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Preparation method of indoor high-efficient formaldehyde removal agent

A formaldehyde scavenger and high-efficiency technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve problems such as unsatisfactory formaldehyde removal effect, and achieve the purpose of improving physical adsorption effect, improving adsorption efficiency, and enhancing adsorption performance. Effect

Inactive Publication Date: 2018-11-23
ANHUI KEPU ENVIRONMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the formaldehyde in the newly renovated house will exceed the standard. However, the existing formaldehyde scavengers all have the problem of unsatisfactory formaldehyde removal effect, which needs to be solved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of an indoor high-efficiency formaldehyde scavenger, comprising the following steps:

[0020] S1. Add 4 parts of triethylenetetramine and 12 parts of diethylenetriamine into deionized water in parts by weight, stir for 5 minutes, then add 2 parts of modified titanium dioxide, and stir evenly to obtain a suspension a;

[0021] S2. Immerse 80 parts of modified activated carbon, 15 parts of tourmaline, 4 parts of bentonite, 25 parts of attapulgite, and 10 parts of sepiolite into the suspension a by weight, and dry to obtain an indoor high-efficiency formaldehyde scavenger.

Embodiment 2

[0023] A preparation method of an indoor high-efficiency formaldehyde scavenger, comprising the following steps:

[0024] S1. Add 4 parts of triethylenetetramine and 12 parts of diethylenetriamine into deionized water in parts by weight. After stirring for 5 minutes, add 2 parts of modified titanium dioxide and stir evenly to obtain a suspension a; the added deionized water The volume is twice the total volume of triethylenetetramine and diethylenetriamine;

[0025] Preparation of the modified titanium dioxide: disperse the titanium dioxide in water under agitation, add excess ethylenediamine, evaporate to dryness with a rotary evaporator after standing for 18 hours, wash with ethanol for 5 times, and then dry at a temperature of 70°C dry, and then roasted in a muffle furnace at 420°C for 1.5 hours to obtain powder a; add powder a to cerium nitrate solution and stir for 32 minutes, centrifuge and dry the solid product; the concentration of the cerium nitrate solution is 0.001m...

Embodiment 3

[0029] A preparation method of an indoor high-efficiency formaldehyde scavenger, comprising the following steps:

[0030] S1. Add 10 parts of triethylenetetramine and 5 parts of diethylenetriamine into deionized water in parts by weight. After stirring for 10 minutes, add 0.2 parts of modified titanium dioxide and stir evenly to obtain a suspension a; the added deionized water The volume is 5 times the total volume of triethylenetetramine and diethylenetriamine;

[0031] The preparation of the modified titanium dioxide: disperse the titanium dioxide in water under stirring conditions, add excess ethylenediamine, evaporate to dryness with a rotary evaporator after standing for 24 hours, wash with ethanol twice, and then dry at a temperature of 78°C dry, and then roasted in a muffle furnace at 380°C for 3 hours to obtain powder a; add powder a to cerium nitrate solution and stir for 12 minutes, centrifuge and dry the solid product; the concentration of the cerium nitrate solutio...

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Abstract

The invention discloses a preparation method of an indoor high-efficient formaldehyde removal agent. The preparation method comprises the following steps: adding 4 to 10 parts by weight of triethylenetetramine and 5 to 12 parts by weight of diethylenetriamine into deionized water, stirring for 5 to 10 minutes, adding 0.2 to 2 parts by weight of modified titanium dioxide, uniformly stirring, and obtaining suspension a; and soaking 80 to 120 parts by weight of modified active carbon, 5 to 15 parts by weight of tourmaline, 4 to 15 parts by weight of bentonite, 10 to 25 parts by weight of attapulgite, and 10 to 18 parts by weight of sepiolite in the suspension a, drying, thus obtaining the indoor high-performance formaldehyde removal agent. The indoor high-performance formaldehyde removal agent prepared by the method of the invention is excellent in formaldehyde removal performance, and by virtue of test, the formaldehyde degradation rate in 24 hours reaches 99 percent or above.

Description

technical field [0001] The invention relates to the technical field of formaldehyde removal, in particular to a preparation method of an indoor high-efficiency formaldehyde scavenger. Background technique [0002] Formaldehyde is a colorless, pungent gas with a strong odor. Formaldehyde can be contained in various man-made boards (particle board, density board, fiberboard, plywood, etc.) due to the use of urea-formaldehyde resin adhesives. Adhesives are used in the production of new furniture, decoration and laying of walls and floors. Wherever adhesives are used in large quantities, there will always be formaldehyde release. In addition, some chemical fiber carpets and paints also contain a certain amount of formaldehyde. The health hazards of formaldehyde mainly include the following aspects: a. Stimulation: the main hazard of formaldehyde is the stimulation of the skin and mucous membranes. Formaldehyde is a toxic substance in the original plasma, which can bind to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/72B01D53/02
CPCB01D53/007B01D53/02B01D53/8668
Inventor 柯锐
Owner ANHUI KEPU ENVIRONMENT TECH CO LTD
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