Catalyst used in preparation of (methyl) acrylic aldehyde and (methyl) acrylic acid
A catalyst, acrolein technology, applied in the direction of hydrocarbon oxidation to oxygenate, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of low utilization rate, impact, large particle size, etc. question
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0018] [Catalyst preparation]
[0019] In 5000 mL of deionized water, dissolve 1560 g of ammonium paramolybdate and 8 g of potassium nitrate. Separately, in 1450 mL of deionized water, 1400 g of cobalt nitrate, 480 g of iron nitrate, 520 g of nickel nitrate, 50 mL of concentrated nitric acid, and 550 g of bismuth nitrate were dissolved. Add this solution dropwise to the solution in which ammonium paramolybdate and potassium nitrate are dissolved, and control the pH value of the slurry to 2.2. The obtained slurry was dried at 155° C. for 12 hours, and fired at 250° C. for 6 hours to obtain active phase powder.
[0020] The above-mentioned active phase powder is mixed with molybdenum oxide nanowires with a diameter of 3 to 5 nanometers and a length of 4 to 6 microns according to a weight ratio of 97:3, and then adding 28wt% silicon, 2wt% graphite, and 2wt% ( SiO 2 ) silica sol, which is formed into cylindrical hollow particles with an outer diameter of 5 mm, an inner diameter...
Embodiment 2
[0024] The preparation of the catalyst is the same as in Example 1, except that during the preparation process, the active phase powder and iron oxide nanowires with a diameter of 3 to 4 nanometers and a length of 7 to 10 microns are mixed according to a weight ratio of 95:5, and then the total weight of the catalyst is added. 25wt% silicon, 2wt% graphite, 2wt% (SiO 2 ) silica sol, which is formed into cylindrical hollow particles with an outer diameter of 5 mm, an inner diameter of 2 mm, and a length of 4 mm, and fired at 490° C. for 5 hours to obtain a finished catalyst.
[0025] The evaluation of the catalyst was the same as in Example 1, and the evaluation results are shown in Table 1.
Embodiment 3
[0027] The preparation of the catalyst is the same as in Example 1, except that during the preparation process, the active phase powder and the alumina nanowires with a diameter of 10 to 15 nanometers and a length of 20 to 25 microns are mixed according to a weight ratio of 90:10, and then the total weight of the catalyst is added. 10wt% silicon oxide, 2wt% graphite, 2wt% (SiO 2 ) silica sol, which is formed into cylindrical hollow particles with an outer diameter of 5 mm, an inner diameter of 2 mm, and a length of 4 mm, and fired at 510° C. for 5 hours to obtain a finished catalyst.
[0028] The evaluation of the catalyst was the same as in Example 1, and the evaluation results are shown in Table 1.
PUM
Property | Measurement | Unit |
---|---|---|
diameter | aaaaa | aaaaa |
length | 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