CN108479346B - Green odorless formaldehyde scavenger - Google Patents
Green odorless formaldehyde scavenger Download PDFInfo
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- CN108479346B CN108479346B CN201810302335.7A CN201810302335A CN108479346B CN 108479346 B CN108479346 B CN 108479346B CN 201810302335 A CN201810302335 A CN 201810302335A CN 108479346 B CN108479346 B CN 108479346B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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Abstract
The invention relates to a formaldehyde scavenger comprising: 0.1-1.0% of edible gelatin, 1-5% of amino acid mixture, 1-3% of lemon extract, 1-3% of rose extract, 1-3% of chrysanthemum extract, 0.1-0.5% of phosphate mixture and the balance of water. The invention also relates to a preparation method of the formaldehyde scavenger, which comprises the steps of weighing the raw materials according to the weight ratio, adding the raw materials into a reaction kettle, stirring, dissolving and standing. The formula of the formaldehyde scavenger is completely food-grade raw materials, the pH value of the product is 6.5-8.5, and the formaldehyde scavenger has no harm to human bodies and furniture surfaces and no secondary pollution; secondly, the formaldehyde scavenger can rapidly react with formaldehyde at room temperature, and the effective removal rate reaches over 80 percent; the peculiar smell can be quickly covered and eliminated; and the reaction product is easy to dissolve in water, can be wiped and removed by a wet towel, and is convenient to clean.
Description
Technical Field
The invention belongs to the technical field of air purification, and particularly relates to a formaldehyde scavenger mainly used for indoor green odor purification.
Background
Formaldehyde is used as a solvent with strong adhesion, can enhance the hardness of the board, and has the functions of insect prevention and corrosion prevention, so that the formaldehyde is widely applied to furniture and decoration materials. Along with the further improvement of the living standard of people, the application amount of indoor decoration materials is increased day by day, the phenomenon that the concentration of formaldehyde in indoor air exceeds the standard is very common, and serious threat is generated to the human health of residents. Toxicological analysis proves that formaldehyde is a high-toxicity protoplasm substance, can damage DNA in cells, causes non-programmed DNA synthesis in the cells, causes gene mutation of the cells, and has strong carcinogenic effect on animals.
At present, methods for removing formaldehyde at home and abroad are mainly divided into a physical method and a chemical method, the physical method mainly utilizes physical adsorption and other methods to remove formaldehyde, the price is low, the application range is wide, but the formaldehyde removal efficiency is low; the chemical method is mainly characterized in that formaldehyde is removed and air is purified by developing a formaldehyde catching agent through reaction principles of oxidation, decomposition, complexation and the like, and the method has the characteristics of quick effect, multiple types and high technical threshold and is more and more concerned by people. However, such chemically obtained formaldehyde scavengers may often present new pollution problems.
Therefore, the chemical method for removing formaldehyde is the most concerned about safety of users. The current research shows that the biomass formaldehyde catching agent is mainly nontoxic to the environment and human body due to being derived from natural biomass, is easily biodegraded, does not generate secondary pollution and the like, is more and more concerned by researchers, and has wide development prospect.
Disclosure of Invention
The invention aims to provide a formaldehyde scavenger which is safe and efficient and has a smell removing function, so that the aim of safely, environmentally, quickly and efficiently removing formaldehyde is fulfilled, and the formaldehyde scavenger can be popularized and applied to various formaldehyde removing requirements indoors and outdoors.
Therefore, the invention provides the following technical scheme:
a formaldehyde scavenger comprising, in weight percent: 0.1-1.0% of edible gelatin, 1-5% of amino acid mixture, 1-3% of lemon extract, 1-3% of rose extract, 1-3% of chrysanthemum extract, 0.1-0.5% of phosphate mixture and the balance of water.
Further, the formaldehyde scavenger consists of 0.5% of edible gelatin, 3% of amino acid mixture, 1% of lemon extract, 1% of rose extract, 1% of chrysanthemum extract, 0.5% of phosphate mixture and 93% of deionized water.
Specifically, the amino acid mixture refers to a mixture of low molecular weight active amino acids, such as glycine, alanine, proline, which are mainly used for removing formaldehyde and can rapidly react with formaldehyde. In the present invention, the ratio between the three amino acids is preferably 2: 2: 1.
the edible gelatin can cooperate with the amino acid mixture to react with formaldehyde, so that the reaction efficiency is improved, and the formaldehyde removal effect is improved.
The lemon extract, rose extract and chrysanthemum extract are prepared by a low-temperature ultrasonic water extraction method, contain glycosides, polyphenol and flavonoids, can quickly cover peculiar smell, and can promote the reaction of amino acid and formaldehyde.
The phosphate mixture is a mixture containing sodium tripolyphosphate, sodium pyrophosphate and sodium hexametaphosphate, and the pH value of a 1% aqueous solution is 8.0, so that the pH value of the solution is adjusted to be alkalescent, the reaction efficiency is further improved, and the formaldehyde removal effect is enhanced.
In another aspect, the present invention also provides a preparation method of the formaldehyde scavenger, which comprises:
(1) weighing edible gelatin, amino acid mixture, lemon extract, rose extract and chrysanthemum extract according to the weight ratio, and adding deionized water;
(2) adding the weighed raw materials into a reaction kettle, slowly adding a phosphate mixture, and stirring at normal temperature until the phosphate mixture is dissolved;
(3) after standing, a light green transparent formaldehyde scavenger is obtained.
Preferably, in step (2), stirring is carried out at ambient temperature for 25-40min, preferably 30 min.
Preferably, in step (3), the mixture is allowed to stand for at least 30min, preferably 30-40 min.
The formaldehyde scavenger obtained by the invention is light green transparent liquid, and is sprayed by an atomization spraying pot when in use. The formaldehyde generates solid powdery methylol compound after meeting the formaldehyde scavenger, and the methylol compound is fixed on the surface of an object and can be wiped by clear water.
After each batch is produced, the quality guarantee period is about two years.
The invention has the beneficial effects that: the formula of the scavenger is completely food-grade raw materials, the pH value of the product is 6.5-8.5, and the scavenger has no harm to human bodies and furniture surfaces and no secondary pollution; secondly, the formaldehyde scavenger can rapidly react with formaldehyde at room temperature, and the effective removal rate reaches over 80 percent; the peculiar smell can be quickly covered and eliminated; and the reaction product is easy to dissolve in water, can be wiped and removed by a wet towel, and is convenient to clean.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example 1
The formaldehyde scavenger is prepared by the following method:
obtaining of amino acid mixture: the commercial food-grade amino acid raw materials are prepared from glycine, alanine and proline according to the proportion of 2: 2: 1, mixing.
Obtaining of lemon extract, rose extract and chrysanthemum extract: the pH value of the lemon extract is between 1.0 and 2.5, the pH value of the rose extract is between 4.0 and 6.5, and the pH value of the chrysanthemum extract is between 3.5 and 6.0.
Obtaining a phosphate mixture: the commercially available food-grade raw materials are prepared from the following raw materials in a ratio of 1: 1: 1, mixing. .
Production of 100 kg of formaldehyde scavenger:
(1) weighing 0.5 kg of edible gelatin, 3 kg of amino acid mixture, 1 kg of lemon extract, 1 kg of rose extract and 1 kg of chrysanthemum extract, and adding 93 kg of deionized water;
(2) adding the weighed raw materials into a reaction kettle, slowly adding 0.5 kg of phosphate mixture, and stirring at normal temperature for 30min until the raw materials are dissolved;
(3) standing for 30min to obtain light green transparent formaldehyde scavenger.
Example 2
An amino acid mixture, a lemon extract, a rose extract, a chrysanthemum extract and a phosphate mixture were prepared in the same manner as in example 1 above.
Production of 100 kg of formaldehyde scavenger:
(1) weighing 0.1 kg of edible gelatin, 1 kg of amino acid mixture, 3 kg of lemon extract, 2 kg of rose extract and 3 kg of chrysanthemum extract, and adding 90.8 kg of deionized water;
(2) adding the weighed raw materials into a reaction kettle, slowly adding 0.5 kg of phosphate mixture, and stirring at normal temperature for 25min until the raw materials are dissolved;
(3) standing for 30min to obtain light green transparent formaldehyde scavenger.
Example 3
An amino acid mixture, a lemon extract, a rose extract, a chrysanthemum extract and a phosphate mixture were prepared in the same manner as in example 1 above.
Production of 100 kg of formaldehyde scavenger:
(1) weighing 1 kg of edible gelatin, 5 kg of amino acid mixture, 2 kg of lemon extract, 1 kg of rose extract and 1 kg of chrysanthemum extract, and adding 89.5 kg of deionized water;
(2) adding the weighed raw materials into a reaction kettle, slowly adding 0.5 kg of phosphate mixture, and stirring at normal temperature for 40min until the raw materials are dissolved;
(3) standing for 40min to obtain light green transparent formaldehyde scavenger.
Comparative example 1
Amino acid mixture, lemon extract, rose extract, and chrysanthemum extract were prepared in the same manner as in example 1.
Production of 100 kg of formaldehyde scavenger:
(1) weighing 0.5 kg of edible gelatin, 3 kg of amino acid mixture, 1 kg of lemon extract, 1 kg of rose extract and 1 kg of chrysanthemum extract, and adding 93.5 kg of deionized water;
(2) adding the weighed raw materials into a reaction kettle, and stirring for 30min at normal temperature until the raw materials are dissolved;
(3) standing for 30min to obtain light green transparent formaldehyde scavenger control solution A.
The pH of control A was measured to be 6.3.
Comparative example 2
A mixture of lemon extract, rose extract, chrysanthemum extract and phosphate was prepared in the same manner as in example 1 above.
Preparation of amino acid mixture: the commercial food-grade amino acid raw materials are prepared from glutamic acid, serine and methionine according to the proportion of 1: 1: 1, mixing.
Production of 100 kg of formaldehyde scavenger:
(1) weighing 0.5 kg of edible gelatin, 3 kg of amino acid mixture, 1 kg of lemon extract, 1 kg of rose extract and 1 kg of chrysanthemum extract, and adding 93.5 kg of deionized water;
(2) adding the weighed raw materials into a reaction kettle, slowly adding 0.5 kg of phosphate mixture, and stirring at normal temperature for 30min until the raw materials are dissolved;
(3) standing for 30min to obtain light green transparent formaldehyde scavenger control solution B.
The formaldehyde removal rates of the formaldehyde scavengers of the above examples 1-3 and comparative examples 1-2 were determined according to QB/T2761-2006 standard, which specifically comprises the following steps:
the test conditions are as follows:
two air test chambers (A is a blank chamber and B is a sample chamber) are used for testing the concentration of the decontamination product for removing gas pollutants. An intelligent constant-current atmospheric sampler and an ultraviolet-visible spectrophotometer.
The test conditions were carried out at normal temperature and pressure F.
The test steps are as follows:
1) preparation of samples: 100g of the sample was sprayed onto 3 sheets of 1m2Spraying on the base paper for three times.
2) Preparation of the release source: a5-layer medical absorbent gauze was wound on 2 glass rods of 5mm diameter and 30cm length, fixed with cotton thread and placed upright in a 500mL reagent bottle, filled with 200mL of a contaminant (0.2% formaldehyde), and labeled with A1 and A2.
3) And (3) suspending untreated base paper in a blank test chamber A, and suspending the base paper sprayed with the purifying material in a test chamber B.
4) Containers with fitted contaminant release sources a1 and a2 were placed in blank test chamber a and sample test chamber B, respectively, and the chamber doors were immediately closed.
5) And (4) starting fans of the blank test chamber A and the sample test chamber B, stirring for 1mm, and then closing the fans.
6) After 24h of action, the concentration of air pollutants in the two chambers is sampled, analyzed and tested and recorded as CAAnd CB。
Calculating the formula:
removal rate y (%) ═ CA-CB)/CA*100％(CAIs the blank cell concentration, CBFor test chamber concentration)
The results are shown in the following table:
| example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | |
| Clearance rate of formaldehyde | 85.1％ | 80.9％ | 84.3％ | 63％ | 72％ |
From the results, the formaldehyde scavenging rate of the formaldehyde scavenger disclosed by the invention can reach 85.1% as high as possible, compared with the comparative example 1, the pH value has a relatively obvious influence on the formaldehyde scavenging effect, and compared with the comparative example 2, the amino acid type specifically selected by the invention is also favorable for improving the formaldehyde scavenging effect, so that the purpose of green formaldehyde scavenging is realized.
The above description has been made of only the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. It will be appreciated by those skilled in the art that any means which are the same or similar to achieve the technical effects of the invention should fall within the scope of the invention.
Claims (8)
1. A formaldehyde scavenger comprising, in weight percent: 0.1% -1.0% of edible gelatin, 1% -5% of amino acid mixture, 1% -3% of lemon extract, 1% -3% of rose extract, 1% -3% of chrysanthemum extract, 0.1% -0.5% of phosphate mixture and the balance of water, wherein the amino acid mixture is a mixture of glycine, alanine and proline, and the weight ratio of the glycine, the alanine and the proline is 2: 2: 1, the pH of the formaldehyde scavenger is between 6.5 and 8.5.
2. The formaldehyde scavenger according to claim 1, wherein the formaldehyde scavenger consists of 0.5% edible gelatin, 3% amino acid mixture, 1% lemon extract, 1% rose extract, 1% chrysanthemum extract, 0.5% phosphate mixture and 93% deionized water.
3. The formaldehyde scavenger according to claim 1 or 2, wherein the phosphate mixture is a mixture comprising sodium tripolyphosphate, sodium pyrophosphate and sodium hexametaphosphate, and the pH value of a 1% aqueous solution is 8.0.
4. A method of making the formaldehyde scavenger of any of claims 1-3, the method comprising:
(1) weighing edible gelatin, amino acid mixture, lemon extract, rose extract and chrysanthemum extract according to the weight ratio, and adding deionized water;
(2) adding the weighed raw materials into a reaction kettle, slowly adding a phosphate mixture, and stirring at normal temperature until the phosphate mixture is dissolved;
(3) after standing, a light green transparent formaldehyde scavenger is obtained.
5. The production method according to claim 4, wherein in the step (2), the stirring is carried out at normal temperature for 25 to 40 min.
6. The production method according to claim 5, wherein in the step (2), the stirring is carried out at normal temperature for 30 min.
7. The method according to claim 4, wherein in the step (3), the mixture is allowed to stand for at least 30 minutes.
8. The production method according to claim 7, wherein in the step (3), the mixture is allowed to stand for 30 to 40 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810302335.7A CN108479346B (en) | 2018-04-04 | 2018-04-04 | Green odorless formaldehyde scavenger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810302335.7A CN108479346B (en) | 2018-04-04 | 2018-04-04 | Green odorless formaldehyde scavenger |
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| CN108479346B true CN108479346B (en) | 2020-02-21 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109529608A (en) * | 2018-12-19 | 2019-03-29 | 舒沐科技(武汉)有限公司 | A kind of environment-friendly highly efficient photocatalyst formaldehyde scavenger with fragrance |
| CN110756008A (en) * | 2019-11-11 | 2020-02-07 | 高艳艳 | Formaldehyde scavenging agent, preparation method and use method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138671A (en) * | 2006-09-04 | 2008-03-12 | 张旭鹏 | Methylene oxide scavenging agent |
| CN103656955A (en) * | 2012-09-05 | 2014-03-26 | 中铁九局集团工程检测试验有限公司 | Environment-friendly high-efficiency formaldehyde scavenger |
| CN104645394A (en) * | 2013-11-25 | 2015-05-27 | 王沛强 | Refrigerator smell removal agent |
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2018
- 2018-04-04 CN CN201810302335.7A patent/CN108479346B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138671A (en) * | 2006-09-04 | 2008-03-12 | 张旭鹏 | Methylene oxide scavenging agent |
| CN103656955A (en) * | 2012-09-05 | 2014-03-26 | 中铁九局集团工程检测试验有限公司 | Environment-friendly high-efficiency formaldehyde scavenger |
| CN104645394A (en) * | 2013-11-25 | 2015-05-27 | 王沛强 | Refrigerator smell removal agent |
Non-Patent Citations (1)
| Title |
|---|
| 明胶对甲醛捕获条件的研究;仪淑敏等;《食品工业科技》;20151231;第36卷(第22期);第227-235页 * |
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