A catalytic ceramic sintered ring for exhaust gas treatment and its preparation method

A waste gas treatment and sintering ring technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve the problems of incomplete purification and achieve the effect of no dead knot in combustion, no overheating sintering, and high purification efficiency

Inactive Publication Date: 2018-07-31
HANGZHOU ZHENGQING ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes a catalytic ceramic sintered ring for waste gas treatment with high exhaust gas purification efficiency and a preparation method, which solves the problems of incomplete purification in the prior art

Method used

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  • A catalytic ceramic sintered ring for exhaust gas treatment and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0032] The preparation steps of the catalytic ceramic sintered ring 1 include:

[0033]Step 1: 3kg of alumina, 4kg of titanium dioxide, 4kg of iron oxide, 4kg of zirconia, 4kg of lanthanum oxide, 3kg of cerium oxide, 4kg of praseodymium oxide, 4kg of zinc oxide, 30kg of activated carbon powder, and 40kg of silicon carbide are batched, wherein the The particle size of silicon carbide is ≤7 microns, the particle size of aluminum oxide, zinc oxide, and iron oxide is ≤100 nm, the particle size of zirconia is ≤90 nm, and the particle size of lanthanum oxide, cerium oxide, and praseodymium oxide is ≤40 nm. Described titanium dioxide particle diameter≤40 nanometers, pass 250-400 mesh sieve after described activated carbon powder is milled;

[0034] Step 2: Put 3kg of alumina, 4kg of titanium dioxide, 4kg of iron oxide, 4kg of zirconia, 4kg of lanthanum oxide, 3kg of cerium oxide, 4kg of praseodymium oxide, 4kg of zinc oxide, 30kg of activated carbon powder and 40kg of silicon carbide...

Embodiment 2

[0037] The preparation steps of the catalytic ceramic sintered ring 1 include:

[0038] Step 1: 2kg of alumina, 3kg of titanium dioxide, 3kg of iron oxide, 3kg of zirconia, 4kg of lanthanum oxide, 3kg of cerium oxide, 2kg of praseodymium oxide, 4kg of zinc oxide, 35kg of activated carbon powder, and 41kg of silicon carbide are used for batching, wherein the The particle size of silicon carbide is ≤7 microns, the particle size of aluminum oxide, zinc oxide, and iron oxide is ≤100 nm, the particle size of zirconia is ≤90 nm, and the particle size of lanthanum oxide, cerium oxide, and praseodymium oxide is ≤40 nm. Described titanium dioxide particle diameter≤40 nanometers, pass 250-400 mesh sieve after described activated carbon powder is milled;

[0039] Step 2: Put 2kg of alumina, 3kg of titanium dioxide, 3kg of iron oxide, 3kg of zirconia, 4kg of lanthanum oxide, 3kg of cerium oxide, 2kg of praseodymium oxide, 4kg of zinc oxide, 35kg of activated carbon powder and 41kg of sili...

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Abstract

The invention belongs to the technical field of waste gas purification materials, and in particular relates to a catalytic ceramic sintering ring for waste gas treatment and a preparation method. The catalytic ceramic sintering ring comprises the following components by weight: 2-6% of alumina; 3% of titanium dioxide ~4%; iron oxide 3~5%; zirconia 3~4%; lanthanum oxide 4~5%; cerium oxide 3~6%; praseodymium oxide 2~4%; zinc oxide 4~5%; activated carbon powder 30~ 35%; silicon carbide 40-45%. The catalytic ceramic sintered ring for exhaust gas treatment proposed by the invention has high catalytic reaction efficiency and remarkable exhaust gas purification efficiency.

Description

technical field [0001] The invention relates to a catalytic oxidation material and a preparation method thereof for purifying organic waste gas produced in the process of spraying, curing and cleaning spray guns of metal parts, waste plastics and waste gas produced in rubber processing. The invention belongs to the technical field of exhaust gas purification materials. Background technique [0002] With the continuous improvement of the degree of industrialization, the proportion of man-made air pollutants in the total air pollutants is increasing, and the harm to human health is increasing. At present, the industrial sectors that emit the most air pollutants are: petroleum and chemical industry, metallurgical industry, electric power industry, building materials industry, etc. The emission of exhaust gas has a certain impact on the surrounding environment. [0003] Exhaust gas purification mainly refers to the work of treating industrial waste gas such as dust particles, f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/224B01J25/02B01D53/86
Inventor 郦宏
Owner HANGZHOU ZHENGQING ENVIRONMENTAL PROTECTION SCI & TECH
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