends, and the temperature of the slurry is raised in the aging tank, and the aging temperature is 95°C ; Filter the aged slurry, and wash the filter cake until neutral; dry ...
Embodiment 3
[0034] The sodium metaaluminate solution with an alumina concentration of 35.3g / L is continuously added to the reaction device through a pump, and a mixed gas of air and carbon dioxide is introduced. The volume percentage of carbon dioxide in the mixed gas is 50%, and the pressure of the mixed gas is 0.15MPa, so that the sodium metaaluminate solution forms a strong liquid flow and fully mixes with carbon dioxide gas to produce many and delicate bubbles; control the flow ratio of the mixed gas and sodium metaaluminate solution to 40, so that the temperature of the slurry generated by the reaction When the temperature is 35°C and the pH value is 10, the gelation is stopped; the slurry obtained from the reaction is transported to the aging tank through a pipeline that is long enough and has multiple U-shaped bends, and the temperature of the slurry is raised in the aging tank, and the aging temperature is 100°C ; Filter the aged slurry, and wash the filter cake until neutral; dry ...
PUM
Property | Measurement | Unit |
---|---|---|
specific surface area | aaaaa | aaaaa |
volume ratio | aaaaa | aaaaa |
volume ratio | 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com