Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-efficiency quick green preparation method of zeolite molecular sieve

A technology of zeolite molecular sieve and precursor solution, which is applied in molecular sieve and alkali exchange compound, molecular sieve and alkali exchange phosphate, chemical instrument and method, etc., can solve the problems of high requirement of reaction equipment, long synthesis cycle, long product crystallization time, etc. , to achieve the effect of low cost, extremely short synthesis cycle and fast product crystallization

Active Publication Date: 2019-08-23
SUZHOU UNIV
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this technology, the crystallization time of the product is long, the synthesis cycle is long, there are impurities in the synthesized product, and the reaction needs to be carried out at high temperature, and vapor pressure will be generated during the reaction process, so the requirements for the reaction equipment are high.

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
  • High-efficiency quick green preparation method of zeolite molecular sieve
  • High-efficiency quick green preparation method of zeolite molecular sieve
  • High-efficiency quick green preparation method of zeolite molecular sieve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The synthesis of embodiment 1Na-A type zeolite molecular sieve

[0033] (1) Precursor solution preparation: 6.11g of Na 2 SiO 3 9H 2 O was added to 10 g of deionized water, and heated in an oven at 60°C for 3-5 minutes to obtain a clear sodium silicate solution A. 2.5g NaAlO 2 Soluble in 10.0g H 2 O obtains the clarified sodium metaaluminate solution, then takes by weighing 4.7g NaOH and adds in the sodium metaaluminate solution to make solution B;

[0034] (2) Aging: Weigh 8.0 g of tetrapropylammonium bromide and add it to solution A, then add solution B dropwise to solution A under stirring, and then stir the mixture at room temperature for 12 hours of aging.

[0035] (3) Electron beam irradiation: Use a 1mL pipette to pipette 0.5mL of the cured mixed solution into a 3mL glass scintillation vial, and then place the sample under electron accelerator irradiation with an absorbed dose of 500kGy and an irradiation time of 800s. The white solid produced after irradia...

Embodiment 2

[0036] The synthesis of embodiment 2 Na-A type zeolite molecular sieve

[0037] The Na-A type zeolite molecular sieve was prepared according to the method of Example 1, except that the absorbed dose was 700 kGy and the irradiation time was 1120 s. Adopt polycrystalline powder diffractometer (PXRD) to determine the crystal structure of product, test result is as follows figure 2 shown.

Embodiment 3

[0038] The synthesis of embodiment 3 Na-A type zeolite molecular sieve

[0039] The Na-A type zeolite molecular sieve was prepared according to the method of Example 1, except that the absorbed dose was 1200 kGy, and the irradiation time was 1920 s. Adopt polycrystalline powder diffractometer (PXRD) to determine the crystal structure of product, test result is as follows image 3 shown.

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

No PUM Login to View More

Abstract

The invention relates to a preparation method of a zeolite molecular sieve. The method comprises the following steps: uniformly mixing at least one of a silicon source, an aluminum source and a phosphorus source, a basic substance, a templating agent and water to obtain a zeolite molecular sieve precursor solution, wherein the zeolite molecular sieve precursor solution comprises at least the silicon source; performing curing on the zeolite molecular sieve precursor solution at 20-30 DEG C for 10-15 h; and performing ionizing radiation on the cured solution, washing the obtained solid to be neutral, and performing drying to obtain the zeolite molecular sieve. The preparation method provided by the invention is green and simple and has extremely-low costs; and under irradiation of an ionizing radiation source, the synthetic cycle of the zeolite molecular sieve is short, heating is not needed in the preparation process, the energy consumption is reduced, and a high-pressure system is avoided.

Description

technical field [0001] The invention relates to the technical field of molecular sieve preparation, in particular to an efficient, fast and green preparation method for zeolite molecular sieves. Background technique [0002] Zeolite molecular sieve refers to a kind of inorganic crystal material with regular pore structure, fixed direction and definite pore size. The main components include aluminum, silicon, oxygen, phosphorus and other metal cations. The structure is generally composed of TO 4 (T is mainly Al, Si, P) tetrahedral three-dimensional network skeleton structure. According to the composition of skeleton elements, zeolite molecular sieves can be divided into silica-alumina zeolite molecular sieves, aluminum-phosphorus zeolite molecular sieves, all-silica zeolite molecular sieves, etc. Due to its regular pore size distribution and rich topological structure, zeolite molecular sieves have the properties of adsorption, catalysis, ion exchange, acid and alkali resist...

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 Applications(China)
IPC IPC(8): C01B39/16C01B39/22C01B39/54C01B39/04
CPCC01B39/16C01B39/22C01B39/54C01B39/04C01P2002/72C01B39/205C01B39/026C01B39/145C01B39/48B01J37/34
Inventor 王殳凹张明星陈俊畅
Owner SUZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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