Unlock instant, AI-driven research and patent intelligence for your innovation.

Filtering ceramic carrier and preparation method thereof

A technology for filtering ceramics and carriers, which is applied in the field of ceramic manufacturing, and can solve the problems that lepidolite roasting and impregnating slag cannot be effectively used, and achieve the effects of increasing stiffness, improving porosity, and good filtration performance

Inactive Publication Date: 2020-01-10
江西九岭锂业股份有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a filter ceramic carrier and a preparation method to solve the technical problem that the existing lepidolite roasting and impregnating slag cannot be effectively utilized

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
  • Filtering ceramic carrier and preparation method thereof
  • Filtering ceramic carrier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The present invention also provides a method for preparing a filter ceramic carrier, comprising the steps of:

[0027] Step S1, mixing 15-25 parts by mass of ceramic clay, 70-85 parts by mass of aluminum oxide, and 2-5 parts by mass of lithium-containing additives, and grinding them into powdery raw materials;

[0028] Specifically, 15-25 parts by mass of ceramic clay, 70-85 parts by mass of aluminum oxide, and 2-5 parts by mass of lithium-containing additives are mixed and ground into a powdery raw material with a particle size of 50-200 mesh. The lithium-containing additive is spodumene. Lithium carbonate can provide lithium oxide. Lithium oxide has a strong fluxing ability, which plays a role in fluxing and cooling ceramics; at the same time, lithium carbonate produces carbon dioxide to promote the generation of pores.

[0029] In this embodiment, the Al2O3 is nano-scale Al2O3, so that the flexural strength and fracture toughness of the filter ceramic carrier can be...

Embodiment 1

[0035] Get 20g of ceramic mud, 77g of Al2O3, 3g of spodumene and mix it, and grind it into a particle size of 100 mesh powdery raw materials;

[0036] Roast the powdery raw material at 1300°C, put it into ultrapure water to cool, add anion adsorption resin for adsorption for 25 minutes, wash it with ultrapure water until the cleaning solution is neutral, and dry it to make the filter ceramic carrier.

Embodiment 2

[0038] Get 15g of ceramic mud, 70g of Al2O3, and 2g of spodumene, mix them, and grind them into powdery raw materials with a particle size of 50 mesh;

[0039] Roast the powdery raw material at 1250°C, put it into ultrapure water to cool, add anion adsorption resin for adsorption for 25 minutes, wash with ultrapure water until the cleaning solution is neutral, and dry to prepare the filter ceramic carrier.

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 filtering ceramic carrier and a preparation method thereof. The filtering ceramic carrier comprises, by mass, 15-25 parts of ceramic mud, 70-85 parts of alumina and 2-5 partsof a lithium-containing additive. The content of alpha-Al2O3 is increased by controlling the calcining temperature to be 1250-1400 DEG C, so that the rupture modulus of a ceramic tile is favorably increased, and the rigidity of the filtering ceramic carrier is increased; and the ratio of various raw materials is controlled to facilitate the increase of the content of the cordierite phase in the filtering ceramic carrier is increased, improve the porosity and form three-dimensional communicated pores, so the good filtering performance is obtained. The content of calcined alumina is increased,so that formation of a small amount of a corundum phase in the porous filtering ceramic tile is benefited.

Description

technical field [0001] The invention relates to the technical field of ceramic manufacturing, in particular to a filter ceramic carrier and a preparation method. Background technique [0002] The structure of the purification device includes a carrier (ie, porous ceramics) and a catalyst loaded on the carrier. The more pores the carrier has, the more uniform it is, the larger the effective adsorption surface area of ​​the carrier, and the stronger the purification ability. The pore-forming agent of the current carrier is generally an organic pore-forming agent, such as natural fibers, high molecular polymers and organic acids, etc. The organic pore-forming agent decomposes at a temperature much lower than the sintering temperature of the carrier, and leaves pores after decomposition. These pores, Especially some small pores are easy to be closed during high-temperature sintering and molding later, resulting in low porosity of the carrier and poor catalytic ability. [0003]...

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): C04B35/10C04B35/622C04B35/63C04B38/02B01D39/06
CPCC04B35/10C04B35/622C04B35/6303C04B38/02B01D39/06C04B2235/3472C04B2235/349C04B2235/656C04B2235/5436C04B2235/5427C04B2235/77C04B2235/96C04B2235/95
Inventor 魏绪春魏东东廖新
Owner 江西九岭锂业股份有限公司