37 results about "BCDMH" patented technology

A deodoring, bleeching and disintifecting composition in the form of powder, particle, lozenge, tablet, effervescent agent, liquid, colloid, or aerosol for various purposes is prepared from chlorinated isocyanuric acid, bromochloro hydrantoin, dibromo hydrantoin, or hypochlorite for providing hypochlorous acid component through reacting on chlorate, chlorite and tabilizer to obtain stable ClO2 system, and adding the corrosion inhibitor of metal.

The invention relates to a smoke type disinfectant containing BCDMH and/or DBDMH, a preparation method and application thereof. The disinfectant comprises the following ingredients by weight parts: 30 to 90 parts of disinfecting active ingredients, 5 to 20 parts of burning agents, 5 to 20 parts of oxidizing agents, 2 to 15 parts of stabilizing agents and 2 to 15 parts of absorbing agents, wherein the disinfecting active ingredients are selected from either the BCDMH or the DBDMH or the combination of the BCDMH and the DBDMH. The disinfectant of the invention has the characteristics of reasonable and advanced recipe, practical structure, excellent and universal disinfecting activity, easy ignition, fast smoke generation, high effective smoke forming rate, efficient and continuous smoke generation, no burning interruption, no spontaneous combustion in the storage and the transportation and the like, in addition, the safety performance, the moistureproof performance, the environmental protection performance and the economic performance of the disinfectant are good, and the disinfectant belongs to an ideal smoke type disinfectant with the advantages of universality, safety, effectiveness, low residue and environment protection.

The invention discloses an industrial production method of fine powder, granular and tablet bromo-chloro-dimethyl hydantoin disinfectants, which includes the 5,5-dimethylhydantoin and the flake caustic soda put in a reaction vessel and dissolved in water. The brine is frozen for cooling. With the use of bromine and the chlorine added, the reaction solution is obtained. The reaction solution is put into a filtration tank. After the vacuum filtrating, the ionic water leaching and purification and the centrifuge dripping, the wet products enter a dryer for drying. Thus the powder bromo-chloro-dimethyl hydantoin is obtained after the crushing. A granulator is used for the powder granulation so that the granular bromo-chloro-dimethyl hydantoin can be obtained. The particles poured into a blender are mixed with the adhesives and lubricants to blend evenly, which enter a preforming machine for tabletting, thus the tablet bromo-chloro-dimethyl hydantoin can be obtained. In the invention, the prior production method feeding order of powder bromo-chloro-dimethyl hydantoin is changed, and the processes such as leaching purification, roll dry granulation are added. The degree of purity of powder and granular products produced reach 99.1%, while that of the tablet product is 98%. With low production cost and simple equipment operation, the waste gas and trash discharge almost do not occur.

The invention discloses a production method of bromo-3-chloro-5,5-dimethylhydantoin (BCDMH) serving as a chemical intermediate. The production method comprises the following steps that A, 5,5-dimethylhydantoin, flake caustic soda, liquid bromine and chlorine react; a reaction material is obtained; B, the reaction material is subjected to centrifugal spin-drying by a scraper bottom unloading centrifuge, subjected to centrifugal washing by deionized water, and spin-dried; a wet product after centrifugal treatment is dried to form a dry product; and C, the dry product is dissolved by acetone, and filtered; after the deionized water is added for diluting and cooling, BCDMH is separated through crystallization; and the dried wet product is BCDMH capable of serving as a chemical oxidizing agent. The content of BCDMH prepared by the method reaches above 99.3%; the content of bromine is 32.85%; the content of chlorine is 14.70%; a trichloromethane insoluble substance is less than or equal to 0.03%; iron ions are less than or equal to 8mg/kg; calcium ions are less than or equal to 24mg/kg; and BCDMH can serve as the chemical intermediate.

The invention relates to a formulation of compound peracetic acid bromine chlorine hydantoin disinfectant which is applicable to killing microorganism such as bacteria, virus and the like in an enclosing house and environment, and a preparation method thereof. The invention is characterized in that peracetic acid stock solution is diluted to be 0.1-1.5% of the original concentration; 95-99.5% of diluent is taken and added with 0.05-1g of bromine chlorine hydantoin to be evenly mixed together; and 0.5-5ml of polyoxyethylene fatty alcohol ether and 0.1-3g of sodium pyrophosphate are added into the mixture and fully and evenly mixed together. The compound disinfectant has the characteristics of being rapid, high in effect, long-acting, low in cost and interference-resistant, and is applicable to disinfection of the animal enclosing house and the environment.

The invention discloses a sterilizing agent emulsion and a preparation method thereof. The sterilizing agent emulsion is prepared from 10 parts of tall oil fatty acid, 1.5 parts of triethanolamine, 1.2 parts of fatty amine polyoxyethylene ether, 1.35 parts of dimethyl sulfate, 50 parts of 2-thiocyanyl methyl thiobenzothiazole, 15 parts of 2-(methoxyl carbamyl) benzimidazole (BCM), 5 parts of Casson ( active materials 14 percent), 5 parts of BCDMH, 2.5 parts of urea, 10 parts of oleic acid, 40 parts of fatty acid methyl ester, 5 parts of diethylene glycol, 5.6 parts of polyoxyethylene castor oil EL-40, 7.4 parts of stearic alcohol polyoxyethylene ether (10EO-20EO) and 3 parts of guar gum solution. Compared with the prior art, the sterilizing agent emulsion has the advantages that various ingredients are used; a recipe containing 2-thiocyanyl methyl thiobenzothiazole is made into the emulsion; the dispersion in the water is easy; the problem of water solubility is solved; a novel sterilizing agent is prepared; the popularization and application values are realized.

A system, a cartridge and a dispensing valve for eliminating a drift or sag in BCDMH output from an inline dispensing valve containing a dispensing cartridge mountable within the inline dispensing valve with the dispensing cartridge containing a batch of water erodible cluster inhibiting BCDMH particles to provide a linear output flow of BCDMH which is responsive to flow of water though a cartridge in the dispensing valve and a method of obtaining a linear output in a dispensing system by increasing the size of particles in a dispensing cartridge in the system.

A process to sanitize fruit and vegetables, which may be used for products that are whole, diced, sliced, peeled, chopped or shredded. The process includes the use of a disinfectant agent, such as, for example, BCDMH, at a pH at, or above, 8.3. A buffer is used to obtain the correct pH and is, preferably, a mixture of calcium, sodium and potassium salts.

The invention discloses a light-weight environment-friendly foam material for a car foot mat and particularly discloses a light-weight environment-friendly foam material in the field of car accessory materials. The light-weight environment-friendly foam material is prepared from the following substances in parts by weight: 30-40 parts of ethylene-vinyl acetate copolymers, 10-15 parts of low-density polyethylene, 10-20 parts of aerogel, 10-20 parts of TPX, 10-20 parts of activated carbon, 30-35 parts of quaternary ammonium salt, 5-8 parts of foamed polystyrene, 8-10 parts of polyarylester, 8-10 parts of sodium tetraborate, 10-20 parts of chloroprene rubber, 2-5 parts of propylene glycol, 2-5 parts of glycerin, 4-6 parts of talcum powder, 8-10 parts of bromochlorohydantoin, 4-6 parts of dibenzoyl peroxide, 5-8 parts of colloidal calcium carbonate filler and 2-5 parts of vulcanization accelerator. The light-weight environment-friendly foam material is light in weight, environment-friendly, healthy and safe; the weight of the light-weight environment-friendly foam material is 1/6 of the weight of the traditional car foot mat; the light-weight environment-friendly foam material has a sterilizing function and is capable of playing a role in preventing mildew, reducing the content of bacteria in a sealed space in a car, taking higher-safety fire-resistant and flame-resistant effects and avoiding various potential safety hazards existing in the car.

The invention relates to the technical field of preparation of disinfection products, and particularly discloses a BCDMH (bromo-3-chloro-5,5-dimethylhydantoin) compound disinfection agent. The BCDMH compound disinfection agent is prepared by mixing the following raw materials of BCDMH, polymerizing aluminum chloride, sodium lauryl sulfate, peregal O, sodium phytate, phytic acid, benzoic acid, succinic acid, calcium carbonate and calcium bicarbonate according to a certain proportional ratio by weight. The BCDMH compound disinfection agent has the advantages that the sterilizing effect and waterpurifying effect are good, the stability is high, the production cost is low, the quick and efficient effects are realized, most of bacteria and viruses affecting the health of a human body can be killed, the harm to the human body is avoided, and the BCDMH compound disinfection agent is suitable for being widely popularized and applied.

A method for controlling the growth of a pipeline biological film by utilizing bromine chlorine hydantoin liposome comprises the following steps of: firstly, dissolving soybean lecithin and cholesterol into a chloroform and ether mixed solvent, adding BCDMH (Bromine Chlorine Dimethyl Hydantoin) acid salt buffer solution, carrying out water bath ultrasound treatment and forming stable emulsion; secondly, adding the emulsion into an eggplant-shaped bottle, placing the eggplant-shaped bottle on a rotary evaporator and evaporating the emulsion after pressure reduction to remove an organic solvent; thirdly, taking down the eggplant-shaped bottle, blowing by nitrogen, removing difficult-to-volatilize diethyl ether existing in the emulsion, continuing to evaporate, forming a uniform lipid membrane on the wall of the bottle, adding PBS (Phosphate Buffered Saline) and obtaining liposome suspension liquid after the membrane on the wall of the eggplant-shaped bottle is cleaned and removed; fourthly, filtering and removing large-particle impurities by using a micro-porous filtering membrane soaked in the PBS, placing at a temperature of 4 DEG C for storage and stripping the microbiological membrane of a simulated pipe network by the prepared bromine chlorine hydantoin liposome. The method has high embedding rate and high biological stripping efficiency and plays slow release and disinfection roles.

The invention discloses a continuous production method of bromochlorohydantoin, belonging to the technical field of disinfectant production. The continuous production method comprises the following steps: synthesizing 5,5-dimethylhydantoin, removing ammonia from an aqueous 5,5-dimethylhydantoin solution, and preparing bromochlorohydantoin. According to the method, water, ammonia gas, carbon dioxide and acetone cyanohydrin are used as raw materials for a reaction to synthesize 5,5-dimethylhydantoin; introducing inert gas into the aqueous 5,5-dimethylhydantoin solution to remove dissolved ammonia; and adding 5,5-dimethylhydantoin and inorganic base into a reaction kettle, conducting cooling, introducing bromine and chlorine, carrying out a bromination and chlorination reaction, centrifugallyspin-drying a reaction material after the reaction is finished, and conducting drying to obtain powdery bromochlorohydantoin. According to the method, dissolved ammonia in the aqueous 5,5-dimethylhydantoin solution is removed through the inert gas, and then bromochlorohydantoin is synthesized, so production steps are reduced, and production cost and potential safety hazards are reduced; and meanwhile, dimethylhydantoin synthesis to continuous bromochlorohydantoin production is realized by linking all the procedures through a conveying pipeline.

The invention relates to the field of thermal insulation materials, and particularly discloses a bacteriostatic thermal insulation board for a refrigeration house and a preparation method of the bacteriostatic thermal insulation board. The bacteriostatic insulation board for the refrigeration house comprises the following components in parts by weight: phenolic resin, a filling agent, a composite antibacterial agent, a foaming agent, a curing agent, an organic binder, hollow glass beads, aluminum hydroxide and sodium bentonite. The composite antibacterial agent is prepared from the following components in parts by weight: 2.5 to 3.5 parts of modified zeolite, 5 to 8 parts of a snail extracting solution, 2.8 to 3.4 parts of graphene oxide, 1.5 to 2.5 parts of nano-hydroxyapatite and 1 to 2 parts of 3-bromo-1-chloro-5,5-dimethylhydantoin. The preparation method comprises the following steps: uniformly mixing the phenolic resin, the filling agent, the foaming agent, the hollow glass beads, the aluminum hydroxide and the sodium bentonite, adding the curing agent, the composite antibacterial agent and the organic binder, uniformly conducting stirring, and conducting foaming and curing. The bacteriostatic insulation board for the refrigeration house has the advantages of being good in mildew-proof and antibacterial effect and excellent in waterproof effect and deodorization effect.

The invention discloses a BCDMH disinfection smoke agent. BCDMH is taken as an effective ingredient, the disinfection smoke agent is prepared with fuel, a combustion improver smoke producing agent, a flame retardant and a binder, and weight percents of all the components are as follows: BCDMH: 5-30%; white sugar fuel: 10-30%; a combustion improver potassium hypochlorite: 20-40%; a smoke producing agent ammonium chloride: 10-20%; a flame retardant clay: 20-40%; and a binder hydroxymethyl cellulose: 5-15%. The BCDMH disinfection smoke agent disclosed by the invention has the advantages that BCDMH is taken as the effective ingredient, the disinfection smoke agent is prepared with the fuel, the combustion improver smoke producing agent, the flame retardant and the binder, and epidemic focus disinfection is carried out on relatively airtight places such as a family, a school, a dormitory, a workshop and an underground tunnel; the BCDMH disinfection smoke agent is easy to use, the product is placed on a tile on the ground when in use, usage quantity is calculated according to the size, channels such as doors and windows are closed, and the product is ignited and fumigated. Detection by virtue of related methods of National Ministry of Health Technical Specification for Disinfection (2002) shows that the product can disinfect the air in an unmanned room, and the disinfection is qualified when natural bacterium decay rate every time is higher than or equal to 90%.

The invention discloses a bromochlorohydantoin disinfectant for soil remediation, and the bromochlorohydantoin disinfectant is characterized by being prepared from the following components in parts by weight: 40 to 60 parts of compound probiotics, 10 to 14 parts of bromochlorohydantoin, 6 to 10 parts of a surfactant, 9 to 16 parts of an adhesive and 15 to 20 parts of effervescent tablets. The purpose of soil disinfection and insect killing is achieved, soil insect pests are reduced, the decomposition rate of bromochlorohydantoin is high, and pesticide residues in the disinfected soil are greatly reduced.

The invention discloses a circulating water sterilization stripping agent and an application method thereof. The circulating water sterilization stripping agent comprises guanidine salt, bromine salt and water. The guanidine salt is polyhexamethylene guanidine; the bromine salt is bromochlorohydantoin. The invention has the following beneficial effects: the foam-free sewage treatment agent has the characteristic of no foam, has small influence on COD of on-site circulating water due to a small addition amount, and does not cause pressure on sewage discharge; the sludge stripping agent is small in dosage, high in cost performance and free of influence on pollution discharge, and can be widely applied to sterilization, algae removal and slime stripping of circulating cooling water in petroleum, chemical engineering, oil fields, electric power and metallurgical industries.