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

Preparation method for diatomite based porous ceramic

A technology of diatomite and porous ceramics, which is applied in the field of material science and engineering, can solve the problems of the promotion and application of porous ceramics limited by firing temperature, wide pore diameter, etc., and achieves the effects of good application prospects, low production cost and wide sources.

Inactive Publication Date: 2017-06-23
营口渤海科技有限公司
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, commercial porous ceramics are mainly based on Al 2 o 3 , SiC, ZrO 2 Porous ceramics prepared with mullite as the main raw material, although the strength is better, but the pore size is wider and larger, and the high price of these materials and the high firing temperature in the preparation process limit the promotion and application of porous ceramics in many aspects

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] 850g of diatomite, 60g of kaolin, 20g of quartz, 40g of feldspar, 15g of sodium silicate, 15g of polyvinyl alcohol, and 1000g of water; when preparing, mix the raw materials, pass through a ball mill, select 8kg of 3-5mm zirconia balls, and grind to D98≤10μm, then filtered, dried at 105°C for 2.5 hours, pressed into shape with a tablet press at a pressure of 45MPa, and then calcined at 1050°C for 3 hours to obtain diatomite-based porous ceramics.

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 preparation method for diatomite based porous ceramic. The preparation method successively comprises the following steps: with diatomite as a main raw material, adding proper amounts of a sintering auxiliary agent, a dispersant and a binder according to a certain proportion, adding zirconia spheres, carrying out a superfine wet type grinding process until the zirconia spheres are ground to a certain fineness, then carrying out filtering and drying, and carrying out semi-dry pressing and low-temperature calcination so as to prepare the diatomite based porous ceramic. The diatomite based porous ceramic product obtained by using the method provided by the invention has the advantages of simple process, low cost, excellent performances, porousness, light weight, sound insulation, heat insulation, low sintering temperature, energy conservation, environmental protection, applicability to industrial production, etc.

Description

technical field [0001] The invention belongs to the field of material science and engineering, in particular to a preparation method of diatomite-based porous ceramics. Background technique [0002] Diatomaceous earth is a non-metallic mineral that is deposited on the bottom of the water from the remains of diatoms that grow in oceans or lakes. It has a unique diatom shell structure, strong adsorption, large specific surface area, and high porosity. With excellent properties such as high temperature resistance and high temperature resistance, it is widely used in the fields of chemical industry and environmental protection in modern industry. In recent years, diatomaceous earth has attracted people's attention because of its wide source, low price, and a large number of micropores below the micron level. Utilizing the characteristics of the original pores in diatomite, adding additives and low-temperature calcination process to keep the original pores and the accumulation o...

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): C04B38/08C04B35/14
CPCC04B38/08C04B2235/3418C04B2235/3427C04B2235/3472C04B2235/349C04B2235/612
Inventor 王福明曾凡东林宇
Owner 营口渤海科技有限公司