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Low-cost sheet honeycomb ceramic automobile tail gas purifying material and preparation method thereof

A technology of honeycomb ceramics and automobile exhaust gas is applied in the field of ceramic materials, which can solve the problems of increased use cost, waste of resources, and insufficient heat resistance of ceramic carriers, and achieves the effects of saving costs, reducing raw material costs, and promoting full utilization.

Inactive Publication Date: 2016-12-21
ANHUI FASTER AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Zhu Jie used cordierite honeycomb ceramics as the carrier in his master's thesis "Study on the Catalytic Performance of Cordierite Honeycomb Ceramics Loaded La-Sr-Co-O on Automobile Exhaust Gas", La-Sr-Co-O perovskite composite oxidation As the active component of the catalyst, a monolithic automobile exhaust catalyst has been prepared, but the heat resistance of the prepared ceramic carrier is not high enough, and once the monolithic catalyst is damaged, it needs to be replaced as a whole, which wastes resources and increases the cost of use.

Method used

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Experimental program
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Effect test

Embodiment

[0020] A low-cost flaky honeycomb ceramic automobile exhaust purification material is characterized in that it is made of the following raw materials in parts by weight:

[0021] Rare earth tailings 20, cordierite 20, clay 3, bentonite 3, ZrO 2 Powder 5, CrO 2 powder 5, talc powder 10, polytetrafluoroethylene powder 3, magnesium carbonate 3, sodium carbonate 4, stearic acid 8, 1 mol / L HNO 3 Appropriate amount of solution, nano-alumina sol 50, 1 mol / L La(NO 3 ) 3 3, 1 mol / L Sr(NO 3 ) 2 2,1 mol / L Co(NO 3 ) 2 1. 1 mol / L citric acid 2, deionized water 200;

[0022] The solid content of the nano-alumina sol is 20%-25%, and the chemical composition of the rare earth tailings contains SiO 2 76.54 -77.10wt%, Al 2 o 3 17.5 -18.06wt%, Fe 2 o 3 1.98 -2.11wt%, TiO 2 0.38-0.46wt%, K 2 O1.21-1.58wt%, Na 2 O 0.43-0.49wt%, CaO 0.22-0.28wt%, MgO 1.18-1.33wt%.

[0023] Described a kind of low-cost flaky honeycomb ceramic automobile exhaust purification material and prepar...

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PUM

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Abstract

The invention discloses a low-cost sheet honeycomb ceramic automobile tail gas purifying material and a preparation method thereof. The low-cost sheet honeycomb ceramic automobile tail gas purifying material is prepared from, by weight, 15-20 parts of rare earth tailings, 20-25 parts of iolite, 1-3 parts of clay, 1-3 parts of bentonite, 5-10 parts of ZrO2 powder, 5-10 parts of CrO2 powder, 10-15 parts of talcum powder, 1-3 parts of polytetrafluoroethylene powder, 3-5 parts of magnesium carbonate, 4-8 parts of sodium carbonate, 5-10 parts of stearic acid, a proper amount of a 1 mol / L HNO3 solution, 50-60 parts of nano-alumina sol, 1-3 parts of 1 mol / L La(NO3)3, 1-2 parts of 1 mol / L Sr(NO3)2, 0.5-1 part of 1 mol / L Co(NO3)2, 2-6 parts of 1 mol / L citric acid and 100-200 parts of deionized water. A honeycomb ceramic carrier is processed to form a sheet, so installation and replacement are convenient, the cost is saved, and full utilization of resources is promoted.

Description

technical field [0001] The invention relates to ceramic materials, in particular to a low-cost sheet-shaped honeycomb ceramic automobile tail gas purification material and a preparation method thereof. technical background [0002] Motor vehicle pollution has become an important source of air pollution in my country and an important cause of haze and photochemical smog pollution. Vehicle exhaust is mainly nitrogen oxides (NO x ), hydrocarbons (HC), carbon monoxide (C0), particulate matter, etc., have become the main air pollutants. Therefore, the most important thing to solve the air pollution problem is to solve the problem of automobile exhaust pollution. [0003] The automobile exhaust purifier is mainly composed of three parts: the shell, the carrier and the catalyst, among which the selection of the catalyst is very important. Three-way catalyst refers to the ability to remove NO at the same time x , HC, CO these three main pollutants catalysts, a large number of exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/94B01D53/56B01D53/62B01D53/72C04B38/00C04B35/195C04B35/622C04B41/85
CPCB01D53/945B01D2258/01C04B35/195C04B35/622C04B38/0006C04B41/5045C04B41/85C04B2235/3201C04B2235/3206C04B2235/3217C04B2235/3227C04B2235/3244C04B2235/3275C04B2235/349C04B41/5031C04B41/5027
Inventor 胡孝德
Owner ANHUI FASTER AUTO PARTS
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