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Formaldehyde removing composition and formaldehyde removing method

A composition and formaldehyde technology, applied in the field of formaldehyde removal composition and formaldehyde removal, can solve the problems of general effect and secondary pollution, and achieve a thorough and long-lasting effect of formaldehyde removal

Inactive Publication Date: 2019-06-25
北京菲迪可环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another researcher impregnated microporous granular carbon in phosphoric acid solution, soaked activated carbon in ZnCl2 solution, and adsorbed formaldehyde in indoor air through the dried activated carbon, but the adsorption of formaldehyde by activated carbon was easy to reach a saturated state.
Other studies have found that photocatalysts have a good degradation effect on air pollutants, but this method needs to be operated by ultraviolet light and professionals, and will cause secondary pollution
The effect of using single hydrazide and ammonia substances is average, and it will cause secondary pollution

Method used

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  • Formaldehyde removing composition and formaldehyde removing method
  • Formaldehyde removing composition and formaldehyde removing method
  • Formaldehyde removing composition and formaldehyde removing method

Examples

Experimental program
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Effect test

Embodiment approach

[0026] According to one embodiment of the present invention, the hydrazide compound is selected from adipate dihydrazide, acetyl hydrazide or oxalate dihydrazide.

[0027] According to one embodiment of the present invention, the hydrazide compound is selected from adipate dihydrazide.

[0028] According to one embodiment of the present invention, the formaldehyde scavenger is ethylene urea and adipate dihydrazide.

[0029] In the present invention, the combined use of ethylene urea and adipic acid dihydrazide significantly improves the formaldehyde removal effect and can remove formaldehyde more efficiently and thoroughly; in addition, the combined use of the two is more environmentally friendly than the use of adipic acid dihydrazide alone. Sex is improved.

[0030] According to one embodiment of the present invention, the weight ratio of the ethylene urea to the adipate dihydrazide is 1:3˜3:1.

[0031] According to one embodiment of the present invention, the ethylene ure...

Embodiment 1

[0056]

[0057] The preparation method of the formaldehyde removal composition of embodiment 1 is as follows:

[0058] Mix polyvinyl alcohol and ethanol evenly to obtain a mixed solution, heat up to 50°C and stir for 30 minutes to completely dissolve polyvinyl alcohol in ethanol, and then mix the mixed solution with deionized water, ethylene urea, adipic dihydrazide, Magnesium chloride was mixed, fully stirred, and then placed at 20° C. for 24 hours to obtain the formaldehyde-removing composition of Example 1.

Embodiment 2

[0060]

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Abstract

The invention relates to the technical field of formaldehyde purification, in particular to a formaldehyde removing composition and a formaldehyde removing method. The formaldehyde removing composition comprises the following components by weight: 3-20 parts of a formaldehyde capture agent, 0.1-0.5 part of an adhesive agent, 0.2-1 part of a stabilizer, 10-30 parts of a cosolvent, and 80-120 partsof a solvent. Specifically, the formaldehyde capture agent is selected from one or more of ethylene urea, a hydrazide compound, ammonia water, glycine, ammonium chloride and chitosan.

Description

technical field [0001] The invention relates to the technical field of formaldehyde purification, in particular to a formaldehyde removal composition and a formaldehyde removal method. Background technique [0002] In people's daily life, formaldehyde contained in consumer goods such as interior decoration materials, furniture, and specially arranged clothing fabrics has become one of the serious pollutants in indoor air. [0003] Researchers have found that the hanging foliage plant Chlorophytum can purify formaldehyde in indoor air, but the plant absorption method takes a long time to remove formaldehyde and the absorption is limited. Other researchers impregnated microporous granular carbon in phosphoric acid solution, soaked activated carbon in ZnCl2 solution, and adsorbed formaldehyde in indoor air through the dried activated carbon, but the adsorption of formaldehyde by activated carbon was easy to reach saturation. There are also studies that have found that photocat...

Claims

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Application Information

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IPC IPC(8): B01D53/72
Inventor 张有为王子瑞骆怡
Owner 北京菲迪可环保科技有限公司
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