CN111184022A - Plant extract sterilizing disinfectant and preparation method thereof - Google Patents

Plant extract sterilizing disinfectant and preparation method thereof Download PDF

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CN111184022A
CN111184022A CN202010090027.XA CN202010090027A CN111184022A CN 111184022 A CN111184022 A CN 111184022A CN 202010090027 A CN202010090027 A CN 202010090027A CN 111184022 A CN111184022 A CN 111184022A
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extract
castor oil
lemon
disinfectant
plant extract
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李奇斌
吴芳
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Hangzhou Qlzw Environmental Technology Co ltd
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Hangzhou Qlzw Environmental Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/06—Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
    • A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N61/00—Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08—Magnoliopsida [dicotyledons]
    • A01N65/36—Rutaceae [Rue family], e.g. lime, orange, lemon, corktree or pricklyash
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/013—Deodorant compositions containing animal or plant extracts, or vegetable material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Agronomy & Crop Science (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Botany (AREA)
  • Inorganic Chemistry (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fats And Perfumes (AREA)

Abstract

The invention discloses a plant lifterThe preparation method of the extract disinfectant comprises extracting effective components of natural plants by supercritical extraction, and mixing with part of chemicals to achieve deodorizing, sterilizing and disinfecting effects. The key points of the technical scheme are as follows: the plant extract disinfectant comprises hypochlorous acid, fendorin, fructus Citri Limoniae extract, hydrogenated castor oil, sodium polyacrylate and sodium carboxymethylcellulose; the preparation method of the plant extract sterilizing disinfectant comprises the following steps: firstly, preparing lemon extract by supercritical extraction method, wherein the extractant adopts CO2Adding stabilizer into the extractant, adding NaOH and NaCO into the separator3To obtain a pure lemon extract; then preparing hydrogenated castor oil; and finally, adding the prepared lemon extract and hydrogenated castor oil into a mixed solution of hypochlorous acid and fendorin, and then adding sodium polyacrylate and sodium carboxymethylcellulose to complete the preparation of the plant extract sterilizing disinfectant.

Description

Plant extract sterilizing disinfectant and preparation method thereof
Technical Field
The invention relates to the technical field of sterilization and deodorization, in particular to a plant extract sterilization disinfectant and a preparation method thereof.
Background
In recent years, the industry of China is rapidly developed, people live more various, social service organizations tend to be perfect, and large-scale farms are rapidly developed, but meanwhile, odor generated by industrial wastewater, domestic garbage and livestock and poultry excrement also brings serious troubles to people and serious pollution to the environment, so that the problem that the odor pollution in living environments, refuse landfills, sewage treatment plants and livestock farms is eliminated is necessarily solved.
At present, the disinfectant is a simple method for eliminating odor, and is widely used in the fields of food and medicine, solid waste treatment, sewage treatment, garbage station, breeding plant and the like for deodorization, air purification and the like, and the disinfectant mainly comprises the following types: physical disinfectants, chemical disinfectants, microbial disinfectants, and the like. The physical disinfectant is used for deodorization by a physical method, and only the local concentration of the odor is changed by utilizing the physical property of the disinfectant or the odor without changing the odor components, such as masking the odor by using natural aromatic oil, spices and other substances; the chemical disinfectant is used for changing generated malodorous substances into odorless substances by utilizing oxidation, reductive decomposition, neutralization reaction, addition reaction, condensation reaction, ion exchange reaction and the like so as to eliminate odor; the microbial disinfectant is a process of absorbing malodorous substances in dissolved water into microorganisms by utilizing the microorganisms and degrading the malodorous substances through the metabolic activity of the microorganisms.
However, the existing disinfectants still have the following defects:
1. the existing disinfectant cannot better eliminate and cover odor molecules generating the odor, so that the odor in the air is seriously remained, and the duration time of the deodorization effect is short.
2. The existing disinfectant has a single effect, generally only can simply cover or eliminate odor, but substances generating foul odor often carry certain toxic substances, bacteria and other harmful elements, and if the harmful substances cannot be removed, the existing disinfectant can harm people in the environment.
3. In particular, the flow of people in public washrooms is large, pathogenic bacteria are often bred, and if the air is not deodorized and sterilized in time, influenza viruses and the like (airborne diseases) can be spread and infected, so that the air in public washrooms and other occasions needs stricter disinfection standards.
Disclosure of Invention
The invention aims to provide a plant extract disinfectant and a preparation method thereof, which adopts a supercritical extraction method to extract effective components in natural plants and mixes part of chemical medicines to achieve the effects of deodorization, sterilization and disinfection.
In order to achieve the purpose, the invention adopts the following technical scheme:
a plant extract disinfectant comprises hypochlorous acid, fendorin, fructus Citri Limoniae extract, hydrogenated castor oil, sodium polyacrylate and sodium carboxymethylcellulose; the extraction method of the lemon extract is supercritical extraction.
A preparation method of a plant extract sterilizing disinfectant comprises the following steps:
1) preparation of lemon extract:
1.1) pretreatment: cutting the prepared lemon into fine particles;
1.2) placing the granular lemon fragments in an extractor (1) of a supercritical extraction device;
1.3) adopting a high-pressure pump (2) and a heater (3) to convert an extracting agent from a normal-temperature normal-pressure state into a supercritical fluid state, wherein the extracting agent adopts CO2；
1.3.1) to supercritical CO2Polysiloxane for enhancing stability and dispersity of supercritical fluid is added into extractant to avoid CO2Gasifying;
1.4) CO to be in the supercritical state2Introducing into an extractor (1), the extracted substances are dissolved from the lemon fragment sample and are accompanied by CO2Entering a separator (5);
1.5) for CO in supercritical state entering the separator (5)2Reducing the temperature under reduced pressure to extract substances and CO2Gas-liquid separation is realized;
1.5.1) adding NaOH and HCl to the separator (5), NaOH being able to completely remove the residual CO from the solution2To generate NaCO3Solid, excess NaOH and NaCO3Can react with HCl to generate NaCl, and can reduce the microbial activity in the extracted substances by improving the osmotic pressure and avoid the deterioration of the lemon extract;
1.6) filtering the separated plant liquid to remove NaCl and residual NaCO3Solidifying to obtain pure lemon extract;
1.7) finally collecting the extracted substances by using a relevant container.
2) Preparing hydrogenated castor oil;
3) and mixing the prepared lemon extract and hydrogenated castor oil, adding the mixture into a mixed solution of hypochlorous acid and fendorin, and then adding sodium polyacrylate and sodium carboxymethylcellulose to complete the preparation of the plant extract sterilizing disinfectant.
Compared with the prior art, the plant extract sterilizing disinfectant and the preparation method thereof adopting the technical scheme have the following beneficial effects:
firstly, various effective substances contained in the lemon extract not only have strong and fragrant smell, but also have certain sterilization and disinfection effects, so that the odor of the foul odor can be covered, and various microorganisms which partially emit the foul odor can be eliminated, thereby achieving the effect of eliminating the odor from the source; in addition, pathogenic bacteria often exist in odor sources in certain environments (such as hospitals, public toilets, breeding plants and the like), so the plant extract sterilizing disinfectant can achieve the effect of preventing diseases such as influenza and the like by killing the pathogenic bacteria.
Secondly, the supercritical extraction preparation method adopted by the plant extract sterilizing disinfectant adopts a single extracting agent which is easy to obtain, the extraction process is simple, components with different polarities can be extracted out sequentially by changing the temperature and the pressure of the extracting agent, and the plant extract sterilizing disinfectant has a good separation effect, is beneficial to reducing the production cost and improving the economic benefit.
Preferably, the formula of the plant extract sterilizing disinfectant is 15% of hypochlorous acid, 15% of fendorin, 50% of lemon extract, 13% of hydrogenated castor oil, 6% of sodium polyacrylate and 1% of sodium carboxymethyl cellulose, experiments prove that 50% of lemon extract has a better deodorizing effect and a better sterilizing effect, and 13% of hydrogenated castor oil, 6% of sodium polyacrylate and 1% of sodium carboxymethyl cellulose can provide better thickening, emulsifying and slow-release effects and prevent the disinfectant solution from foaming or coagulating.
Preferably, the lemon extract comprises lemon essential oil, citric acid and sodium citrate, the lemon essential oil has strong and fragrant smell, the citric acid has high acidity and sterilization effect, and the sodium citrate is an excellent complexing agent and emulsifier and can improve the stability of the solution.
Preferably, the mass ratio of the lemon essential oil to the citric acid to the sodium citrate is 1:3:3, and the lemon extract in the ratio can ensure that each component exerts the effect and is beneficial to reducing raw material waste.
Preferably, the hydrogenated castor oil is PEG-40 hydrogenated castor oil, and the PEG-40 hydrogenated castor oil is a medical grade solubilizer, has wide pH stability and is not easy to generate foams.
Preferably, in step 1.3), the high-pressure pump is adjusted to different temperatures and pressures, and the pressure and temperature are used for CO in the supercritical state for components with different polarities2The target component is selectively extracted depending on the solubility of the component (b).
Preferably, a circulating pump is additionally arranged in the preparation process, and the following steps are added after the step 5):
1.5.1) CO after gas-liquid separation2By recirculation pumpSecondary to the high pressure pump, which pumps CO2Converting into supercritical state again and entering the extractor for secondary extraction;
1.5.2) repeating step 1.5.1) two to four times.
The recycling extraction is beneficial to completely extracting the target component from the raw material, thereby reducing the investment of production cost.
Preferably, in step 1.4), the extracted material is dissolved from the lemon fragment sample and enters a heater for preventing condensation of the solution along with CO2, and then enters a separator.
Preferably, in step 2), the hydrogenated castor oil is prepared by the following steps:
2.1) preparing castor oil with the water content of less than 0.2% and the acid value of less than 0.5, preheating the castor oil to be more than 130 ℃, and introducing the preheated castor oil into a hydrogenation tank;
2.2) preparing hydrogen with the purity of 98 percent or more, introducing the hydrogen into a hydrogenation tank, and setting the gauge pressure of the introduced hydrogen to be 0.180-0.200 MPa;
2.3) keeping the temperature in the hydrogenation tank between 150 ℃ and 180 ℃ for 8-10 h;
2.4) after the hydrogenation is finished, introducing cold water into the hydrogenation tank by using a heat exchanger for cooling, and adjusting the pressure of hydrogen to 0.100-0.150 MPa;
2.5) pressing the castor oil into a filter press for filtering and collecting to obtain the hydrogenated castor oil.
Drawings
FIG. 1 is a process flow chart of the preparation method of the novel plant extract disinfectant.
Reference numerals: 1. an extractor; 2. a high pressure pump; 3. a first heater; 4. a second heater; 5. a separator; 6. CO22A storage tank; 7. a storage tank; 8. a circulation pump; 9 sample collection bottle.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The formula of the plant extract sterilizing disinfectant comprises the following components: 15% of hypochlorous acid, 15% of fendorin, 50% of lemon extract, 13% of PEG-40 hydrogenated castor oil, 6% of sodium polyacrylate and 1% of sodium carboxymethyl cellulose, wherein the lemon extract comprises lemon essential oil, citric acid and sodium citrate, and the ratio of the lemon essential oil to the citric acid to the sodium citrate is 1:3: 3. The lemon essential oil has strong and aromatic smell, the citric acid has high acidity and a bactericidal effect, the sodium citrate is an excellent complexing agent and emulsifier and can improve the stability of the solution, and the lemon extract with the ratio of 1:3:3 can ensure that each component can exert the effect and is beneficial to reducing the waste of raw materials.
Experiments prove that 50% of lemon extract has an ideal deodorization effect and a good sterilization effect, 13% of PEG-40 hydrogenated castor oil, 6% of sodium polyacrylate and 1% of sodium carboxymethylcellulose can provide good thickening, emulsifying and slow-release effects, and prevent a disinfectant solution from foaming or coagulating.
The preparation method of the plant extract sterilizing disinfectant comprises the following steps:
1) as shown in figure 1, the supercritical extraction method is adopted to extract the lemon extract, and the specific operation steps are as follows:
1.1) pretreatment: cutting the prepared lemon into fine particles;
1.2) placing the granular lemon fragments in an extractor 1 of a supercritical extraction device;
1.3) adopting a high-pressure pump 2 and a heater 3 to convert an extracting agent from a normal temperature and normal pressure state into a supercritical fluid state, wherein the extracting agent adopts CO2；
1.3.1) to supercritical CO2Polysiloxane for enhancing stability and dispersity of supercritical fluid is added into extractant to avoid CO2Gasifying;
1.4) CO to be in the supercritical state2Introducing into extractor 1, dissolving the extracted substances from the lemon fragment sample with CO2Entering a separator 5;
1.5) for the supercritical CO entering the separator 52Reducing the temperature under reduced pressure to extract substances and CO2Gas-liquid separation is realized;
1.5.1) feeding NaOH andHCl and NaOH can completely remove residual CO in the solution2To generate NaCO3Solid, excess NaOH and NaCO3Can react with HCl to generate NaCl, and can reduce the microbial activity in the extracted substances by improving the osmotic pressure and avoid the deterioration of the lemon extract;
1.6) filtering the separated plant liquid to remove NaCl and residual NaCO3Solidifying to obtain pure lemon extract;
1.7) finally collecting the extracted substances by using a relevant container.
2) Preparation of hydrogenated castor oil:
2.1) preparing castor oil with the water content of less than 0.2% and the acid value of less than 0.5, preheating the castor oil to be more than 130 ℃, and introducing the preheated castor oil into a hydrogenation tank;
2.2) preparing hydrogen with the purity of 98 percent or more, introducing the hydrogen into a hydrogenation tank, and setting the gauge pressure of the introduced hydrogen to be 0.180-0.200 MPa;
2.3) keeping the temperature in the hydrogenation tank between 150 ℃ and 180 ℃ for 8-10 h;
2.4) after the hydrogenation is finished, introducing cold water into the hydrogenation tank by using a heat exchanger for cooling, and adjusting the pressure of hydrogen to 0.100-0.150 MPa;
2.5) pressing the castor oil into a filter press for filtering and collecting to obtain the hydrogenated castor oil.
3) And mixing the prepared lemon extract and hydrogenated castor oil, adding the mixture into a mixed solution of hypochlorous acid and fendorin, and then adding sodium polyacrylate and sodium carboxymethylcellulose to complete the preparation of the plant extract sterilizing disinfectant.
In the step 1.3) above, the high-pressure pump 2 and the first heater 3 can be adjusted to different pressures and temperatures, and the components with different polarities can be subjected to CO supercritical state by using the pressures and temperatures2The solubility of the components is different (for example, when the pressure is higher, the solubility of the component with higher polarity is higher, and at the moment, the component with higher polarity is dissolved in the supercritical fluid and is taken out to complete the separation with other components), and the target component is selectively extracted; the recycling extraction is favorable for completely extracting the target component from the raw material, thereby reducing the investment of production cost。
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims (10)

1. A plant extract disinfectant is characterized in that: the plant extract sterilizing disinfectant comprises hypochlorous acid, fendorin, lemon extract, hydrogenated castor oil, sodium polyacrylate and sodium carboxymethylcellulose; the extraction method of the lemon extract is supercritical extraction.
2. The plant extract disinfectant as claimed in claim 1, wherein: the formula of the plant extract sterilizing disinfectant comprises 15% of hypochlorous acid, 15% of fendorin, 50% of lemon extract, 13% of hydrogenated castor oil, 6% of sodium polyacrylate and 1% of sodium carboxymethylcellulose.
3. The plant extract disinfectant as claimed in claim 1, wherein: the lemon extract comprises lemon essential oil, citric acid and sodium citrate.
4. The plant extract disinfectant as claimed in claim 3, wherein: the mass ratio of the lemon essential oil to the citric acid to the sodium citrate is 1:3: 3.
5. The plant extract disinfectant as claimed in claim 1, wherein: the hydrogenated castor oil adopts PEG-40 hydrogenated castor oil.
6. The preparation method of the plant extract sterilizing disinfectant is characterized by comprising the following steps:
1) preparation of lemon extract:
1.1) pretreatment: cutting the prepared lemon into fine particles;
1.2) placing the granular lemon fragments in an extractor (1) of a supercritical extraction device;
1.3) adopting a high-pressure pump (2) and a heater (3) to convert an extracting agent from a normal-temperature normal-pressure state into a supercritical fluid state, wherein the extracting agent adopts CO2；
1.3.1) to supercritical CO2Polysiloxane for enhancing stability and dispersity of supercritical fluid is added into extractant to avoid CO2Gasifying;
1.4) CO to be in the supercritical state2Introducing into an extractor (1), the extracted substances are dissolved from the lemon fragment sample and are accompanied by CO2Entering a separator (5);
1.5) for CO in supercritical state entering the separator (5)2Reducing the temperature under reduced pressure to extract substances and CO2Gas-liquid separation is realized;
1.5.1) adding NaOH and HCl to the separator (5), NaOH being able to completely remove the residual CO from the solution2To generate NaCO3Solid, excess NaOH and NaCO3Can react with HCl to generate NaCl, and can reduce the microbial activity in the extracted substances by improving the osmotic pressure and avoid the deterioration of the lemon extract;
1.6) filtering the separated plant liquid to remove NaCl and residual NaCO3Solidifying to obtain pure lemon extract;
1.7) finally collecting the extracted substances by using a relevant container.
2) Preparing hydrogenated castor oil;
3) and mixing the prepared lemon extract and hydrogenated castor oil, adding the mixture into a mixed solution of hypochlorous acid and fendorin, and then adding sodium polyacrylate and sodium carboxymethylcellulose to complete the preparation of the plant extract sterilizing disinfectant.
7. The method for preparing the plant extract disinfectant as claimed in claim 6, wherein: in the step 3), the extracting agent is adjusted to different temperatures and pressures by adopting a high-pressure pump (2) and a heater (3), and components with different polarities are subjected to CO supercritical state by utilizing the pressures and the temperatures2The difference in solubility in (A) is selected fromThe target component is selectively extracted.
8. The method for preparing the plant extract disinfectant as claimed in claim 6, wherein: a circulating pump (8) is additionally arranged in the preparation process, and the following steps are added after the step 1.5):
1.5.1) CO after gas-liquid separation2Re-enters the high-pressure pump (2) through the circulating pump (8), and CO is discharged by the high-pressure pump (2)2Converting into supercritical state again and entering the extractor (1) for secondary extraction;
1.5.2) repeating step 5.1) two to four times.
9. The method for preparing the plant extract disinfectant as claimed in claim 6, wherein: in step 1.4), the extracted substances are dissolved from the lemon chip sample and CO is carried along2First into a heater for preventing the solution from condensing and then into a separator (5).
10. The method for preparing a plant extract disinfectant as claimed in claim 6, wherein, in the step 2), the hydrogenated castor oil is prepared by the following steps:
2.1) preparing castor oil with the water content of less than 0.2% and the acid value of less than 0.5, preheating the castor oil to be more than 130 ℃, and introducing the preheated castor oil into a hydrogenation tank;
2.2) preparing hydrogen with the purity of 98 percent or more, introducing the hydrogen into a hydrogenation tank, and setting the gauge pressure of the introduced hydrogen to be 0.180-0.200 MPa;
2.3) keeping the temperature in the hydrogenation tank between 150 ℃ and 180 ℃ for 8-10 h;
2.4) after the hydrogenation is finished, introducing cold water into the hydrogenation tank by using a heat exchanger for cooling, and adjusting the pressure of hydrogen to 0.100-0.150 MPa;
2.5) pressing the castor oil into a filter press for filtering and collecting to obtain the hydrogenated castor oil.
CN202010090027.XA 2020-02-13 2020-02-13 Plant extract sterilizing disinfectant and preparation method thereof Withdrawn CN111184022A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115226713A (en) * 2022-07-20 2022-10-25 东莞仁雪生物科技有限公司 Hypochlorous acid disinfectant and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115226713A (en) * 2022-07-20 2022-10-25 东莞仁雪生物科技有限公司 Hypochlorous acid disinfectant and preparation method thereof

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