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Multi-phase functional ceramic honeycomb support and preparation method thereof

A technology of functional ceramics and supports, applied in the direction of ceramic products, chemical instruments and methods, catalyst carriers, etc., to achieve the effects of strong chemical corrosion resistance, refined grains, and high mechanical strength

Active Publication Date: 2007-10-31
SHANDONG GEMSKY ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aluminum titanate is one of the materials with the smallest coefficient of thermal expansion

Method used

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  • Multi-phase functional ceramic honeycomb support and preparation method thereof
  • Multi-phase functional ceramic honeycomb support and preparation method thereof
  • Multi-phase functional ceramic honeycomb support and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Mix 2400 grams of titanium dioxide, 1000 grams of alumina, 400 grams of silicon dioxide, 120 grams of magnesium oxide, and 40 grams of rare earth cerium oxide (the particle size of the mixed dry material is completely passed through a 60-mesh standard sieve), add 817 grams of water, 163.4 grams of tung oil, 408.45 grams of carboxymethyl cellulose were kneaded, extruded, dried in a drying oven at 110°C for 12 hours, and then heated to 1250°C for 3 hours to obtain the product. The product picture is shown in Figure 2, and its microscopic appearance is shown in Figure 3.

Embodiment 2

[0023] After mixing 2200 grams of titanium dioxide, 1200 grams of alumina, 400 grams of silicon dioxide, 40 grams of magnesium oxide, and 40 grams of rare earth erbium oxide (the particle size of the mixed dry material completely passes through a 60-mesh standard sieve), add 817 grams of water and 163.4 grams of wax The emulsion and 408.45 grams of polyvinyl alcohol were mixed, extruded, dried in a drying oven at 110°C for 12 hours, and then heated to 1300°C for 2 hours to obtain the product.

Embodiment 3

[0025] Mix 2600 grams of titanium dioxide, 800 grams of alumina, 480 grams of silicon dioxide, 200 grams of magnesium oxide, 40 grams of rare earth cerium oxide, and 40 grams of rare earth erbium oxide (the particle size of the mixed dry material is completely passed through a 60-mesh standard sieve), and add 817 grams of Water, 163.4 grams of tung oil, and 408.45 grams of carboxypolyvinyl alcohol were mixed, extruded, dried in a drying oven at 120°C for 12 hours, and then heated to 1280°C for 3 hours to obtain the product.

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Abstract

The invention discloses a preparing method of polyphase functionality honeycomb ceramic supporting body, which comprises the following steps: choosing titanium white, silica dioxide and aluminum oxide as main raw material; doping rare earth; adding right amount magnesium oxide accelerating burnt agent and additive; mixed-refining; squeezing; forming; drying; calcining for 2-3 h under 1200-1500 deg. c; generating the product with aluminium titanate and red schorl as principal crystalline phase. This product possesses shockproof, corrosion resistant, high intensity and good association with coated carrier, which can be used to the carrier of car exhaust gas cleansing activator and carrier reactor of photocatalyzer.

Description

technical field [0001] The invention relates to a ceramic honeycomb support body and a preparation method thereof, in particular to an ATS multiphase functional honeycomb ceramic support body and a preparation method thereof. The support body is used for the support body of industrial flue gas integrated denitrification catalyst, the carrier of automobile exhaust gas purification catalyst and the carrier reactor of photocatalyst. The invention belongs to the field of preparation of special industrial ceramics or environmental protection technology. Background technique [0002] At present, most of the ceramic supports for industrial flue gas denitrification catalysts are made of cordierite. As described in the patent publication CN140141416A, the cost of cordierite supports is low, which is beneficial to reduce the operating cost of the denitrification process, and has high strength and small coefficient of thermal expansion. . However, it has poor compatibility with activ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/78C04B38/00C04B35/622B01J32/00
Inventor 祝社民沈岳松刘亚云
Owner SHANDONG GEMSKY ENVIRONMENTAL PROTECTION TECH CO LTD
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