High-specific-surface-area vanadium-zinc-series modified denitration catalyst and preparation method
A high specific surface area, denitrification catalyst technology, applied in the field of high specific surface area vanadium-zinc modified denitration catalyst and its preparation, can solve the problems of narrow operating temperature range, poor low temperature activity, serious pollution, etc., to save production costs and increase specific Effect of Surface Area and Uniformity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0031] [1] Mix 30g of ammonium metatungstate and 17g of zinc nitrate to make 150ml of stable solution.
[0032] [2] Take 500g of metatitanic acid, add 20g of carboxymethylcellulose as a molding aid, 5g of polyacrylamide as an adhesive, 30g of glass fiber as a toughening agent, 15g of glycerin as a humectant, and 10g of flour as a pore-enlarging agent. Then add 150ml of the solution prepared in step [1], knead evenly, extrude after stale for 24 hours, then gradually heat up and dry from 30°C, after 18h, heat up to 90°C, take it out and put it in a muffle furnace for roasting at 580°C 2h, prepared a1.
[0033] [3] Measure the water absorption rate of a1 to be 32.5%.
[0034] [4] Weigh 6.5g of ammonium metavanadate, 17g of zinc nitrate, and 9g of oxalic acid, dissolve them in 135g of water, stir until they are all dissolved, and after standing for a period of time to stabilize, put a1 in the stable solution, stir and dip for 2 hours, and wait for complete dipping Afterwards, th...
Embodiment 2
[0037] [1] Add H to 1kg of metatitanic acid 2 o 2 (30wt%) 280g, stir at 30°C for 20min, gradually raise the temperature to 45°C, continue to stir for 20min, then raise the temperature to 60°C, continue stirring for 20min, then raise the temperature to 90°C, dry for 2h and crush to 200 mesh for use.
[0038] [2] Mix 30g of ammonium metatungstate and 17g of zinc nitrate to prepare 150ml of a stable solution.
[0039] [3] Take 500g of the pulverized material in step [1], add 20g of carboxymethylcellulose as a molding aid, 5g of polyacrylamide as an adhesive, 30g of glass fiber as a toughening agent, 15g of glycerin as a humectant, and expand pores Add 10g of powder flour, then add 150ml of the solution prepared in step [2], knead evenly, extrude after stale for 24 hours, then gradually increase the temperature from 30°C to dry, after 18 hours, heat up to 90°C, take it out and put it in the muffle furnace Calcined at 580°C for 2h to obtain a2.
[0040] 【4】Measuring the water ab...
Embodiment 3
[0044] [1] Mix 60g of ammonium metatungstate and 34g of zinc nitrate to prepare 169ml of stable solution.
[0045] [2] Take 400g of metatitanic acid, add 105g of metasilicate, stir until it is completely uniform, add molding aid carboxymethyl cellulose = 20.2g, add adhesive polyacrylamide 5.05g, add toughening agent glass fiber 30.3g, add 15.15g of moisturizing agent glycerin, add 10.1g of pore-enlarging agent flour, then add 169ml of the solution prepared in step [1], knead evenly, extrude after stale for 24 hours, and then gradually heat up and dry from 30°C. After 15 hours, the temperature was raised to 90°C, taken out and placed in a muffle furnace for 3 hours at 520°C to obtain a3.
[0046] [3] Measure the water absorption rate of a3 to be 30.3%.
[0047] [4] Weigh 3.25g of ammonium metavanadate, 17g of zinc nitrate, and 4.5g of oxalic acid, dissolve them in 121g of water, stir until they are all dissolved, and after standing for a period of time to stabilize, put a3 in ...
PUM
Property | Measurement | Unit |
---|---|---|
water absorption | aaaaa | aaaaa |
water absorption | aaaaa | aaaaa |
water absorption | 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