Preparation method of organic ligand modified formaldehyde purification catalyst
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A formaldehyde purification and organic ligand technology, which is used in the field of indoor air purification to achieve the effects of increasing the loading capacity, promoting decomposition and improving dispersion.
Active Publication Date: 2017-05-10
JIANGXI BAOAN NEW MATERIAL TECH
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[0005] Aiming at the problems existing in the above-mentioned air purifiers in the prior art, the present invention provides an air purifier that can not only filter and absorb dust particles in the air, eliminate peculiar smell, sterilize and absorb harmful gases, but also effectively decompose harmful gases and improve the purification efficiency. Preparation method of organic ligand modified formaldehyde purification catalyst
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Embodiment 1
[0021] The preparation method step of organic ligand modified formaldehyde purification catalyst of the present invention is:
[0022] 1. First use 40-50wt% alumina (powder), 30-40wt% silicon dioxide (powder) and 10-30wt% adhesive, lubricant and flux as auxiliary materials, add appropriate amount of water, ball mill and knead Mud, molding, drying and setting and high-temperature firing to make honeycomb ceramic sheets, the honeycomb ceramic sheets are cylindrical, with a diameter of 25 mm, a height of 12.5 mm, and a mesh number of 300 mesh;
[0023] 2. The titanium oxide raw material is ball milled into 250 mesh titanium oxide powder;
[0024] 3. Premix the powders of La, Cu and Mn with a total content of 5% of the weight of titanium oxide powder, and then mix with water twice the weight of titanium oxide powder to make corresponding water-soluble salts, La (lanthanum), The weight ratio of Cu to Mn is 4:3:3,
[0025] 4. Under stirring conditions, add the titanium oxide powde...
Embodiment 2
[0032] The preparation method steps of the organic ligand modified formaldehyde purification catalyst are:
[0033] 1. First use 40-50wt% alumina (powder), 30-40wt% silicon dioxide (powder) and 10-30wt% adhesive, lubricant and flux as auxiliary materials, add appropriate amount of water, ball mill and knead Mud, molding, drying and setting and high-temperature firing to make honeycomb ceramic sheets, the honeycomb ceramic sheets are cylindrical, with a diameter of 25 mm, a height of 12.5 mm, and a mesh number of 300 mesh;
[0034] 2. The titanium oxide raw material is ball milled into 250 mesh titanium oxide powder;
[0035] 3. Premix the powders of La, Fe and Sn with a total content of 3-5% of the weight of titanium oxide powder, and then mix with water twice the weight of titanium oxide powder to make the corresponding water-soluble salt, La (lanthanum ), the weight ratio of Fe and Sn is 4:3:3,
[0036] 4. Under stirring conditions, add the titanium oxide powder of step b ...
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Abstract
The invention discloses a preparation method of an organic ligand modified formaldehyde purification catalyst. La accounting for 1%-10% of titanium oxide by weight is premixed with at least one of Cu, Fe and Ni and at least one of Sn and Mn and then mixed with water, water-soluble salt is prepared, titanium oxide powder is added, the mixture is dried and calcined at a high temperature, a modified catalyst carrier is prepared and added to a Pt organic solution, the mixture is dried and calcined at a high temperature, modified catalyst carrier powder is prepared and mixed with pseudo-boehmite, methylcellulose and water, modified paste is prepared, honeycomb ceramic plates are dipped in the modified paste, then dried, calcined, cooled and reduced, and the organic ligand modified formaldehyde purification catalyst is obtained. The catalyst can filter dust, eliminate peculiar smells, perform sterilization and disinfection functions and adsorb harmful gas and can also promote complete catalytic decomposition of harmful gas, so that the adsorbed harmful gas cannot cause secondary pollution, a catalyst layer is not prone to peel or crack, and the service life is long.
Description
technical field [0001] The invention relates to indoor air purification technology, in particular to a catalyst for modifying organic ligands to purify air and decompose formaldehyde and an air purifier made of the catalyst. Background technique [0002] With the continuous acceleration of the industrialization process, indoor air pollution is becoming more and more serious, which makes indoor air purification particularly concerned. Therefore, people have higher requirements for the quality of the home environment. At present, for indoor air purification, most of the methods such as filter screen + activated carbon filter screen ultraviolet sterilization + electrostatic adsorption filter screen are used to absorb dust, eliminate peculiar smell, and sterilize to purify the air. [0003] With the improvement of people's living standards, home decoration has become a universal fashion, but a large number of building materials and decoration materials have caused indoor air po...
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