24 results about "Bromate salt" patented technology

The invention discloses a method for synchronously removing bromate and new pollutants in water by using a far ultraviolet light / bromate process. The method comprises the following steps: radiating a water body containing the bromate and the new pollutants by using far ultraviolet light; the bromate can be efficiently degraded by utilizing an far ultraviolet light source with a high molar absorption coefficient, so that new pollutants can be further degraded by generated oxidizing free radicals and reducing species, and the bromate and the new pollutants can be synchronously and efficiently removed. Under the condition of 800 mJ cm <-2 >, the degradation rate of bromate can reach 54%; under the condition of 200 mJ cm <-2 >, the removal rate of new pollutants can reach 90% or above; according to the method, collaborative purification of the two pollutants is achieved, compared with removal of new pollutants by independently using far ultraviolet light, the far ultraviolet light / bromate technology is higher in new pollutant removal efficiency, and the method has the advantages of being efficient, environmentally friendly and free of chemicals; according to the method, the bromate-containing water body generated after ozone or ultraviolet / chlorine disinfection of a water plant can be utilized in situ, so that the water treatment cost can be saved.

The invention discloses adding equipment for bromate electrolyte, and particularly relates to the field of electrolysis equipment.The adding equipment comprises a base, a driving mechanism and a gantry mounting frame are fixedly mounted at the upper end of the base, and the gantry mounting frame is located at the right end of the driving mechanism; a mounting plate is fixedly mounted at the right end of the driving mechanism, the right end of the mounting plate penetrates through the gantry mounting frame and extends to the right side of the gantry mounting frame, and an electrolyte storage box is fixedly mounted on the lower end face of the mounting plate and located on the right side of the gantry mounting frame; the middle position of the lower end of the electrolyte storage box is fixedly provided with and communicates with a liquid outlet pipe, and the liquid outlet pipe is fixedly provided with a switch valve. The problem that it is difficult for electrolyte adding equipment to be added into electrolytic cells of different specifications and sizes is solved, the automatic cleaning function is achieved, and more convenience is achieved.

The application provides a preparation method of low-impurity vonerogefumate. The application provides a method for removing impurities A-E in the preparation of vonerogefumate, wherein vonerogefumate is reacted with hydrobromic acid to obtain vonerogefumate hydrobromide, and the method specifically comprises the following steps: (1) dissolving vonerogefumate and hydrobromic acid in a solvent; (2) cooling or directly precipitating a solid; and (3) separating to obtain vonerogefumate hydrobromide. The method can remove impurities A-E which are difficult to remove by a recrystallization refining method, and the method has good selectivity for impurities A-E. The application provides an impurity D, a preparation method thereof and application of the impurity D as an impurity control sample of vonerogefumate.

The application discloses a kind of dual-wavelength ultraviolet light synergistic ozone micro-nano bubble treatment methyl orange wastewater method, belong to wastewater treatment technical field.The method is first to the micro-nano bubble generator is carried out organic solvent ultrasonic cleaning, deionized water flushing and drying pretreatment, then preparation ozone micro-nano bubble water, finally under the condition of stirring ozone micro-nano bubble water is mixed with methyl orange solution, through UV-222 and UV-254 dual-wavelength ultraviolet lamp irradiation realizes methyl orange degradation.The application combines the synergistic effect of ozone micro-nano bubble and dual-wavelength ultraviolet light, strengthens hydroxyl radical generation and organic matter photolysis, improves methyl orange decolorization and mineralization efficiency, can also photolyze debromination to avoid bromate byproduct, whole process does not need to add reagent, no sludge is generated, equipment system is simple and easy to control, applicable to the treatment of methyl orange azo dye wastewater, with good engineering application value.

The present invention relates to a process for the industrial-scale production of 5-{2-[benzyl-(1-(4-hydroxyphenyl)-1-methylethyl)amino]-1-hydroxyethyl}benzene-1,3-diol hemifumarate, a salt consisting of two molecules of 5-{2-[benzyl-(1-(4-hydroxyphenyl)-1-methylethyl)amino]-1-hydroxyethyl}benzene-1,3-diol and one molecule of fumaric acid, and having the following formula: 5-{2-[benzyl-(1-(4-hydroxyphenyl)-1-methylethyl)amino]-1-hydroxyethyl}benzene-1,3-diol hemifumarate is a useful intermediate in the synthesis of 5-[(1RS)-2-[(1RS)-2-(4-hydroxyphenyl)-1-methylethyl]-amino-1-hydroxyethyl]benzene-1,3-diol hydrobromide, which is used in the pharmaceutical field under the is known by the common name fenoterol hydrobromide.

The invention discloses a multifunctional hair cosmetic active raw material as well as a preparation method and application thereof. The active raw material is cystine dimaleate amide. The disulfide bond-containing molecule with a symmetric maleic acid structure is used as a sulfydryl reconnection reagent, so that a traditional oxidized sulfydryl reconnection reagent represented by hydrogen peroxide, bromate, iodate and the like is avoided, the content of the disulfide bond in hair is maintained while the hair is shaped, and particularly, after multiple times of perming, the hair is more comfortable to use. Compared with the prior art that a large amount of disulfide bonds are consumed after perming, the supplement and the shaping method are used for perming, so that the hair can be effectively and repeatedly permed according to the willingness of consumers, and the hair styles can be changed for multiple times.

The invention relates to a benzofuranone compound salt form and / or crystal form with a structure shown in a formula I as well as a preparation method and application of the benzofuranone compound salt form and / or crystal form. The invention provides a pharmaceutically acceptable salt of a benzofuranone compound as shown in a formula I. The pharmaceutically acceptable salt is one of hydrochloride, sulfate, phosphate, hydrobromide, maleate, tartrate, fumarate, citrate, p-toluenesulfonate, benzene sulfonate, mesylate, succinate, acetate and lactate. The salt formed by the compound shown in the formula I has a structure shown in a formula II, and n is selected from 1 or 2. The dynamic solubility is better, the stability is better, the absorption of the medicine, the stability of the medicine effect and the storage stability are facilitated, and the pharmaceutical prospect is better.

The invention belongs to the technical field of electrochemical wastewater treatment, and relates to a Sm diatomic electrocatalyst, a preparation method thereof and a method for treating oxysalt wastewater. The catalyst takes nitrogen-doped carbon as a carrier, and Sm-Sm diatomic sites are anchored in a carbon skeleton in an atomic scale manner through Sm-N coordination. The preparation method comprises the following steps: self-assembling Sm2O3 and a nitrogen-containing organic matter in a buffer solution to obtain a precursor, carrying out high-temperature carbonization in an inert atmosphere, and then carrying out acid etching to remove redundant oxides so as to obtain the high-density Sm diatomic site. The catalyst is loaded on a conductive substrate as a cathode, and negative potential is applied to an aqueous solution containing nitrate, bromate and / or perchlorate, so that the nitrate can be efficiently reduced into nitrogen, the bromate and the perchlorate are reduced into corresponding halide ions, and the catalyst is prepared. The catalyst has the advantages of hydrogen evolution reaction inhibition, high oxysalt removal rate, good target product selectivity, excellent stability and the like.

The invention relates to an industrial large-scale preparation method of 5-{2-[benzyl-(1-(4-hydroxyphenyl)-1-methylethyl) amino]-1-hydroxyethyl} benzene-1, 3-diol hemifumarate, the salt is composed of two molecules of 5-{2-[benzyl-(1-(4-hydroxyphenyl)-1-methylethyl) amino]-1-hydroxyethyl} benzene-1, 3-diol and one molecule of fumaric acid, and the two molecules of fumaric acid are different from each other. The compound has the following structural formulas (2) and (1). The 5-{2-[benzyl-(1-(4-hydroxyphenyl)-1-methylethyl) amino]-1-hydroxyethyl} benzene-1, 3-diol hemifumarate is a useful intermediate for synthesizing 5-[(1RS)-2-[(1RS)-2-(4-hydroxyphenyl)-1-methylethyl) amino]-1-hydroxyethyl] benzene-1, 3-diol hydrobromide, and the common name of fenoterol hydrobromide in the pharmaceutical field is known by people.

A composition for producing a biocide is provided. The composition comprises an ammonium salt, aqueous ammonia and sodium bicarbonate. The composition can be mixed with a hypochlorite oxidant to form a biocide. Previously known compositions included only an ammonium salt and optionally a base. The present composition is more economically favorable and has a more optimum pH relative to previously known compositions comprising an ammonium salt of a strong acid (hydrobromic, hydrochloric or sulfuric) or comprising ammonium carbamate and sodium hydroxide. Preparation of the biocide can be monitored with a control parameter. A new control parameter, the ratio ORP / pH, is introduced.

The application relates to a benzofuranone compound salt type and / or crystal type with a structure of formula I and a preparation method and application thereof. The application provides a pharmaceutically acceptable salt of a benzofuranone compound shown in formula I, wherein the pharmaceutically acceptable salt is one of hydrochloride, sulfate, phosphate, hydrobromide, maleate, tartrate, fumarate, citrate, p-toluenesulfonate, benzenesulfonate, methanesulfonate, succinate, acetate and lactate; the salt formed by the compound of formula I has a structure as shown in formula II, and n is selected from 1 or 2. The dynamic solubility is better, the stability is better, the drug absorption is facilitated, the drug efficacy is stable, the storage stability is good, and the application prospect is better.

The application belongs to the technical field of medicine synthesis process, and particularly relates to a preparation method of high-yield and high-purity buspirone hydrochloride. The application takes 8-(2-pyrimidyl)-8-azido-5-5-azospiro[4.5]decane hydrobromide (referred to as pyrimidine piperazine quaternary ammonium salt) and 3,3-tetramethylene glutarimide as raw materials, takes a mixed solvent of toluene, normal pentanol and / or normal hexanol as a solvent, does not need to add a phase transfer catalyst, and can generate buspirone in the presence of sodium carbonate. After acid adjustment and extraction, toluene is removed in the reverse phase, the water phase is adjusted to be alkaline, toluene is extracted, hydrogen chloride ethanol solution is added, and buspirone hydrochloride solid is directly precipitated. The preparation process has a good removal effect on impurities, the obtained buspirone hydrochloride has high purity, high process yield, good atomic economy and small three-waste output.

The invention provides a synthesis method of an ether compound, which is characterized in that a compound as shown in a formula (1) is used as a raw material and reacts in an organic solvent under the action of triethylamine hydrobromide (Et3N.HBr) to generate the ether compound as shown in the formula (1). According to the method provided by the invention, the Et3N.HBr which is low in price, easy to obtain and commercialized is adopted as the accelerant, and direct cross etherification between two alcohol molecules is realized under a mild reaction condition. According to the method, water is used as a unique by-product, so that toxic wastes and a large amount of inorganic salt wastes generated in the prior art are fundamentally avoided; meanwhile, the method has wide substrate applicability, can be efficiently compatible with various complex enol substrates including alkali-sensitive groups, acid-sensitive groups and secondary alcohol and tertiary alcohol structures, is simple and convenient to operate, does not need special equipment, and provides an efficient, economic, environment-friendly and easy-to-scale new way for synthesis of ether compounds.

This invention belongs to the field of water treatment technology, specifically an electrocatalytic filter membrane for removing bromate from water, its preparation method, apparatus, and application. S1: Carbon nanotube sponge is cut or selected as the substrate, with a size of 20×20×1mm. Simultaneously, aminophthalocyanine copper (purity ≥95%), binder (Nafion 117 solution, concentration 5wt%), and organic solvent N,N-dimethylformamide (DMF, purity ≥99.8%) are prepared. S2: The aminophthalocyanine copper powder and Nafion 117 solution are mixed in DMF solvent using an ultrasonic device at room temperature to form a uniform conductive ink. The electrocatalytic filter membrane prepared by this method has a copper loading of 1.0~3.0 wt%, and the bromate removal rate reaches over 96%. In application, the current density of the electrocatalytic filter membrane is 2~5 mA / cm². 2 Energy consumption is as low as 0.75 kWh / g BrO3. ‑ It operates stably for 120 hours and is suitable for water bodies with bromate concentrations of 0.2~5.0 mg / L. The direct reduction mechanism avoids the problem of organic matter quenching and solves the technical problem of "high energy consumption and poor stability of electrocatalytic materials in reducing bromate".

This invention relates to a mineral water processing method, particularly a method and system for ozone sterilization flow recirculation compensation in mineral water. The method and system include: obtaining a critical contact time; obtaining a target flow rate based on the critical contact time; obtaining the current influent flow rate into the ozone contact tank; comparing the current influent flow rate with the target flow rate, calculating a flow gap value, and determining a recirculation compensation flow rate based on the gap value; recirculating the treated water back to the influent end according to the recirculation compensation flow rate to maintain a constant overall flow rate in the contact tank at the target flow rate; and dynamically adjusting ozone dosing parameters. Through flow recirculation compensation, the overall flow rate in the contact tank is no longer constrained by the actual demand at the end of the production line. Under low-load conditions, the single residence time of the water can be artificially shortened by increasing the recirculation flow rate, solving the problem of bromate exceeding the standard caused by prolonged exposure of water to the ozone environment due to reduced flow rate.

The present invention provides a highly versatile copper sulfate plating solution for circuit formation, with which it is possible to perform both a smoothing plating treatment and a recess-filling plating treatment using the same plating solution. The present invention is a copper sulfate plating solution that is composed of copper sulfate, sulfuric acid, and chlorine, and contains a brightener, a polymer, a leveler A, and a leveler B as additives, said copper sulfate plating solution being characterized by the addition of a mixture of: the leveler A, which is an amine compound obtained by reacting epichlorohydrin with a nitrogen compound selected from among ammonia, alkyl amines, aliphatic amines, and aromatic amines; and the leveler B, which is a methyldiallylamine such as a N-methyldiallylamine hydrobromide / sulfur dioxide copolymer.

The present invention provides a highly versatile copper sulfate plating solution for circuit formation, with which it is possible to perform both a smoothing plating treatment and a recess-filling plating treatment using the same plating solution. The present invention is a copper sulfate plating solution that is composed of copper sulfate, sulfuric acid, and chlorine, and contains a brightener, a polymer, a leveler A, and a leveler B as additives, said copper sulfate plating solution being characterized by the addition of a mixture of: the leveler A, which is an amine compound obtained by reacting epichlorohydrin with a nitrogen compound selected from among ammonia, alkyl amines, aliphatic amines, and aromatic amines; and the leveler B, which is a methyldiallylamine such as a N-methyldiallylamine hydrobromide / sulfur dioxide copolymer.

The invention discloses an alkaline ionized water beverage, the bromate concentration in the alkaline ionized water beverage is less than or equal to 0.005 mg / L, the total amount of alkaline ions in the alkaline ionized water beverage is 15-40mg / L, and the alkaline ions comprise at least one of Mg < 2 + >, K < + > or Zn < 2 + >. The alkaline ionized water beverage has excellent product stability, contains active hydrogen, and has relatively high oxidation resistance.

The invention provides a quick bromate monitoring and early warning method and device, and the method comprises the steps: carrying out the correlation analysis of bromate concentration data and water quality parameter data, obtaining the correlation between the bromate concentration and water quality in a monitored water body, carrying out the self-adaptive compensation of the bromate concentration data based on the correlation, and carrying out the early warning of the bromate. The effective concentration of bromate in the monitored water body is obtained; performing time sequence prediction analysis on the effective concentration of the bromate based on the dynamic change data of the working condition operation parameters in the monitored water body to obtain the concentration evolution trend of the bromate in the monitored water body; performing dynamic threshold adjustment on a preset reference concentration early warning threshold of bromate in the monitored water body based on the dynamic change data to obtain a dynamic early warning threshold of the bromate concentration in the monitored water body; and performing monitoring and early warning on the bromate concentration in the monitored water body according to the dynamic early warning threshold and the concentration evolution trend. By adopting the scheme, the bromate content can be monitored and early warned on the basis of the dynamic fluctuation characteristics of the working condition and water quality basic parameters in the monitored water body.

The invention relates to a synthetic method of 2, 6-diethyl-4-methyl bromobenzene, which specifically comprises the following steps: reacting 2, 6-diethyl-4-methylaniline hydrobromide with phosphorus pentoxide and alkyl nitrite in the presence of an organic solvent. According to the method disclosed by the invention, water in the system can be fully removed, the generation of hydrolysis side reaction is avoided, the content of phenol impurities is reduced, meanwhile, the bromination reaction balance can be shifted rightwards, the bromination reaction yield is improved, and the production cost is greatly reduced. In addition, an alkali washing impurity removal step in an existing post-treatment procedure is avoided, impurities can be fully removed through simplified operation, the discharge amount of three wastes is reduced, and industrial production is facilitated.

The invention relates to the technical field of water treatment, and discloses a zero-bromate mineral water treatment system and process, which comprises the following steps: S1, raw water pretreatment; s2, manganese ion removal: the raw water enters an oxidation tower, sterilized compressed air is introduced, and divalent manganese ions are oxidized into manganese dioxide; then entering a manganese sand filter to adsorb and remove manganese dioxide and residual divalent manganese ions; s3, deeply filtering organic matters and particles, namely enabling the effluent to sequentially pass through an active carbon filter and a coarse filter, so that the turbidity of the effluent is 1t; 2 NTU; s4, ultrafiltration purification: enabling the water flow to pass through a hollow filter membrane ultrafiltration system to enable the turbidity of the effluent to be 1t; 0.1 NTU, SDIlt, 0.1 NTU; 2; carrying out ultrafiltration treatment to obtain strontium and metasilicic acid-containing double-index mineral water; s5, performing sterilization treatment: performing nanofiltration treatment on the ultrafiltration water, performing ultraviolet sterilization and disinfection, performing sterilization by using a bacteria blocking filter, and performing sterile filling to obtain the metasilicic acid-containing mineral water. According to the invention, ozone is replaced by ultraviolet sterilization and two-stage bacteria blocking filtration, zero ozone treatment is realized, and the water quality can meet the quality requirement of high-end mineral water.

The invention discloses an imidazolium quaternary ammonium salt antibacterial agent containing a sulfanilamide functional group and a preparation method of the imidazolium quaternary ammonium salt antibacterial agent. The preparation method comprises the following steps: generating an omega-bromo aryl sulfonamide compound from aryl sulfonyl chloride and 3-bromopropylamine hydrobromide under the action of an acid-binding agent; enabling the omega-bromo aryl sulfonamide compound and N-alkyl imidazole to generate imidazolium quaternary ammonium salt containing a sulfanilamide functional group; and cooling, washing with an organic solvent, and drying to obtain the imidazolium quaternary ammonium salt containing the sulfanilamide functional group. According to the invention, aryl sulfonyl chloride and 3-bromopropylamine hydrobromide are used as raw materials for the first time, and a target compound is simply and efficiently synthesized through sulfonylation-quaternization two-step reaction; the reaction conditions are mild, and the operation is simple, convenient and safe; the method is suitable for large-scale production, and a solid and reliable technical basis is provided for research, screening and application of novel efficient antibacterial agents.

The invention discloses a Fe-based S (IV) activation method for synchronously removing bromate and organic matters in a water body by regulating and controlling dissolved oxygen, the technology is based on a sulfite (S (IV)) and iron ion (Fe) system, the concentration of dissolved oxygen (DO) is accurately controlled, and a reaction path is intelligently switched: when DO is less than or equal to 7.0 mg / L, the system is preferentially subjected to an advanced reduction reaction to generate sulfite free radicals, and the sulfite free radicals are subjected to a reduction reaction; bromate is efficiently reduced into nontoxic and harmless Br <->; when DO < gt >; when the concentration is 8.0 mg / L, the system is converted into an advanced oxidation process, sulfate free radicals and hydroxyl free radicals are generated, and organic matters are efficiently degraded. The method realizes selective or synchronous removal of bromate and organic matters through a single system, has the advantages of high reaction rate (the removal rate constant of bromate reaches 2.1 min <-1 >), no need of additional energy, low cost, no secondary pollution and the like, can be flexibly embedded into an existing water treatment process, and provides an efficient solution for drinking water safety.