85 results about "Perchlorate" patented technology

The invention discloses a nitrogen-rich energetic ionic salt compound based on bis-(5-aminotetrazole) boron. The nitrogen-rich energetic ionic salt compound comprises bis-(5-aminotetrazole) boric acid guanidine salt (I), bis-(5-aminotetrazole) boric acid aminoguanidine salt (II) and bis-(5-aminotetrazole) borane perchlorate (III), the structural formulas of the compounds are shown as (I)-(III). The compound can be used for mixed explosives and fuel-rich propellants.

The invention belongs to the technical field of adsorption materials, and particularly relates to a hydroxyl-free lead dioxide-based nitric oxide absorbent and a preparation method thereof. The method comprises the following steps: preparing a mixed solution of perchloric acid and lead perchlorate, standing to form a saturated solution, and performing electrodeposition by using the saturated solution as an electrolyte to obtain a lead dioxide deposition layer; and cleaning, drying and crushing the sediments, drying the sediments in an air dry oven with an air exchange function, and calcining the sediments at high temperature to form a target product. The obtained absorbent has the characteristics of hydroxyl-free structure, nanoscale particle size, high porosity, excellent adsorption performance and the like. Test results show that the absorbent has good selective adsorption capacity on NO2, and the adsorption efficiency can reach 85% or above. The material is suitable for nitrogen oxide interference absorption in the determination process of the hydrocarbon content in coal, and has important application value.

A method of treating a subterranean formation by contacting the formation with the following (a) ammonium bicarbonate; (b) an oxidizing agent selected from a perchlorate or a nitrite or combinations thereof; and (c) an acid (AA).

The utility model discloses integrated perchlorate treatment equipment which comprises a water storage tank connected with a sewage discharge pipe, a lifting pump is arranged in the water storage tank, and an integral box shell is arranged at the output end of the lifting pump. The middle water tank, the quartz sand filter, the activated carbon filter, the ion exchanger, the pipeline mixer, the precision filter and the two-stage reverse osmosis structure are arranged in the integral box shell and are connected with the output end of the air flotation machine; the bottom end of the air flotation machine is connected with a sludge box through a guide pipe; a plate filter press is arranged at the output end of the sludge box; a plurality of medicament storage tanks are further arranged and are respectively connected with the reservoir, the air flotation machine, the ion exchanger and the pipeline mixer through output pipes. The device disclosed by the utility model is reasonable in structural arrangement, can avoid external interference, is beneficial to improving the overall safety performance, prolongs the service life of the overall structure, does not cause material waste, improves the sewage treatment efficiency, has few byproducts and reduces the treatment cost.

The invention belongs to the technical field of medicine synthesis, and particularly relates to a preparation method of a tofacitinib key intermediate. According to the present invention, the diphenyl glycolic acid tropine ester is adopted as the starting material, and the diphenyl glycolic acid tropine ester is obtained under the action of the photosensitizer and the perchlorate in cooperation with the irradiation of the high-pressure mercury lamp, such that the technology has characteristics of simple preparation, no use of the expensive catalyst, safety, environmental protection, and avoiding of the risk of the standard exceeding of the heavy metal content, and is suitable for the large-scale production.

A system, comprising: a chlorine source in form of an electrolysis unit to generate an insitu generated active chlorine; wherein a concentration of perchlorate is not more than half of a concentration of chlorate; and pH of a fluid containing in-situ generated active chlorine is more than 7.4; a buffer tank to store a concentrate of in-situ generated active chlorine as a free available chlorine (FAC); a fluid distribution system to supply FAC in form of an in-use fluid to the cabinet; wherein the system is configured to clean and disinfect an article with the fluid while complying with national and international standards for food safety, operator's safety and regulatory requirements regarding the use of biocides.

The application provides a modified activated carbon for removing perchlorate in water for sheep farms and a preparation method thereof, relates to the field of water treatment, and the method carries out reaction on activated carbon in a citric acid aqueous solution, uniformly loads a carboxyl layer on the surface of the activated carbon, and obtains preliminarily modified activated carbon; carries out reaction on the preliminarily modified activated carbon in an alkaline polydimethyl diallyl ammonium chloride aqueous solution, and strong cation quaternary ammonium salt is adsorbed on the surface of the carboxyl layer through electrostatic action, thereby obtaining secondarily modified activated carbon; and carries out reaction on the secondarily modified activated carbon in a triethylenetetramine aqueous solution, so that triethylenetetramine molecules are further combined to the strong cation quaternary ammonium salt through electrostatic adsorption, thereby obtaining the modified activated carbon for removing perchlorate in water for sheep farms, the adsorption capacity of the activated carbon for solutes with negative charges is significantly enhanced, and the treatment efficiency of the overall farm environment on perchlorate is improved.

The invention relates to a qualitative and quantitative method for liensinine perchlorate. The qualitative method comprises the following steps: weighing 1mg of liensinine perchlorate and 1mg of liensinine, uniformly grinding and tabletting the liensinine perchlorate and the liensinine with 100mg of potassium bromide respectively, acquiring an infrared spectrum of 4000-400cm <-1 > by adopting an infrared spectrometer, and comparing spectrograms to find that the peak shapes of the liensinine perchlorate and the liensinine are similar, the peak shapes of the liensinine perchlorate and the liensinine perchlorate are common characteristic peaks and the peak shapes of the liensinine perchlorate are unique characteristic peaks of the liensinine perchlorate and the liensinine are common characteristic peaks and the peak shapes of the The quantitative method comprises the following steps: weighing a series of liensinine perchlorate reference substances with different masses, uniformly grinding and tabletting the liensinine perchlorate reference substances and 100mg of potassium bromide respectively, collecting an infrared spectrum, carrying out integration on a 625cm <-1 > characteristic peak to obtain a peak area, and drawing a standard curve by taking the peak area as a vertical coordinate and taking the sampling mass of the reference substances as a horizontal coordinate; the method comprises the following steps: weighing a sample to be detected, collecting an infrared spectrum, integrating a 625cm <-1 > characteristic peak to obtain a peak area, substituting the peak area into the standard curve equation, calculating the mass of the liensinine perchlorate in the sample, and substituting the mass into the content calculation formula to obtain the content of the liensinine perchlorate in the sample. The method is good in precision, repeatability and stability, wide in linear range, high in linear correlation coefficient and high in recovery rate, the problem that liensinine interference cannot be avoided in an existing content determination method is effectively solved, whether liensinine perchlorate is generated or not can be qualitatively judged, and the quantity of liensinine perchlorate generated can be quantitatively detected; and a feasible new method is provided for production process optimization and quality evaluation of liensinine perchlorate.

Aerobic microbial processes comprise culturing microbes comprising a (per)chlorate respiration pathway in a bioreactor in a bioprocess employing microbial respiration of chloroxyanions as a source of oxygen for the bioprocess, in the absence of external addition of molecular oxygen.

The invention belongs to the technical field of energetic materials, and discloses a novel diamine ternary self-assembly energetic material and a preparation method thereof. The chemical structural unit of the energetic material is composed of a double-protonated ethylenediamine cation, a double-protonated propane diamine cation and four perchlorate anions, the crystal of the energetic material belongs to a monoclinic system, and the space group of the energetic material is P21 / c. The material shows excellent comprehensive performance, including positive oxygen balance, positive enthalpy of formation, high theoretical specific impulse and good thermal stability and moisture absorption resistance. The preparation method comprises the following steps: dissolving ethylenediamine and propane diamine in water to form a mixed solution, then adding a perchloric acid aqueous solution, magnetically stirring to separate out a white solid, and filtering to obtain a target product. The method takes water as a solvent, is simple in process, environment-friendly, low in cost and suitable for large-scale production, and provides a novel component which is high in performance and green in preparation for the field of energetic materials.

The invention relates to an electrolyte of a low-temperature water-based zinc ion battery, which is characterized in that an additive is formed by compounding sodium dodecyl benzene sulfonate, carboxymethyl cellulose and aspartame, and the ionic conductivity of the electrolyte at-30 DEG C is not less than 5 mS / cm; the zinc salt is one or more of zinc chloride, zinc nitrate, zinc perchlorate, zinc sulfate, zinc trifluoromethanesulfonate, zinc acetate, zinc citrate, zinc gluconate and zinc oxalate; the additives are sodium dodecyl benzene sulfonate, carboxymethyl cellulose and aspartame; the problems that an existing aqueous battery electrolyte additive is high in cost, large in environmental pollution and the like are solved. By optimizing the electrolyte formula, the working performance of the aqueous zinc ion battery under the low-temperature condition is improved.

The application discloses a preparation method of chitosan / sodium alginate composite aerogel, which comprises the following steps: adding chitosan into an ice acetic acid solution to form a chitosan solution, adding sodium alginate into a NaOH solution to form a sodium alginate solution, dropping the chitosan solution into the sodium alginate solution, and stirring to form gel small balls; adding the gel small balls into a glutaraldehyde solution to obtain gel bead balls; and performing alkali washing on the gel bead balls to obtain chitosan / sodium alginate composite aerogel with holes. The composite aerogel prepared by the preparation method can purify low-concentration perchlorate in water bodies at a high adsorption rate. The application further discloses the chitosan / sodium alginate composite aerogel and application thereof in removing perchlorate.

The application discloses a method for pulse electrolysis of lignin, and the method comprises the following steps: performing pulse electrolysis reaction on a lignin dimer model compound in a three-electrode system acetonitrile medium system to obtain a small molecule aromatic monomer; the pulse electrolysis condition is that the pulse electrolysis is performed at a pulse potential of ±1.4V-±2.4V for 4-8h, the cycle is 5-20s, the duty cycle is 0.25-0.75, and the electrolyte is tetraethylammonium perchlorate. The pulse electrochemical method can electro-oxidize and depolymerize the C-O bond of the model compound at a lower potential, the problem of overoxidation at a high potential is relieved, and the product yield and product selectivity of the model compound are improved. The method has wide substrate applicability and can be effectively applied to the breaking of various C-O bonds.

The invention discloses a ternary eutectic electrolyte for a zinc ion battery as well as a preparation method and application of the ternary eutectic electrolyte, and belongs to the technical field of zinc ion batteries. The electrolyte is composed of zinc perchlorate hydrate, acetamide and dimethyl sulfoxide according to a specific molar ratio, and the preparation method comprises the steps that the zinc perchlorate hydrate and the acetamide are mixed and stirred to form transparent liquid, then the dimethyl sulfoxide is added, stirring continues to be conducted, and the uniform and transparent eutectic electrolyte is formed. Through the ternary eutectic system design, the zinc ion coordination environment is effectively regulated and controlled, the obtained electrolyte is low in viscosity and high in ionic conductivity, when the electrolyte is applied to a zinc ion battery, zinc dendrite growth and side reaction can be remarkably inhibited, the cycle life of a Zn | | Zn symmetric battery under 1 mA cm <-2 > exceeds 3800 hours, the capacity retention rate of a Zn | | PANI total battery after 500 cycles under 0.5 A g <-1 > reaches 99.8%, and the capacity retention rate of the Zn | | PANI total battery under 0.5 A g <-1 > reaches 99.8%. And the cycle stability and the service life of the battery are greatly improved.

The invention discloses a method for researching a mechanism for inhibiting chlorine-containing by-products in an electrochemical chlorination process by peroxymonosulfate, which is used for researching the mechanism for inhibiting EO / Cl-chlorine-containing by-products by PMS by adopting tetracycline TC degradation and chlorine by-product detection experiments, experiments for converting active chlorine into < 1 > O < 2 > and resisting Cl <->, calculation and cost analysis means. The method comprises the following steps: clearly changing the degradation performance of TC, the concentration of chlorine by-products and the toxicity of PMS; the behavior of PMS for converting EO / Cl-active chlorine into < 1 > O2 is disclosed; the process of forming < 1 > O2 through the reaction of Cl. / Cl2. <-> / HOCl and PMS is explored; the PMS-mediated < 1 > O2 is explained to resist the chlorine-containing byproduct generation process; the system popularization and application feasibility is explored. According to the method, degradation and chlorine by-product testing, < 1 > O2 conversion and Cl <-> resistance experiments, calculation and cost analysis are combined, a chlorine-containing by-product inhibition mechanism is comprehensively disclosed, and a method and theoretical guidance are provided for practical application of an electro-chlorination peroxymonosulfate technology.

The invention relates to the technical field of wastewater treatment, and particularly discloses a copper-based MOF material for adsorbing perchlorate in wastewater and a preparation method of the copper-based MOF material for adsorbing the perchlorate in the wastewater aiming at the problem of poor selective adsorbability when an existing cationic metal-based MOF material is used for adsorbing and removing impurities from the perchlorate in the wastewater. The copper-based MOF material comprises a soft acid metal center, a non-polar polydentate nitrogen ligand and R-sulfonic acid counter ions, and the soft acid metal center and the non-polar polydentate nitrogen ligand form a negatively charged hydrophobic porous skeleton. A hydrophobic porous skeleton is constructed through a soft acid metal center and a non-polar multidentate nitrogen ligand, specific capture of ClO4 <-> with a large ionic radius and strong hydrophobicity is realized, the synthesis process is simple, the chemical structure is stable, the adsorption capacity is large, environment friendliness is realized, and the adsorbent has a remarkable adsorption effect when being used for adsorbing and removing ClO4 <-> and oxygen-containing anions with similar structures in water.

The application provides a metal fuel propellant and a preparation method thereof, and belongs to the technical field of solid propellants. 3 Compared with traditional aluminum-based propellants, the zirconium-based propellant has a greater density, and the increase of the density can not only increase the volume specific impulse of the propellant, but also increase the speed increment of a missile, so that the zirconium-based propellant has more excellent energy characteristics and can be applied to small volume engines; the application of zirconium hydride as a fuel additive increases the hydrogen content in the fuel, reduces the flame temperature of the propellant and improves the specific impulse of the propellant; the application of zirconium hydride as a fuel additive has good resistance to direct oxidation of perchlorate and can improve the energy characteristics and combustion performance of the zirconium-based propellant; and the application of aluminum powder as a fuel additive has high combustion heat value and good oxidation performance and can promote the combustion reaction of the zirconium powder.

The invention discloses a method for ratio type colorimetric detection of perchlorate. The method comprises the following steps: performing specific surface modification on gold nanoparticles, constructing a methylene blue functionalized gold nanoparticle (MB (at) AuNPs) colorimetric probe, inducing a particle aggregation effect by utilizing specific interaction between perchlorate and MB (at) AuNPs, triggering red shift of a localized surface plasma resonance absorption peak of the probe, and detecting the concentration of the MB (at) AuNPs. And a 523 nm (dispersed state characteristic peak) and 660 nm (aggregation state characteristic peak) dual-wavelength absorption signal is formed. Ratio-type quantitative analysis is realized by calculating the ratio (A660 / A523) of the absorbance of the two wavelengths, and the defect that single-signal detection is easily influenced by environmental fluctuation and system condition change is effectively avoided. Based on the response characteristics, a dual quantitative relation between the ratio of the concentration of the perchlorate to the absorbance and the ratio of the color intensity of an image collected by the smart phone is further established, and an ultraviolet-visible spectrophotometry-smart phone image analysis dual-mode detection system is constructed. Wherein the detection limit of the spectrum detection mode is 2.77 [mu] M, and the detection limit of the smart phone auxiliary detection mode is 5.63 [mu] M. The method is simple and convenient to operate, does not need a large-scale analytical instrument or complex sample pretreatment, has the advantages of good sensitivity, stability and visual discrimination, can quickly realize on-site screening and accurate quantification of perchlorate in water and food samples, and is high in practicability and wide in popularization prospect.

The invention discloses a perchlorate wastewater treatment device which comprises an automatic lifting assembly, an alarm assembly, a top sealing cover, an auxiliary plate and a wastewater treatment box. The invention belongs to the technical field of wastewater treatment, and provides an automatic lifting assembly and an alarm assembly in order to solve the problem that the water level alarm of an existing perchlorate wastewater treatment device is not obvious enough. When the water level of waste water exceeds the height of the particle storage shell, an L-shaped bent rod automatically drives an auxiliary plate to be lifted, an alarm assembly is synchronously lifted, the alarm assembly penetrates through a moving through groove, and a worker is warned, so that the striking degree of warning the operator is achieved, the warning effectiveness and the equipment safety are improved, and accidents are reduced.

The application belongs to the field of liquid flow batteries, and particularly relates to a zinc-bromine liquid flow battery electrolyte for inhibiting zinc dendrites and a preparation method and application thereof; the zinc-bromine liquid flow battery electrolyte for inhibiting zinc dendrites comprises the following steps: mixing zinc bromide, zinc perchlorate, 4-methyl-4-ethyl bromide morpholine and ammonium isethionate, dissolving them in water to obtain solution A; dissolving Pb(NO3)2 and BiCl3 in concentrated hydrochloric acid respectively, ultrasonic oscillation dissolving, diluting with water, and mixing to obtain solution B; mixing and stirring solution A and solution B to obtain the zinc-bromine liquid flow battery electrolyte for inhibiting zinc dendrites. The application can effectively inhibit the generation of zinc dendrites in the zinc-bromine liquid flow battery, and the zinc dendrite in-situ growth observation pool prepared by the application can directly observe the in-situ growth process of zinc deposition, without disassembling the battery, so that the experimental time is greatly saved, the experimental efficiency is improved, and the experimental cost is reduced.

The invention relates to the field of environmental protection, in particular to perchlorate wastewater treatment of perchlorate chemical enterprises and fireworks and crackers enterprises. The mode of the constructed wetland, the aquatic plants, the constant temperature mode and the sunlight shed is adopted, solar radiant heat is fully utilized, rapid growth of the aquatic plants is promoted, meanwhile, high-yield aquatic plants enter the biogas digester, biogas combustion heat is assisted in low-temperature seasons from late autumn to early spring, rapid growth of the aquatic plants is promoted, and the yield of the aquatic plants is increased. And evaporation of the perchlorate aqueous solution is accelerated, a green, efficient, low-energy-consumption and emission-free closed loop is formed, and the optimal perchlorate-free emission effect is ensured.

The invention relates to the fields of chemical industry, pyrotechnic compositions, fireworks and crackers and the like, and relates to preparation of barium fumarate serving as a novel compound material with coloring agent and reducing agent effects, and preparation and application of the material in the fields of pyrotechnic compositions, fireworks and crackers and the like. The preparation method comprises the following steps: mixing fumaric acid and barium carbonate or barium oxide or barium hydroxide, and heating an aqueous solution to prepare barium fumarate; furthermore, the barium fumarate can be fully mixed with selected other substances to prepare a green pyrotechnic composition, and the green pyrotechnic composition is applied to fireworks and crackers and other fields; in addition, the barium fumarate is mixed with other selected substances, a small amount of perchlorate can be selectively added and fully mixed to prepare non-pyrotechnic composition or pyrotechnic composition substances in various geometrical shapes, and then the substances are placed in handheld, ground and air (including aircrafts) devices or equipment to be used for preparing the non-pyrotechnic composition or pyrotechnic composition. The non-pyrotechnic composition and the pyrotechnic composition substance can be ignited according to the electronic heating principle, and green light is emitted through combustion for color development.

The invention relates to the technical field of perchlorate recovery, in particular to a process for recovering perchlorate from perchlorate packaging bags, which comprises the following steps: S1, sequentially conveying the packaging bags into a recovery chamber for primary recovery and secondary recovery; s2, liquid I generated by primary recovery is guided into a distillation tower for distillation and crystallization, and liquid II generated by secondary recovery is guided into a primary recovery pool to be used as water for primary recovery and recycled; s3, purified water is introduced into a distillation tower to serve as condensate water, and the purified water absorbing heat serves as a water source for secondary recovery; s4, purified water obtained after distillation is collected and used as water for condensation of a distillation tower, and crystals obtained after distillation of the distillation tower are collected; the step S1 comprises the steps that S101, bag opening is conducted, specifically, a packaging bag is turned over, so that the inner side of the packaging bag is completely exposed; and S102, recycling is conducted, specifically, the turned packaging bag is washed and recycled. The system improves energy utilization and is more environment-friendly.

The invention provides an electric control solid propellant, a preparation method and an electric control solid fuel gas generator. The propellant is prepared from hydroxylamine nitrate, hydroxylamine perchlorate, sodium nitrate, polyvinyl alcohol boric acid and ammonium niobate oxalate hydrate according to a designed mass ratio. The electronic control solid fuel gas generator designed by the invention comprises a fuel gas generator shell, a negative electrode conductive device, a front end socket, a front end socket insulating sheet, a spring, a negative electrode insulating sheet, a negative electrode, a positive electrode, a positive electrode conductive device, an insulating sleeve, a spray pipe seat, a spray pipe and a prepared electronic control solid propellant grain, and the negative electrode and the positive electrode are arranged at the two ends of the propellant grain; a plurality of gas discharge holes are arrayed on the positive electrode, and the pressure regulating through holes which are not in contact with a propellant combustion end face are formed, so that the pressure at two ends of the grain can be balanced, the grain can be effectively pushed by the elastic force of the spring, the grain is in close contact with the electrode, and the working stability of the generator is ensured.

The application discloses a kind of efficient targeted adsorbent for treating perchlorate wastewater, including the matrix of crustacean biomass with porous structure, the surface of the matrix of crustacean biomass and the pore structure are loaded with modified material, the modified material is mainly prepared by mixing reaction of aluminum source, iron source, solid base, excitation agent.The application also provides a kind of preparation method of the above-mentioned efficient targeted adsorbent and its application.The efficient targeted adsorbent for treating perchlorate wastewater and its preparation method of the application, by modifying adsorption material, the surface and internal void surface characteristics are optimized, so that the whole adsorption material is positively charged, so that it becomes the carrier of adsorbing perchlorate in water body, and the adsorption capacity and adsorption selectivity are improved.

The invention relates to the technical field of energetic materials, in particular to application of electrochemistry in self-coupling of pyrimidine compounds under the catalyst-free condition, a pyrimidine self-coupling compound, a perchlorate derivative of the pyrimidine self-coupling compound and a preparation method and application of the pyrimidine self-coupling compound and the perchlorate derivative of the pyrimidine self-coupling compound. The invention provides an application of electrochemistry in self-coupling of pyrimidine compounds under a catalyst-free condition. The C-C self-coupling reaction of the pyrimidine compound is electrochemically driven under the condition of no catalyst, the product selectivity is high, the direct C-C self-coupling reaction of the pyrimidine ring in the pyrimidine compound is electrochemically driven under the condition of no catalyst, the bicyclic pyrimidyl energetic skeleton is constructed, and the product selectivity is high. Transition metal catalysis is not needed, reaction conditions are simple, product selectivity is high, side reactions are few, and the application range of electrochemistry in explosive synthesis is widened.

This invention discloses a gold nanowire catalyst, its preparation method, and its applications, belonging to the field of nanomaterials technology. The method involves adding a gold perchlorate solution to a hexadecyltrimethylammonium bromide solution, mixing them at a specific volume ratio, and then adding a freshly prepared ascorbic acid solution to the mixture. The mixture is then shaken to obtain extremely fine, elongated gold nanowires with an aspect ratio of (100-200):1. This invention provides a novel preparation method for addressing the morphology issues in the synthesis of gold nanowires, and the prepared gold nanowires can be applied in the field of electrocatalytic CO2 reduction, significantly improving the selectivity for CO2 reduction to CO.

The invention belongs to the technical field of organic synthesis, and particularly discloses a preparation method of aromatic aldehyde and derivatives thereof. The preparation method comprises the following steps: mixing a compound 1, a photocatalyst and a solvent, and reacting under oxidizing atmosphere and illumination conditions to obtain aromatic aldehyde and derivatives thereof, or; r is selected from hydrogen, halogen, substituted or unsubstituted C1-10 alkyl groups, substituted or unsubstituted aryl groups, substituted or unsubstituted C1-10 alkoxy groups, substituted or unsubstituted amino groups, carboxyl groups, ester groups, acyl groups, cyano groups, nitryl groups, hydroxyl groups or azido groups; the photocatalyst is prepared from 2, 3, 5, 6-tetra (9H-carbazole-9-yl) terephthalonitrile, 10-methyl-9-phenylacridine-10-onium perchlorate, an iridium photocatalyst or a ruthenium photocatalyst, and can be used for preparing the photocatalyst. The method is simple in catalytic system, mild in condition, high in product yield and good in selectivity, and has potential industrial application value.

This invention discloses a specialized and highly efficient agent for treating perchlorate wastewater using a biological reduction method. This agent comprises the following components in parts by weight: 60-70 parts sodium acetate, 30-35 parts waste sugar residue, and 0.8-1.2 parts inorganic phosphorus. By using sodium acetate and waste sugar residue as the main carbon sources, supplemented by inorganic phosphorus, a synergistic nutrient supply system is formed, creating a precisely proportioned composite carbon source agent that efficiently meets the nutritional requirements for denitrification and biological phosphorus removal in perchlorate wastewater, exhibiting good treatment effects.