ZSM-5 and ZSM-11 eutectic zeolite molecular sieve and preparation method and application thereof
A technology of ZSM-11 and ZSM-5, which is applied in ZSM-5 and ZSM-11 eutectic zeolite molecular sieves and their preparation and application fields, can solve problems that have not been reported, and achieve good economical and technical properties, good reaction performance, and improved The effect of raw material adaptability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0037] Put 0.48g of aluminum sulfate crystals with a content of 99.9%, 3g of sodium hydroxide, 1g of ZSM-5 molecular sieve crystal seeds, and 30g of deionized water into the reaction kettle, and stir until uniform at room temperature to obtain the working solution 1.
[0038] Add 4.2g of tetrabutylammonium bromide (99.8wt%, the same below), 3.4g of sodium hydroxide and 10g of deionized water into a beaker, mix until uniform, and obtain working solution 2. Under constant stirring, add working solution 2 to working solution 1 until the mixture is uniform. After half an hour, under constant stirring, add 30g of silica sol (SiO 2 40%,Na 2 O0.4%,H 2 O59.6%), continue to stir at room temperature for 2 hours until the mixture is uniform. Put the reactor into an oven at 110°C for 48 hours of crystallization, and then continue to place it in an oven at 180°C for 12 hours of crystallization. The material after the crystallization reaction is rapidly cooled to room temperature, the s...
Embodiment 2
[0040] Synthetic raw material is constant according to example 1, and ZSM-5 seed crystal addition amount is increased to 2g, and organic template is tetrabutyl ammonium hydroxide, and crystallization condition is constant. The material after the crystallization reaction is rapidly cooled to room temperature, the solid and the mother liquor are separated, washed with deionized water to a pH of 8-9, and dried at 100° C. for 10 hours to obtain a molecular sieve powder. After the final product is tested by X-ray diffraction, the mass fraction of ZSM-5 in the ZSM-5 / ZSM-11 eutectic molecular sieve is about 50%, and the particle size is about 1-2 μm.
Embodiment 3
[0042] Synthetic raw materials are kept unchanged according to Example 1, the addition amount of ZSM-5 seed crystals is increased to 3g, the aluminum source is aluminum hydroxide, and the crystallization conditions are unchanged. The material after the crystallization reaction is rapidly cooled to room temperature, the solid and the mother liquor are separated, washed with deionized water to a pH of 8-9, and dried at 100° C. for 10 hours to obtain a molecular sieve powder. After the final product is tested by X-ray diffraction, the mass fraction of ZSM-5 in the ZSM-5 / ZSM-11 eutectic molecular sieve is about 70%, and the particle size is about 3-5 μm.
PUM
Property | Measurement | Unit |
---|---|---|
pore size | aaaaa | aaaaa |
particle size | aaaaa | aaaaa |
particle 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