CN108949188A - A kind of preparation method of antibacterial passivator - Google Patents
A kind of preparation method of antibacterial passivator Download PDFInfo
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- CN108949188A CN108949188A CN201810872991.0A CN201810872991A CN108949188A CN 108949188 A CN108949188 A CN 108949188A CN 201810872991 A CN201810872991 A CN 201810872991A CN 108949188 A CN108949188 A CN 108949188A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- 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
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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
- 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
- A01N65/40—Liliopsida [monocotyledons]
- A01N65/42—Aloeaceae [Aloe family] or Liliaceae [Lily family], e.g. aloe, veratrum, onion, garlic or chives
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Abstract
The present invention relates to technical field of soil remediation, and in particular to a kind of preparation method of antibacterial passivator.The present invention is by Chinese aloe leaf, garlic, silt from the bottom of lake is that reaction product is made in raw material, sulfonation solid is obtained after bamboo chip is carbonized, again by reaction product, sulfonation solid and mixed filter residue are mixed to prepare antibacterial passivator, there is carboxyl in the cellulose and other organic substances isolated in Chinese aloe leaf and garlic, hydroxyl, epoxy group and other organo-functional groups, coupling and electrostatic adsorption can be occurred to heavy metal component, make heavy metal precipitation, to play passivation, the aloe polysaccharide in aloe and aloe quinones substance can play the role of heavy metal redox simultaneously, further strengthen passivation effect, charcoal also has certain adsorption effect to heavy metal, it can also make the thermal stability of passivator, chemical corrosion resistance is improved, it has broad application prospects.
Description
Technical field
The present invention relates to technical field of soil remediation, and in particular to a kind of preparation method of antibacterial passivator.
Background technique
Soil is the important component of ecological environment system, is the material base that the mankind depend on for existence and development.With
The modernization development of China's industry and agricultural production, heavy metal pollution of soil have become main problem of environmental pollution.Soil weight
Metallic pollution has the characteristics that concealment, irreversibility and chronicity, and heavy metal element once enters soil, is difficult by soil
Microbial degradation, governance process is extremely difficult, and heavy metal can enter food chain with crop, endanger the health of people.
Heavy metal pollution simultaneously can lead to soil fertility degeneration, agricultural output reduction and crop quality decline, seriously affect environment
Quality and economic sustainable development.Therefore finding effective and reasonable method and administering has important meaning with repairing heavy metal pollution
Justice.
There are mainly two types of the approach for administering heavy metal pollution of soil: one is removing heavy metals are directly removed from soil；Second is that
Change the existing forms of heavy metal in the soil, fixes it, reduce its migration and biological effectiveness in the environment.The former
It is primarily adapted for use in the serious soil of heavy metal pollution, the latter is primarily adapted for use in light, moderate heavy metal pollution soil.For big face
The soil of product heavy metal pollution, especially mild or moderate contaminated soil, in-situ chemical, which is passivated recovery technique, has implementation simply, at
This is cheap and administers fireballing advantage, is the preferable selection for repairing large area mild or moderate heavy-metal composite pollution soil.It is former
Position passivation recovery technique Principles are to change the reason of heavy metal in the soil by the way that passivating material is added into contaminated soil
Change environment, bring it about the reaction such as absorption, precipitating, ion exchange, reduces the biological effectiveness and migration of heavy metal in the soil
Property, to achieve the purpose that restoration of soil polluted by heavy metal.
Heavy metal deactivator mainly includes physical passivation agent, chemical inactivators, biological passivator etc..Physical passivation agent utilizes
The big silicate material of adsorption capacity, such as the more rich aperture of active carbon, zeolite and specific surface area, according to the electrostatic of itself
Graviational interaction and higher ion-exchange performance adsorb fixed heavy metal, and heavy metal activity is effectively reduced.Physical absorbent
It is easier to obtain, heavy metal-passivated mechanism is relatively simple, and operability is stronger, disadvantage is that adsorbent and compost produce
Product separation is more difficult, and counterweight metal passivation effect is not still high.Chemical inactivators mainly pass through complexing, precipitating and ion exchange and make
With making Heavy Metals be down to the lower form of activity.The passivation of chemical inactivators is preferable, but chemical inactivators itself are past
It is polluted toward existing to environment, therefore, there are secondary pollution risks for chemical inactivators.The passivation of biological passivator on the one hand can
Can improve microorganism to the richness of heavy metal ion since the part microbial bacterial agent of addition influences microbial activity in material
Collection, on the other hand then may be the enhancing due to microbial activity, and stronger microbial metabolism generates a large amount of humic acids and divides greatly
Sub- substance converts heavy metal ion to the form for being not easy to be absorbed by plants or is accumulated in microbial body, reduces its mobility.
In recent years some are studies have shown that soil can be improved to heavy metal as organic fertilizer in application feces of livestock and poultry, agricultural crop straw
Absorption, reduces the content of soil available heavy metal, but since organic matter is unstable, is easy to be degraded by microorganisms, and adsorbs
Heavy metal afterwards be easy to be re-released into gone in environment it is therefore unsatisfactory to the passivation effect of heavy metal.
Currently having a large amount of passivator may be implemented fixing-stable reparation to heavy metal cadmium contaminated soil, but be passivated
The long-term effectiveness of agent is difficult to ensure.Furthermore occupy very big ratio in the acid farmland of China's heavy metal pollution, but
Never the passivation to heavy metal may be implemented in a kind of permanently effective passivator.
Therefore, there is an urgent need to develop, passivation ability is strong, relative inexpensiveness, multi-functional passivation easy to use
Agent, accelerates its large scale application, provides effective guarantee for agricultural product security.
Summary of the invention
The technical problems to be solved by the invention: for current passivator counterweight metal passivation effect it is poor, be easy by virus,
The defect of the infection such as bacterium corrosion, provides a kind of preparation method of antibacterial passivator.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of preparation method of antibacterial passivator, it is characterised in that specific preparation step are as follows:
(1) by etc. quality Chinese aloe leaf and garlic chopping be put into steam blasting tank, steam, steam are conveyed into steam blasting tank
Cavity charge containers are sealed after having conveyed, constant temperature and pressure is stood, and after standing, opens steam blasting tank cover, cooled to room temperature
Up to gas explosion product；
(2) above-mentioned gas explosion product is mixed with Taihu Lake silt from the bottom of lake 1:3 in mass ratio and is put into glass dish, it will be in glass dish greenhouse
It stands, mix products is made, mix products remove mud wash with distilled water, obtain reaction product, spare；
(3) bamboo chip is mixed with sodium hydroxide solution 1:5 in mass ratio in investment beaker, by heated at constant temperature in beaker water-bath,
It is added dropwise hydrochloric acid after heating, adjusts pH value to 3~5, impregnate 5~7h under room temperature, filter residue is obtained by filtration after immersion, uses distilled water
Cleaning filter residue 3~5 times, is placed in oven and dried；
(4) above-mentioned filter residue is put into retort, under argon atmosphere, increases thermostatic in retort and stand to obtain charing production
Carbonizing production is mixed in investment conical flask with sulfuric acid solution 1:5 in mass ratio, seals conical flask bottleneck, soak at normal temperature by object
Bubble 3~5 days, is obtained by filtration filter cake after immersion, be placed in oven and dried after filter cake 3~5 times wash with distilled water, is put into after dry
It is ground in grinder, crosses 50 meshes and obtain sulfonation solid, it is spare；
(5) it will be mixed in concave convex rod powder and sulfuric acid solution 1:5 in mass ratio investment beaker, be mixed, stirred with blender
After place the beaker sonic oscillation in sonic oscillation instrument, mixed filter residue is obtained by filtration after oscillation；
(6) according to parts by weight, 3~5 parts of spare reaction products, 2~4 parts of spare sulfonation solids and 7~9 parts are above-mentioned mixed
Conjunction filter residue, which is put into three-dimensional blender, to be uniformly mixed, and is placed in oven and dried after mixing, is put into grinder and grinds after dry
Mill crosses 50 meshes up to antibacterial passivator after grinding.
The temperature that steam is conveyed in steam blasting tank as described in step (1) is 230~250 DEG C, air pressure rises to 2~
3MPa, constant temperature and pressure time of repose are 20~30min.
The temperature in greenhouse described in step (2) is 38~45 DEG C, and relative air humidity is 70~90%, time of repose 3
~5 days.
The mass fraction of sodium hydroxide solution described in step (3) is 15~20%, the bath temperature of water-bath is 80~
90 DEG C, the heated at constant temperature time is 2~3h, and after heating, the mass fraction of hydrochloric acid is 10~15%, and the temperature in baking oven is 80
~85 DEG C, drying time is 13~15h.
Temperature is increased in retort described in step (4) to 680~710 DEG C, constant temperature time of repose is 50~70min,
The mass fraction of sulfuric acid solution is 80~90%, and the temperature in baking oven is 60~65 DEG C, and drying time is 5~6h.
The mass fraction of sulfuric acid solution described in step (5) is 75~85%, and the revolving speed of blender is 300~330r/
Min, mixing time are 15~20min, and the frequency in sonic oscillation instrument is 40~45kHz, and the sonic oscillation time is 2~3
It.
Temperature in baking oven described in step (6) is 70~75 DEG C, and drying time is 5~6h.
The method have the benefit that:
(1) Chinese aloe leaf and garlic are carried out steam blasting first by the present invention, are mixed after explosion with Taihu Lake silt from the bottom of lake and are put into greenhouse
In reaction product is made, then bamboo chip is successively put into lye, is impregnated in acid solution, filtered, dry after immersion and be put into retort
Charing, is put into sulfuric acid after charing and impregnates, and is filtered, washed, dries after immersion, grinding and obtain sulfonation solid, then by concave convex rod
It is mixed with sulfuric acid and mixed filter residue is made, be finally uniformly mixed reaction product, sulfonation solid with mixed filter residue, drying and grinding
Antibacterial passivator is made afterwards, Chinese aloe leaf and garlic are carried out steam explosion processing by the present invention, keep each tissue in Chinese aloe leaf and garlic fine
Dimension, cellulose are separated with other organic substances, are mixed to be put into greenhouse with mud after steam explosion and are carried out microculture, Chinese aloe leaf and
There is carboxyl, hydroxyl, epoxy group and other organo-functional groups in the cellulose and other organic substances isolated in garlic,
Coupling and electrostatic adsorption can be occurred to heavy metal component, make heavy metal precipitation, to play passivation, simultaneously
Aloe polysaccharide and aloe quinones substance in aloe can play the role of heavy metal redox, separate heavy metal component
Out in soil, passivation effect is further strengthened, while the allicin that steam explosion is isolated in garlic can play antibacterial action, prevent
The destruction of bacterium, germ to passivator；
(2) bamboo chip is successively impregnated the bamboo fibre isolated in bamboo chip by the present invention in lye, acid solution, is then put into bamboo fibre
It is carbonized in retort, places into sulfuric acid and impregnate after charing, so that carbon fiber surface layer is introduced sulfonic acid group, sulfonic acid group can be with coupling
Heavy metal ion is closed, makes heavy metal adsorption on carbon fibre, and charcoal also has certain adsorption effect to heavy metal,
The thermal stability of passivator, chemical corrosion resistance can also be made to be improved, passivator slant acidity obtained by the present invention is unfavorable for
The growth of bacterium, virus, therefore it is effectively prevent the growth of bacterium, virus, good fungistatic effect is played, there is wide application
Prospect.
Specific embodiment
By etc. quality Chinese aloe leaf and garlic chopping be put into steam blasting tank, into steam blasting tank, delivery temperature is
230~250 DEG C of steam after steam has conveyed, seals cavity charge containers, constant temperature until air pressure rises to 2~3MPa in steam blasting tank
Constant pressure stands 20~30min, after standing, opens steam blasting tank cover, cooled to room temperature is up to gas explosion product；It will
Above-mentioned gas explosion product is mixed with Taihu Lake silt from the bottom of lake 1:3 in mass ratio and is put into glass dish, by glass dish be put into temperature be 38~
45 DEG C, to stand 3~5 days in 70~90% greenhouse mix products are made, mixing produces wash with distilled water in relative air humidity
Object removes mud, obtains reaction product, spare；By bamboo chip and mass fraction be 15~20% sodium hydroxide solution in mass ratio
In 1:5 mixing investment beaker, place the beaker in the water-bath that bath temperature is 80~90 DEG C, 2~3h of heated at constant temperature, heating knot
The hydrochloric acid that mass fraction is 10~15% is added dropwise in Shu Hou, adjusts pH value to 3~5,5~7h is impregnated under room temperature, is filtered after immersion
To filter residue, filter residue 3~5 times, are put into baking oven wash with distilled water, dry 13~15h under conditions of temperature is 80~85 DEG C；
Above-mentioned filter residue is put into retort, under argon atmosphere, increases in retort temperature to 680~710 DEG C, constant temperature stands 50~
Carbonizing production is obtained after 70min, and carbonizing production is mixed into throwing with the sulfuric acid solution 1:5 in mass ratio that mass fraction is 80~90%
Enter in conical flask, seal conical flask bottleneck, impregnates 3~5 days at normal temperature, filter cake is obtained by filtration after immersion, wash with distilled water
It is put into baking oven after filter cake 3~5 times, dry 5~6h, is put into grinder after dry and grinds under conditions of temperature is 60~65 DEG C
Mill crosses 50 meshes and obtains sulfonation solid, spare；The sulfuric acid solution that concave convex rod powder and mass fraction are 75~85% is pressed into quality
Than being mixed in 1:5 investment beaker, 15~20min is mixed with the revolving speed of 300~330r/min with blender, will be burnt after stirring
Cup is placed in sonic oscillation instrument, sonic oscillation 2~3 days under conditions of frequency is 40~45kHz, is obtained by filtration after oscillation
Mixed filter residue；According to parts by weight, 3~5 parts of spare reaction products, 2~4 parts of spare sulfonation solids and 7~9 parts are above-mentioned
Mixed filter residue is put into three-dimensional blender and is uniformly mixed, be put into after mixing temperature be dry 5 in 70~75 DEG C of baking oven~
6h is put into grinder after dry and grinds, and 50 meshes are crossed after grinding up to antibacterial passivator.
By etc. quality Chinese aloe leaf and garlic chopping be put into steam blasting tank, into steam blasting tank, delivery temperature is
230 DEG C of steam after steam has conveyed, seals cavity charge containers, constant temperature and pressure is stood until air pressure rises to 2MPa in steam blasting tank
20min after standing, opens steam blasting tank cover, cooled to room temperature is up to gas explosion product；By above-mentioned gas explosion product
It mixes and is put into glass dish with Taihu Lake silt from the bottom of lake 1:3 in mass ratio, it is 38 DEG C that glass dish, which is put into temperature, relative air humidity
To stand 3 days in 70% greenhouse, obtained mix products, mix products remove mud wash with distilled water, obtain reaction product,
It is spare；Bamboo chip is mixed in investment beaker with the sodium hydroxide solution 1:5 in mass ratio that mass fraction is 15%, is placed the beaker
In the water-bath that bath temperature is 80 DEG C, heated at constant temperature 2h after heating, is added dropwise the hydrochloric acid that mass fraction is 10%, adjusts pH
Value impregnates 5h under room temperature, filter residue is obtained by filtration after immersion, filter residue 3 times, are put into baking oven wash with distilled water, are in temperature to 3
Dry 13h under conditions of 80 DEG C；Above-mentioned filter residue is put into retort, under argon atmosphere, increases in retort temperature to 680
DEG C, constant temperature obtains carbonizing production after standing 50min, the sulfuric acid solution 1:5 in mass ratio for being 80% by carbonizing production and mass fraction
In mixing investment conical flask, conical flask bottleneck is sealed, impregnates 3 days at normal temperature, filter cake is obtained by filtration after immersion, it is clear with distilled water
It is put into baking oven after filter wash cake 3 times, dry 5h, is put into grinder after dry and grinds under conditions of temperature is 60 DEG C, crosses 50
Mesh obtains sulfonation solid, spare；The sulfuric acid solution 1:5 in mass ratio that concave convex rod powder and mass fraction are 75% is put into and is burnt
It is mixed in cup, 15min is mixed with the revolving speed of 300r/min with blender, is placed the beaker after stirring in sonic oscillation instrument,
Sonic oscillation 2 days under conditions of frequency is 40kHz, mixed filter residue is obtained by filtration after oscillation；According to parts by weight, by 3
Part spare reaction product, 2 parts of spare sulfonation solids and 7 parts of above-mentioned mixed filter residues, which are put into three-dimensional blender, to be stirred
It is even, it is put into dry 5h in the baking oven that temperature is 70 DEG C after mixing, is put into grinder and grinds after dry, 50 meshes are crossed after grinding is
Obtain antibacterial passivator.
By etc. quality Chinese aloe leaf and garlic chopping be put into steam blasting tank, into steam blasting tank, delivery temperature is
240 DEG C of steam after steam has conveyed, seals cavity charge containers, constant temperature and pressure is stood until air pressure rises to 2MPa in steam blasting tank
25min after standing, opens steam blasting tank cover, cooled to room temperature is up to gas explosion product；By above-mentioned gas explosion product
It mixes and is put into glass dish with Taihu Lake silt from the bottom of lake 1:3 in mass ratio, it is 41 DEG C that glass dish, which is put into temperature, relative air humidity
To stand 4 days in 80% greenhouse, obtained mix products, mix products remove mud wash with distilled water, obtain reaction product,
It is spare；Bamboo chip is mixed in investment beaker with the sodium hydroxide solution 1:5 in mass ratio that mass fraction is 17%, is placed the beaker
In the water-bath that bath temperature is 85 DEG C, heated at constant temperature 2h after heating, is added dropwise the hydrochloric acid that mass fraction is 13%, adjusts pH
Value impregnates 6h under room temperature, filter residue is obtained by filtration after immersion, filter residue 4 times, are put into baking oven wash with distilled water, are in temperature to 4
Dry 14h under conditions of 83 DEG C；Above-mentioned filter residue is put into retort, under argon atmosphere, increases in retort temperature to 700
DEG C, constant temperature obtains carbonizing production after standing 60min, the sulfuric acid solution 1:5 in mass ratio for being 85% by carbonizing production and mass fraction
In mixing investment conical flask, conical flask bottleneck is sealed, impregnates 4 days at normal temperature, filter cake is obtained by filtration after immersion, it is clear with distilled water
It is put into baking oven after filter wash cake 4 times, dry 5h, is put into grinder after dry and grinds under conditions of temperature is 63 DEG C, crosses 50
Mesh obtains sulfonation solid, spare；The sulfuric acid solution 1:5 in mass ratio that concave convex rod powder and mass fraction are 80% is put into and is burnt
It is mixed in cup, 17min is mixed with the revolving speed of 315r/min with blender, is placed the beaker after stirring in sonic oscillation instrument,
Sonic oscillation 2 days under conditions of frequency is 43kHz, mixed filter residue is obtained by filtration after oscillation；According to parts by weight, by 4
Part spare reaction product, 3 parts of spare sulfonation solids and 8 parts of above-mentioned mixed filter residues, which are put into three-dimensional blender, to be stirred
It is even, it is put into dry 5h in the baking oven that temperature is 73 DEG C after mixing, is put into grinder and grinds after dry, 50 meshes are crossed after grinding is
Obtain antibacterial passivator.
By etc. quality Chinese aloe leaf and garlic chopping be put into steam blasting tank, into steam blasting tank, delivery temperature is
250 DEG C of steam after steam has conveyed, seals cavity charge containers, constant temperature and pressure is stood until air pressure rises to 3MPa in steam blasting tank
30min after standing, opens steam blasting tank cover, cooled to room temperature is up to gas explosion product；By above-mentioned gas explosion product
It mixes and is put into glass dish with Taihu Lake silt from the bottom of lake 1:3 in mass ratio, it is 45 DEG C that glass dish, which is put into temperature, relative air humidity
To stand 5 days in 90% greenhouse, obtained mix products, mix products remove mud wash with distilled water, obtain reaction product,
It is spare；Bamboo chip is mixed in investment beaker with the sodium hydroxide solution 1:5 in mass ratio that mass fraction is 20%, is placed the beaker
In the water-bath that bath temperature is 90 DEG C, heated at constant temperature 3h after heating, is added dropwise the hydrochloric acid that mass fraction is 15%, adjusts pH
Value impregnates 7h under room temperature, filter residue is obtained by filtration after immersion, filter residue 5 times, are put into baking oven wash with distilled water, are in temperature to 5
Dry 15h under conditions of 85 DEG C；Above-mentioned filter residue is put into retort, under argon atmosphere, increases in retort temperature to 710
DEG C, constant temperature obtains carbonizing production after standing 70min, the sulfuric acid solution 1:5 in mass ratio for being 90% by carbonizing production and mass fraction
In mixing investment conical flask, conical flask bottleneck is sealed, impregnates 5 days at normal temperature, filter cake is obtained by filtration after immersion, it is clear with distilled water
It is put into baking oven after filter wash cake 5 times, dry 6h, is put into grinder after dry and grinds under conditions of temperature is 65 DEG C, crosses 50
Mesh obtains sulfonation solid, spare；The sulfuric acid solution 1:5 in mass ratio that concave convex rod powder and mass fraction are 85% is put into and is burnt
It is mixed in cup, 20min is mixed with the revolving speed of 330r/min with blender, is placed the beaker after stirring in sonic oscillation instrument,
Sonic oscillation 3 days under conditions of frequency is 45kHz, mixed filter residue is obtained by filtration after oscillation；According to parts by weight, by 5
Part spare reaction product, 4 parts of spare sulfonation solids and 9 parts of above-mentioned mixed filter residues, which are put into three-dimensional blender, to be stirred
It is even, it is put into dry 6h in the baking oven that temperature is 75 DEG C after mixing, is put into grinder and grinds after dry, 50 meshes are crossed after grinding is
Obtain antibacterial passivator.
The passivator that comparative example is produced with Datong company is as a comparison case to antibacterial passivator produced by the present invention
It is detected with the passivator in comparative example, testing result is as shown in table 1:
Test method
Each 100g of Cd, Pb, Cu contaminated soil is weighed, is separately added into blunt in 3g antibacterial passivator produced by the present invention and comparative example
Agent stirs evenly, and adds the mixture 30%(weight ratio) tap water, 5min is sufficiently stirred, be uniformly mixed, stand 3
It, it is spare.Natural air drying soil after 3 days is crushed sampling, respectively according to " leaching toxicity from solid waste method sulfonitric method "
(environmental protection professional standard HJ/T299-2007) and " measurement of soil pH " (agricultural industry criteria NY/T1377-2007) measurement
Toxicity of lixivium and soil pH value.
1 performance measurement result of table
According to data in table 1 it is found that antibacterial passivator produced by the present invention, significantly reduces lead in soil, cadmium bio-available Zn concentration,
And biocidal property is strong, without secondary pollution, simple process, and it is cheap, it can also make the weight entered in the plant cultivated in the soil
Tenor is significantly reduced, and has wide prospect of the application.
Claims (7)
1. a kind of preparation method of antibacterial passivator, it is characterised in that specific preparation step are as follows:
(1) by etc. quality Chinese aloe leaf and garlic chopping be put into steam blasting tank, steam, steam are conveyed into steam blasting tank
Cavity charge containers are sealed after having conveyed, constant temperature and pressure is stood, and after standing, opens steam blasting tank cover, cooled to room temperature
Up to gas explosion product；
(2) above-mentioned gas explosion product is mixed with Taihu Lake silt from the bottom of lake 1:3 in mass ratio and is put into glass dish, it will be in glass dish greenhouse
It stands, mix products is made, mix products remove mud wash with distilled water, obtain reaction product, spare；
(3) bamboo chip is mixed with sodium hydroxide solution 1:5 in mass ratio in investment beaker, by heated at constant temperature in beaker water-bath,
It is added dropwise hydrochloric acid after heating, adjusts pH value to 3~5, impregnate 5~7h under room temperature, filter residue is obtained by filtration after immersion, uses distilled water
Cleaning filter residue 3~5 times, is placed in oven and dried；
(4) above-mentioned filter residue is put into retort, under argon atmosphere, increases thermostatic in retort and stand to obtain charing production
Carbonizing production is mixed in investment conical flask with sulfuric acid solution 1:5 in mass ratio, seals conical flask bottleneck, soak at normal temperature by object
Bubble 3~5 days, is obtained by filtration filter cake after immersion, be placed in oven and dried after filter cake 3~5 times wash with distilled water, is put into after dry
It is ground in grinder, crosses 50 meshes and obtain sulfonation solid, it is spare；
(5) it will be mixed in concave convex rod powder and sulfuric acid solution 1:5 in mass ratio investment beaker, be mixed, stirred with blender
After place the beaker sonic oscillation in sonic oscillation instrument, mixed filter residue is obtained by filtration after oscillation；
(6) according to parts by weight, 3~5 parts of spare reaction products, 2~4 parts of spare sulfonation solids and 7~9 parts are above-mentioned mixed
Conjunction filter residue, which is put into three-dimensional blender, to be uniformly mixed, and is placed in oven and dried after mixing, is put into grinder and grinds after dry
Mill crosses 50 meshes up to antibacterial passivator after grinding.
2. a kind of preparation method of antibacterial passivator according to claim 1, it is characterised in that: as described in step (1)
The temperature that steam is conveyed in steam blasting tank is 230~250 DEG C, and air pressure rises to 2~3MPa, constant temperature and pressure time of repose is 20~
30min。
3. a kind of preparation method of antibacterial passivator according to claim 1, it is characterised in that: described in step (2)
The temperature in greenhouse is 38~45 DEG C, and relative air humidity is 70~90%, and time of repose is 3~5 days.
4. a kind of preparation method of antibacterial passivator according to claim 1, it is characterised in that: described in step (3)
The mass fraction of sodium hydroxide solution is 15~20%, and the bath temperature of water-bath is 80~90 DEG C, the heated at constant temperature time is 2~
3h, after heating, the mass fraction of hydrochloric acid is 10~15%, and the temperature in baking oven is 80~85 DEG C, drying time is 13~
15h。
5. a kind of preparation method of antibacterial passivator according to claim 1, it is characterised in that: described in step (4)
Temperature being increased in retort to 680~710 DEG C, constant temperature time of repose is 50~70min, the mass fraction of sulfuric acid solution is 80~
90%, the temperature in baking oven is 60~65 DEG C, and drying time is 5~6h.
6. a kind of preparation method of antibacterial passivator according to claim 1, it is characterised in that: described in step (5)
The mass fraction of sulfuric acid solution is 75~85%, and the revolving speed of blender is 300~330r/min, mixing time is 15~
20min, the frequency in sonic oscillation instrument are 40~45kHz, and the sonic oscillation time is 2~3 days.
7. a kind of preparation method of antibacterial passivator according to claim 1, it is characterised in that: described in step (6)
Temperature in baking oven is 70~75 DEG C, and drying time is 5~6h.
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Application publication date: 20181207 |