Hydrated alumina molded matter and preparation method thereof, alumina molded matter and applications of hydrated alumina molded matter and alumina molded matter
A technology of alumina moldings and hydrated alumina, which is applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve problems such as unfavorable environmental protection and unhealthy operators, and achieve environmental benefits Protection, reduction of impact on operator health, effect of good absorption properties
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0068] (1) 100.0g of pseudo-boehmite powder (purchased from Sinopec Catalyst Changling Branch, with a dry basis content of 69.5% by weight), 4.0g of methylcellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 3.0g Tianjing powder, 20.0g ultra-stable Y molecular sieve (purchased from Sinopec Catalyst Changling Branch, unit cell constant is Dry basis content is 95% by weight, Na 2 The content of O is 0.05% by weight) and 85g of deionized water are mixed evenly. The resulting mixture is fed into an extruder and extruded to obtain a wet strip. The extruded wet strip was placed in an oven and dried at 150° C. for 12 hours to obtain the hydrated alumina molding of the present invention. The radial crushing strength, water absorption rate and δ value of the obtained moldings were measured, and the results are listed in Table 1.
[0069] (2) Dissolve 4.71 g of basic nickel carbonate (NiO content is 51% by weight), 12.0 g of molybdenum oxide and 2.24 g of phosphoric acid ...
Embodiment 2
[0089] (1) In a 2L reaction tank, add 2000mL of aluminum sulfate solution and sodium metaaluminate solution (Al 2 o 3 content of 200g / L, caustic coefficient of 1.58) for precipitation reaction, the reaction temperature is 50°C, the pH value is 6.0, and the reaction residence time is 15 minutes; the obtained slurry is filtered with a vacuum filter. Add 20L of deionized water (at a temperature of 40±5°C) to the filter cake to rinse the filter cake for about 60 minutes. Add the washed filter cake into 1.5L deionized water and stir to form a slurry, then pump the slurry into the spray dryer for drying, control the outlet temperature of the spray dryer within the range of 100-110°C, and the material drying time is 2 minutes to obtain hydrated alumina, wherein, Al 2 o 3 The content is 63% by weight, and it is determined to be amorphous by XRD analysis.
[0090] (2) 50.0g of pseudoboehmite powder (purchased from Sinopec Catalyst Changling Branch, with a dry basis content of 69.5%...
Embodiment 3
[0094] (1) 60.0g of pseudoboehmite (purchased from Sinopec Catalyst Changling Branch, with a dry basis content of 69.5% by weight), 40.0g of gibbsite (purchased from Guangxi Pingguo Aluminum Company, with a dry basis content of 64.5% by weight), 1.0g methyl cellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 2.0g hydroxypropyl methylcellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 3.0g kale powder, 30.0 g NaY molecular sieve (purchased from Sinopec Qilu Catalyst Company, unit cell constant is Dry basis content is 96% by weight) and 120g of deionized water are stirred evenly. The resulting mixture is fed into an extruder and extruded to obtain a wet strip. The obtained wet strip was placed in an oven and dried at 80° C. for 12 hours to obtain the hydrated alumina molding of the present invention. The radial crushing strength, water absorption rate and δ value of the obtained moldings were measured, and the results are listed in Table 1.
[0095] (...
PUM
Property | Measurement | Unit |
---|---|---|
water absorption | aaaaa | aaaaa |
diameter | aaaaa | aaaaa |
length | 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