WO2022083085A1

WO2022083085A1 - Plant liquid-like environmentally friendly and efficient deodorant and preparation method therefor

Info

Publication number: WO2022083085A1
Application number: PCT/CN2021/089155
Authority: WO
Inventors: 吕凡; 何品晶; 邵立明; 章骅; 王锦雪
Original assignee: 同济大学
Priority date: 2020-10-19
Filing date: 2021-04-23
Publication date: 2022-04-28
Also published as: CN112402670A

Abstract

The present invention belongs to the technical field of deodorants, and a plant liquid-like environmentally friendly and efficient deodorant and a preparation method therefor are disclosed. The deodorant of the present invention comprises the following raw materials in parts by weight: 0.1-0.3 parts of sedanolide, 0.1-0.3 parts of trans-2,4-heptadienal, 0.3-0.7 parts of proline, 0.1-0.2 parts of isophorone, 0.5-1 parts of 3-acetyl-2,5-dimethylfuran, 1-3 parts of nobiletin, 0.1-5 parts of triethanolamine, 0.1-5 parts of diethanolamine, 5-10 parts of cinnamaldehyde, 0.1-0.3 parts of camphor, 6-10 parts of carvone, 0.1-0.3 parts of coumarin, 3-5 parts of p-hydroxybenzoic acid, 3-5 parts of ethylparaben, 0.1-0.5 parts of benzalacetone, 0.5-1 part of vanilline, 1-3 parts of anisaldehyde, 1-3 parts of methyl cinnamate, 2-5 parts of a surfactant, 2-4 parts of a cosurfactant, and 50-70 parts of a solvent. The deodorant of the present invention can effectively remove malodors in various environments, and can also effectively inhibit the breeding of mosquitoes and germs.

Description

A kind of plant liquid-like environmental protection and high-efficiency deodorant and preparation method thereof

technical field

The invention relates to an environmentally friendly and efficient deodorant similar to plant liquid and a preparation method thereof, belonging to the technical field of deodorants.

Background technique

Odor refers to all gaseous substances that stimulate the olfactory organs, cause unpleasantness and damage the living environment and human health. It usually includes the following 6 types of substances: nitrogen-containing substances, such as ammonia, trimethylamine, etc.; sulfur-containing substances, such as hydrogen sulfide, Methyl mercaptan, dimethyl disulfide, etc.; halogen-containing species, such as trichlorofluoromethane, dichloromethane, etc.; carbonyl-containing species, such as acetone, butanone, etc.; hydrocarbons, such as alkanes, olefins, aromatic hydrocarbons, etc.; Organic acids, such as valeric acid, isovaleric acid, etc. The source of its release mainly comes from industrial production and manufacturing, livestock and poultry breeding and some sanitation facilities, such as sewage treatment plants, domestic waste transfer stations, biomass aerobic/anaerobic treatment units, landfills, and domestic wastes generated in the process of household consumption. storage space and the body's own emissions. The odor threshold of malodorous substances is extremely low, so it is easy to be perceived by people's sense of smell, causing olfactory stimulation. In addition, malodorous substances will not only damage the environment, such as reducing stratospheric ozone, forming ground-level ozone through photochemical reactions, etc., but also harm the health of people exposed to malodorous environments through toxic and carcinogenic effects, for example, in a short period of time. Inhaling a large amount of hydrogen sulfide can damage the central nervous system, causing dizziness, headache, confusion, and even coma, delirium, transient fainting and other clinical symptoms; long-term exposure to ammonia gas, some people may experience skin pigmentation or finger ulcers and other symptoms , After being inhaled into the lungs, ammonia gas easily enters the blood through the alveoli, combines with hemoglobin, and then destroys the oxygen transport function. In addition, the foul odor will attract some mosquitoes, causing the growth and spread of germs. Some facilities, such as garbage collection buckets (boxes), transfer stations, public toilets, septic tanks, etc., are very close to residential areas, making people come into contact with odors a lot, while in other release scenarios, the occupational exposure time of staff is usually longer. . Therefore, odor control is currently a very important task in environmental protection.

At present, the technologies for treating malodorous gas can be divided into three categories: physical method, chemical method and biological method. Physical methods mainly include diffusion dilution, absorption, adsorption, condensation and membrane separation; chemical methods include absorption, combustion, plasma reaction, Fenton oxidation, photocatalytic oxidation, electrocatalytic oxidation and other technologies; biological methods degrade malodor (odor) through microbial metabolism substance. These technologies have their own characteristics, but at the same time they have their own limitations. Odor (peculiar smell) is composed of some substances with extremely low concentration (usually at ppb level), and its characteristic pollutants are mainly sulfur-containing and nitrogen-containing substances, while combustion methods, adsorption methods, biological methods, etc. Malodorous gas is more advantageous, and the cost is relatively small. Condensation and membrane treatment technologies have greater restrictions on gas flow, and it takes a long time to cultivate functional microorganisms by biological methods. In addition, the stench generated by landfills, sewage treatment plants and other places belongs to the non-point source release, and there is also the problem of whether the stench gas can be effectively collected.

Deodorants are widely used in the field of odor (odor) control because they can not only remove the odor from non-point sources by spraying, but also treat the odor gas collected in a centralized manner. However, most of the deodorants currently on the market, or the published deodorant patents, use the strong aroma of the deodorant to cover up the odor and do not remove the odor-causing compounds; some deodorants use sodium hypochlorite, hydrogen peroxide/ Strong oxidizing systems such as acid/ferrous ions remove odor-causing compounds through a violent chemical reaction. This kind of deodorant is usually expensive, and long-term use will corrode equipment. At the same time, some stabilizers are usually added to the deodorant. to ensure system stability. In addition, the removal efficiency of these deodorants for major odor-causing compounds such as sulfur is usually only 80-90%, and they are not suitable for non-point source odor control occasions that are in direct contact with the human body, failing to meet the requirements of health and environmental protection.

SUMMARY OF THE INVENTION

In view of the problems in the prior art, the present invention provides an environmentally friendly and efficient deodorant similar to plant liquid and a preparation method thereof. The deodorant has the characteristics of easy acquisition of raw materials, simple preparation method, low production cost, mild and environmental protection, and can efficiently remove malodors in various environments through reactions, with obvious deodorization and aroma enhancement effects, and the deodorant product does not harm the environment. cause secondary pollution. In addition, the deodorant can also repel mosquitoes and effectively inhibit the growth of germs.

For realizing the above technical purpose, the technical scheme of the present invention is:

An environmentally friendly and efficient deodorant similar to plant liquid, comprising the following raw materials in parts by weight: 0.1-0.3 parts of sedan, 0.1-0.3 parts of trans-2,4-heptadienal, and 0.3-0.7 parts of proline parts, 0.1-0.2 parts of isophorone, 0.5-1 parts of 3-acetyl-2,5-dimethylfuran, 1-3 parts of tangerine peel, 0.1-5 parts of triethanolamine, 0.1-5 parts of diethanolamine , 5-10 parts of cinnamaldehyde, 0.1-0.3 parts of camphor, 6-10 parts of carvone, 0.1-0.3 parts of coumarin, 3-5 parts of p-hydroxybenzoic acid, 3-5 parts of ethyl p-hydroxybenzoate, 0.1-0.5 parts of benzylidene acetone, 0.5-1 parts of vanillin, 1-3 parts of anisaldehyde, 1-3 parts of methyl cinnamate, 2-5 parts of surfactant, 2-4 parts of co-surfactant, solvent 50 to 70 servings.

Preferably, the surfactant is a mixture of fatty alcohol polyoxyethylene ether, monolunar silyl phosphate, and alcohol ether phosphate in a weight ratio of 2:1:1.

Preferably, the co-surfactant is a mixture of potassium laureth phosphate, cocoic acid diethanolamide, and cocamidopropyl betaine in a weight ratio of 1:1:2.

Preferably, the solvent is a mixture of ethanol, acetophenone, and deionized water in a weight ratio of 3:7:50.

A kind of preparation method of the environment-friendly and high-efficiency deodorant of plant-like liquid, comprising the following steps:

(1) ethanol and acetophenone are added to deionized water successively, wherein, the mass ratio of ethanol, acetophenone, deionized water is 3:7:50, and at room temperature, a magnetic stirrer is used with a rotating speed of 250～350rpm Stir for 4-6 min to obtain mixed solution A;

(2) 0.1-0.3 part of sedan, 0.1-0.3 part of trans-2,4-heptadienal, 0.3-0.7 part of proline, 0.1-0.2 part of isophorone, 0.5-1 part of Parts 3-acetyl-2,5-dimethylfuran, 1-3 parts of tetrameretin, 0.1-5 parts of triethanolamine, 0.1-5 parts of diethanolamine, 5-10 parts of cinnamaldehyde, 0.1-0.3 parts of camphor, 6-10 parts carvone, 0.1-0.3 parts coumarin, 3-5 parts p-hydroxybenzoic acid, 3-5 parts ethylparaben, 0.1-0.5 parts benzylidene acetone, 0.5-1 part vanilla Aldehyde, 1 to 3 parts of anisaldehyde, 1 to 3 parts of methyl cinnamate, 2 to 5 parts of surfactant, and 2 to 4 parts of co-surfactant were added to 50 to 70 parts of mixed solution A, and a magnetic stirrer was used at 30 Stirring at a constant temperature of ～40°C and a rotating speed of 180～230rpm for 25～35min to obtain a mixed solution B; the above parts are calculated in parts by mass;

(3) Transfer the mixed solution B to a homogenizer, and homogenize it for 3 to 8 minutes at a pressure of 10 MPa and a rotational speed of 4000 to 6000 rpm to obtain the target deodorant product.

As can be seen from the above description, the present invention has the following advantages:

(1) the deodorant of the present invention is mild and environmentally friendly, the raw materials are easy to obtain, the preparation method is simple, and the production cost is low, and it can efficiently remove malodors in various environments through the reaction, and the deodorization and aroma enhancement effect is obvious, and the deodorant product will not be harmful to the environment. It causes secondary pollution, can also drive away mosquitoes and effectively inhibit the growth of germs, and has high practical value and good application prospects.

(2) Serdan lactone, trans-2,4-heptadienal, proline, isophorone, 3-acetyl-2,5-dimethyl group added to the deodorant of the present invention Furan, teretin, triethanolamine, diethanolamine, cinnamaldehyde, camphor, carvone, coumarin, p-hydroxybenzoic acid, ethyl p-hydroxybenzoate, benzylidene acetone, vanillin, anisaldehyde, cinnamic acid The combined components of methyl ester can react with sulfur-containing and nitrogen-containing odorous substances, thereby removing odorous compounds and controlling odors from the source, and the products are salts and some low-volatile substances, which will not cause secondary pollution to the environment.

(3) The cinnamaldehyde added in the deodorant of the present invention can inhibit the generation of ammonia by inhibiting the activity of urease that catalyzes the hydrolysis of urea to generate ammonia, and at the same time, cinnamaldehyde, coumarin, p-hydroxybenzoic acid, p-hydroxybenzoic acid Ethyl esters have inhibitory effects on fungi, Escherichia coli, Bacillus subtilis, Staphylococcus aureus, Aspergillus flavus, and camphor and carvone can effectively repel mosquitoes, thereby effectively preventing the growth of pathogenic bacteria and further transmission through the air.

(4) cinnamaldehyde, camphor, carvone, coumarin, vanillin, anisaldehyde added in the deodorant of the present invention belong to natural substances, are harmless to the environment and the human body, and these components have a pleasant smell, which is After the malodorous substances, the environment can be scented for the malodor release.

Detailed ways

The features of the present invention are further described below through examples, but the claims of the present invention are not limited in any way.

Example 1:

(1) ethanol and acetophenone are added to deionized water successively, wherein, the mass ratio of ethanol, acetophenone, deionized water is 3:7:50, and at room temperature, use magnetic stirrer to stir 5min with the rotating speed of 300rpm , to obtain mixed solution A;

(2) 0.1 part of sedan, 0.1 part of trans-2,4-heptadienal, 0.3 part of proline, 0.1 part of isophorone, 0.5 part of 3-acetyl-2,5- Dimethylfuran, 1 part tangerine peel, 0.25 part triethanolamine, 0.25 part diethanolamine, 5 parts cinnamaldehyde, 0.1 part camphor, 6 parts carvone, 0.1 part coumarin, 3 parts p-hydroxybenzoic acid, 5 parts Parts ethylparaben, 0.3 parts benzylidene acetone, 0.8 parts vanillin, 2 parts anisaldehyde, 2 parts methyl cinnamate, 4 parts surfactant, 3 parts cosurfactant are added to 60 parts mixture In A, use a magnetic stirrer to stir at a constant temperature of 35°C and a rotating speed of 200rpm for 30min to obtain a mixed solution B; the above parts are calculated in parts by mass;

(3) Transfer the mixed solution B to a homogenizer, and homogenize it for 5 minutes at a pressure of 10 MPa and a rotation speed of 5000 rpm to obtain the target deodorant product.

The surfactant in this embodiment is a mixture of fatty alcohol polyoxyethylene ether, monolunar silicon-based phosphate, and alcohol ether phosphate in a weight ratio of 2:1:1;

The cosurfactant in this embodiment is a mixture of potassium lauryl ether phosphate, cocoic acid diethanolamide, and cocamidopropyl betaine in a weight ratio of 1:1:2.

The deodorant prepared in the present embodiment is used to remove hydrogen sulfide of different concentrations, and the specific steps are: the gas containing hydrogen sulfide (the concentration of hydrogen sulfide in the gas is respectively shown in Table 1) is continuously passed through at a rate of 2L/min. Enter the bubbling tower to make the gas volume in the bubbling tower 200L, and then spray 1.2L of deodorant into the bubbling tower. The removal rate of hydrogen sulfide is shown in Table 1.

Table 1

Example 2:

(2) 0.1 part of sedan, 0.2 part of trans-2,4-heptadienal, 0.4 part of proline, 0.1 part of isophorone, 0.6 part of 3-acetyl-2,5- Dimethylfuran, 1.2 parts of tangerine peel, 0.5 parts of triethanolamine, 0.5 parts of diethanolamine, 6 parts of cinnamaldehyde, 0.1 parts of camphor, 7 parts of carvone, 0.1 parts of coumarin, 4 parts of p-hydroxybenzoic acid, 5 parts of Parts ethylparaben, 0.3 parts benzylidene acetone, 0.8 parts vanillin, 2 parts anisaldehyde, 2 parts methyl cinnamate, 4 parts surfactant, 3 parts cosurfactant are added to 60 parts mixture In A, use a magnetic stirrer to stir at a constant temperature of 35°C and a rotating speed of 200rpm for 30min to obtain a mixed solution B; the above parts are calculated in parts by mass;

Different concentrations of hydrogen sulfide were removed by the same method as in Example 1, and the results are shown in Table 2.

Table 2

Example 3:

(2) 0.3 part of sedan, 0.3 part of trans-2,4-heptadienal, 0.6 part of proline, 0.2 part of isophorone, 1 part of 3-acetyl-2,5- Dimethylfuran, 3 parts of citrine, 1.25 parts of triethanolamine, 1.25 parts of diethanolamine, 8 parts of cinnamaldehyde, 0.2 parts of camphor, 8 parts of carvone, 0.2 parts of coumarin, 5 parts of paraben, 5 parts of paraben Parts ethylparaben, 0.3 parts benzylidene acetone, 0.8 parts vanillin, 2 parts anisaldehyde, 2 parts methyl cinnamate, 4 parts surfactant, 3 parts cosurfactant are added to 60 parts mixture In A, use a magnetic stirrer to stir at a constant temperature of 35°C and a rotating speed of 200rpm for 30min to obtain a mixed solution B; the above parts are calculated in parts by mass;

Different concentrations of hydrogen sulfide were removed by the same method as in Example 1, and the results are shown in Table 3.

table 3

It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effect; as long as it meets the needs of use, it is within the protection scope of the present invention.

Claims

An environmentally friendly and efficient deodorant similar to plant liquid, characterized in that it comprises the following raw materials in parts by weight: 0.1-0.3 parts of sedan, 0.1-0.3 parts of trans-2,4-heptadienal, 0.1-0.3 parts of proline 0.3-0.7 parts of acid, 0.1-0.2 parts of isophorone, 0.5-1 parts of 3-acetyl-2,5-dimethylfuran, 1-3 parts of tangerine peel, 0.1-5 parts of triethanolamine, diethanolamine 0.1-5 parts, 5-10 parts of cinnamaldehyde, 0.1-0.3 parts of camphor, 6-10 parts of carvone, 0.1-0.3 parts of coumarin, 3-5 parts of p-hydroxybenzoic acid, 3 parts of ethyl p-hydroxybenzoate ~5 parts, 0.1-0.5 parts of benzylidene acetone, 0.5-1 part of vanillin, 1-3 parts of anisaldehyde, 1-3 parts of methyl cinnamate, 2-5 parts of surfactant, 2-5 parts of co-surfactant 4 parts, 50-70 parts of solvent.
The environment-friendly and efficient deodorant of plant-like liquid as claimed in claim 1, is characterized in that, described surfactant is fatty alcohol polyoxyethylene ether, monosilyl phosphate, alcohol ether phosphate according to weight ratio 2: 1:1 composition of the mixture.
The environmentally friendly and efficient deodorant of plant-like liquid as claimed in claim 1, wherein the co-surfactant is potassium lauryl ether phosphate, cocoic acid diethanolamide, cocamidopropyl betaine according to A mixture of 1:1:2 by weight.
The environmentally friendly and efficient deodorant of plant-like liquid as claimed in claim 1, wherein the solvent is a mixture composed of ethanol, acetophenone and deionized water in a weight ratio of 3:7:50.
A kind of preparation method of the environment-friendly and high-efficiency deodorant of plant-like liquid, is characterized in that, comprises the following steps:

(1) ethanol and acetophenone are added to deionized water successively, wherein, the mass ratio of ethanol, acetophenone, deionized water is 3:7:50, and at room temperature, a magnetic stirrer is used with a rotating speed of 250～350rpm Stir for 4-6 min to obtain mixed solution A;

(2) 0.1-0.3 part of sedan, 0.1-0.3 part of trans-2,4-heptadienal, 0.3-0.7 part of proline, 0.1-0.2 part of isophorone, 0.5-1 part of Parts 3-acetyl-2,5-dimethylfuran, 1-3 parts of tetrameretin, 0.1-5 parts of triethanolamine, 0.1-5 parts of diethanolamine, 5-10 parts of cinnamaldehyde, 0.1-0.3 parts of camphor, 6-10 parts carvone, 0.1-0.3 parts coumarin, 3-5 parts p-hydroxybenzoic acid, 3-5 parts ethylparaben, 0.1-0.5 parts benzylidene acetone, 0.5-1 part vanilla Aldehyde, 1 to 3 parts of anisaldehyde, 1 to 3 parts of methyl cinnamate, 2 to 5 parts of surfactant, and 2 to 4 parts of co-surfactant were added to 50 to 70 parts of mixed solution A, and a magnetic stirrer was used at 30 Stirring at a constant temperature of ～40°C and a rotating speed of 180～230rpm for 25～35min to obtain a mixed solution B; the above parts are calculated in parts by mass;

(3) Transfer the mixed solution B to a homogenizer, and homogenize it for 3 to 8 minutes at a pressure of 10 MPa and a rotational speed of 4000 to 6000 rpm to obtain the target deodorant product.