CN114766510A - Domestic drinking water disinfection powder and preparation method thereof - Google Patents
Domestic drinking water disinfection powder and preparation method thereof Download PDFInfo
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- CN114766510A CN114766510A CN202210565901.XA CN202210565901A CN114766510A CN 114766510 A CN114766510 A CN 114766510A CN 202210565901 A CN202210565901 A CN 202210565901A CN 114766510 A CN114766510 A CN 114766510A
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- powder
- drinking water
- sodium
- domestic drinking
- disinfection
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- 239000000843 powder Substances 0.000 title claims abstract description 88
- 239000003651 drinking water Substances 0.000 title claims abstract description 50
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 50
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 16
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 16
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 16
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 15
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 3
- CEJLBZWIKQJOAT-UHFFFAOYSA-N dichloroisocyanuric acid Chemical compound ClN1C(=O)NC(=O)N(Cl)C1=O CEJLBZWIKQJOAT-UHFFFAOYSA-N 0.000 claims abstract 5
- 239000002994 raw material Substances 0.000 claims description 40
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 25
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 20
- 238000012216 screening Methods 0.000 claims description 19
- 239000000645 desinfectant Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 17
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 10
- 229960001484 edetic acid Drugs 0.000 claims description 10
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 claims description 10
- 239000011780 sodium chloride Substances 0.000 claims description 10
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 10
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 10
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 10
- 235000011152 sodium sulphate Nutrition 0.000 claims description 10
- 229940075582 sorbic acid Drugs 0.000 claims description 10
- 235000010199 sorbic acid Nutrition 0.000 claims description 10
- 239000004334 sorbic acid Substances 0.000 claims description 10
- 238000007605 air drying Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000003230 hygroscopic agent Substances 0.000 claims 1
- 239000011236 particulate material Substances 0.000 claims 1
- UNWRHVZXVVTASG-UHFFFAOYSA-N 1,3-dichloro-1,3,5-triazinane-2,4,6-trione;sodium Chemical compound [Na].ClN1C(=O)NC(=O)N(Cl)C1=O UNWRHVZXVVTASG-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000009725 powder blending Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/06—Aluminium; Calcium; Magnesium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- 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
- A01N25/22—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 ingredients stabilising the active ingredients
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the technical field of disinfection powder, in particular to domestic drinking water disinfection powder and a preparation method thereof, which can reduce the cost of domestic drinking water disinfection, improve the storage stability of the drinking water disinfection powder and improve the storage convenience of the disinfection powder; comprises sodium hypochlorite, calcium hydroxide, sodium dichloroisocyanurate, auxiliary powder and stabilizing powder, and the mass percentages are respectively as follows: 10-20% of sodium hypochlorite, 30-45% of calcium hydroxide, 10-25% of sodium dichloroisocyanurate and the balance of auxiliary powder and stable powder mixture.
Description
Technical Field
The invention relates to the technical field of disinfection powder, in particular to domestic drinking water disinfection powder and a preparation method thereof.
Background
The disinfection powder is a sterilization drug, is suitable for the sterilization and disinfection of pathogenic microorganisms such as bacteria, viruses, fungi and the like, is mainly used in public places such as hospitals, hotels, hair salons and the like, and the conventional disinfection methods for drinking water such as ozone disinfection, ultraviolet disinfection and the like at present can effectively kill bacteria, but have the condition of higher equipment cost, and the conventional liquid disinfectant on the market has the conditions of inconvenient transportation and easy evaporation in the storage process, so the domestic drinking water disinfection powder which is convenient to store and improves the disinfection effect is provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides the domestic drinking water disinfectant powder and the preparation method thereof, wherein the cost of disinfecting the domestic drinking water is reduced, the storage stability of the drinking water disinfectant powder is improved, and the storage convenience of the disinfectant powder is improved.
The invention relates to a domestic drinking water disinfection powder, which comprises sodium hypochlorite, calcium hydroxide, sodium dichloroisocyanurate, auxiliary powder and stable powder, and the domestic drinking water disinfection powder comprises the following components in percentage by mass: 10-20% of sodium hypochlorite, 30-45% of calcium hydroxide, 10-25% of sodium dichloroisocyanurate and the balance of auxiliary powder and stable powder mixture.
Preferably, the auxiliary powder comprises citric acid, sorbic acid and hygroscopic powder;
the weight percentages are respectively as follows: 1-8% of citric acid and 1-8% of sorbic acid.
Preferably, the stabilizing powder comprises one of sodium oxide or ethylenediamine tetraacetic acid;
the weight percentages are as follows: 1-4% of sodium oxide or ethylenediamine tetraacetic acid.
Preferably, the moisture absorbent comprises one of sodium sulfate or sodium chloride;
the weight percentages are respectively as follows: 1 to 3 percent of sodium sulfate or sodium chloride.
The invention relates to a preparation method of domestic drinking water disinfection powder, which comprises the following steps:
step 1, weighing raw materials: respectively weighing sodium hypochlorite, calcium hydroxide, sodium dichloroisocyanurate, citric acid, sorbic acid, sodium oxide or ethylenediamine tetraacetic acid, sodium sulfate or sodium chloride powder;
step 2, screening and filtering: respectively placing the raw material powder into screening equipment, screening the granular raw materials in a vibration screening mode, and placing the separated small granular raw materials into a container together for storage for later use;
step 3, crushing materials: putting the large particle raw materials subjected to vibration screening into a rolling crusher for rolling and crushing, returning the crushed particle raw materials to the vibration screening in the step 2 until the raw material particles are completely filtered, and putting the raw material particles into a container together for later use;
step 4, mixing and stirring: putting the raw material particles in the container into a stirrer for mixing and stirring;
step 5, air drying treatment: conveying dry air into the stirrer in a bottom air supply mode, and drying raw materials in the stirrer in a stirring process to obtain drinking water disinfection powder;
and 6, packaging: lifting and conveying the drinking water disinfectant powder to filling equipment in a spiral belt conveying mode, and sealing and packaging the drinking water disinfectant powder.
Preferably, the particle raw material in the step 2 is screened by a screen with 80-120 meshes for 2-3 times in a vibration mode.
Preferably, in the step 4, the stirrer adopts a single stirring paddle, the rotating speed of the stirring paddle is 60-90 r/min, clockwise stirring is adopted for 15-20 min, and anticlockwise stirring is adopted for 15-20 min.
Preferably, the air drying temperature in the step 5 is 5-12 ℃, the air drying is firstly carried out clockwise for 5-8 min, the air drying temperature is 9-12 ℃ clockwise, then the air drying is carried out counterclockwise for 5-8 min, and the air drying temperature is 5-7 ℃ counterclockwise.
Preferably, in the step 4, the height of the granular raw material put into the stirrer is not more than 1/2 of the stirrer.
Compared with the prior art, the invention has the beneficial effects that: through making sodium hypochlorite, calcium hydroxide, dichloro isocyanuric acid sodium, supplementary powder and stable powder mixed processing into the disinfection powder, effectively improve life drinking water disinfection effect, reduce the sterile cost of life drinking water, improve the storage stability of drinking water disinfection powder, simultaneously through with drinking water disinfection powder seal packing, reduce the condition that the disinfection powder stored or wet in the transportation, improve the storage convenience of disinfection powder.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
The weight percentages are respectively as follows: 10-20% of sodium hypochlorite, 30-45% of calcium hydroxide, 10-25% of sodium dichloroisocyanurate, 1-8% of citric acid, 1-8% of sorbic acid, 1-4% of sodium oxide or ethylene diamine tetraacetic acid and sodium sulfate or sodium chloride; the disinfectant powder is prepared by mixing sodium hypochlorite, calcium hydroxide, sodium dichloroisocyanurate, auxiliary powder and stabilizing powder, so that the disinfection effect of the drinking water is effectively improved, the disinfection cost of the drinking water is reduced, and the storage stability of the drinking water disinfectant powder is improved.
Example 2
The weight percentages are respectively as follows: 10 to 20 percent of sodium hypochlorite, 30 to 45 percent of calcium hydroxide, 10 to 25 percent of sodium dichloroisocyanurate, 1 to 8 percent of citric acid, 1 to 8 percent of sorbic acid, 1 to 4 percent of sodium oxide or ethylene diamine tetraacetic acid and sodium sulfate or sodium chloride are respectively weighed, the sodium hypochlorite, the calcium hydroxide, the sodium dichloroisocyanurate, the citric acid, the sorbic acid, the sodium oxide or ethylene diamine tetraacetic acid, the sodium sulfate or sodium chloride powder are respectively put into a screening device, the raw material powder is respectively placed into a screening device for screening by adopting a vibration screening mode, the separated small particle raw materials are together put into a container for storage, the large particle raw materials screened by vibration are put into a rolling crusher for rolling and crushing, the crushed particle raw materials are returned to the vibration screening in the step 2 until the raw material particles are completely filtered, and then the raw material particles are together put into the container for standby, putting raw material particles in a container into a stirrer for mixing and stirring, conveying dry air into the stirrer in a bottom air supply mode, drying the raw material in the stirrer in a stirring process to obtain drinking water disinfectant powder, lifting and conveying the drinking water disinfectant powder to filling equipment in a spiral belt conveying mode, and sealing and packaging the drinking water disinfectant powder; through making sodium hypochlorite, calcium hydroxide, dichloro isocyanuric acid sodium, supplementary powder and stable powder mixed processing into the disinfection powder, effectively improve life drinking water disinfection effect, reduce the sterile cost of life drinking water, improve the storage stability of drinking water disinfection powder, simultaneously through with drinking water disinfection powder seal packing, reduce the condition that the disinfection powder stored or wet in the transportation, improve the storage convenience of disinfection powder.
As shown in figure 1, the invention relates to a domestic drinking water disinfection powder and a preparation method thereof, during operation, sodium hypochlorite, calcium hydroxide, sodium dichloroisocyanurate, citric acid, sorbic acid, sodium oxide or ethylene diamine tetraacetic acid, sodium sulfate or sodium chloride powder are respectively weighed, the raw material powder is respectively placed in a screening device, particle raw materials are screened by adopting a vibration screening mode, separated small particle raw materials are together placed in a container for standby, then large particle raw materials screened by vibration are placed in a crusher for crushing by rolling, the crushed particle raw materials are screened by vibration until the raw material particles are completely filtered, the raw material particles are together placed in the container for standby, then the raw material particles in the container are placed in a stirrer for mixing and stirring, then dry air is conveyed into the stirrer by adopting a bottom air supply mode, so that the raw materials in the stirrer are dried during the stirring process, then obtaining the disinfection powder for drinking water.
The main functions realized by the invention are as follows: through with sodium hypochlorite, calcium hydroxide, dichloro isocyanuric acid sodium, the disinfection powder is made to supplementary powder and stable powder blending, effectively improves life drinking water disinfection effect, green reduces disinfection powder self to the health hazard of human body, reduces the disinfected cost of life drinking water, improves the storage stability of drinking water disinfection powder, simultaneously through with drinking water disinfection powder seal package, reduce the condition that the disinfection powder stored or wet in the transportation, improve the storage convenience of disinfection powder.
All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The domestic drinking water disinfection powder is characterized by comprising sodium hypochlorite, calcium hydroxide, sodium dichloroisocyanurate, auxiliary powder and stable powder, and the domestic drinking water disinfection powder comprises the following components in percentage by mass: 10-20% of sodium hypochlorite, 30-45% of calcium hydroxide, 10-25% of sodium dichloroisocyanurate and the balance of auxiliary powder and stable powder mixture.
2. The disinfection powder for domestic drinking water as claimed in claim 1, wherein said auxiliary powders comprise citric acid, sorbic acid and hygroscopic powders;
the weight percentages are as follows: 1-8% of citric acid and 1-8% of sorbic acid.
3. The domestic drinking water disinfectant powder according to claim 1, wherein said stabilizing powder comprises one of sodium oxide or ethylenediaminetetraacetic acid;
the weight percentages are respectively as follows: 1-4% of sodium oxide or ethylenediamine tetraacetic acid.
4. The domestic drinking water disinfectant powder according to claim 1, wherein said hygroscopic agent comprises one of sodium sulfate or sodium chloride;
the weight percentages are respectively as follows: 1 to 3 percent of sodium sulfate or sodium chloride.
5. A preparation method of domestic drinking water disinfection powder is characterized by comprising the following steps:
step 1, weighing raw materials: respectively weighing sodium hypochlorite, calcium hydroxide, sodium dichloroisocyanurate, citric acid, sorbic acid, sodium oxide or ethylene diamine tetraacetic acid, sodium sulfate or sodium chloride powder;
step 2, screening and filtering: respectively placing the raw material powder into screening equipment, screening the granular raw materials in a vibration screening mode, and placing the separated small granular raw materials into a container together for storage for later use;
step 3, crushing materials: putting the large particle raw materials subjected to vibration screening into a rolling crusher for rolling and crushing, returning the crushed particle raw materials to the vibration screening in the step 2 until the raw material particles are completely filtered, and putting the raw material particles into a container together for later use;
and step 4, mixing and stirring: putting the raw material particles in the container into a stirrer for mixing and stirring;
and 5, air drying treatment: conveying dry air into the stirrer in a bottom air supply mode, and drying raw materials in the stirrer in a stirring process to obtain drinking water disinfection powder;
and 6, packaging: lifting and conveying the drinking water disinfectant powder to filling equipment in a spiral belt conveying mode, and sealing and packaging the drinking water disinfectant powder.
6. The domestic drinking water disinfectant powder according to claim 5, wherein the raw material particles in step 2 are screened with a 80-120 mesh screen and vibrated for 2-3 times.
7. The domestic drinking water disinfectant powder according to claim 5, wherein in step 4, the stirrer is a single stirring paddle, the rotation speed of the stirring paddle is 60-90 r/min, and the stirring is performed clockwise for 15-20 min and counterclockwise for 15-20 min.
8. The disinfection powder for domestic drinking water as claimed in claim 5, wherein the air-drying temperature in step 5 is 5-12 ℃, and the air-drying temperature is 5-8 min clockwise, 9-12 ℃ clockwise, 5-8 min counterclockwise and 5-7 ℃ counterclockwise.
9. The domestic drinking water disinfectant powder according to claim 5, wherein in step 4, the height of the particulate material placed in the mixer is not more than 1/2 of the mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210565901.XA CN114766510A (en) | 2022-05-24 | 2022-05-24 | Domestic drinking water disinfection powder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210565901.XA CN114766510A (en) | 2022-05-24 | 2022-05-24 | Domestic drinking water disinfection powder and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114766510A true CN114766510A (en) | 2022-07-22 |
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| CN202210565901.XA Pending CN114766510A (en) | 2022-05-24 | 2022-05-24 | Domestic drinking water disinfection powder and preparation method thereof |
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Citations (10)
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|---|---|---|---|---|
| CN1149396A (en) * | 1995-10-25 | 1997-05-14 | 李殿波 | Slow-release type sterilizing tablet and its production method |
| CN102283247A (en) * | 2011-07-23 | 2011-12-21 | 中国农业科学院兰州畜牧与兽药研究所 | Veterinary disinfection powder and preparation method thereof |
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-
2022
- 2022-05-24 CN CN202210565901.XA patent/CN114766510A/en active Pending
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|---|---|---|---|---|
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Application publication date: 20220722 |