CN111744354A - Preparation method of deodorant particles - Google Patents

Preparation method of deodorant particles Download PDF

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CN111744354A
CN111744354A CN202010643018.9A CN202010643018A CN111744354A CN 111744354 A CN111744354 A CN 111744354A CN 202010643018 A CN202010643018 A CN 202010643018A CN 111744354 A CN111744354 A CN 111744354A
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particles
mass ratio
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stirring
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马飞
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81Solid phase processes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/01Deodorant compositions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/52Hydrogen sulfide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/58Ammonia
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F289/00Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2209/00Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20Method-related aspects
    • A61L2209/21Use of chemical compounds for treating air or the like

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

The invention relates to a preparation method of deodorant particles, and belongs to the technical field of environmental protection. The invention takes peanut shell and coconut shell as basic raw materials, destroys the internal structure by steam explosion, improves the pore structure in the peanut shell and increases the active group on the surface, then mixes the peanut shell and the coconut shell with sodium hydroxide solution, reduces the cellulose content in the peanut shell and the coconut shell, increases the lignin exposure, further enlarges the pore structure, then mixes the peanut shell and the coconut shell with monomer to initiate polymerization, so that the formed polyacrylamide polymer wraps the particles, the surface of the particles has adsorption performance, improves the water resistance by utilizing vinyltriethoxysilane, then modifies by utilizing mixed auxiliary materials, so that the exposed lignin is crosslinked to form microspheres, the adsorption performance is enhanced, nano-porous zinc oxide is formed by utilizing the mixed materials and is adsorbed in the particles, the decomposition performance of the particles is improved, thereby obtaining deodorant particles.

Description

Preparation method of deodorant particles
Technical Field
The invention relates to a preparation method of deodorant particles, and belongs to the technical field of environmental protection.
Background
The malodorous substances refer to all gaseous substances which stimulate olfactory organs to cause unpleasant feeling and damage the living environment and the health of human bodies. With the economic development and social progress and the improvement of environmental protection consciousness, people put forward higher requirements on the quality of the atmosphere. Malodour has become one of seven public hazards in the world as an environmental pollution. Currently, there are several types of deodorization methods widely used: the basic principles and advantages and disadvantages of various deodorization techniques such as a perfume masking method, an adsorption method, a microbiological method and the like are compared as follows: the perfume masking method is not a true deodorization method because it improves people's feeling of the air of a place by spraying or volatilizing perfume into odor without removing offensive odor pollutants.
With the rapid development of economy in China, people gradually change from physical life to mental life, the tourism industry is rapidly developed, the number of public toilets in scenic spots is continuously increased, and control of malodorous smells in the toilets in scenic spots and treatment of excrement become important factors influencing sustainable development of scenic spots. Every year, the quantity of domestic garbage produced in urban and rural areas of China is about 3.7 hundred million tons, and the domestic garbage produces a large amount of stink in the stacking and transferring processes of garbage collection stations, thereby causing serious environmental pollution. The malodors contain various toxic and harmful components, wherein ammonia gas, hydrogen sulfide, mercaptan, methyl mercaptan and the like are main harmful gas components, the surrounding environment is seriously polluted by the emission of the malodors, and the body health is seriously injured after people inhale the malodors for a long time. Therefore, the implementation of the odor pollution control and management and the development of the research of removing the odor gas have important significance.
In order to solve the problems, people research and develop natural plant deodorant which is refined by extracting natural sterilization and deodorization factors from plants. No chemical substance is added, no toxic or side effect is caused to human bodies and livestock, and the use is safe. Has antibacterial, bactericidal and deodorant effects, and has good decomposition and removal effects on ammonia, hydrogen sulfide and other malodors. But the activity is lower, the permeability is poorer, the pollution cannot be eliminated fundamentally, the deodorization effect is poor, the lasting time is short, and the preparation cost is high.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problem of poor deodorization effect of the existing deodorant, the invention provides a preparation method of deodorization particles.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for preparing deodorant particles, comprising the steps of:
(1) carrying out ultrasonic oscillation on the pretreated particles, a sodium hydroxide solution and a surfactant according to the mass ratio of 8: 16-19: 1, filtering, collecting filter residues, mixing the filter residues with water according to the mass ratio of 3: 2-4, freeze-drying, and collecting freeze-dried substances;
(2) mixing the freeze-dried substance and the mixed solvent according to the mass ratio of 5: 10-13, putting the mixture into a reactor, regulating the pH to 10-13 under the protection of nitrogen, adding a mixed auxiliary material with the mass of 4-6% of the freeze-dried substance, heating and stirring;
(3) after stirring, cooling, standing, filtering, collecting a filter cake, drying, crushing, sieving, collecting sieved particles, mixing the sieved particles, a monomer and a sodium hydroxide solution according to a mass ratio of 5:1: 10-13, adding an initiator accounting for 1-3% of the mass of the monomer, heating, and stirring for reaction;
(4) after stirring, adjusting the pH value to be neutral, adding a mixture with the mass of 10-15% of that of the sieved particles, stirring, adding a template agent with the mass of 3-5% of that of the sieved particles and an auxiliary agent with the mass of 2-6% of that of the sieved particles, heating, stirring, and spray-drying to obtain the deodorant particles.
The preparation method of the pretreated particles in the step (1) comprises the following steps: crushing peanut shells and coconut shells according to the mass ratio of 4-6: 5, mixing the crushed particles with an ethanol solution according to the mass ratio of 3: 2-5, performing steam explosion, collecting the explosion products, filtering, and drying to obtain the pretreated particles.
The surfactant in the step (1) is any one of alkylphenol polyoxyethylene and polyoxyethylene alkylolamide.
And (3) mixing the solvent in the step (2) with cyclohexane and water according to a volume ratio of 1: 6-8 to obtain the composite material.
The mixed auxiliary material in the step (2) is prepared by mixing diisooctyl succinate sodium sulfonate and epoxy chloropropane according to the mass ratio of 3: 2-5.
The monomer in the step (3) is formed by mixing acrylamide and vinyl triethoxysilane according to the mass ratio of 9: 1-3.
The initiator in the step (3) is any one of ammonium persulfate and potassium persulfate.
The mixture in the step (4) is formed by mixing zinc acetate and titanium chloride according to the mass ratio of 8-11: 3.
The template agent in the step (4) is formed by mixing urea and hexamethylene hexamine according to the mass ratio of 1: 6.
The auxiliary agent in the step (4) is formed by mixing ethylenediamine and sodium citrate according to the mass ratio of 1: 10.
Compared with other methods, the method has the beneficial technical effects that:
the invention uses peanut shell and coconut shell as basic raw materials, destroys the internal structure by steam explosion, improves the pore structure in the peanut shell and increases the active group on the surface, then mixes the raw materials with sodium hydroxide solution, reduces the cellulose content in the peanut shell and coconut shell, increases the lignin exposure, further enlarges the pore structure, enhances the surface activity by using surfactant, then mixes the surfactant with monomer to initiate polymerization, so that the formed polyacrylamide polymer wraps the particles, the surface of the particles has adsorption property, improves the water resistance by using vinyltriethoxysilane, then modifies by using mixed auxiliary materials, makes the exposed lignin cross-linked to form microspheres similar to the micro-sphere, enhances the adsorption property, forms nano-porous zinc oxide by using the mixed materials and adsorbs the zinc oxide in the particles, the decomposition property of the granules is improved, thereby obtaining the deodorant granules.
Detailed Description
The preparation method of the pretreatment particles comprises the following steps: crushing peanut shells and coconut shells according to the mass ratio of 4-6: 5, mixing the crushed particles with 1.2mol/L ethanol solution according to the mass ratio of 3: 2-5, performing steam explosion, collecting the explosion product, filtering, and drying to obtain the pretreated particles.
The surfactant is any one of alkylphenol polyoxyethylene and polyoxyethylene alkylolamide.
The mixed solvent is prepared by mixing cyclohexane and water according to the volume ratio of 1: 6-8.
The mixed auxiliary material is prepared by mixing diisooctyl succinate sodium sulfonate and epoxy chloropropane according to the mass ratio of 3: 2-5.
The monomer is formed by mixing acrylamide and vinyl triethoxysilane according to the mass ratio of 9: 1-3.
The initiator is any one of ammonium persulfate and potassium persulfate.
The mixture is formed by mixing zinc acetate and titanium chloride according to the mass ratio of 8-11: 3.
The template agent is formed by mixing urea and hexamethylene hexamine according to the mass ratio of 1: 6.
The auxiliary agent is formed by mixing ethylenediamine and sodium citrate according to the mass ratio of 1: 10.
A method for preparing deodorant particles, comprising the steps of:
(1) carrying out ultrasonic oscillation on the pretreated particles, 1.5mol/L sodium hydroxide solution and a surfactant according to the mass ratio of 8: 16-19: 1 for 20min, filtering, collecting filter residues, uniformly mixing the filter residues and water according to the mass ratio of 3: 2-4, carrying out freeze drying, and collecting freeze-dried substances;
(2) mixing the freeze-dried substance and a mixed solvent according to a mass ratio of 5: 10-13, putting the mixture into a reactor, regulating the pH to 10-13 under the protection of nitrogen, adding a mixed auxiliary material accounting for 4-6% of the mass of the freeze-dried substance, heating to 80-90 ℃, and stirring for 3-5 hours;
(3) after stirring, cooling to room temperature, standing for 2h, filtering, collecting filter cakes, drying, crushing, sieving with a 100-mesh sieve, collecting sieved particles, mixing the sieved particles, monomers and 1.1mol/L sodium hydroxide solution according to a mass ratio of 5:1: 10-13, adding an initiator accounting for 1-3% of the mass of the monomers, heating to 65 ℃, and stirring for reaction for 5 h;
(4) after stirring, adjusting the pH value to be neutral, adding a mixture with the mass of 10-15% of that of the sieved particles, stirring for 1h, adding a template agent with the mass of 3-5% of that of the sieved particles and an auxiliary agent with the mass of 2-6% of that of the sieved particles, heating to 70-95 ℃, stirring for 5h, and spray drying to obtain the deodorant particles.
Example 1
The preparation method of the pretreatment particles comprises the following steps: crushing peanut shells and coconut shells according to the mass ratio of 6:5, mixing the crushed particles with 1.2mol/L ethanol solution according to the mass ratio of 3:5, performing steam explosion, collecting the explosion product, filtering and drying to obtain the pretreated particles.
The surfactant is any one of alkylphenol polyoxyethylene and polyoxyethylene alkylolamide.
The mixed solvent is prepared by mixing cyclohexane and water according to the volume ratio of 1: 8.
The mixed auxiliary material is prepared by mixing diisooctyl succinate sodium sulfonate and epoxy chloropropane according to the mass ratio of 3: 5.
The monomer is formed by mixing acrylamide and vinyl triethoxysilane according to the mass ratio of 9: 3.
The initiator is any one of ammonium persulfate and potassium persulfate.
The mixture is formed by mixing zinc acetate and titanium chloride according to the mass ratio of 11: 3.
The template agent is formed by mixing urea and hexamethylene hexamine according to the mass ratio of 1: 6.
The auxiliary agent is formed by mixing ethylenediamine and sodium citrate according to the mass ratio of 1: 10.
A method for preparing deodorant particles, comprising the steps of:
(1) carrying out ultrasonic oscillation on the pretreated particles, 1.5mol/L sodium hydroxide solution and surfactant according to the mass ratio of 8:19:1 for 20min, filtering, collecting filter residues, uniformly mixing the filter residues and water according to the mass ratio of 3:4, freeze-drying, and collecting freeze-dried substances;
(2) mixing the freeze-dried substance and the mixed solvent according to the mass ratio of 5:13, putting the mixture into a reactor, regulating the pH to 13 under the protection of nitrogen, adding a mixed auxiliary material with the mass of 6 percent of the freeze-dried substance, heating to 90 ℃, and stirring for 5 hours;
(3) after stirring, cooling to room temperature, standing for 2h, filtering, collecting filter cakes, drying, crushing, sieving with a 100-mesh sieve, collecting sieved particles, mixing the sieved particles, monomers and 1.1mol/L sodium hydroxide solution according to a mass ratio of 5:1:13, adding an initiator accounting for 3% of the mass of the monomers, heating to 65 ℃, and stirring for reaction for 5 h;
(4) after stirring, adjusting the pH value to be neutral, adding a mixture with the mass of 15% of that of the sieved particles, stirring for 1h, adding a template agent with the mass of 5% of that of the sieved particles and an auxiliary agent with the mass of 6% of that of the sieved particles, heating to 95 ℃, stirring for 5h, and spray-drying to obtain the deodorant particles.
Example 2
The preparation method of the pretreatment particles comprises the following steps: crushing peanut shells and coconut shells according to the mass ratio of 5:5, mixing the crushed particles with 1.2mol/L ethanol solution according to the mass ratio of 3:4, performing steam explosion, collecting the explosion product, filtering and drying to obtain the pretreated particles.
The surfactant is any one of alkylphenol polyoxyethylene and polyoxyethylene alkylolamide.
The mixed solvent is prepared by mixing cyclohexane and water according to the volume ratio of 1: 7.
The mixed auxiliary material is prepared by mixing diisooctyl succinate sodium sulfonate and epoxy chloropropane according to the mass ratio of 3: 3.
The monomer is formed by mixing acrylamide and vinyl triethoxysilane according to the mass ratio of 9: 2.
The initiator is any one of ammonium persulfate and potassium persulfate.
The mixture is formed by mixing zinc acetate and titanium chloride according to the mass ratio of 9: 3.
The template agent is formed by mixing urea and hexamethylene hexamine according to the mass ratio of 1: 6.
The auxiliary agent is formed by mixing ethylenediamine and sodium citrate according to the mass ratio of 1: 10.
A method for preparing deodorant particles, comprising the steps of:
(1) carrying out ultrasonic oscillation on the pretreated particles, 1.5mol/L sodium hydroxide solution and surfactant according to the mass ratio of 8:18:1 for 20min, filtering, collecting filter residues, uniformly mixing the filter residues and water according to the mass ratio of 3:3, freeze-drying, and collecting freeze-dried substances;
(2) mixing the freeze-dried substance and the mixed solvent according to the mass ratio of 5:12, putting the mixture into a reactor, regulating the pH to 12 under the protection of nitrogen, adding a mixed auxiliary material accounting for 5 percent of the mass of the freeze-dried substance, heating to 85 ℃, and stirring for 4 hours;
(3) after stirring, cooling to room temperature, standing for 2h, filtering, collecting filter cakes, drying, crushing, sieving with a 100-mesh sieve, collecting sieved particles, mixing the sieved particles, monomers and 1.1mol/L sodium hydroxide solution according to a mass ratio of 5:1:11, adding an initiator accounting for 2% of the mass of the monomers, heating to 65 ℃, and stirring for reaction for 5 h;
(4) after stirring, adjusting the pH value to be neutral, adding a mixture with the mass of 13% of that of the sieved particles, stirring for 1h, adding a template agent with the mass of 4% of that of the sieved particles and an auxiliary agent with the mass of 4% of that of the sieved particles, heating to 80 ℃, stirring for 5h, and spray-drying to obtain the deodorant particles.
Example 3
The preparation method of the pretreatment particles comprises the following steps: crushing peanut shells and coconut shells according to the mass ratio of 4:5, mixing the crushed particles with 1.2mol/L ethanol solution according to the mass ratio of 3:2, performing steam explosion, collecting the explosion product, filtering and drying to obtain the pretreated particles.
The surfactant is any one of alkylphenol polyoxyethylene and polyoxyethylene alkylolamide.
The mixed solvent is prepared by mixing cyclohexane and water according to the volume ratio of 1: 6.
The mixed auxiliary material is prepared by mixing diisooctyl succinate sodium sulfonate and epoxy chloropropane according to the mass ratio of 3: 2.
The monomer is formed by mixing acrylamide and vinyl triethoxysilane according to the mass ratio of 9: 1.
The initiator is any one of ammonium persulfate and potassium persulfate.
The mixture is formed by mixing zinc acetate and titanium chloride according to the mass ratio of 8: 3.
The template agent is formed by mixing urea and hexamethylene hexamine according to the mass ratio of 1: 6.
The auxiliary agent is formed by mixing ethylenediamine and sodium citrate according to the mass ratio of 1: 10.
A method for preparing deodorant particles, comprising the steps of:
(1) carrying out ultrasonic oscillation on the pretreated particles, 1.5mol/L sodium hydroxide solution and surfactant according to the mass ratio of 8:16:1 for 20min, filtering, collecting filter residues, uniformly mixing the filter residues and water according to the mass ratio of 3:2, freeze-drying, and collecting freeze-dried substances;
(2) mixing the freeze-dried substance and the mixed solvent according to the mass ratio of 5:10, putting the mixture into a reactor, regulating the pH to 10 under the protection of nitrogen, adding mixed auxiliary materials with the mass of 4% of the freeze-dried substance, heating to 80 ℃, and stirring for 3 hours;
(3) after stirring, cooling to room temperature, standing for 2h, filtering, collecting filter cakes, drying, crushing, sieving with a 100-mesh sieve, collecting sieved particles, mixing the sieved particles, the monomer and 1.1mol/L sodium hydroxide solution according to a mass ratio of 5:1:10, adding an initiator accounting for 1% of the mass of the monomer, heating to 65 ℃, and stirring for reaction for 5 h;
(4) after stirring, adjusting the pH value to be neutral, adding a mixture with the mass of 10% of that of the sieved particles, stirring for 1h, adding a template agent with the mass of 3% of that of the sieved particles and an auxiliary agent with the mass of 2% of that of the sieved particles, heating to 70 ℃, stirring for 5h, and spray-drying to obtain the deodorant particles.
Comparative example 1
The preparation method of the pretreatment particles comprises the following steps: crushing peanut shells and coconut shells according to the mass ratio of 5:5, mixing the crushed particles with 1.2mol/L ethanol solution according to the mass ratio of 3:4, performing steam explosion, collecting the explosion product, filtering and drying to obtain the pretreated particles.
The surfactant is any one of alkylphenol polyoxyethylene and polyoxyethylene alkylolamide.
The mixed solvent is prepared by mixing cyclohexane and water according to the volume ratio of 1: 7.
The mixed auxiliary material is prepared by mixing diisooctyl succinate sodium sulfonate and epoxy chloropropane according to the mass ratio of 3: 3.
The mixture is formed by mixing zinc acetate and titanium chloride according to the mass ratio of 9: 3.
The template agent is formed by mixing urea and hexamethylene hexamine according to the mass ratio of 1: 6.
The auxiliary agent is formed by mixing ethylenediamine and sodium citrate according to the mass ratio of 1: 10.
A method for preparing deodorant particles, comprising the steps of:
(1) carrying out ultrasonic oscillation on the pretreated particles, 1.5mol/L sodium hydroxide solution and surfactant according to the mass ratio of 8:18:1 for 20min, filtering, collecting filter residues, uniformly mixing the filter residues and water according to the mass ratio of 3:3, freeze-drying, and collecting freeze-dried substances;
(2) mixing the freeze-dried substance and the mixed solvent according to the mass ratio of 5:12, putting the mixture into a reactor, regulating the pH to 12 under the protection of nitrogen, adding a mixed auxiliary material accounting for 5 percent of the mass of the freeze-dried substance, heating to 85 ℃, and stirring for 4 hours;
(3) after stirring, cooling to room temperature, standing for 2h, filtering, collecting filter cakes, drying, crushing, sieving with a 100-mesh sieve, collecting sieved particles, mixing the sieved particles with 1.1mol/L sodium hydroxide solution according to a mass ratio of 5:11, heating to 65 ℃, and stirring for reaction for 5 h;
(4) after stirring, adjusting the pH value to be neutral, adding a mixture with the mass of 13% of that of the sieved particles, stirring for 1h, adding a template agent with the mass of 4% of that of the sieved particles and an auxiliary agent with the mass of 4% of that of the sieved particles, heating to 80 ℃, stirring for 5h, and spray-drying to obtain the deodorant particles.
Comparative example 2
Essentially the same as example 2, except that the blend was absent.
Comparative example 3
A commercially available natural plant deodorant. (the main components are mixed extracts of yucca, ginkgo leaves, tea polyphenol and grape seeds).
The deodorant of the above examples and comparative examples was put in a toilet and tested for 30min, wherein the indices of the deodorant in the toilet are 35ppm hydrogen sulfide, 90ppm ammonia and 4.2ppm methyl mercaptan. The specific test results are shown in table 1.
Table 1:
test items Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2 Comparative example 3
Methyl mercaptan (ppm) 0.012 0.010 0.011 0.077 0.089 0.12
NH3(ppm) 0.023 0.015 0.018 0.083 0.093 0.089
Hydrogen sulfide (ppm) 0.081 0.065 0.079 0.099 0.011 0.095
In sum, the deodorant disclosed by the invention is superior to the current products sold on the market in comprehensive performance, and is worthy of being popularized and used vigorously.

Claims (10)

1. A method for preparing deodorant particles, characterized in that the method comprises the steps of:
(1) carrying out ultrasonic oscillation on the pretreated particles, a sodium hydroxide solution and a surfactant according to the mass ratio of 8: 16-19: 1, filtering, collecting filter residues, mixing the filter residues with water according to the mass ratio of 3: 2-4, freeze-drying, and collecting freeze-dried substances;
(2) mixing the freeze-dried substance and the mixed solvent according to the mass ratio of 5: 10-13, putting the mixture into a reactor, regulating the pH to 10-13 under the protection of nitrogen, adding a mixed auxiliary material with the mass of 4-6% of the freeze-dried substance, heating and stirring;
(3) after stirring, cooling, standing, filtering, collecting a filter cake, drying, crushing, sieving, collecting sieved particles, mixing the sieved particles, a monomer and a sodium hydroxide solution according to a mass ratio of 5:1: 10-13, adding an initiator accounting for 1-3% of the mass of the monomer, heating, and stirring for reaction;
(4) after stirring, adjusting the pH value to be neutral, adding a mixture with the mass of 10-15% of that of the sieved particles, stirring, adding a template agent with the mass of 3-5% of that of the sieved particles and an auxiliary agent with the mass of 2-6% of that of the sieved particles, heating, stirring, and spray-drying to obtain the deodorant particles.
2. The method of producing deodorizing particles according to claim 1, wherein the method of producing the pretreating particles in the step (1): crushing peanut shells and coconut shells according to the mass ratio of 4-6: 5, mixing the crushed particles with an ethanol solution according to the mass ratio of 3: 2-5, performing steam explosion, collecting the explosion products, filtering, and drying to obtain the pretreated particles.
3. The method for preparing deodorant particles according to claim 1, wherein the surfactant in step (1) is any one of alkylphenol ethoxylates and polyoxyethylene alkylolamides.
4. The preparation method of the deodorant particles according to claim 1, wherein the mixed solvent in the step (2) is cyclohexane and water in a volume ratio of 1: 6-8.
5. The preparation method of the deodorant particles according to claim 1, wherein the mixing aid in the step (2) is prepared by mixing diisooctyl succinate sodium sulfonate and epichlorohydrin in a mass ratio of 3: 2-5.
6. The preparation method of the deodorant particles according to claim 1, wherein in the step (3), the monomer is formed by mixing acrylamide and vinyltriethoxysilane according to a mass ratio of 9: 1-3.
7. The method of producing deodorant particles according to claim 1 wherein the initiator in step (3) is any one of ammonium persulfate and potassium persulfate.
8. The preparation method of the deodorizing particles according to claim 1, wherein the mixture in the step (4) is prepared by mixing zinc acetate and titanium chloride according to a mass ratio of 8-11: 3.
9. The method for preparing deodorant particles according to claim 1, wherein the template agent in step (4) is a mixture of urea and hexamethylenehexamine in a mass ratio of 1: 6.
The preparation method of the deodorant particles according to claim 1, wherein the auxiliary agent in the step (4) is a mixture of ethylenediamine and sodium citrate at a mass ratio of 1: 10.
CN202010643018.9A 2020-07-07 2020-07-07 Preparation method of deodorant particles Pending CN111744354A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112592607A (en) * 2020-12-29 2021-04-02 成都芙涵麟涂料科技有限公司 Preparation method of filler for conductive coating
CN112827474A (en) * 2020-12-28 2021-05-25 浙江云上云科技有限公司 Preparation method of nano composite material with deodorization effect
CN113828099A (en) * 2021-10-09 2021-12-24 江苏东本环保工程有限公司 Coal-fired boiler flue gas purification process
CN114797410A (en) * 2022-04-18 2022-07-29 苏州金宏气体股份有限公司 Desulfurizing agent for purifying carbon dioxide and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112827474A (en) * 2020-12-28 2021-05-25 浙江云上云科技有限公司 Preparation method of nano composite material with deodorization effect
CN112592607A (en) * 2020-12-29 2021-04-02 成都芙涵麟涂料科技有限公司 Preparation method of filler for conductive coating
CN112592607B (en) * 2020-12-29 2022-01-11 惠州市七点光电科技有限公司 Preparation method of filler for conductive coating
CN113828099A (en) * 2021-10-09 2021-12-24 江苏东本环保工程有限公司 Coal-fired boiler flue gas purification process
CN114797410A (en) * 2022-04-18 2022-07-29 苏州金宏气体股份有限公司 Desulfurizing agent for purifying carbon dioxide and preparation method thereof

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