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Process for preparing ceramic filter element with desulfuration function

A technology for ceramic filtration and desulfurization, applied in ceramic products, applications, household appliances, etc., can solve problems such as failure and reduce the strength of ceramics, and achieve low cost, long service life, and good desulfurization effect.

Inactive Publication Date: 2005-06-22
SHANDONG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

This will not only reduce the strength of the ceramic, but also cause partial failure due to the oxidation of the desulfurizer caused by high temperature sintering

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] 1. The preparation process of ceramic components: use W100 and W80 corundum powder (that is, 100 μm and 80 μm respectively) produced by Shandong Aluminum Plant as aggregate, and the dosage is 75wt%; 1wt% bentonite and 14wt% feldspar are used as sintering aids , with kaolin, kaolin, and talc as binders, the addition amount is 10wt%, and each component is strictly according to the molecular formula of cordierite MgO·Al 2 o 3 3.3SiO2 2 For metering, mix the above three types of raw materials with water and ball mill for 10 hours to prepare a mixed slurry, then add -100 mesh activated carbon 20wt% (based on the total weight of raw materials, the same below), stir and mix evenly and stale for 4 hours, then add 10wt% cornstarch and 0.2wt% gum arabic mixed evenly, add Na 2 SiO 3 Adjust the pH value to ≥9.5 to obtain a porous ceramic slurry, which is then stirred and vacuum-treated for grouting and molding, then demolded and dried, and sintered at a temperature of 1350°C for...

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PUM

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Abstract

The invention provides a process for preparing ceramic filter element with desulfuration function which comprises, mixing aggregate, agglutinant and bonding agent with water proportionally, grinding to obtain mixed paste, then charging -100 mesh composite pore former and gum Arabic, mixing uniformly, adjusting pH to 9-10, obtaining porous ceramic paper stock, slip casting moulding through vacuum treatment, demoulding to obtain ceramic element, (2) preparing ferrum acid zinc sol suitable for heat gas desulfurizing by means of sol-gel method, then carrying out desulfurizing agent film coating to the filtering element, sintering at 500 deg. C.

Description

Technical field [0001] The invention provides a preparation process of a ceramic filter element with desulfurization function, which belongs to the technical field of porous ceramic preparation process. Background technique [0002] Porous ceramics are a kind of pore functional ceramics, which contain a large number of openings through pores, so they have the characteristics of huge porosity, pore surface area, adjustable pore shape, distribution and connection of pores in three-dimensional space. Therefore, the method of using porous ceramics to remove particulate impurities and harmful and toxic substances is becoming more and more widely used. Porous ceramics are composed of aggregates, binders, and pore-forming agents. According to the principle of particle accumulation, the traditional molding process is adopted and fired at high temperature. Ceramic filters used to filter hot gas, in addition to the characteristics of high strength, high temperature thermal shock resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/48C04B35/622C04B38/00C04B38/06C04B41/85C10K1/00
Inventor 许珂敬田贵山唐竹兴任京成孟凡涛魏春城
Owner SHANDONG UNIV OF TECH
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