CN106398908B - A method of adduct sodium sulphate-hydrogen peroxide-sodium chloride is prepared using solid waste saltcake - Google Patents

A method of adduct sodium sulphate-hydrogen peroxide-sodium chloride is prepared using solid waste saltcake Download PDF

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CN106398908B
CN106398908B CN201610755880.2A CN201610755880A CN106398908B CN 106398908 B CN106398908 B CN 106398908B CN 201610755880 A CN201610755880 A CN 201610755880A CN 106398908 B CN106398908 B CN 106398908B
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hydrogen peroxide
sodium chloride
saltcake
sodium
adduct
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CN106398908A (en
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崔耀星
徐俊辉
陈留平
冷翠婷
苏志俊
韩俊甜
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China Salt Jintan Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395Bleaching agents
    • C11D3/3951Bleaching agents combined with specific additives
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39Organic or inorganic per-compounds
    • C11D3/3902Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905Bleach activators or bleach catalysts
    • C11D3/3932Inorganic compounds or complexes
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/48Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention belongs to inorganic salts preparation technical field, in particular to a kind of method that adduct sodium sulphate-hydrogen peroxide-sodium chloride is prepared using solid waste saltcake.Specific method is first to mix saltcake, hydrogen peroxide and sodium chloride, be stirred to react 30~60min under room temperature, and decompression filters after reaction, is separated by solid-liquid separation;Solid phase after separation is dried to 60~90min at 80~120 DEG C again, obtains adduct sodium sulphate-hydrogen peroxide-sodium chloride product.

Description

It is a kind of that adduct sodium sulphate-hydrogen peroxide-sodium chloride is prepared using solid waste saltcake Method
Technical field
The invention belongs to inorganic salts preparation technical fields, in particular to a kind of to prepare sodium sulphate-peroxide using solid waste saltcake Change hydrogen-sodium chloride adduct method.
Background technique
Adduct sodium sulphate-hydrogen peroxide-sodium chloride is a kind of neutral, oxygen-containing washing assisant of nontoxic solid and one The novel oxygenation agent of kind, disinfectant, bleaching assistant.Molecular formula is 4Na2SO4-2H2O2The mass fraction of-NaCl, hydrogen peroxide is Greater than 9.2%, active o content 4.6%.Due to 4Na2SO4-2H2O2- NaCl is dissolved in the hydrogen peroxide generated after water and occurs to divide Solution, the elemental oxygen of releasing has bleaching, sterilization, decontamination and disinfection, so the property with hydrogen peroxide;It is dissolved in simultaneously PH value after water in aqueous solution is 6~8, close to neutrality, frequently as detergent bleach auxiliary agent.
There are mainly two types of for the production technology of traditional adduct sodium sulphate-hydrogen peroxide-sodium chloride: one is wet types Sodium sulphate, sodium chloride, stabilizer are dissolved in hydrogen peroxide by preparation method, are controlled crystallization temperature appropriate, are dried after separation to Product.Another is dry type preparation method, sodium sulphate, sodium chloride is stirred kneading using mixer or kneader, simultaneously Mixture is sprayed with hydrogen peroxide, product is made.
Although adduct sodium sulphate-hydrogen peroxide-sodium chloride possesses plurality of advantages, when it is used as bleaching agent bleaching, deposit The phenomenon that decomposition rate is too fast, decomposition, needs additionally to add synergist or stabilizer slows down its decomposition rate;Simultaneously should Product grains are tiny, and in production, drying, storage and transportational process, crystal grain can be acted on due to crystal, are bonded to each other, out The phenomenon that existing product agglomeration.
Saltcake, Na2SO4•10H2O content >=85%, monoclinic system is usually in pelletized form, blocky, soluble easily in water, there is moisture absorption Property.The chlor-alkali plant etc. that chemical fibre factory or embrane method remove nitre at present has a common difficulty, and the by-product saltcake exactly produced does not have There is market, remaining beneficial ingredient is all abandoned as waste, becomes new solid waste, in a large amount of saltcake accumulations and transportational process very The problems such as be easy to causeing soil and underground water pollution.The saltcake of especially certain by-products contains the Hubeiwans such as cellulose, therefore Saltcake solid waste bring environmental pollution how is reduced, turns waste into wealth, increases operation rate, make the product of higher value, at For people's concern.
Summary of the invention
Technical problem to be solved by the present invention lies in: there are particle size distributions for adduct sodium sulphate-hydrogen peroxide-sodium chloride Difference, easily agglomeration the disadvantages of, while when being used as bleaching assistant bleaching, the phenomenon that there are decomposition rates is too fast, decomposition, need volume Outer addition synergist or stabilizer slow down its decomposition rate, cause the increase of cost.
The present invention uses the solid waste saltcake doped with impurity to replace raw material of traditional sodium sulphate as reaction, two-step method preparation Adduct sodium sulphate-hydrogen peroxide-sodium chloride, when being used as bleaching assistant with the adduct product that the raw material is prepared, bleaching is steady Qualitative decomposition that is higher, effectively inhibiting adduct product, improves bleaching utilization rate;The Granularity Distribution is equal simultaneously Even, autonomous resistive connection block effect is good, while the problems such as solve current saltcake solid waste environmental pollution is serious, resource utilization is low, very The good cost for reducing raw material in traditional preparation method.
In order to achieve the above object, the present invention adopts the following technical scheme:
(1) sodium sulphate, hydrogen peroxide, 1.2~2.5:2.1 of sodium chloride three's molar ratio~3.5:0.8~1.6 are pressed, by awns Nitre, hydrogen peroxide and sodium chloride mix, and are stirred to react 30~60min under the conditions of room temperature (25 DEG C), and decompression filters after reaction, It is separated by solid-liquid separation,
Wherein, the hybrid manipulation of saltcake, hydrogen peroxide and sodium chloride is that saltcake and sodium chloride are added to aquae hydrogenii dioxidi In solution,
Wherein, saltcake ingredient is calculated according to weight percent, needs to control are as follows: cellulose sulfonate 2%~5%, crystallite Cellulose 2%~3%, trithiocarbonic acid sodium 1%~2%, sodium bisulfate 0.5%~1%, sulphur 0.5%~1%, zinc sulfate 1%~2%, surplus Na2SO4•10H2O,
In the presence of cellulose sulfonate, microcrystalline cellulose, zinc sulfate are with above-mentioned content, sodium sulphate-can be utmostly improved Hydrogen peroxide-sodium chloride adduct mobility, enhances its anti-caking performance, main reason is that cellulose sulfonate contains ester Base, which has hydrophobicity, while the polysaccharide polymer structure of cellulose sulfonate and microcrystalline cellulose can be adsorbed in adduction Object surface forms hydrophobic layer, hinders exchanging for adduct and moisture in air, can effectively prevent adduct agglomeration;Except this with Outside, the synergistic effect between each ingredient and adduct, the decomposition for effectively inhibiting adduct too fast slow down it to being bleached The radical response of object improves its effective, lasting utilization rate,
If trithiocarbonic acid sodium content is higher than 2%, hydrate is generated because it is highly soluble in water, will affect sodium sulphate- Hydrogen peroxide-sodium chloride adduct anti-caking performance, while sodium bisulfate has hygroscopicity, content must also be controlled 1% Within,
Wherein, the Solute mass fraction of aqueous hydrogen peroxide solution is 30%, purity >=99.7% of NaCl in sodium chloride;
(2) solid phase after step (1) separation is dried at 80~120 DEG C 60~90min, obtains sodium sulphate-peroxidating Hydrogen-sodium chloride adduct product.
The present invention also provides a kind of answering for adduct sodium sulphate-hydrogen peroxide-sodium chloride that above-mentioned preparation method obtains With that is, using adduct sodium sulphate-hydrogen peroxide-sodium chloride as bleaching agent.
The present invention has following advantages and effect compared with prior art:
(1) present invention provides a kind of solid waste saltcake and is used as adduct sodium sulphate-hydrogen peroxide-sodium chloride raw materials for production, system At finished product as bleaching assistant when resolution ratio < 85%, effective rate of utilization is high, stability is preferable, the pure cotton fabric after bleaching Brightness gain >=50%, while 35 ° of static angle < in resistive connection test, product mobility is preferable, and autonomous anti-caking performance is excellent It is different.
(2) saltcake is replaced traditional anhydrous sodium sulfate to be applied to prepare product by the present invention, and saltcake is useless for common industrial Gurry is turned waste into wealth in this way, realizes recycling for mirabilite resource.
(3) present invention makes full use of the particularity of raw material feature and process, significantly reduces production cost, is suitble to It is used in heavy industrialization.
Specific embodiment
Embodiment 1
(1) hydrogenperoxide steam generator that 200L mass fraction is 30% is first added in a kettle, is sequentially added under stirring (each ingredient of saltcake calculates 420kg saltcake according to weight percent are as follows: cellulose sulfonate 4%, microcrystalline cellulose 2%, three are thio Sodium carbonate 1%, sodium bisulfate 0.5%, sulphur 0.8%, zinc sulfate 1.5%, surplus Na2SO4•10H2O), 46kg sodium chloride, It is stirred to react 60min under the conditions of room temperature (25 DEG C), decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 100 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Embodiment 2
(1) hydrogenperoxide steam generator that 250L mass fraction is 30% is first added in a kettle, is sequentially added under stirring (each ingredient of saltcake calculates 450kg saltcake according to weight percent are as follows: cellulose sulfonate 5%, microcrystalline cellulose 2%, three is thio Sodium carbonate 1.2%, sodium bisulfate 0.6%, sulphur 1%, zinc sulfate 1.2%, surplus Na2SO4•10H2O), 52kg sodium chloride, It is stirred to react 50min under the conditions of room temperature (25 DEG C), decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 80min at 90 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Embodiment 3
(1) hydrogenperoxide steam generator that 220L mass fraction is 30% is first added in a kettle, is sequentially added under stirring 430kg saltcake (each ingredient of saltcake is calculated according to weight percent are as follows: cellulose sulfonate 2.5%, microcrystalline cellulose 2.5%, and three Sodium thiocarbonate 1%, sodium bisulfate 1%, sulphur 0.7%, zinc sulfate 1.8%, surplus Na2SO4•10H2O), 50kg chlorination Sodium is stirred to react 60min under the conditions of room temperature (25 DEG C), and decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 120 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Embodiment 4
(1) hydrogenperoxide steam generator that 300L mass fraction is 30% is first added in a kettle, is sequentially added under stirring (each ingredient of saltcake calculates 630kg saltcake according to weight percent are as follows: cellulose sulfonate 3%, microcrystalline cellulose 2.6%, trithio For sodium carbonate 1.1%, sodium bisulfate 0.5%, sulphur 0.5%, zinc sulfate 2%, surplus Na2SO4•10H2O), 86kg chlorination Sodium is stirred to react 60min under the conditions of room temperature (25 DEG C), and decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 120 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Embodiment 5
(1) hydrogenperoxide steam generator that 280L mass fraction is 30% is first added in a kettle, is sequentially added under stirring (each ingredient of saltcake calculates 588kg saltcake according to weight percent are as follows: cellulose sulfonate 4%, microcrystalline cellulose 2%, three is thio Sodium carbonate 1.5%, sodium bisulfate 0.7%, sulphur 0.6%, zinc sulfate 1.5%, surplus Na2SO4•10H2O), 80kg chlorination Sodium is stirred to react 60min under the conditions of room temperature (25 DEG C), and decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 80 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Embodiment 6
(1) hydrogenperoxide steam generator that 280L mass fraction is 30% is first added in a kettle, is sequentially added under stirring 588kg saltcake (each ingredient of saltcake is calculated according to weight percent are as follows: cellulose sulfonate 3.5%, microcrystalline cellulose 2.3%, and three Sodium thiocarbonate 1.5%, sodium bisulfate 0.5%, sulphur 1%, zinc sulfate 1.6%, surplus Na2SO4•10H2O), 80kg chlorination Sodium is stirred to react 60min under the conditions of room temperature (25 DEG C), and decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 100 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Embodiment 7
(1) hydrogenperoxide steam generator that 200L mass fraction is 30% is first added in a kettle, is sequentially added under stirring (each ingredient of saltcake calculates 420kg saltcake according to weight percent are as follows: cellulose sulfonate 4%, microcrystalline cellulose 3%, three is thio Sodium carbonate 1.2%, sodium bisulfate 0.9%, sulphur 0.6%, zinc sulfate 1.5%, surplus Na2SO4•10H2O), 46kg chlorination Sodium is stirred to react 60min under the conditions of room temperature (25 DEG C), and decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 120 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Embodiment 8
(1) hydrogenperoxide steam generator that 250L mass fraction is 30% is first added in a kettle, is sequentially added under stirring (each ingredient of saltcake calculates 450kg saltcake according to weight percent are as follows: cellulose sulfonate 4.5%, microcrystalline cellulose 2%, trithio For sodium carbonate 1%, sodium bisulfate 0.8%, sulphur 0.7%, zinc sulfate 1.1%, surplus Na2SO4•10H2O), 52kg chlorination Sodium is stirred to react 50min under the conditions of room temperature (25 DEG C), and decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 100 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Comparative example 1
Compared to embodiment 4, saltcake is replaced to prepare conjugate using several pure raw material:
(1) hydrogenperoxide steam generator that 300L mass fraction is 30% is first added in a kettle, is sequentially added under stirring The Na of 568.9kg2SO4•10H2O, 18.9kg cellulose sulfonate, 16.3kg microcrystalline cellulose, 12.6kg zinc sulfate, 86kg chlorine Change sodium, be stirred to react 60min under the conditions of room temperature (25 DEG C), decompression filters after reaction, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 120 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Comparative example 2
Compared to embodiment 4, saltcake is replaced to prepare conjugate using several pure raw material:
(1) hydrogenperoxide steam generator that 300L mass fraction is 30% is first added in a kettle, is sequentially added under stirring The Na of 568.9kg2SO4•10H2O, 18.9kg cellulose sulfonate, 16.3kg microcrystalline cellulose, 86kg sodium chloride, room temperature (25 DEG C) under the conditions of be stirred to react 60min, after reaction decompression filter, be separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 120 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
Comparative example 3
Compared to embodiment 4, using pure Na2SO4•10H2O replaces saltcake to prepare conjugate:
(1) hydrogenperoxide steam generator that 300L mass fraction is 30% is first added in a kettle, is sequentially added under stirring The Na of 568.9kg2SO4•10H2O and 86kg sodium chloride is stirred to react 60min under the conditions of room temperature (25 DEG C), depressurizes after reaction It filters, is separated by solid-liquid separation;
(2) solid phase after step (1) separation is dried into 60min at 120 DEG C, obtains sodium sulphate-hydrogen peroxide-sodium chloride Adduct product.
The bleachability of the various embodiments described above, comparative example products obtained therefrom is tested: it is freshly prepared to accurately weigh 10.000g Adduct sodium sulphate-hydrogen peroxide-sodium chloride sample be placed in 250mL beaker, add 100ml water dissolve, heating water bath to 90 ℃;Learn from else's experience and move back pure cotton fabric 10cm × 10cm for boiling and put into heat preservation leaching drift 60min in above-mentioned beaker, take out fabric, room temperature washing, It dries, bleaching effect is tested using WSD-III full-automatic whiteness instrument: pure cotton fabric being converted into smooth 3 layers, measurement one Average value is converted in 3 differences of block fabric.
Compare the whiteness of the adduct sodium sulphate-hydrogen peroxide-sodium chloride bleaching front and back fabric through each embodiment, it is specific to tie Fruit is see table 1 (the benchmark whiteness before pure cotton fabric bleaching is set as 40):
W1Whiteness after pure cotton fabric bleaching,
W0Benchmark whiteness before pure cotton fabric bleaching.
The bleaching duration of the various embodiments described above, comparative example products obtained therefrom is tested:
It accurately weighs the freshly prepd adduct sodium sulphate-hydrogen peroxide-sodium chloride sample of 10.000g and is placed in 250mL beaker In, add 100ml water to dissolve, is titrated to sample solution pinkiness with potassium permanganate standard titration solution and does not disappear in 60s The volume of as terminal, consumed potassium permanganate standard titration solution is denoted as V0, unit (milliliter);
Again by identical sample solution heating water bath to 90 DEG C, the pure cotton fabric 10cm × 10cm investment beaker for moving back and boiling of learning from else's experience Middle heat preservation leaching drift 60min, takes out fabric, with sample solution after the titration bleaching of same potassium permanganate standard titration solution in pink Color is not disappeared in 60s as terminal simultaneously, and the volume of consumed potassium permanganate standard titration solution is denoted as V at this time1, unit (milliliter).Be calculated resolution ratio, concrete outcome see table 1,
Resolution ratio is below 85% after the bleaching of adduct prepared by the present invention, shows the present invention compared to using pure original Expect that prepared product under equal conditions still maintains considerable active o content after use, it is seen that the decomposition of adduct It significantly reduces, bleaching effective rate of utilization is high, duration is strong, stability is more preferable.
Test can be carried out to the anticaking capacity of the various embodiments described above, comparative example products obtained therefrom: using composed view method of testing, 25 DEG C of temperature, relative humidity 50% environment in, the sample of moisture content≤1% is poured into test funnel and flows to leakage Bucket bottom, the height and base diameter of the cone that measurement sample is formed in funnel bottom, calculate cone oblique line and bottom is straight Diameter angle, included angle is smaller, and powder flowbility is better,
Judgment criteria are as follows: 45 ° of composed view >, poor fluidity;35 °~45 ° mobility of composed view are medium;Composed view 35 ° of good fluidities of <.
The result shows that equal 35 ° of < of static angle, product mobility is preferable, agglomeration resistance after product briquetting stores 3~6 months It has excellent performance, specifically see table 1.
Table 1

Claims (6)

1. a kind of method for preparing adduct sodium sulphate-hydrogen peroxide-sodium chloride using solid waste saltcake, it is characterised in that: described Method is,
(1) solid waste saltcake, hydrogen peroxide and sodium chloride are mixed, is stirred to react 30~60min under room temperature, after reaction Decompression filters, and is separated by solid-liquid separation;Wherein, it is cellulose that the ingredient for controlling the solid waste saltcake is calculated according to weight percent Sulphonic acid ester 2%~5%, microcrystalline cellulose 2%~3%, trithiocarbonic acid sodium 1%~2%, sodium bisulfate 0.5%~1%, sulphur Sulphur 0.5%~1%, zinc sulfate 1%~2%, surplus Na2SO4·10H2O;
(2) solid phase after step (1) separation is dried at 80~120 DEG C 60~90min, obtains sodium sulphate-hydrogen peroxide-chlorine Change sodium adduct product.
2. the method that adduct sodium sulphate-hydrogen peroxide-sodium chloride is prepared using solid waste saltcake as described in claim 1, It is characterized in that: in step (1), according to sodium sulphate, hydrogen peroxide, sodium chloride when solid waste saltcake, hydrogen peroxide and sodium chloride mix Three's molar ratio is 1.2~2.5:2.1~3.5:0.8~1.6.
3. the method that adduct sodium sulphate-hydrogen peroxide-sodium chloride is prepared using solid waste saltcake as described in claim 1, Be characterized in that: in step (1), the hybrid manipulation of solid waste saltcake, hydrogen peroxide and sodium chloride is to add solid waste saltcake and sodium chloride Enter into aqueous hydrogen peroxide solution.
4. the method that adduct sodium sulphate-hydrogen peroxide-sodium chloride is prepared using solid waste saltcake as claimed in claim 3, Be characterized in that: the Solute mass fraction of the aqueous hydrogen peroxide solution is 30%.
5. the method that adduct sodium sulphate-hydrogen peroxide-sodium chloride is prepared using solid waste saltcake as described in claim 1, It is characterized in that: purity >=99.7% of sodium chloride described in step (1).
6. a kind of adduct sodium sulphate-hydrogen peroxide-sodium chloride obtained such as any one of claim 1 to 5 the method is answered With, it is characterised in that: using adduct sodium sulphate-hydrogen peroxide-sodium chloride as bleaching agent.
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CN111109289A (en) * 2019-12-31 2020-05-08 南京福斯特牧业科技有限公司 Stable solid hydrogen peroxide adduct and application thereof in livestock and poultry and aquaculture fields
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