Micropore alumina and mullite ceramic separation film supporting body and preparation method thereof
A ceramic separation membrane and mullite technology, applied in the field of ceramic materials, can solve the problems of high price, low mechanical strength and high firing temperature, and achieve the effects of low cost, high mechanical strength and low firing temperature
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0024] Get by weight percentage: 67wt% aluminum hydroxide fine powder (Al 2 o 3 content of 65wt%), 25wt% kyanite fine powder (Al 2 o 3 Content is 50wt%) and 7wt% of calcium aluminate cement, 0.7wt% of sodium carbonate and 0.3wt% of carboxymethyl cellulose as raw materials, mixed uniformly in a mixer; plus 60wt% of the sum of the weight percentages of the above raw materials water, stirred to make a uniform suspension slurry; pour the slurry into the mold, and let it stand at room temperature for 48 hours until it solidified and formed to obtain a green body; after the green body was demolded, put it into an electric blast drying oven at 80~110°C Dry in medium for 24 hours, put the dried sample into a sintering furnace, raise the temperature to 1550°C at 3.5°C / min and keep it warm for 3h to obtain the microporous corundum-mullite ceramic separation membrane support.
[0025] After testing, the apparent porosity of the microporous corundum-mullite ceramic separation membrane ...
Embodiment 2
[0027] Take by weight percentage: 10wt% fused white corundum powder (Al 2 o 3 content of 98.5wt%), 60wt% industrial alumina powder (Al 2 o 3 content of 98wt%), 14wt% kaolin powder (Al 2 o 3 content of 38wt%), 15wt% of ρ-Al 2 o 3 and 1wt% sodium carbonate as raw materials, mix evenly in a mixer; add 50wt% water of the sum of the weight percentages of the above raw materials, and stir to make a uniform suspension slurry; inject the slurry into the mold and let it stand at room temperature After 48 hours of solidification and molding, the green body was obtained; after the green body was demoulded, it was placed in an electric blast drying oven at 110°C to dry for 24 hours; Keep warm for 3 hours to obtain the microporous corundum-mullite ceramic separation membrane support body.
[0028] After testing, the apparent porosity of the microporous corundum-mullite ceramic separation membrane support obtained in this example is 45.3%, the compressive strength is 87.8MPa, the ave...
Embodiment 3
[0030] Take by weight percentage: 30wt% fused white corundum powder (Al 2 o 3 content of 98.5wt%), 44wt% industrial alumina powder (Al 2 o 3 content of 96wt%), 5wt% of α-Al 2 o 3 Micropowder (Al 2 o 3 Content is 98wt%, average particle size 2μm), 10wt% andalusite powder (Al 2 o 3 content is 56wt%), 10wt% silica sol, 0.5wt% acrylamide and 0.5wt% polyacrylamide as raw materials, and mix them evenly in a mixer; add 60wt% of the sum of the weight percentages of the above raw materials. Water, Stir to make a uniform suspension slurry; inject the slurry into the mold, and let it stand at room temperature for 24 hours until it is solidified and formed to obtain a green body; after the green body is demoulded, put it in an electric blast drying oven at 110°C to dry for 48 hours; The dried sample was put into a sintering furnace, and the temperature was raised to 1600°C at 4°C / min and kept for 3 hours to obtain a microporous corundum-mullite ceramic separation membrane support....
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
compressive strength | aaaaa | aaaaa |
pore size | 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