CN1636456A - Sodium dibromoisocyanurate as disinfectant and its production process - Google Patents
Sodium dibromoisocyanurate as disinfectant and its production process Download PDFInfo
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- CN1636456A CN1636456A CN 200410060341 CN200410060341A CN1636456A CN 1636456 A CN1636456 A CN 1636456A CN 200410060341 CN200410060341 CN 200410060341 CN 200410060341 A CN200410060341 A CN 200410060341A CN 1636456 A CN1636456 A CN 1636456A
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Abstract
The present invention is one kind of environment protecting disinfectant of sodium dibromoisocyanurate and its production process, and aims at eliminating the environmental pollution caused by disinfectant and making disinfectant easy to use. The disinfectant is produced with sodium dibromoisocyanurate, acid matter, disintegrant, sodium sulfate and alkali matter. The production process includes reaction of trichloroisocyanic acid, sodium and potassium bromide or liquid bromine, flushing with organic solution, dewatering and stoving to produce sodium dibromoisocyanurate and subsequent mixing with other material. The present invention has simple production process, and the product has high halogen content, less smell, no toxicity, high stability, no carcinogenic effect, mild effect, no irritation to skin and mucous membrane, high disinfecting effect and wide use.
Description
One, the technical field
The invention relates to a sodium dibromoisocyanurate disinfectant for environmental protection and disinfection and a production method thereof.
Second, background Art
Chlorine-containing formulations have been used for over a hundred years as disinfectants. Because of the factors of easy production, low price, convenient use, definite sterilization effect and the like, the disinfectant still occupies the majority of shares in the current market of disinfectant medicines. However, chlorine-containing formulations are increasingly being disliked by users because of their insurmountable disadvantages. Firstly, it is an unpleasant odor that is too strong to be tolerated. Secondly, the chlorine can generate substances such as trichloromethane, chlorophenol and the like with organic matters in water, and has the effects of carcinogenesis, liver poisoning and kidney poisoning; the generated chloroacetonitrile and chloroketone have mutagenic gene poisoning effect, and most of the current use in various hospitals are organic chlorine-containing preparations, such as: trichloroisocyanuric acid or sodium dichloroisocyanurate. According to the reports: organic chlorine-containing agents are more toxic than inorganic chlorine, bromine, and ozone. Chlorine-containing preparations cause environmental pollution and attract more and more attention.
In the former years, chlorine dioxide is mostly used for replacing chlorine-containing preparations in countries with developed economic benefits in Europe and America, the chlorine-containing preparations do not pollute the environment, the chlorine-containing preparations are also called as environment-friendly disinfectants, but the chlorine-containing preparations are complex to operate in use and need to be prepared for use at present, the consumption of the activating agents and the activation time need to be calculated in preparation, and then the dilution concentration needs to be calculated, so the chlorine-containing preparations are inconvenient to use, and the chlorine-containing preparations are difficult to popularize.
Third, the invention
In view of the above situation, the present invention provides a novel sodium dibromoisocyanurate disinfectant for environmental protection and disinfection and a production method thereof, which can effectively solve the problems of environmental pollution and inconvenient use caused by chlorine-containing preparations3N3O3CL3) After sodium hydroxide (NaOH) and potassium bromide (KBr) are selected according to the weight ratio of 1: 2, trichloroisocyanuric acid and sodium hydroxide are placed in a reaction kettle for cooling, then liquid bromine is introduced or potassium bromide solution is dripped, after full reaction, the solution is washed by organic solvent, potassium chloride and sodium chloride which are generated after reaction are removed, dehydration and drying are carried out, and the obtained sodium dibromoisocyanurate is uniformly mixed with acidic substances, disintegrating agent, sodium sulfate and alkaline substancesThe method is simple, and the product is a high-efficiency, low-toxicity, broad-spectrum and quick sterilization disinfectantEffectively and quickly killing various bacteria, fungi, spores, mould and cholera solitary bacteria. It has specific effect on killing hepatitis A and hepatitis B virus, and good disinfection effect on sexual virus and AIDS virus, and has the functions of killing algae, deodorizing, purifying water and bleaching, and has no harm to human body and animal and no secondary pollution. The method is widely used for disinfection of swimming pools, disinfection of drinking water, industrial water circulation treatment, food processing industry, food sanitation industry, aquaculture industry, daily chemical industry, medical treatment, larvae control, epidemic prevention, garbage treatment, large-area sterilization and infection prevention after hotels, restaurants, natural disasters and human accidents.
The product has the advantages of convenient use, low cost, safety, reliability, strong chemical stability, lasting disinfection effect, no limit of PH value, etc.
Description of the drawings
Fig. 1 and 2 are two process flow charts for preparing sodium dibromoisocyanurate.
Fifth, detailed description of the invention
The invention provides a sodium dibromoisocyanurate disinfectant (tablet) which is prepared from the following components in percentage by weight: 23-70% of sodium dibromoisocyanurate, 5-15% of acidic substance, 5-15% of disintegrating agent, 5-15% of sodium sulfate and 5-15% of alkaline substance, the total amount is 100%; the acidic substance is citric acid or tartaric acid or boric acid; the disintegrant is sodium carboxymethyl cellulose or is prepared by sodium bicarbonate and citric acid according to the weight ratio of 2: 1; the alkaline substance is sodium bicarbonate or sodium carbonate; the sodium dibromoisocyanurate is prepared from 1 part (20%) of trichloroisocyanuric acid, 2 parts (40%) of sodium hydroxide and 2 parts (40%) of potassium bromide or liquid bromine by weight.
The production method of the sodium dibromoisocyanurate disinfectant (tablet) comprises the steps of firstly preparing sodium dibromoisocyanurate, which is shown in figure 1 and figure 2, and firstly taking 1 part (20%) of trichloroisocyanuric acid by weightCyanuric acid (C)3N3O3CL3) And 2 parts (40%) of sodium hydroxide (NaOH) are placed in a reaction kettle and cooled to 5-15 ℃, liquid bromine with the mass concentration of 98% is introduced or potassium bromide solution is dripped in, the reaction kettle is washed by organic solution, the organic solution can be absolute ethyl alcohol (ethanol), the dosage of the absolute ethyl alcohol is 20% of the total weight of trichloroisocyanuric acid, sodium hydroxide and potassium bromide or liquid bromine, potassium chloride and sodium hydride which are reaction products are removed after washing, sodium dibromoisocyanurate solution is obtained, the dehydration is carried out, the drying is carried out at the temperature of less than 70 ℃, the water content is less than or equal to 0.5%, and the finished product sodium dibromoisocyanurate is obtained, wherein in the process, the chemical reaction equation is as follows: the sodium dibromoisocyanurate is white or light yellow crystalline powder with the mass standard of not less than 98 percent, 0.1 to 0.5 percent of water insoluble substance, not more than 0.5 percent of water, 5.5 to 6.5 percent of 1 percent of aqueous solution PH, and the sodium dibromoisocyanurate is preparedAfter that, the following components by weight percentage are added: 23-70 percent of sodium dibromoisocyanurate, 5-15 percent of acid substance, 5-15 percent of disintegrating agent, 5-15 percent of sodium sulfate and 5-15 percent of alkaline substance are evenly mixed to prepare the disinfectant (tablet). When in use, the product of the invention is generally aqueous solution, and the content of the aqueous solution is 1-6000 mg/L.
The preparation of sodium dibromoisocyanurate can also adopt the process method shown in figure 2, the difference shown in figure 1 and figure 2 is only the difference between trichloroisocyanuric acid and isocyanuric acid, and the difference between potassium bromide and liquid bromine, and the disinfectant prepared by preparing sodium dibromoisocyanurate in any form and taking the sodium dibromoisocyanurate as a main raw material is in the protection scope of the invention.
Sodium dibromoisocyanurate is a novel second-generation bromine release type disinfectant, has the advantages of high content of effective halogen, small smell, good stability, no generation of carcinogenic substances, mild action, no irritation to skin and mucosa and the like, and has the tendency of replacing chlorinated isocyanuric acids; the detection shows that the disinfectant (tablet) prepared by using sodium dibromoisocyanurate as main material has effective halogen content of 50%. The reduction rate of the effective halogen is 3.06 percent after the storage for 3 months at 37 ℃, the stability meets the requirement of the first minute book of the third edition of the disinfection technical Specification of the ministry of health, and the effective period is two years. The PH value of the disinfectant containing 300mg/L of effective halogen is 6.2. Under the experimental temperature of 20 +/-2 ℃, the killing rate of the disinfectant containing 100mg/L of effective halogen to staphylococcus aureus and escherichia coli is 99.97 percent in 5 minutes. The organic matter, temperature and PH value have no obvious influence on the sterilization effect of the disinfectant containing 2mg/L effective halogen. The minimum dosage required by the three experiments for achieving the disinfection effect on the escherichia coli by 0cfu/100ml is 1mg/L of effective halogen for 3 minutes. The sampling test result shows that the total number of bacteria is less than 10cfu/100ml and the colibacillus is less than 3cfu after disinfection. The disinfection effect of the disinfectant containing 15mg/L of effective halogen on coliform in a natural water sample for 7 minutes reaches 0cfu/100 ml. The sterilizing liquid containing 300mg/L of effective halogen acts for 3 minutes, and the sterilizing rate of natural bacteria on the surface of the wooden paint is 95.83 percent.
Toxicology detection, using 5 times of sample application concentration as test substance, its male and female mice acute oral LD50The values are all more than 5000mg/kg b.wt, which is a practical non-toxic grade.
In a word, the sodium dibromoisocyanurate disinfectant is a new high-efficiency broad-spectrum disinfectant, has good disinfection effect, safety, reliability, wide application, no toxicity, no harm and extremely convenient use, strengthens the consciousness of disinfection and environmental protection along with the improvement of living standard of people, is certainly accepted by more and more people by gradually replacing chlorine-containing disinfectant, has wide use prospect and has huge economic and social benefits.
Claims (6)
1. The sodium dibromoisocyanurate disinfectant is characterized by being prepared from the following components in percentage by weight:
23-70% of sodium dibromoisocyanurate, 5-15% of acidic substance, 5-15% of disintegrating agent, 5-15% of sodium sulfate and 5-15% of alkaline substance, the total amount is 100%.
2. The sodium dibromoisocyanurate disinfectant of claim 1 wherein said sodium dibromoisocyanurate is made from, by weight, 1 part trichloroisocyanuric acid, 2 parts sodium hydroxide and 2 parts potassium bromide.
3. The sodium dibromoisocyanurate disinfectant of claim 1 wherein said acidic species is citric acid or tartaric acid or boric acid.
4. The disinfectant according to claim 1, wherein the disintegrant is sodium carboxymethylcellulose or is prepared from sodium bicarbonate and lemon in a weight ratio of 2: 1.
5. The disinfectant according to claim 1, wherein said alkaline substance is sodiumbicarbonate or sodium carbonate.
6. The production method of the sodium dibromoisocyanurate disinfectant of the claim 1 is realized, which is characterized in that the sodium dibromoisocyanurate is prepared firstly, that is, 1 part of trichloroisocyanuric acid and 2 parts of sodium hydroxide are taken by weight and put into a reaction kettle, cooled to 5-15 ℃, liquid bromine is introduced or potassium bromide solution is dripped in, then the sodium dibromoisocyanurate disinfectant is washed by organic solution, the dosage of the sodium dibromoisocyanurate disinfectant is 20 percent of the total weight of the trichloroisocyanuric acid, the sodium hydroxide and the potassium bromide or the liquid bromine, potassium chloride and sodium hydride which are reaction products are removed, the sodium dibromoisocyanurate solution is obtained, the sodium dibromoisocyanurate disinfectant is dehydrated, and the sodium dibromoisocyanurate disinfectant is dried at the temperature of less than 70 ℃ and the moisture content is less than or equal to 0.5 percent, and then the sodium dibromo: mixing 23-70% of sodium dibromoisocyanurate with 5-15% of acidic substance, 5-15% of disintegrating agent, 5-15% of sodium sulfate and 5-15% of alkaline substance uniformly.
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| CNB2004100603414A CN1295961C (en) | 2004-12-20 | 2004-12-20 | Sodium dibromoisocyanurate as disinfectant and its production process |
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| CNB2004100603414A CN1295961C (en) | 2004-12-20 | 2004-12-20 | Sodium dibromoisocyanurate as disinfectant and its production process |
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| CN1636456A true CN1636456A (en) | 2005-07-13 |
| CN1295961C CN1295961C (en) | 2007-01-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109805036A (en) * | 2019-01-24 | 2019-05-28 | 沈阳溢源生物科技有限公司 | A kind of composite disinfection agent |
| CN114766509A (en) * | 2022-05-16 | 2022-07-22 | 深圳市玛斯特威科技开发有限公司 | Aviation disinfectant and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1161140A (en) * | 1995-01-21 | 1997-10-08 | 蒋方方 | Self-removed, quick dissolved, quick effect double layer disinfecting tablet and process for producing same |
| CN1136114A (en) * | 1996-02-08 | 1996-11-20 | 汪文才 | Z-shaped reinforced seamless rail without clamping plates on end faces |
| CN1190533A (en) * | 1998-03-20 | 1998-08-19 | 钱小刚 | Biocide composition for plant pathogenic microganism, preparation method and application thereof |
| CN1073346C (en) * | 1998-06-05 | 2001-10-24 | 李雪松 | Disinfecting detergent tablet |
| JP4479863B2 (en) * | 1999-01-28 | 2010-06-09 | 日産化学工業株式会社 | N-monobromoisocyanuric acid metal salt hydrate and process for producing the same |
| JP4708597B2 (en) * | 2001-05-16 | 2011-06-22 | 四国化成工業株式会社 | Disinfectant composition |
| CN1505930A (en) * | 2002-12-13 | 2004-06-23 | 国家农产品保鲜工程技术研究中心(天津 | Smoke agent for sterilizing refrigeration house and processing workshop and its prepn process |
| CN1454476A (en) * | 2002-12-13 | 2003-11-12 | 国家农产品保鲜工程技术研究中心（天津） | Method of inhibiting rottenness during storage and production process of agricultural products |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109805036A (en) * | 2019-01-24 | 2019-05-28 | 沈阳溢源生物科技有限公司 | A kind of composite disinfection agent |
| CN114766509A (en) * | 2022-05-16 | 2022-07-22 | 深圳市玛斯特威科技开发有限公司 | Aviation disinfectant and preparation method thereof |
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| CN1295961C (en) | 2007-01-24 |
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