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

Preparation method of high-specific-surface-area ceramic hollow spheres

A technology of ceramic hollow spheres and high specific surface area, applied in ceramic products, applications, household appliances, etc., can solve problems such as poor use effect, and achieve the effect of better and smoother sphere surface, simple production process, and good application and promotion value.

Inactive Publication Date: 2021-03-19
北京华夏建龙矿业科技有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing ceramic hollow spheres with a high specific surface area, which has the advantages of simple production process and high specific surface area, and solves the problems of poor application effects in the fields of loading, catalysis and sustained release.

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
  • Preparation method of high-specific-surface-area ceramic hollow spheres
  • Preparation method of high-specific-surface-area ceramic hollow spheres
  • Preparation method of high-specific-surface-area ceramic hollow spheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Prepare a water-based slurry with a solid phase content of 30wt% using aluminum sol nanoparticles as a raw material;

[0029] 2) Adding short-chain amphiphile-modified particles with a specific gravity of 0.6 wt% of the sol suspension to the water-based slurry, adjusting the pH of the sol suspension to 3.8, so that the surface of the particles can be hydrophobically modified;

[0030] 3) mixing the prepared water-based slurry with octane, and stirring at a speed of 300rpm by a stirrer to obtain an ultra-stable microemulsion;

[0031] 4) Put the prepared microemulsion into a dropper, and add it dropwise to an alkaline solution with a pH of 10.5 to obtain gelled emulsion droplets. The publication number is CN102557594B Chinese invention patent for a high-strength low-density ceramic In the hollow sphere and its preparation method, carbon black, flour and water need to be mixed in a mass ratio of 3:5:2, mixed in a mud mixer, and then extruded in an extruder to obtain a ...

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
diameteraaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of ceramic hollow spheres, and discloses a preparation method of the ceramic hollow spheres with high specific surface area, which comprises the followingsteps: 1) preparing water-based slurry with solid phase content of 30wt% by using alumina sol nanoparticles as a raw material; 2) adding short-chain amphiphilic molecule modified particles with the specific gravity of a sol suspension of 0.6 wt% into the water-based slurry, and adjusting the pH value of the sol suspension to 3.8; and 3) mixing the prepared water-based slurry with octane, and stirring the mixture at a speed of 300 rpm in a stirrer. The preparation method has the advantages that the water-based slurry is mixed with a certain proportion of octane, and then the super-stable microemulsion is obtained through mechanical stirring; the prepared microemulsion is put into a dropper and dropwise added into an alkaline solution, gelled emulsion drops are obtained, the hollow sphere material can be obtained after the gelled emulsion drops are dried and sintered. The specific surface area of the hollow sphere material reaches up to 200-410 m2 / g; and a plurality of spherical pore structures are arranged in the catalyst, so that the use effect of the catalyst in the fields of loading, catalysis, slow release and the like can be improved to a large extent.

Description

technical field [0001] The invention relates to the technical field of ceramic hollow spheres, in particular to a preparation method of high specific surface area ceramic hollow spheres. Background technique [0002] Ceramic hollow spheres have attracted great interest in the past few decades due to their wide range of applications. This special material can be applied in the fields of loading, catalysis, slow release and so on. At present, the preparation of ceramic hollow spheres mainly includes the template method (hard template and soft template) and the template-free method, also known as the Ostwald ripening method. However, the above-mentioned methods have their own limitations, such as low yield, long production cycle, need for special equipment, complicated preparation process, etc. It is still challenging to develop synthetic processes for low-cost, short-cycle, and easy-to-mass-produced ceramic hollow spheres. With the rapid development of modern industry, espe...

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): C04B38/06C04B35/10C04B35/624
CPCC04B38/0645C04B35/10C04B35/624
Inventor 兰天苑占永鲍艳华王旭东池宗鹏牛艳宁赵万伟
Owner 北京华夏建龙矿业科技有限公司
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