Formaldehyde removal solution and support carrier thereof, preparation method and formaldehyde removal filter element

Abstract

The invention belongs to the technical field of formaldehyde removal, in particular to a formaldehyde removal solution and a support carrier thereof, a preparation method and a formaldehyde removal filter element. The formaldehyde removal solution and the support carrier thereof, As that amine substance, a cosolvent, a compound containing the active alpha hydrogen atom and a solvent are added intoa reaction kettle in a certain proportion to obtain the formaldehyde removal solution, and then the formaldehyde adsorbent is immersed into the formaldehyde removal solution to obtain a carrier loaded with the formaldehyde removal solution, wherein the formaldehyde removal solution adopts the principle of aldehyde-amine carboxylation reaction and realizes non-toxic and harmless treatment of formaldehyde by changing amine substance groups, and does not cause secondary environmental pollution; as compared with that traditional preparation method, the preparation process of the formaldehyde removal solution is non-toxic and harmless, does not cause physical damage to the user, and the formaldehyde removal efficiency and the stability are improved by about 30 percent.

Description

technical field

[0001] The invention belongs to the technical field of aldehyde removal, and in particular relates to an aldehyde removal solution, a load carrier thereof, a preparation method and an aldehyde removal filter element. Background technique

[0002] Many household items such as interior decoration materials, furniture, and textiles can release toxic gases such as free formaldehyde, benzene, and TVOC. Formaldehyde is one of the most serious indoor pollution sources and has been determined by the World Health Organization as a carcinogenic and teratogenic substance; formaldehyde has the longest volatilization period, and its hazards are manifested as strong irritation to the upper respiratory tract mucous membrane, eyes and skin, causing headaches , dizziness and other symptoms, severe respiratory irritation and edema will occur when the inhalation concentration is too high; formaldehyde is one of the important factors that produce diseases such as bad building sy...

Examples

Embodiment 1

[0030] A solution for removing aldehydes, the raw material components of the solution for removing aldehydes include amines, co-solvents, compounds containing active α hydrogen atoms, and solvents, and the mass ratio of the amines, co-solvents, and solvents is 1:3 :10-1:7:20, the mass ratio of the amine substance to the compound containing active α-hydrogen atoms is 2:3-4:1.

[0031] The amines include ethylenediamine, propylenediamine, hexamethylenediamine, etc., and hexamethylenediamine is used as an example in this embodiment; the cosolvents include methanol, ethanol, isopropanol, etc. ethanol. In this embodiment, the compound containing active α-hydrogen atoms is chitosan monomer, and the solvent is water, so that chitosan monomer and hexamethylenediamine can be fully dissolved in the aqueous solution of ethanol.

[0032] Such as figure 1 Shown, a kind of preparation method of aldehyde-removing solution,

[0033] S1: Add amines, co-solvents, and solvents into the reacti...

Embodiment 2

[0052] The difference between this example and Example 1 is that the mass ratio of amines, co-solvents, and solvents is 1:5:15, and the mass ratio of the amines to compounds containing active α-hydrogen atoms is 3:2.

[0053] In this example, the formaldehyde adsorbent is illustrated by taking 2*5mm coal-based activated carbon as an example. Then, the loaded aldehyde-removing solution is made into a filter element and put into a testing machine for testing. The test results are shown in Table 2 below.

[0054] Table 2

[0055] Formaldehyde initial value 1ppm 0 hours 3 hours 6 hours 12 hours Formaldehyde concentration 0ppm 0.16ppm 0.33ppm 0.423ppm Penetration rate 0％ 16％ 33％ 43％

[0056] Through the test, it can be seen that the aldehyde removal filter element has obvious aldehyde removal effect. Compared with the traditional aldehyde removal filter element, the aldehyde removal efficiency and stability of the filter element have incr...

Embodiment 3

[0058] The difference between this embodiment and Example 1 is that the mass ratio of the amines, co-solvents, and solvents is 1:7:20, and the ratio of the amines to the compound containing active α hydrogen atoms is 4: 1.

[0059] In this example, the formaldehyde adsorbent is illustrated by taking 30-60 mesh coconut shell activated carbon as an example. Then, the loaded aldehyde-removing solution is made into a filter element and put into a testing machine for testing. The test results are shown in Table 3 below.

[0060] table 3

[0061] Formaldehyde initial value 1ppm 0 hours 3 hours 6 hours 12 hours Formaldehyde concentration 0ppm 0.175ppm 0.36ppm 0.45ppm Penetration rate 0％ 17.5％ 36％ 45％

[0062] Through the test, it can be seen that the aldehyde removal filter element has obvious aldehyde removal effect. Compared with the traditional aldehyde removal filter element, the aldehyde removal efficiency and stability of the filter el...

technical field

[0001] The invention belongs to the technical field of aldehyde removal, and in particular relates to an aldehyde removal solution, a load carrier thereof, a preparation method and an aldehyde removal filter element. Background technique

[0002] Many household items such as interior decoration materials, furniture, and textiles can release toxic gases such as free formaldehyde, benzene, and TVOC. Formaldehyde is one of the most serious indoor pollution sources and has been determined by the World Health Organization as a carcinogenic and teratogenic substance; formaldehyde has the longest volatilization period, and its hazards are manifested as strong irritation to the upper respiratory tract mucous membrane, eyes and skin, causing headaches , dizziness and other symptoms, severe respiratory irritation and edema will occur when the inhalation concentration is too high; formaldehyde is one of the important factors that produce diseases such as bad building sy...

Examples

Embodiment 1

[0030] A solution for removing aldehydes, the raw material components of the solution for removing aldehydes include amines, co-solvents, compounds containing active α hydrogen atoms, and solvents, and the mass ratio of the amines, co-solvents, and solvents is 1:3 :10-1:7:20, the mass ratio of the amine substance to the compound containing active α-hydrogen atoms is 2:3-4:1.

[0031] The amines include ethylenediamine, propylenediamine, hexamethylenediamine, etc., and hexamethylenediamine is used as an example in this embodiment; the cosolvents include methanol, ethanol, isopropanol, etc. ethanol. In this embodiment, the compound containing active α-hydrogen atoms is chitosan monomer, and the solvent is water, so that chitosan monomer and hexamethylenediamine can be fully dissolved in the aqueous solution of ethanol.

[0032] Such as figure 1 Shown, a kind of preparation method of aldehyde-removing solution,

[0033] S1: Add amines, co-solvents, and solvents into the reacti...

Embodiment 2

[0052] The difference between this example and Example 1 is that the mass ratio of amines, co-solvents, and solvents is 1:5:15, and the mass ratio of the amines to compounds containing active α-hydrogen atoms is 3:2.

[0053] In this example, the formaldehyde adsorbent is illustrated by taking 2*5mm coal-based activated carbon as an example. Then, the loaded aldehyde-removing solution is made into a filter element and put into a testing machine for testing. The test results are shown in Table 2 below.

[0054] Table 2

[0055] Formaldehyde initial value 1ppm 0 hours 3 hours 6 hours 12 hours Formaldehyde concentration 0ppm 0.16ppm 0.33ppm 0.423ppm Penetration rate 0％ 16％ 33％ 43％

[0056] Through the test, it can be seen that the aldehyde removal filter element has obvious aldehyde removal effect. Compared with the traditional aldehyde removal filter element, the aldehyde removal efficiency and stability of the filter element have incr...

Embodiment 3

[0058] The difference between this embodiment and Example 1 is that the mass ratio of the amines, co-solvents, and solvents is 1:7:20, and the ratio of the amines to the compound containing active α hydrogen atoms is 4: 1.

[0059] In this example, the formaldehyde adsorbent is illustrated by taking 30-60 mesh coconut shell activated carbon as an example. Then, the loaded aldehyde-removing solution is made into a filter element and put into a testing machine for testing. The test results are shown in Table 3 below.

[0060] table 3

[0061] Formaldehyde initial value 1ppm 0 hours 3 hours 6 hours 12 hours Formaldehyde concentration 0ppm 0.175ppm 0.36ppm 0.45ppm Penetration rate 0％ 17.5％ 36％ 45％

[0062] Through the test, it can be seen that the aldehyde removal filter element has obvious aldehyde removal effect. Compared with the traditional aldehyde removal filter element, the aldehyde removal efficiency and stability of the filter el...

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