CN108751385A - Solid chlorine dioxide slow-release material and preparation method thereof - Google Patents
Solid chlorine dioxide slow-release material and preparation method thereof Download PDFInfo
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- CN108751385A CN108751385A CN201810372877.1A CN201810372877A CN108751385A CN 108751385 A CN108751385 A CN 108751385A CN 201810372877 A CN201810372877 A CN 201810372877A CN 108751385 A CN108751385 A CN 108751385A
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- chlorine dioxide
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- micro mist
- release material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/18—Vapour or smoke emitting compositions with delayed or sustained release
-
- 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
Abstract
The invention discloses a kind of solid chlorine dioxide slow-release materials and preparation method thereof, and raw material includes：Sodium chlorite, solid acid, carrier material, covering and adjuvant；The carrier material is aerosil micro mist；The adjuvant includes accelerating agent, stabilizer and binder.The present invention is loaded by aerosil micro mist, polymer overmold and accelerating agent are adjusted, and can realize the controllable of chlorine dioxide rate of release, and then have superior air purification effect；The present invention generates the mass transfer of chlorine dioxide chemical reaction process by control, realizes safety, long-term effect and the stability of material release chlorine dioxide；Product produced by the present invention is easy to use, can effectively remove air pollutants (such as formaldehyde), deodorization (H2S), sterilization, realize air purification, and safety and environmental protection, stable processing technique of the present invention is reliable, efficient, it is at low cost, it has good market prospects.
Description
Technical field
The present invention relates to chlorine dioxide slow-release Material Field, more particularly to a kind of solid chlorine dioxide slow-release material and its system
Preparation Method.
Background technology
With the increasingly raising of people's living standard, safeguard becomes particularly important suitable for living environment.Indoor air quality
It is closely bound up with people's lives, health.Chlorine dioxide is generally acknowledged in the world safe and nontoxic green disinfectant.It is strong using it
Oxidisability can be converted into nontoxic production by substances such as the harmful substances in air such as formaldehyde, foul smell, bacterium by chemical reaction
Object, therefore chlorine dioxide has good application prospect in air purification field.
Chlorine dioxide is used primarily for drinking water disinfection and food fresh keeping, however is limited using chlorine dioxide under liquid environment
Its application field.There are following difficult points for the use of chlorine dioxide：1. high concentration of chlorine dioxide gas has danger, easily
Explosion, biological or sucking can be lethal；2. the storage of gas, transport and inconvenient for use.Solid chlorine dioxide can then solve
Problem is stated, chlorine dioxide is made to be applied in terms of air disinfection and purification：The release of one side chlorine dioxide be it is controllable, therefore
Its concentration can be controlled, another aspect solid solves the problems, such as to store in use, it is not convenient to transport.
There are mainly of two types for solid chlorine dioxide in the prior art：Absorbent-type and response type.Absorbent-type is by titanium dioxide
Chlorine water solution is adsorbed on absorption carrier, and the rate of volatilization of chlorine dioxide is regulated and controled by structure and component, and then realizes titanium dioxide
The sustained release of chlorine.The shortcomings that such method, is that the rate of release of chlorine dioxide is larger by such environmental effects, poor controllability.Reaction
Type is to react to release chlorine dioxide in acid condition using chlorite, by controlling the reaction rate of the two, Jin Ershi
The sustained release of existing chlorine dioxide.Response type can be divided into unary form and binary form again according to the encapsulation condition of reactant, compared to binary
Type, unary form solid chlorine dioxide is more convenient to use, and stronger to the controllability of chlorine dioxide, clean-up effect is more lasting,
Therefore, unary form has more the market competitiveness.It is not easy to control, steady often to there is reaction rate in present chlorine dioxide slow-release material
The defects of qualitative poor, air purification effect is bad.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of solid dioxy
Change chlorine slow-release material and preparation method thereof.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of solid chlorine dioxide slow-release material,
Raw material includes：Sodium chlorite, solid acid, carrier material, covering and adjuvant；
The carrier material is aerosil micro mist；
The adjuvant includes accelerating agent, stabilizer and binder.
Preferably, the accelerating agent is anhydrous ferric trichloride, potassium peroxydisulfate, sodium dichloro cyanurate, glucose, Gao Meng
One or more of sour potassium, sodium chloride.
The present invention is loaded by aerosil micro mist, polymer overmold and accelerating agent are adjusted, and can realize dioxy
Change the controllable of chlorine rate of release, and then there is superior air purification effect.Wherein, aerosil micro mist is as negative
It carries, physical isolation is on the one hand formed, to control reaction rate；On the other hand, aerosil micro mist is nanoscale, is had
The features such as porous, large specific surface area, it is easy to the diffusion of reactive material.The addition of accelerating agent accelerates reaction rate for adjusting, and
It can intensified response stability.The physical isolation effect of aerosil micro mist can inhibit reaction rate, accelerating agent that can accelerate
Reaction rate can realize the bidirectional modulation of reaction rate by aerosil micro mist and accelerating agent, be matched by adjusting it
Than reaction rate can be controlled in optimum range, to keep the control effect of chlorine dioxide rate of release stronger, air can be promoted
Clean-up effect.
Preferably, the solid acid is one kind in citric acid, sulfamic acid, tartaric acid, oxalic acid, niter cake；Institute
It is gelatin, arabia gum powder, rosin, paraffin, polyvinylpyrrolidone, acrylic acid and methacrylic acid copolymer to state covering
One in object；The stabilizer is anhydrous calcium chloride or anhydrous magnesium sulfate, and the ingredient of the binder includes silica gel.
Preferably, the mass ratio of the sodium chlorite, solid acid, carrier material, covering and adjuvant is sodium chlorite：
Solid acid：Carrier material：Covering：Adjuvant=10:15:10-20:10-15:40-55；The accelerating agent, stabilizer and bonding
The mass ratio of agent is accelerating agent：Stabilizer：Binder=0.1-5:5-10：30-45.
A kind of preparation method of solid chlorine dioxide slow-release material, preparation process include aerosil micro mist system
It is standby, reactive material is immobilized, reactive material cladding and block prepare.
Preferably, the preparation process of the aerosil micro mist includes：
1) mixed liquor of ethyl orthosilicate, hydrochloric acid, water, ethanol solution is prepared, flowing back 2-4 hours at 120 DEG C, it is pre- to obtain
Aggressiveness；
2) it takes performed polymer to be diluted with n-hexane, ammonium hydroxide is added dropwise under room temperature, stirring condition, then stand to obtain gel；
3) it is stirred for crushing gel, then after the displacement of n-hexane solvent, constant pressure and dry obtains dioxy at 120-150 DEG C
SiClx aeroge micro mist.
Wherein, the stability of production can be effectively improved by adding technique prepared by intermediate product performed polymer, and can improved
The comprehensive performance of final product obtained.Constant pressure and dry obtains aerosil micro mist at 120-150 DEG C, can guarantee two
The porosity of silica aerogel micro mist.
Preferably, in the step 1) hydrochloric acid a concentration of 1mol/L, ethyl orthosilicate, hydrochloric acid, water, ethanol solution
Volume ratio is 10:0.01-0.5:0.5-5:200-500；A concentration of 1mol/L of ammonium hydroxide in the step 2), performed polymer, just oneself
The volume ratio of alkane and ammonium hydroxide is 100:500-1000:1-5, wherein time of repose are 2 hours.
Preferably, the immobilized step of the reactive material includes：Sodium chlorite and solid acid are each configured to quality
Sodium chlorite solution and the solid acid solution that score is 10-50%, then mixed respectively with aerosil micro mist, then pass through
Fluidized bed drying respectively obtains immobilized sodium chlorite and immobilized solid acid；
Wherein, the mass ratio of aerosil micro mist and sodium chlorite solution and with the mass ratio of solid acid solution it is
It is 3-4:1, control flow is 0.2-1kg/h in fluidized bed drying process, temperature is 60-90 DEG C.
Preferably, the step of reactive material cladding includes：It first prepares the ethanol solution of covering and is divided into two parts,
Immobilized sodium chlorite, stabilizer ultrasonic disperse are obtained into the first dispersion liquid in a copy of it ethanol solution, and by immobilized solid
Acid and accelerating agent ultrasonic disperse obtain the second dispersion liquid in another ethanol solution, then disperse the first dispersion liquid and second
Liquid respectively obtains the first microcapsules and the second microcapsules of powdery after fluidized bed drying；Wherein, the ethanol solution of covering
A concentration of 1-5g/mL, control flow is 0.5-5kg/h in fluidized bed drying process, temperature is 60-90 DEG C.
Preferably, the step of prepared by the block include：By first microcapsules are micro- and the second microcapsules and bonding
Agent is sufficiently mixed using homogenizer, and temperature control is pressed into white chunks product in a mold, wherein the temperature in control mold
It is 25-70 DEG C.
The present invention generates the mass transfer of chlorine dioxide chemical reaction process by control, realizes material release dioxy
Change safety, long-term effect and the stability of chlorine.
Its character of product produced by the present invention is white clumpy solid, easy to use, is only exposed to place in air, i.e.,
Chlorine dioxide can be slowly released, the oxidisability of chlorine dioxide, removal air pollutants (such as formaldehyde), deodorization are utilized
(H2S), it sterilizes, realizes air purification, safety and environmental protection.
The beneficial effects of the invention are as follows：The present invention passes through the load of aerosil micro mist, polymer overmold and rush
It is adjusted into agent, can realize the controllable of chlorine dioxide rate of release, and then there is superior air purification effect；The present invention passes through
Control generates the mass transfer of chlorine dioxide chemical reaction process, realizes the safety, long-acting of material release chlorine dioxide
Property and stability；Product produced by the present invention is easy to use, can effectively remove air pollutants (such as formaldehyde), deodorization (H2S), kill
Bacterium realizes air purification, and safety and environmental protection, and stable processing technique of the present invention is reliable, efficient, at low cost, has good city
Field foreground.
Specific implementation mode
With reference to embodiment, the present invention is described in further detail, to enable those skilled in the art with reference to specification
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more
The presence or addition of a other elements or combinations thereof.
A kind of solid chlorine dioxide slow-release material of the present embodiment, raw material include：Sodium chlorite, solid acid, carrier material
Material, covering and adjuvant；The carrier material is aerosil micro mist；The adjuvant include accelerating agent, stabilizer and
Binder.The accelerating agent is anhydrous ferric trichloride, potassium peroxydisulfate, sodium dichloro cyanurate, glucose, potassium permanganate, chlorination
One or more of sodium.
The solid acid is one kind in citric acid, sulfamic acid, tartaric acid, oxalic acid, niter cake；The covering is
One in gelatin, arabia gum powder, rosin, paraffin, polyvinylpyrrolidone, acrylic acid and methacrylic acid copolymer；
The stabilizer is anhydrous calcium chloride or anhydrous magnesium sulfate, and the ingredient of the binder includes silica gel.
The sodium chlorite, solid acid, carrier material, covering and adjuvant mass ratio be sodium chlorite：Solid acid：It carries
Body material：Covering：Adjuvant=10:15:10-20:10-15:40-55；The mass ratio of the accelerating agent, stabilizer and binder
For accelerating agent：Stabilizer：Binder=0.1-5:5-10:30-45.
The additive amount of wherein accelerating agent is selected according to actual needs, in one embodiment, may be selected not adding rush
Into agent.
The present invention also provides a kind of preparation method of solid chlorine dioxide slow-release material, step includes：
1, prepared by the aerosil micro mist：
1) mixed liquor of ethyl orthosilicate, hydrochloric acid, water, ethanol solution is prepared, flowing back 2-4 hours at 120 DEG C, it is pre- to obtain
Aggressiveness；A concentration of 1mol/L of hydrochloric acid, ethyl orthosilicate, hydrochloric acid, water, ethanol solution volume ratio be 10:0.01-0.5:0.5-
5:200-500；
2) it takes performed polymer to be diluted with n-hexane, ammonium hydroxide is added dropwise under room temperature, stirring condition, then stand 2 hours and obtain gel；
The volume ratio of a concentration of 1mol/L of ammonium hydroxide, performed polymer, n-hexane and ammonium hydroxide are 100:500-1000:1-5；
3) it is stirred for crushing gel, then after the displacement of n-hexane solvent, constant pressure and dry obtains dioxy at 120-150 DEG C
SiClx aeroge micro mist.
2, the reactive material is immobilized：Sodium chlorite and solid acid are each configured to the Asia that mass fraction is 10-50%
Sodium chlorate solution and solid acid solution, then mixed respectively with aerosil micro mist, then through fluidized bed drying, respectively
To immobilized sodium chlorite and immobilized solid acid；Wherein, the mass ratio of aerosil micro mist and sodium chlorite solution and with
The mass ratio of solid acid solution be 3-4:1, in fluidized bed drying process control flow be 0.2-1kg/h, temperature 60-90
℃。
3, the reactive material cladding：It first prepares the ethanol solution of covering and is divided into two parts, by immobilized sodium chlorite, surely
Determine agent ultrasonic disperse and obtain the first dispersion liquid in a copy of it ethanol solution, and by immobilized solid acid and accelerating agent ultrasonic disperse
The second dispersion liquid is obtained in another ethanol solution, then divides the first dispersion liquid and the second dispersion liquid after fluidized bed drying
The first microcapsules and the second microcapsules of powdery are not obtained；Wherein, a concentration of 1-5g/mL of the ethanol solution of covering, fluidisation
Control flow is 0.5-5kg/h in bed drying process, temperature is 60-90 DEG C.
4, prepared by block：By first microcapsules are micro- and the second microcapsules and binder it is fully mixed using homogenizer
It closes, temperature control is pressed into white chunks product in a mold, wherein the temperature in control mold is 25-70 DEG C.
The solid chlorine dioxide slow-release material of the present invention is mainly used for indoor air purification, and such as deodorization, sterilization, removal is indoor
Formaldehyde etc..
Specific embodiment presented below, with the invention will be further described.
Embodiment 1
A kind of solid chlorine dioxide slow-release material, raw material include：Sodium chlorite, solid acid, carrier material, covering and
Adjuvant；The carrier material is aerosil micro mist；The adjuvant includes accelerating agent, stabilizer and binder.It is described
Accelerating agent be anhydrous ferric trichloride, potassium peroxydisulfate, sodium dichloro cyanurate, glucose, potassium permanganate, one kind in sodium chloride or
It is several.The solid acid is one kind in citric acid, sulfamic acid, tartaric acid, oxalic acid, niter cake；The covering is bright
One in glue, arabia gum powder, rosin, paraffin, polyvinylpyrrolidone, acrylic acid and methacrylic acid copolymer；Institute
It is anhydrous calcium chloride or anhydrous magnesium sulfate to state stabilizer, and the ingredient of the binder includes silica gel.The sodium chlorite, solid
Acid, carrier material, covering and adjuvant mass ratio be 10:15:10:10:40；The accelerating agent, stabilizer and binder
Mass ratio is to promote 0.1:5:30.
The preparation method of the solid chlorine dioxide slow-release material, step include：
1, aerosil micro mist is prepared：
1) mixed liquor for preparing ethyl orthosilicate, hydrochloric acid, water, ethanol solution, flows back 2 hours at 120 DEG C and obtains pre-polymerization
Body；A concentration of 1mol/L of hydrochloric acid, ethyl orthosilicate, hydrochloric acid, water, ethanol solution volume ratio be 10:0.01:0.5:200；
2) it takes performed polymer to be diluted with n-hexane, ammonium hydroxide is added dropwise under room temperature, stirring condition, then stand 2 hours and obtain gel；
The volume ratio of a concentration of 1mol/L of ammonium hydroxide, performed polymer, n-hexane and ammonium hydroxide are 100:500:1；
3) it is stirred for crushing gel, then after the displacement of n-hexane solvent, constant pressure and dry obtains silica at 120 DEG C
Aeroge micro mist.
2, the reactive material is immobilized：Sodium chlorite and solid acid are each configured to the chlorous acid that mass fraction is 10%
Sodium solution and solid acid solution, then mixed respectively with aerosil micro mist, then through fluidized bed drying, respectively obtain solid
Carry sodium chlorite and immobilized solid acid；Wherein, the mass ratio and and solid of aerosil micro mist and sodium chlorite solution
The mass ratio of acid solution be 3:1, control flow is 0.2kg/h in fluidized bed drying process, temperature is 60 DEG C.
3, the reactive material cladding：It first prepares the ethanol solution of covering and is divided into two parts, by immobilized sodium chlorite, surely
Determine agent ultrasonic disperse and obtain the first dispersion liquid in a copy of it ethanol solution, and by immobilized solid acid and accelerating agent ultrasonic disperse
The second dispersion liquid is obtained in another ethanol solution, then divides the first dispersion liquid and the second dispersion liquid after fluidized bed drying
The first microcapsules and the second microcapsules of powdery are not obtained；Wherein, a concentration of 1g/mL of the ethanol solution of covering, fluid bed
Control flow is 0.5kg/h in drying process, temperature is 60 DEG C.
4, prepared by block：By first microcapsules are micro- and the second microcapsules and binder it is fully mixed using homogenizer
It closes, temperature control is pressed into white chunks product in a mold, wherein the temperature in control mold is 25 DEG C.
Embodiment 2
A kind of solid chlorine dioxide slow-release material, raw material include：Sodium chlorite, solid acid, carrier material, covering and
Adjuvant；The carrier material is aerosil micro mist；The adjuvant includes accelerating agent, stabilizer and binder.It is described
Accelerating agent be anhydrous ferric trichloride, potassium peroxydisulfate, sodium dichloro cyanurate, glucose, potassium permanganate, one kind in sodium chloride or
It is several.The solid acid is one kind in citric acid, sulfamic acid, tartaric acid, oxalic acid, niter cake；The covering is bright
One in glue, arabia gum powder, rosin, paraffin, polyvinylpyrrolidone, acrylic acid and methacrylic acid copolymer；Institute
It is anhydrous calcium chloride or anhydrous magnesium sulfate to state stabilizer, and the ingredient of the binder includes silica gel.The sodium chlorite, solid
Acid, carrier material, covering and adjuvant mass ratio be 10:15:15:12:50；The accelerating agent, stabilizer and binder
Mass ratio is to promote 2:7:40.
The preparation method of the solid chlorine dioxide slow-release material, step include：
1, aerosil micro mist is prepared：
1) mixed liquor for preparing ethyl orthosilicate, hydrochloric acid, water, ethanol solution, flows back 3 hours at 120 DEG C and obtains pre-polymerization
Body；A concentration of 1mol/L of hydrochloric acid, ethyl orthosilicate, hydrochloric acid, water, ethanol solution volume ratio be 10:0.1:2:400；
2) it takes performed polymer to be diluted with n-hexane, ammonium hydroxide is added dropwise under room temperature, stirring condition, then stand 2 hours and obtain gel；
The volume ratio of a concentration of 1mol/L of ammonium hydroxide, performed polymer, n-hexane and ammonium hydroxide are 100:700:3；
3) it is stirred for crushing gel, then after the displacement of n-hexane solvent, constant pressure and dry obtains silica at 120 DEG C
Aeroge micro mist.
2, the reactive material is immobilized：Sodium chlorite and solid acid are each configured to the chlorous acid that mass fraction is 30%
Sodium solution and solid acid solution, then mixed respectively with aerosil micro mist, then through fluidized bed drying, respectively obtain solid
Carry sodium chlorite and immobilized solid acid；Wherein, the mass ratio and and solid of aerosil micro mist and sodium chlorite solution
The mass ratio of acid solution be 3.5:1, control flow is 0.5kg/h in fluidized bed drying process, temperature is 70 DEG C.
3, the reactive material cladding：It first prepares the ethanol solution of covering and is divided into two parts, by immobilized sodium chlorite, surely
Determine agent ultrasonic disperse and obtain the first dispersion liquid in a copy of it ethanol solution, and by immobilized solid acid and accelerating agent ultrasonic disperse
The second dispersion liquid is obtained in another ethanol solution, then divides the first dispersion liquid and the second dispersion liquid after fluidized bed drying
The first microcapsules and the second microcapsules of powdery are not obtained；Wherein, a concentration of 3g/mL of the ethanol solution of covering, fluid bed
Control flow is 2kg/h in drying process, temperature is 70 DEG C.
4, prepared by block：By first microcapsules are micro- and the second microcapsules and binder it is fully mixed using homogenizer
It closes, temperature control is pressed into white chunks product in a mold, wherein the temperature in control mold is 50 DEG C.
Embodiment 3
A kind of solid chlorine dioxide slow-release material, raw material include：Sodium chlorite, solid acid, carrier material, covering and
Adjuvant；The carrier material is aerosil micro mist；The adjuvant includes accelerating agent, stabilizer and binder.It is described
Accelerating agent be anhydrous ferric trichloride, potassium peroxydisulfate, sodium dichloro cyanurate, glucose, potassium permanganate, one kind in sodium chloride or
It is several.The solid acid is one kind in citric acid, sulfamic acid, tartaric acid, oxalic acid, niter cake；The covering is bright
One in glue, arabia gum powder, rosin, paraffin, polyvinylpyrrolidone, acrylic acid and methacrylic acid copolymer；Institute
It is anhydrous calcium chloride or anhydrous magnesium sulfate to state stabilizer, and the ingredient of the binder includes silica gel.The sodium chlorite, solid
Acid, carrier material, covering and adjuvant mass ratio be 10:15:20:15:55；The accelerating agent, stabilizer and binder
Mass ratio is to promote 5:10:45.
The preparation method of the solid chlorine dioxide slow-release material, step include：
1, aerosil micro mist is prepared：
1) mixed liquor for preparing ethyl orthosilicate, hydrochloric acid, water, ethanol solution, flows back 4 hours at 120 DEG C and obtains pre-polymerization
Body；A concentration of 1mol/L of hydrochloric acid, ethyl orthosilicate, hydrochloric acid, water, ethanol solution volume ratio be 10:0.5:5:500；
2) it takes performed polymer to be diluted with n-hexane, ammonium hydroxide is added dropwise under room temperature, stirring condition, then stand 2 hours and obtain gel；
The volume ratio of a concentration of 1mol/L of ammonium hydroxide, performed polymer, n-hexane and ammonium hydroxide are 100:1000:5；
3) it is stirred for crushing gel, then after the displacement of n-hexane solvent, constant pressure and dry obtains silica at 150 DEG C
Aeroge micro mist.
2, the reactive material is immobilized：Sodium chlorite and solid acid are each configured to the chlorous acid that mass fraction is 50%
Sodium solution and solid acid solution, then mixed respectively with aerosil micro mist, then through fluidized bed drying, respectively obtain solid
Carry sodium chlorite and immobilized solid acid；Wherein, the mass ratio and and solid of aerosil micro mist and sodium chlorite solution
The mass ratio of acid solution be 4:1, control flow is 1kg/h in fluidized bed drying process, temperature is 90 DEG C.
3, the reactive material cladding：It first prepares the ethanol solution of covering and is divided into two parts, by immobilized sodium chlorite, surely
Determine agent ultrasonic disperse and obtain the first dispersion liquid in a copy of it ethanol solution, and by immobilized solid acid and accelerating agent ultrasonic disperse
The second dispersion liquid is obtained in another ethanol solution, then divides the first dispersion liquid and the second dispersion liquid after fluidized bed drying
The first microcapsules and the second microcapsules of powdery are not obtained；Wherein, a concentration of 5g/mL of the ethanol solution of covering, fluid bed
Control flow is 5kg/h in drying process, temperature is 90 DEG C.
4, prepared by block：By first microcapsules are micro- and the second microcapsules and binder it is fully mixed using homogenizer
It closes, temperature control is pressed into white chunks product in a mold, wherein the temperature in control mold is 70 DEG C.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details.
Claims (10)
1. a kind of solid chlorine dioxide slow-release material, which is characterized in that its raw material includes：Sodium chlorite, solid acid, carrier material
Material, covering and adjuvant；
The carrier material is aerosil micro mist；
The adjuvant includes accelerating agent, stabilizer and binder.
2. solid chlorine dioxide slow-release material as described in claim 1, which is characterized in that the accelerating agent is anhydrous tri-chlorination
One or more of iron, potassium peroxydisulfate, sodium dichloro cyanurate, glucose, potassium permanganate, sodium chloride.
3. solid chlorine dioxide slow-release material as described in claim 1, which is characterized in that the solid acid is citric acid, ammonia
One kind in base sulfonic acid, tartaric acid, oxalic acid, niter cake；The covering be gelatin, arabia gum powder, rosin, paraffin,
One in polyvinylpyrrolidone, acrylic acid and methacrylic acid copolymer；The stabilizer is anhydrous calcium chloride or anhydrous
The ingredient of magnesium sulfate, the binder includes silica gel.
4. solid chlorine dioxide slow-release material as described in claim 1, which is characterized in that the sodium chlorite, solid acid, load
The mass ratio of body material, covering and adjuvant is sodium chlorite：Solid acid：Carrier material：Covering：Adjuvant=10:15:10-
20:10-15:40-55；The mass ratio of the accelerating agent, stabilizer and binder is accelerating agent：Stabilizer：Binder=0.1-
5:5-10:30-45。
5. a kind of preparation method of solid chlorine dioxide slow-release material as described in any one of claim 1-4, feature
It is, preparation process includes that prepared by aerosil micro mist, reactive material is immobilized, reactive material coats and block system
It is standby.
6. the preparation method of solid chlorine dioxide slow-release material as claimed in claim 5, which is characterized in that the silica
The preparation process of aeroge micro mist includes：
1) mixed liquor for preparing ethyl orthosilicate, hydrochloric acid, water, ethanol solution, flows back 2-4 hours at 120 DEG C and obtains performed polymer；
2) it takes performed polymer to be diluted with n-hexane, ammonium hydroxide is added dropwise under room temperature, stirring condition, then stand to obtain gel；
3) it is stirred for crushing gel, then after the displacement of n-hexane solvent, constant pressure and dry obtains silica at 120-150 DEG C
Aeroge micro mist.
7. the preparation method of solid chlorine dioxide slow-release material as claimed in claim 6, which is characterized in that in the step 1)
A concentration of 1mol/L of hydrochloric acid, ethyl orthosilicate, hydrochloric acid, water, ethanol solution volume ratio be 10:0.01-0.5:0.5-5:
200-500；The volume ratio of a concentration of 1mol/L of ammonium hydroxide in the step 2), performed polymer, n-hexane and ammonium hydroxide are 100:500-
1000:1-5, wherein time of repose are 2 hours.
8. the preparation method of solid chlorine dioxide slow-release material as claimed in claim 7, which is characterized in that the reactive material
Immobilized step includes：By sodium chlorite and solid acid be each configured to mass fraction be 10-50% sodium chlorite solution and
Solid acid solution, then mixed respectively with aerosil micro mist, then through fluidized bed drying, respectively obtain immobilized chlorous acid
Sodium and immobilized solid acid；
Wherein, the mass ratio of aerosil micro mist and sodium chlorite solution and be to be with the mass ratio of solid acid solution
3-4:1, control flow is 0.2-1kg/h in fluidized bed drying process, temperature is 60-90 DEG C.
9. the preparation method of solid chlorine dioxide slow-release material as claimed in claim 8, which is characterized in that the reactive material
The step of cladding includes：It first prepares the ethanol solution of covering and is divided into two parts, by immobilized sodium chlorite, stabilizer ultrasonic disperse
The first dispersion liquid is obtained in a copy of it ethanol solution, and by immobilized solid acid and accelerating agent ultrasonic disperse in another ethyl alcohol
The second dispersion liquid is obtained in solution, and the first dispersion liquid and the second dispersion liquid are then respectively obtained into powdery after fluidized bed drying
First microcapsules and the second microcapsules；Wherein, a concentration of 1-5g/mL of the ethanol solution of covering, in fluidized bed drying process
Control flow is 0.5-5kg/h, temperature is 60-90 DEG C.
10. the preparation method of solid chlorine dioxide slow-release material as claimed in claim 9, which is characterized in that the block system
Standby step includes：It is first microcapsules are micro- and the second microcapsules are sufficiently mixed with binder using homogenizer,
Temperature control is pressed into white chunks product in mold, wherein the temperature in control mold is 25-70 DEG C.
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