Formaldehyde-removing smoke agent and preparation method thereof

An aerosol and formaldehyde technology, which is applied in the field of formaldehyde removal aerosol and its preparation, can solve the problems of unpleasant smell, difficult practical application, easy blocking of the nozzle of the fog machine, etc., and achieves a simple and easy-to-control production process and low cost. , the effect of simple use

Inactive Publication Date: 2017-06-13
南京双全科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Our research has found that when ordinary physical adsorption or chemical reaction method formaldehyde removal products are added to aerosols, they will produce unpleasant odors and easily block the nozzles of the aerosol machine, making it difficult to apply in practice

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0038] A kind of formaldehyde smoke removal agent and preparation method thereof, it comprises the following steps:

[0039] (1) Put dimethyl malonate or ethyl acetoacetate, diethylene glycol and catalyst into the reaction kettle in proportion;

[0040] (2) Connect a thermometer, water separator, condenser, mixer and heating jacket to the reactor;

[0041] (3) Turn on the mixer and the heating mantle, raise the temperature of the reaction kettle, and then react at a constant temperature until there is no distillate at the required temperature, and collect the distillate;

[0042] (4) Cool the collected fractions to room temperature, add glycerol and purified water, stir, and filter with a filter to obtain the formaldehyde-removing aerosol agent of the present invention.

Embodiment 1

[0045] Raw material formula:

[0046] Dimethyl malonate 10 parts

[0047] Diethylene glycol 8 parts

[0048] Glycerol 20 parts

[0049] Catalyst 0.01 parts

[0050] Purified water balance.

[0051] Put 10 parts of dimethyl malonate, 8 parts of diethylene glycol, and 0.01 parts of catalyst into the reactor; connect a thermometer, water separator, condenser, mixer and heating mantle to the reactor; turn on the mixer and heat Set the temperature of the reaction kettle to 95°C, keep the temperature at this temperature for 4 hours until there is no slip-out, and collect the fraction; cool the collected fraction to room temperature, add glycerol and purified water, stir evenly, and filter it with a filter. Obtaining the formaldehyde-removing aerosol agent of the present invention with a pH of 6.7.

Embodiment 2

[0053] Raw material formula:

[0054] 13 parts ethyl acetoacetate

[0055] Diethylene glycol 10 parts

[0056] Glycerol 30 parts

[0057] Catalyst 0.01 parts

[0058] Purified water balance.

[0059]13 parts of ethyl acetoacetate, 10 parts of diethylene glycol and 0.01 part of catalyzer are put into the reactor; connect thermometer, water separator, condenser, agitator and heating mantle on the reactor; open the agitator and heating mantle, Raise the temperature of the reaction kettle to 95°C, keep the temperature at this temperature for 4 hours until there is no slip-out, and collect the fractions; cool the collected fractions to room temperature, add glycerol and purified water, stir well, and filter with a filter to obtain PH 6.7 is the formaldehyde-removing aerosol agent of the present invention.

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PUM

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Abstract

The invention provides a formaldehyde-removing smoke agent and a preparation method thereof. The formaldehyde-removing smoke agent provided by the invention comprises the following components: 0 to 15 parts of dimethyl malonate, 0 to 15 parts of ethyl acetoacetate, 0.8 to 12 parts of diglycol, 5 to 30 parts of glycerol, 0.005 to 0.1 part of a catalyst and the balance of pure water. The invention also provides the preparation method of the formaldehyde-removing smoke agent. The preparation method comprises the following steps: putting dimethyl malonate or ethyl acetoacetate, diglycol and the catalyst into a reaction kettle according to a ratio, heating, performing constant-temperature reaction, collecting fractions, cooling to room temperature, and adding glycerol and the balance of pure water to obtain the formaldehyde-removing smoke agent provided by the invention. The formaldehyde-removing smoke agent provided by the invention can be applied to pollution treatment of the environment inside a living room or a vehicle and can react with formaldehyde rapidly to fulfill the aim of removing the formaldehyde pollution. The formaldehyde-removing smoke agent is low in product cost, simple in process operation and convenient to use, and avoid corrosion pollution.

Description

technical field [0001] The invention relates to a formaldehyde-removing aerosol agent and a preparation method thereof, belonging to the field of fine chemicals. Background technique [0002] For a long time, excessive formaldehyde has been a major cause of building syndrome, and it is very important to eliminate trace formaldehyde in indoor air. At present, there are many reports on how to remove formaldehyde in decoration materials and how to remove harmful formaldehyde in the air. , can be roughly divided into: physical adsorption method, chemical reaction method. [0003] The physical adsorption method mainly uses various porous substances to remove formaldehyde through physical adsorption. The most commonly used is activated carbon, in addition to molecular sieves, bentonite, powdered silicon, perlite, sepiolite and macroporous resins. However, it is difficult for gaseous aldehydes to be physically adsorbed by activated carbon, especially for low-concentration gases, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/33
CPCA62D3/33A62D2101/28
Inventor 王盛良王加吉储林梅潘文岚王圣钱
Owner 南京双全科技有限公司
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