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Indoor formaldehyde purifying preparation and preparation method thereof

A formaldehyde purification and preparation technology, applied in chemical instruments and methods, separation methods, gas treatment and other directions, can solve problems such as insufficient environmental protection, unsatisfactory adsorbents, etc., and achieve the effects of good effects, efficient and environmentally friendly preparation methods, and good governance effects.

Inactive Publication Date: 2020-05-01
顾振波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the invention provides a kind of indoor formaldehyde purification preparation and preparation method thereof, which solves the problem that the existing main methods for removing harmful gases such as formaldehyde are through ventilation and physical adsorption; many manufacturers produce Adsorbents are not ideal and not environmentally friendly

Method used

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  • Indoor formaldehyde purifying preparation and preparation method thereof
  • Indoor formaldehyde purifying preparation and preparation method thereof
  • Indoor formaldehyde purifying preparation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, an indoor formaldehyde purification preparation, the raw materials for the preparation of the indoor formaldehyde purification preparation include chitosan, biological enzymes, pH value buffers and deionized water, and the percentages are respectively 10% of chitosan and 10% of biological enzymes , PH value buffer 10% and deionized water 70%.

[0019] According to the above technical scheme, the pH value buffering agent is tea polyphenols.

[0020] A method for preparing an indoor formaldehyde purification preparation, the preparation method comprising the following steps:

[0021] S1: Weigh the above-mentioned raw materials in proportion and set aside;

[0022] S2: Put the chitosan, biological enzyme and deionized water weighed in S1 in a stirrer and stir for 2-10 hours to prepare a mixed solution;

[0023] S2: Prepare a mixed solution by weighing the PH value buffer from S1 and S2, mix it and add it to a stirring container, stir for 2-10 hours, then le...

Embodiment 2

[0026] Embodiment 2, an indoor formaldehyde purification preparation, the raw materials for the preparation of the indoor formaldehyde purification preparation include chitosan, biological enzymes, pH value buffers and deionized water, the percentages of which are 15% for chitosan and 15% for biological enzymes , PH value buffer 15% and deionized water 55%.

[0027] According to the above technical scheme, the pH value buffering agent is tea polyphenols.

[0028] A method for preparing an indoor formaldehyde purification preparation, the preparation method comprising the following steps:

[0029] S1: Weigh the above-mentioned raw materials in proportion and set aside;

[0030] S2: Put the chitosan, biological enzyme and deionized water weighed in S1 in a stirrer and stir for 2-10 hours to prepare a mixed solution;

[0031] S2: Prepare a mixed solution by weighing the PH value buffer from S1 and S2, mix it and add it to a stirring container, stir for 2-10 hours, then let it s...

experiment example

[0058] Experimental object: the formaldehyde purification preparation prepared in Example 1 of the present invention was used as experimental group A1 and the diformaldehyde purification preparation in Example 1 was used as experimental group A2, and the formaldehyde purification preparation prepared in Comparative Example 1 was selected as comparison group B1 and pair The formaldehyde purification preparation prepared in Example 2 was used as the comparison group B2 and the formaldehyde purification preparation prepared in the comparison example 3 was taken as the comparison group B3.

[0059] The purpose of the experiment: to test the concentration of formaldehyde (mol·L-1) in each group.

[0060] Experimental method: choose acid-base titration method for determination.

[0061] Experimental reagents: sulfuric acid standard solution (AR 0.5mol·1-1), thymol blue indicator, 0.1% ethanol solution, pipette 5ml, 10ml, 25ml, sodium sulfite solution (AR 1mol·1-1), formaldehyde for...

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Abstract

The invention discloses an indoor formaldehyde purifying preparation and a preparation method thereof, and solves the problem that an existing main method for removing harmful gases such as formaldehyde is realized through ventilation and physical adsorption. Adsorbents produced by many manufacturers are not ideal and are not environmentally friendly enough. The indoor formaldehyde purifying preparation is prepared from the following raw materials in percentage by weight: 10 to 15 percent of chitosan, 10 to 15 percent of a biological enzyme, 10 to 15 percent of a pH value buffering agent and 55 to 70 percent of deionized water. The defects that in the prior art, the removing effect of formaldehyde and other harmful gas, and the durability is poor, are poor is overcome; the environment-friendly preparation for capturing and removing formaldehyde for a long time is good in effect, environmentally friendly and free of pollution, the preparation method is efficient and environmentally friendly, the environment-friendly preparation comprises chitosan, biological enzyme and tea polyphenol, the components can fully play a synergistic role, and finally the effective indoor purifying preparation is formed.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an indoor formaldehyde purification preparation and a preparation method thereof. Background technique [0002] Formaldehyde, chemical formula HCHO, formula weight 30.03, also known as formaldehyde. It is a colorless gas with a special irritating smell, which is irritating to human eyes and nose. The relative density of gas is 1.067 (air=1), and the density of liquid is 0.815g / cm 3 (-20°C), melting point -92°C, boiling point -19.5°C. Indoor air pollution has become the cause of various diseases, and formaldehyde is the main aspect causing indoor air pollution. The problem of formaldehyde pollution is mainly concentrated in the living room. Plywood, fiberboard, particle board and other artificial boards such as textiles and home decoration materials contain a large amount of formaldehyde-based urea-formaldehyde resin, and various paints and coatings contain for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/84B01D53/72
CPCB01D53/72B01D53/84B01D2251/95B01D2257/704B01D2257/708B01D2258/06Y02A50/20
Inventor 顾振波
Owner 顾振波