Supercharge Your Innovation With Domain-Expert AI Agents!

Synthesis of high crystallinity ets-10 zeolite molecular sieve with tunable morphology and pore structure

A technology of zeolite molecular sieve and synthesis method, which is applied in the directions of crystalline aluminosilicate zeolite, molecular sieve and alkali exchange compound, molecular sieve catalyst, etc., can solve the problems of destroying structural integrity, reducing crystallinity of zeolite molecular sieve, etc., and improving the conversion rate of raw materials , Guaranteed yield, low price effect

Active Publication Date: 2020-12-29
CHANGZHOU INST OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, it is easy to reduce the crystallinity of the zeolite molecular sieve itself and destroy the structural integrity during the synthesis process of the multi-level porous ETS-10 zeolite molecular sieve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Synthesis of high crystallinity ets-10 zeolite molecular sieve with tunable morphology and pore structure
  • Synthesis of high crystallinity ets-10 zeolite molecular sieve with tunable morphology and pore structure
  • Synthesis of high crystallinity ets-10 zeolite molecular sieve with tunable morphology and pore structure

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0043] Take 16mL of water glass and stir it at room temperature for 10min, then fully mix it with 2mL of IL-LnNa solution, stir for 1h, then add 20mL of H 2 O and continue to stir for 20min, then add 6.9g NaCl and 2.8g KF successively and stir for 1h respectively, finally add 1.3g P25, stir for 2h, put it into a hydrothermal reaction kettle and seal it, and put it in an oven at 230°C for 60 hours to crystallize . The molar ratio of each material in the system Na 2 O:K 2 O:TiO 2 : SiO 2 :IL-LnNa:H 2 O is recorded as 3.5:1.6:1.0:5.5:0.043:181. The texture properties of the obtained hierarchically porous ETS-10 zeolite are shown in Table 1.

experiment example 2

[0045] Take 16mL water glass and stir at room temperature for 10min, then add 20mL H 2 O Stir evenly, then add 2mL IL-LnNa solution after 20min and mix well, after stirring for 1h, add 6.9g NaCl and 2.8g KF in turn, after each stirring for 1h, add 1.3g P25, continue stirring for 2h, put it into a hydrothermal reaction kettle and seal , placed in an oven at 230°C for 60 hours for crystallization. The molar ratio of each material in the system Na 2 O:K 2 O:TiO 2 : SiO 2 :IL-LnNa:H 2 O is recorded as 3.5:1.6:1.0:5.5:0.043:181. The texture properties of the obtained hierarchically porous ETS-10 zeolite are shown in Table 1.

experiment example 3

[0047] Take 16mL water glass and stir at room temperature for 10min, then add 20mL H 2 O and stir evenly, after 20min, add 6.9gNaCl and 2.8g KF successively, stir for 1h each, then add 2mL IL-LnNa solution and mix well, after stirring for 2h, add 1.3gP25, continue stirring for 2h, put it into a hydrothermal reaction kettle and seal it, Stand in an oven at 230°C for 60 hours for crystallization. The molar ratio of each material in the system Na 2 O:K 2 O:TiO 2 : SiO 2 :IL-LnNa:H 2 O is recorded as 3.5:1.6:1.0:5.5:0.043:181. The texture properties of the obtained hierarchically porous ETS-10 zeolite are shown in Table 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a synthesis method of high crystallinity ETS-10 zeolite molecular sieve with adjustable morphology and pore structure, and belongs to the field of catalysts. The synthesis method uses water glass as the silicon source, P25 (Degussa, gas phase titanium dioxide) as the titanium source, and sodium lignosulfonate modified with 1-ethyl-3-methylimidazole chloride as the additive, and is prepared by hydrothermal synthesis Hierarchical pore ETS-10 zeolite was obtained. The synthesis method of the present invention is simple, the raw materials are cheap and the equipment requirements are not high. The synthesized hierarchical pore ETS-10 zeolite has high crystallinity, which not only promotes the effective adjustment of the pore structure, morphology and surface properties, especially as a When the catalyst is used, it shows unique molecular recognition characteristics for the biomass hydrogenation reaction, which greatly improves the catalytic efficiency of the corresponding catalytic process and the selectivity of the target product.

Description

technical field [0001] The invention relates to a method for synthesizing a high-crystallinity ETS-10 zeolite molecular sieve with adjustable morphology and pore structure, and belongs to the field of catalysts. Background technique [0002] The development and design of tailor-made zeolite catalysts have always been faced with the challenges of their inherent microporous characteristics and stability in aqueous solution, as well as the corresponding composition, morphology and acid / alkaline adjustment treatment. It is found through research that the introduction of secondary channels can not only effectively solve the problem of contact and diffusion limitation of active sites, but also promote the transformation of the morphology and other physical and chemical properties of zeolite molecular sieves. Therefore, a large number of bottom-up and bottom-up methods for the synthesis of hierarchically porous zeolite molecular sieves have emerged, but they all focus on FAU and MF...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01B39/04C01B39/48B01J29/89B01J31/02B01J31/06B01J35/10
CPCC01B39/04C01B39/48B01J29/89B01J31/0281B01J31/06C01P2002/72C01P2004/03C01P2004/04B01J35/60
Inventor 向梅张芬张微吴泽颖张震威朱文豪仝林昌
Owner CHANGZHOU INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com