CN111849647A - Oil removing agent - Google Patents
Oil removing agent Download PDFInfo
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- CN111849647A CN111849647A CN202010814020.8A CN202010814020A CN111849647A CN 111849647 A CN111849647 A CN 111849647A CN 202010814020 A CN202010814020 A CN 202010814020A CN 111849647 A CN111849647 A CN 111849647A
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- polyoxyethylene ether
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Abstract
The invention provides an oil removing agent, and relates to the technical field of cleaning agents. The oil remover comprises the following components in parts by weight: 3.32-6.64 parts of sodium fatty alcohol-polyoxyethylene ether sulfate, 0.8-1.6 parts of flaky sodium hydroxide, 1.92-3.84 parts of citric acid, 0.8-1.6 parts of sodium bicarbonate and 100-200 parts of water. The degreasing agent provided by the invention has the advantages that the degreasing agent provided by the invention enhances the degreasing performance and the application range of the degreasing agent by adopting the fatty alcohol-polyoxyethylene ether sodium sulfate and citric acid-sodium citrate buffer system with a thermal fixed proportion, and can quickly and thoroughly remove oil stains.
Description
Technical Field
The invention relates to the technical field of cleaning agents, and particularly relates to an oil removing agent.
Background
Due to the unique cooking mode of China, a large amount of oil stains are accumulated in a kitchen in daily life. For example, during cooking, cooking and stir-frying food cause grease to evaporate and decompose, and a large amount of unsaturated aliphatic hydrocarbon mixture is oxidized in air to generate brown resin-like substances which are adhered to the surfaces of a range hood, a gas stove, an exhaust fan, a ceramic tile and the like, so that heavy grease is caused. Meanwhile, the oil dirt can adsorb some food residues, the food residues promote breeding of bacteria and mosquitoes, and the solidified food residues can increase the difficulty of removing dirt. In addition, because of the existing household structural layout, generally, along with the extension of the living time, oil stains can be accumulated on the equipment such as water heating household appliances by oil smoke in a kitchen, and meanwhile, the oil stains can corrode the metal surface, so that the metal surface is affected by oxygen and water vapor in the air, and finally rusts and corrodes the household appliances. Therefore, the requirements of people on the cleaning strength of heavy oil stains are high, the heavy oil stains are required to have the capability of removing the oil stains, can be quickly decontaminated, are convenient to use, and are safe and non-toxic to human bodies, weak in corrosivity and free of damage to appliances.
At present, according to the characteristics of kitchen oil stains, the cleaning products are roughly divided into three types:
1. strong alkali type: the strong alkali type cleaning agent has good capability of removing heavy oil stains, and has the defect that caustic soda in the strong alkali type cleaning agent has certain corrosivity on the surface of an appliance and the skin of a user, and harms the appliance to be cleaned and the skin of the user.
2. Solvent type: the solvent type cleaning agent has good wetting, penetrating, dissolving and emulsifying effects on polymer oil dirt, but organic solvents with high oil dirt removing efficiency have the defects of low flash point, high toxicity, flammability, strong pollution and the like.
3. Surfactant type: the surfactant type detergent removes oil stains by penetrating, emulsifying and solubilizing the oil stains. Such products are environmentally friendly but have poor detergency, complex formulations and high cost.
Therefore, it is necessary to develop a kitchen degreaser having a strong capability of removing oil and dirt, bacteria growing thereon, rust generated by corrosion, and the like.
Disclosure of Invention
The invention aims to provide an oil removing agent which can rapidly and thoroughly remove oil stains and is environment-friendly.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
The embodiment of the application provides an oil removing agent, which comprises the following components in parts by weight: 3.32-6.64 parts of sodium fatty alcohol-polyoxyethylene ether sulfate, 0.8-1.6 parts of flaky sodium hydroxide, 1.92-3.84 parts of citric acid, 0.8-1.6 parts of sodium bicarbonate and 100-200 parts of water.
In summary, compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:
the degreasing agent provided by the invention adopts a non-anionic surfactant fatty alcohol polyoxyethylene ether sodium sulfate with good degradability, and the molecule has two hydrophilic groups with different properties, such as EO type hydrophilic segments, and has lower interfacial tension. When the sodium alcohol ether sulphate is added into water, the surface tension of the water is reduced, and a monomolecular film is formed on the water surface and covers the surface of the water. After the degreasing agent is sprayed on the oil dirt, lipophilic groups on the fatty alcohol-polyoxyethylene ether sodium sulfate are adsorbed on the surface of the oil dirt and are mutually soluble with the oil dirt, and due to the hydrophilicity of the hydrophilic groups, the degreasing agent can be well spread, moistened and permeated on the surface of the oil dirt, so that the interfacial tension is reduced, the adhesive force of the oil dirt and the surface of a metal matrix is reduced, the oil dirt is further stripped, the oil dirt enters the degreasing agent, the oil dirt is emulsified with water in the oil dirt, and the repeated adhesion of the oil dirt is avoided. Meanwhile, the flaky sodium hydroxide, the citric acid and the sodium bicarbonate are added into the oil remover, and a citric acid-sodium citrate buffer system is formed by the flaky sodium hydroxide, the citric acid and the sodium bicarbonate, so that the dissolving effect of the fatty alcohol-polyoxyethylene ether sodium sulfate on oil stains is effectively improved, a wider space is provided for the action of the fatty alcohol-polyoxyethylene ether sodium sulfate, the oil remover has a wider application range, and can be applied to more oil stain scenes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The embodiment of the application provides an oil removing agent, which comprises the following components in parts by weight: 3.32-6.64 parts of sodium fatty alcohol-polyoxyethylene ether sulfate, 0.8-1.6 parts of flaky sodium hydroxide, 1.92-3.84 parts of citric acid, 0.8-1.6 parts of sodium bicarbonate and 100-200 parts of water. The degreasing agent provided by the invention adopts a non-anionic surfactant fatty alcohol-polyoxyethylene ether sodium sulfate with good degradability, the molecule has two hydrophilic groups with different properties, such as EO type hydrophilic segments, and the surface tension of water is reduced after the fatty alcohol-polyoxyethylene ether sodium sulfate is added into water, and a monomolecular film is formed on the water surface and covers the surface of the water. After the degreasing agent is sprayed on the oil dirt, lipophilic groups on the fatty alcohol-polyoxyethylene ether sodium sulfate are adsorbed on the surface of the oil dirt and are mutually soluble with the oil dirt, and due to the hydrophilicity of the hydrophilic groups, the degreasing agent can be well spread, moistened and permeated on the surface of the oil dirt, so that the interfacial tension is reduced, the adhesive force of the oil dirt and the surface of a metal matrix is reduced, the oil dirt is further stripped, the oil dirt enters the degreasing agent, the oil dirt is emulsified with water in the oil dirt, and the repeated adhesion of the oil dirt is avoided. Meanwhile, the flaky sodium hydroxide, the citric acid and the sodium bicarbonate are added into the oil remover, and a citric acid-sodium citrate buffer system is formed by the flaky sodium hydroxide, the citric acid and the sodium bicarbonate, so that the dissolving effect of the fatty alcohol-polyoxyethylene ether sodium sulfate on oil stains is effectively improved, a wider space is provided for the action of the fatty alcohol-polyoxyethylene ether sodium sulfate, the oil remover has a wider application range, and can be applied to more oil stain scenes.
In some embodiments of the present invention, the oil remover further includes 4 to 6 parts by weight of fatty alcohol-polyoxyethylene ether.
In some embodiments of the present invention, the oil removing agent further comprises 0.8 to 1.2 parts by weight of lipase, 0.8 to 1.2 parts by weight of protease, and 0.8 to 1.2 parts by weight of cellulase. Kitchen oil stains are mainly formed by splashing vegetable oil, animal oil or tiny cooking dishes which are used daily, the traditional surfactant type oil remover generally dissolves the stains into an oil remover system, but bacteria are still easy to breed after the stains are discharged, and the subsequent treatment is troublesome. Therefore, by adding lipase, protease and cellulase, the oil dirt formed by vegetable oil, animal oil or tiny cooking dishes which splash outwards can be effectively dissolved and decomposed, and the difficulty of downstream waste treatment is reduced.
In some embodiments of the present invention, the oil remover further comprises 3 to 5 parts by weight of sodium tripolyphosphate. The sodium tripolyphosphate can have a complexing effect with metal ions such as Ca, Mg, Fe and the like dissolved in water to generate a soluble complex, so that the adsorption and dissolution capacity of the degreasing agent on oil dirt is improved.
In some embodiments of the present invention, the oil removing agent further comprises 1 to 2 parts by weight of sodium metasilicate pentahydrate. By adding sodium metasilicate pentahydrate, the using amount of sodium tripolyphosphate in the whole oil removing system is reduced, so that effective metal ions can be effectively complexed in the oil removing agent, oil dirt stripped by fatty alcohol-polyoxyethylene ether sodium sulfate is adsorbed and dissolved, the content of phosphorus in the oil removing agent can be reduced, and the difficulty in downstream wastewater treatment is reduced.
In some embodiments of the present invention, the oil remover further comprises 5 to 8 parts by weight of a biosurfactant. The environmental protection performance of the whole oil removing agent is further improved by adding the biosurfactant.
In some embodiments of the present invention, the biosurfactant in the oil remover is a fermentation extract of bacillus subtilis.
In some embodiments of the invention, the Bacillus subtilis THY-7 in the oil remover is Bacillus subtilis THY-7.
In some embodiments of the present invention, the oil remover comprises the following components in parts by weight: comprises the following components in parts by weight: 4.98 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 1.2 parts of flake sodium hydroxide, 2.88 parts of citric acid, 1.2 parts of sodium bicarbonate, 200 parts of water, 1 part of lipase, 1 part of protease, 1 part of cellulase, 2 parts of ethylene glycol monobutyl ether, 4 parts of sodium tripolyphosphate, 1.5 parts of sodium metasilicate pentahydrate, 5g of fatty alcohol-polyoxyethylene ether and 6 parts of fermentation extract of bacillus subtilis.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The purpose of this embodiment is to provide an oil removal agent.
The degreasing agent provided by the embodiment is prepared by the following steps:
(1) weighing 3.32g of sodium fatty alcohol-polyoxyethylene ether sulfate, 0.8g of flaky sodium hydroxide, 1.92g of citric acid, 0.8g of sodium bicarbonate and 200g of water for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, adding a fatty alcohol-polyoxyethylene ether sodium sulfate solution under stirring, uniformly stirring, and fully dispersing the fatty alcohol-polyoxyethylene ether sodium sulfate to obtain the degreasing agent.
Example 2
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 4.98g of fatty alcohol-polyoxyethylene ether sodium sulfate, 1.2g of flaky sodium hydroxide, 2.88g of citric acid, 1.2g of sodium bicarbonate and 150g of water for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, adding a fatty alcohol-polyoxyethylene ether sodium sulfate solution under stirring, uniformly stirring, and fully dispersing the fatty alcohol-polyoxyethylene ether sodium sulfate to obtain the degreasing agent.
Example 3
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 6.64g of sodium fatty alcohol-polyoxyethylene ether sulfate, 1.6g of flaky sodium hydroxide, 1.92g of citric acid, 1.6g of sodium bicarbonate and 100g of water for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, adding a fatty alcohol-polyoxyethylene ether sodium sulfate solution under stirring, uniformly stirring, and fully dispersing the fatty alcohol-polyoxyethylene ether sodium sulfate to obtain the degreasing agent.
Example 4
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 4.98g of sodium alcohol ether sulphate, 5g of alcohol ether, 1.2g of flake sodium hydroxide, 2.88g of citric acid, 1.2g of sodium bicarbonate and 180g of water according to the weight for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, adding a fatty alcohol-polyoxyethylene ether sodium sulfate solution and a fatty alcohol-polyoxyethylene ether solution under a stirring state, uniformly stirring, and fully dispersing the fatty alcohol-polyoxyethylene ether sodium sulfate to obtain the degreasing agent.
The oil removing agent is added with 4-6 g of fatty alcohol-polyoxyethylene ether, so that the oil removing agent system is dispersed and more stable, and preferably 5g of the oil removing agent system is added.
Example 5
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 4.98g of sodium alcohol ether sulphate, 5g of alcohol ether sulphate, 1.2g of flake sodium hydroxide, 2.88g of citric acid, 1.2g of sodium bicarbonate, 200g of water, 4g of sodium tripolyphosphate, 1.5g of sodium metasilicate pentahydrate and 2g of ethylene glycol monobutyl ether for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, and adding fatty alcohol-polyoxyethylene ether sodium sulfate and fatty alcohol-polyoxyethylene ether under stirring to obtain a mixed solution I;
(3) and adding 4g of sodium tripolyphosphate, 1.5g of sodium metasilicate pentahydrate and 2g of ethylene glycol monobutyl ether into the mixed solution I, uniformly stirring, and fully dispersing the sodium fatty alcohol-polyoxyethylene ether sulfate to obtain the degreasing agent.
Example 6
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 4.98g of sodium alcohol ether sulphate, 5g of alcohol ether sulphate, 1.2g of flake sodium hydroxide, 2.88g of citric acid, 1.2g of sodium bicarbonate, 200g of water, 3g of sodium tripolyphosphate, 1g of sodium metasilicate pentahydrate and 1g of ethylene glycol monobutyl ether for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, and adding fatty alcohol-polyoxyethylene ether sodium sulfate and fatty alcohol-polyoxyethylene ether under stirring to obtain a mixed solution I;
(3) and adding 3g of sodium tripolyphosphate, 1g of sodium metasilicate pentahydrate and 1g of ethylene glycol monobutyl ether into the mixed solution I, uniformly stirring, and fully dispersing the sodium fatty alcohol-polyoxyethylene ether sulfate to obtain the degreasing agent.
Example 7
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 4.98g of sodium alcohol ether sulphate, 5g of alcohol ether sulphate, 1.2g of flake sodium hydroxide, 2.88g of citric acid, 1.2g of sodium bicarbonate, 150g of water, 6g of sodium tripolyphosphate, 2g of sodium metasilicate pentahydrate and 3g of ethylene glycol monobutyl ether for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, and adding fatty alcohol-polyoxyethylene ether sodium sulfate and fatty alcohol-polyoxyethylene ether under stirring to obtain a mixed solution I;
(3) and adding 6g of sodium tripolyphosphate, 2g of sodium metasilicate pentahydrate and 3g of ethylene glycol monobutyl ether into the mixed solution I, uniformly stirring, and fully dispersing the sodium fatty alcohol-polyoxyethylene ether sulfate to obtain the degreasing agent.
Example 8
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 4.98g of sodium alcohol ether sulphate, 5g of alcohol ether, 1.2g of flake sodium hydroxide, 2.88g of citric acid, 1.2g of sodium bicarbonate and 200g of water for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, and adding fatty alcohol-polyoxyethylene ether sodium sulfate and fatty alcohol-polyoxyethylene ether under stirring to obtain a mixed solution I;
(3) and adding 4g of sodium tripolyphosphate, 1.5g of sodium metasilicate pentahydrate and 2g of ethylene glycol monobutyl ether into the mixed solution I, uniformly stirring, and fully dispersing the sodium fatty alcohol-polyoxyethylene ether sulfate to obtain the degreasing agent.
In order to improve the environmental protection performance of the oil removing agent, complex enzyme and biosurfactant are also added. Wherein the complex enzyme comprises 0.8g of lipase, 0.8g of protease, 0.8g of cellulase and 5g of fermentation extract of Bacillus subtilis, and the biosurfactant is fermentation extract of Bacillus subtilis THY-7, and the preparation method comprises the following steps: inoculating Bacillus subtilis THY-7 with OD 600 of 0.2 into a shake flask, shaking overnight, then inoculating the bacterial liquid in a fermentation tank into the fermentation tank according to the volume ratio of 1: 1000-1300, continuously fermenting for three days at 30 ℃, centrifuging to remove thallus precipitates, and thus obtaining the fermentation extract of the Bacillus subtilis.
Example 9
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 4.98g of sodium alcohol ether sulphate, 5g of alcohol ether, 1.2g of flake sodium hydroxide, 2.88g of citric acid, 1.2g of sodium bicarbonate and 200g of water for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, and adding fatty alcohol-polyoxyethylene ether sodium sulfate and fatty alcohol-polyoxyethylene ether under stirring to obtain a mixed solution I;
(3) adding 4g of sodium tripolyphosphate, 1.5g of sodium metasilicate pentahydrate and 2g of ethylene glycol monobutyl ether into the mixed solution I, stirring uniformly, fully dispersing the sodium fatty alcohol-polyoxyethylene ether sulfate,
and obtaining the degreasing agent.
In order to improve the environmental protection performance of the oil removing agent, complex enzyme and biosurfactant are also added. The composite enzyme comprises 1g of lipase, 1g of protease, 1g of cellulase and 6g of fermentation extract of Bacillus subtilis, and the biosurfactant is fermentation extract of Bacillus subtilis THY-7, and the preparation method comprises the following steps: inoculating Bacillus subtilis THY-7 with OD 600 of 0.2 into a shake flask, shaking overnight, then inoculating the bacterial liquid in a fermentation tank into the fermentation tank according to the volume ratio of 1: 1000-1300, continuously fermenting for three days at 30 ℃, centrifuging to remove thallus precipitates, and thus obtaining the fermentation extract of the Bacillus subtilis.
Example 10
The purpose of this embodiment is to provide an oil removal agent.
(1) Weighing 4.98g of sodium alcohol ether sulphate, 5g of alcohol ether, 1.2g of flake sodium hydroxide, 2.88g of citric acid, 1.2g of sodium bicarbonate and 200g of water for later use;
(2) dissolving citric acid in water, adding flaky sodium hydroxide, uniformly stirring, adding sodium bicarbonate, uniformly stirring, standing for 30min, and adding fatty alcohol-polyoxyethylene ether sodium sulfate and fatty alcohol-polyoxyethylene ether under stirring to obtain a mixed solution I;
(3) and adding 4g of sodium tripolyphosphate, 1.5g of sodium metasilicate pentahydrate and 2g of ethylene glycol monobutyl ether into the mixed solution I, uniformly stirring, and fully dispersing the sodium fatty alcohol-polyoxyethylene ether sulfate to obtain the degreasing agent.
In order to improve the environmental protection performance of the oil removing agent, complex enzyme and biosurfactant are also added. Wherein the complex enzyme comprises 1.2g of lipase, 1.2g of protease, 1.2g of cellulase and 8g of fermentation extract of Bacillus subtilis, the biosurfactant is fermentation extract of Bacillus subtilis THY-7, and the preparation method comprises the following steps: inoculating Bacillus subtilis THY-7 with OD 600 of 0.2 into a shake flask, shaking overnight, then inoculating the bacterial liquid in a fermentation tank into the fermentation tank according to the volume ratio of 1: 1000-1300, continuously fermenting for three days at 30 ℃, centrifuging to remove thallus precipitates, and thus obtaining the fermentation extract of the Bacillus subtilis.
In the embodiments 1-10, a small amount of essence such as 1-3 g can be added, and the smell of the oil removing agent can be adjusted by the essence, so as to meet the requirements of more people.
Test examples
The purpose of this test example was to verify the detergency of the oil-removing agent provided in the above examples.
The oil stain on the smoke exhaust ventilator or the water heating household appliance in the kitchen is scraped, and the stirring machine is used for uniformly stirring to prepare the oil stain which can not flow freely. Preparing clean stainless steel sheets with the same area and quality, coating the oil stains with the same quality and area on the stainless steel sheets, and drying to obtain the oil stain-containing base material. And then the base material containing the oil stain is respectively put into the degreasing agents provided in the embodiments 1 to 10 with the same volume, and the base material containing the oil stain is removed after 10 min. The soil release performance of the oil release agents provided in examples 1 to 10 is shown in table 1. As can be seen from table 1, the oil removers in examples 1 to 7 all had good detergency, and the detergency can reach 80% or more, but the differences were not significant. After the complex enzyme and the biosurfactant are added into the oil removing agent in the embodiments 8-10, the decontamination capability can be improved by 10% -15%.
TABLE 1
| Source of degreaser | Detergency ratio/%) |
| Example 1 | 83 |
| Example 2 | 81 |
| Example 3 | 82 |
| Example 4 | 84 |
| Example 5 | 86 |
| Example 6 | 85 |
| Example 7 | 86 |
| Example 8 | 91 |
| Example 9 | 96 |
| Example 10 | 95 |
The oil removing agent provided by the embodiment of the invention has the following advantages:
the non-anionic surfactant fatty alcohol-polyoxyethylene ether sodium sulfate with good degradability is used as a main component, and the molecule has two hydrophilic groups with different properties, such as EO type hydrophilic segments, and has lower interfacial tension. When the sodium fatty alcohol polyoxyethylene ether sulfate is added into water, the surface tension of the water can be reduced, and a monomolecular film is formed on the water surface and covers the surface of the water. After the degreasing agent provided by the embodiment of the invention is sprayed on oil dirt, lipophilic groups on the sodium alcohol ether sulfate are adsorbed on the surface of the oil dirt and are mutually soluble with the oil dirt, and due to the hydrophilicity of the hydrophilic groups, the degreasing agent can be well spread, moistened and permeated on the surface of the oil dirt, so that the interfacial tension of the oil dirt is reduced, the adhesion force of the oil dirt and the surfaces of substrates such as metal, ceramic tiles and the like is reduced, the oil dirt is further stripped, the oil dirt enters the degreasing agent to generate emulsification with water in the oil dirt, and the repeated adhesion of the oil dirt is avoided;
secondly, the flaky sodium hydroxide, the citric acid and the sodium bicarbonate with specific proportions are added into the oil removing agent provided by the embodiment of the invention to form a citric acid-sodium citrate buffer system, so that the dissolving effect of the fatty alcohol-polyoxyethylene ether sodium sulfate on oil stains is effectively improved, the pH of the oil removing agent is prevented from being changed in the process of the oil stains being dissolved into the oil removing agent, the function of active ingredients in the oil removing agent is hindered, a wider space is provided for the action of the fatty alcohol-polyoxyethylene ether sodium sulfate, and the oil removing agent has a wider application range and can be applied to more oil stain scenes;
thirdly, because the kitchen oil stain is mainly formed by splashing vegetable oil, animal oil or tiny cooking dishes which are used daily, the traditional surfactant type oil removing agent generally dissolves the dirt into an oil removing agent system, but bacteria are still easy to breed after the dirt is discharged, the subsequent treatment process is complex, and the treatment cost is high, so that the glycerol, the protein and the fibers in the oil stain formed by splashing the vegetable oil, the animal oil or the tiny cooking dishes can be effectively decomposed and dissolved by adding lipase, protease and cellulase, the difficulty and the treatment cost of downstream waste treatment are reduced, and the secondary pollution caused by the kitchen dirt is reduced;
and thirdly, the traditional oil removing agent can be complexed with metal ions such as Ca, Mg, Fe and the like dissolved in water only through sodium tripolyphosphate to generate a soluble complex, so that the adsorption and dissolution capacity of the oil removing agent on oil dirt is improved. By adding sodium metasilicate pentahydrate, the using amount of sodium tripolyphosphate in the whole oil removing system is reduced, so that effective metal ions can be effectively complexed in the oil removing agent, oil dirt stripped by fatty alcohol-polyoxyethylene ether sodium sulfate is adsorbed and dissolved, the content of phosphorus in the oil removing agent can be reduced, and the difficulty in downstream wastewater treatment is reduced.
Finally, the biosurfactant is an environment-friendly surfactant with larger research heat at present, a product after descaling, which is different from a chemical surfactant, is not easy to degrade and has corrosiveness on a base material or the skin of a user, active ingredients in the biosurfactant are easy to degrade and are environment-friendly, and the method is the core direction of the development of the following environment-friendly detergent, but the current life surfactant is still in a research and development stage, and the decontamination effect of the biosurfactant cannot reach the descaling effect of the traditional chemical surfactant. Therefore, the embodiment of the invention reduces the dosage of the chemical surfactant on the basis of ensuring the descaling effect of the whole oil remover by adding the biological surfactant from the fermentation extract of the bacillus subtilis, and further improves the environmental protection performance of the whole oil remover.
In conclusion, the degreasing agent provided by the embodiment of the invention has strong oil stain removing capability, can rapidly and thoroughly remove oil stains, is environment-friendly and degradable in waste liquid obtained after oil stain removal, reduces the difficulty of downstream treatment on kitchen cleaning waste liquid, reduces the risk of secondary pollution of the cleaning waste liquid, simplifies the subsequent treatment process, further reduces the cost of treating the kitchen cleaning waste liquid by a downstream program, and has environmental protection property far higher than that of similar products on the market.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. The oil remover is characterized by comprising the following components in parts by weight: 3.32-6.64 parts of sodium fatty alcohol-polyoxyethylene ether sulfate, 0.8-1.6 parts of flaky sodium hydroxide, 1.92-3.84 parts of citric acid, 0.8-1.6 parts of sodium bicarbonate and 100-200 parts of water.
2. The oil remover according to claim 1, further comprising 4-6 parts by weight of fatty alcohol-polyoxyethylene ether.
3. The oil remover according to claim 2, further comprising 0.8 to 1.2 parts by weight of a lipase, 0.8 to 1.2 parts by weight of a protease, and 0.8 to 1.2 parts by weight of a cellulase.
4. The oil remover according to claim 3, further comprising 3-5 parts by weight of sodium tripolyphosphate.
5. The oil remover according to claim 4, further comprising 1-2 parts by weight of sodium metasilicate pentahydrate.
6. The oil remover according to claim 5, further comprising 1-3 parts by weight of ethylene glycol monobutyl ether.
7. The oil remover according to claim 6, further comprising 5-8 parts by weight of a biosurfactant.
8. The oil remover according to claim 7, wherein the biosurfactant is a fermentation extract of Bacillus subtilis.
9. The oil remover according to claim 8, wherein the bacillus subtilis is bacillus subtilis THY-7.
10. The oil remover according to claim 9, characterized by comprising the following components in parts by weight: 4.98 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 1.2 parts of flake sodium hydroxide, 2.88 parts of citric acid, 1.2 parts of sodium bicarbonate, 200 parts of water, 1 part of lipase, 1 part of protease, 1 part of cellulase, 2 parts of ethylene glycol monobutyl ether, 4 parts of sodium tripolyphosphate, 1.5 parts of sodium metasilicate pentahydrate, 5g of fatty alcohol-polyoxyethylene ether and 6 parts of fermentation extract of bacillus subtilis.
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