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

Modified cordierite porous ceramic material and preparation method and application thereof

A technology of porous ceramics and cordierite, applied in chemical instruments and methods, silicates, inorganic chemistry, etc., can solve the problems of high cost and poor removal ability of low-concentration heavy metal ions, and achieve low production cost and high mechanical strength. , The effect of wide adaptability of chemical adsorption

Inactive Publication Date: 2019-10-01
CHANGAN UNIV
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects and deficiencies in the prior art, the present invention provides a modified cordierite porous ceramic material and its preparation method and application, which overcomes the high cost of existing heavy metal ion adsorbents and the poor ability to remove low-concentration heavy metal ions, etc. defect

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
  • Modified cordierite porous ceramic material and preparation method and application thereof
  • Modified cordierite porous ceramic material and preparation method and application thereof
  • Modified cordierite porous ceramic material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] This embodiment also provides a method for preparing a modified cordierite porous ceramic material, which specifically includes the following steps:

[0042] Step 1, weighing aluminum sulfate, silicon source and sulfate according to the formula, fully grinding, sieving, and regrinding to obtain a mixed powder; covering the obtained mixed powder on the cordierite ceramic block of the formula and heating to react;

[0043] Step 2, boiling the product obtained in Step 1 in a boiling water bath until the molten salt remaining on its surface is completely dissolved, then cooling, washing, and drying to obtain cordierite-mullite whiskers;

[0044] Step 3, in the cordierite-mullite whisker that step 2 obtains, add the solvent of formula quantity and silane coupling agent, carry out reaction;

[0045] In step four, the product obtained in step three is naturally cooled and washed to obtain a modified cordierite porous ceramic material.

[0046] The temperature rise rate of the...

Embodiment 1

[0059] This example provides a modified cordierite porous ceramic material and its preparation method. The modified cordierite porous ceramic material includes the following raw materials in parts by weight: 12 parts of aluminum sulfate, 3 parts of silicon source, 85 parts of molten salt, cordierite 10 parts, 80 parts of solvent and 10 parts of silane coupling agent.

[0060] The preparation method of the modified cordierite porous ceramic material, the method specifically includes the following steps:

[0061] Step one, the Al 2 (SO4) 3 18H 2 O was sintered in a muffle furnace at 400°C for 3 hours to remove crystal water to obtain anhydrous aluminum sulfate; weigh aluminum sulfate, diatomaceous earth and potassium sulfate according to the formula, fully grind, sieve, and regrind to obtain a mixed powder ; Cover the obtained mixed powder on the cordierite ceramic block with the formula amount at the bottom of the corundum crucible and heat it for reaction, raise it to 1000°...

Embodiment 2

[0067] This example provides a modified cordierite porous ceramic material and its preparation method. The difference between this example and Example 1 is that the modified cordierite porous ceramic material includes the following raw materials in parts by weight: 12 parts of aluminum sulfate, silicon 3 parts of source, 85 parts of molten salt, 20 parts of cordierite, 70 parts of solvent and 10 parts of silane coupling agent.

[0068] The difference between the preparation method of the modified cordierite porous ceramic material in this example and Example 1 is that in step 1: in the muffle furnace, the temperature is raised to 900°C at a rate of 5°C / min, and the temperature is kept at the highest temperature for 2h ; In step three, react at 60° C. for 24 hours; in step four, wash with absolute ethanol or acetone for 5 times.

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 discloses a modified cordierite porous ceramic material and a preparation method and application thereof. The modified cordierite porous ceramic material comprises the following raw materials in parts by weight: 10 to 20 parts of aluminum sulfate, 3 to 10 parts of silicon source, 75 to 85 parts of molten salt, 10 to 20 parts of cordierite, 70 to 80 parts of solvent, and 6 to 10 partsof silane coupling agent. The modified cordierite porous ceramic material is characterized in that the mullite whiskers are grown at the surface of the cordierite porous ceramic by a molten salt method, so as to increase the specific surface area and mechanical strength of the porous ceramic; the Al-OH and Si-OH are introduced to the surface of the cordierite porous ceramic, so as to provide a large amount of reaction active groups which can genreate alkoxy reaction further with the silane coupling agent, thereby grafting a large amount of -NH2 functional groups at the surface of the cordierite porous ceramic; by performing chelating reaction with heavy metal copper ions, the heavy metal copper ions in water can be effectively removed. The modified cordierite porous ceramic material has the advantages that the porosity is realized, the specific surface area is high, the mechanical strength is high, the absorbing property is high, and the suitability of chemical absorption is broad; the preparation method is simple, the production cost is low, and the reutilization rate is high.

Description

technical field [0001] The invention belongs to the technical field of environmental chemical applications, and in particular relates to a modified cordierite porous ceramic material and its preparation method and application. Background technique [0002] Current research on adsorbents mainly includes activated carbon, graphite, clay, chitosan, fly ash, seaweed, humic acid, agricultural waste, resin, bentonite, and microorganisms. High, difficult to recycle, poor ability to remove low-concentration heavy metal ions, lack of ion selectivity and other defects. In order to overcome these problems, and meet people's requirements for the recovery and reuse of specific heavy metals and the environment's demand for degradable adsorbent materials, the development of inexpensive, high adsorption capacity, high selectivity, renewable and environmentally friendly adsorbent materials is heavy metal ions. An important direction of adsorption research. Contents of the invention [00...

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
IPC IPC(8): C04B41/89B01J20/16C02F1/28C02F101/20
CPCC04B41/89C04B41/009C04B41/52B01J20/16C02F1/281C02F2101/20C04B35/195C04B41/5024C04B41/455C04B41/4905
Inventor 张瑶瑶王伟
Owner CHANGAN 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