60 results about "Peroxy acid" patented technology

The invention discloses a high-barrier antibacterial packaging material, a preparation method thereof and a packaging bag, and belongs to the technical field of packaging, the packaging material comprises the following raw materials by weight: 75-85 parts of polylactic acid, 15-25 parts of poly (butylene succinate), 2-6 parts of epoxidized urushiol, and 1-3 parts of benzyl quaternary ammonium salt modified montmorillonite; the epoxidized urushiol is prepared by carrying out epoxidation reaction on urushiol and organic peroxy acid; the packaging material further comprises the following raw materials: 2-5 parts of sepiolite fiber loaded magnesium oxide; according to the invention, biodegradable polylactic acid and poly (butylene succinate) are taken as base materials, and epoxidized urushiol is taken as a reactive compatilizer, so that the compatibility between polylactic acid and poly (butylene succinate) is improved, and meanwhile, the binding property between a polymer matrix and benzyl quaternary ammonium salt modified montmorillonite and sepiolite loaded magnesium oxide is enhanced; the packaging material with good mechanical property, barrier property and antibacterial property is obtained.

The invention discloses a high-strength moisture-proof gypsum board and a preparation method thereof, and relates to the technical field of gypsum board preparation. The high-strength moisture-proof gypsum board is prepared by dipping the surface paper in the composite dipping liquid and then pouring the surface paper and the gypsum core with the waterproof agent, the composite dipping liquid comprises the methoxy vinyl ether copolymer and the epoxy polyoxymethylene dimethyl ether, and the methoxy vinyl ether copolymer is 2, 3, 5-trimethyl-1, 3-pentanediol monoisobutyrate. According to the present invention, epoxy polyoxymethylene dimethyl ether is prepared by reacting 2, 4-dimethoxymethoxyphenylacetic acid with 2-hydroxyethyl vinyl ether, and the epoxy polyoxymethylene dimethyl ether is prepared by terminating polyoxymethylene dimethyl ether with allyl and then reacting with phthalimide hexperoxy acid, such that the waterproofness and the mechanical property of the gypsum board are improved; the waterproof agent is prepared by reacting hydrogen-containing silicone oil and fluorine-containing hyperbranched amide polyurea urethane, so that the moisture resistance and bonding strength of the gypsum board surface paper are enhanced, and additional mechanical support is provided for the gypsum board.

A method for controlling microbial growth in a sugar processing system is disclosed, wherein the method comprises adding a peroxy acid into water of a flume system used for transporting a sugar-containing plant material from a delivery or storage location to a wash system. In one non-limiting example embodiment, the sugar-containing plant material comprises sugar beets, and the peroxy acid comprises peracetic acid.

The present invention addresses the problem of providing a method for producing a solid electrolyte-electrode assembly capable of reducing interface resistance by making it unlikely for a gap to exist at the interface between a solid electrolyte and an electrode.　This method for producing a solid electrolyte-electrode assembly according to the present invention involves incorporating a lithium-ion compound into an amorphous metal oxide-forming composition when forming a solid electrolyte, and comprises: a step for preparing an amorphous metal oxide-forming composition by reacting a metal compound containing a titanium atom and an acid compound selected from the group consisting of peroxo acids, and preparing a metal oxide precursor solution which has an acid as a ligand; and a solid electrolyte-electrode assembly-forming step for contacting mist or vapor comprising the amorphous metal oxide-forming composition to the surface of a substrate heated to 150-700°C, and forming a solid electrolyte-electrode assembly comprising the amorphous metal oxide on the surface of the substrate.

Embodiments of the present disclosure relate to a method of making a silanol-functional polyolefin, the method comprising combining starting materials comprising A) a silyl hydride-functionalized polyolefin, optionally B) a solvent, C) a peroxy acid, optionally D) a neutralizing agent, under thermal conditions for effecting synthesis of a silanol moiety, thereby forming a reaction mixture, the reaction mixture produces the silanol functional polyolefin having the silanol moiety under the thermal conditions.

The invention discloses an IC carrier plate nickel stripping agent and a preparation method and a nickel stripping method thereof, and relates to the technical field of semiconductor packaging. The IC carrier plate nickel stripping agent is prepared from the following components in mass concentration: 3.0 to 8.0 percent of main reactant, 1.0 to 5.0 percent of coordination agent, 1.0 to 5.0 percent of wetting agent, 1.0 to 5.0 percent of accelerating agent and 0.5 to 2.5 percent of stabilizing agent, the main reactant is one or more of phenethyl peroxy acid 1, 1-dimethyl ethyl ester, methyl peroxy acid 1, 1-dimethyl ethyl ester and perisononanoic acid-1, 1-dimethyl ethyl ester; the complexing agent is one or more of N, N-dimethylimidazole-1-sulfonamide, N-cyclohexyl p-toluene sulfonamide, and 2-acrylamido-2-methylpropanesulfonic acid. The invention further discloses a preparation method of the catalyst. The invention provides an IC (integrated circuit) carrier plate nickel stripping agent and a preparation method and a nickel stripping method thereof. The IC carrier plate nickel stripping agent has efficient nickel stripping performance and an effect of not corroding copper at normal temperature.

Provided is a method for efficiently separating and recovering, from plant-derived biomass, a biomass composition containing highly pure mono- and / or polycarboxylic acid that is highly useful industrially.　This method obtains a biomass composition containing a mono- and / or polycarboxylic acid that has a molecular weight of 200 or less, and a polycarboxylic acid that has a molecular weight cut-off using ultrafiltration of 3,000 or more, and having a combined neutral sugar component content and lignin content of 70 wt% or less, by performing step 1 and step 2-1, or step 1 and step 2-2. Step 1: In a reaction system, plant-derived biomass, a solvent containing water in at least a portion thereof, and peroxide and / or peroxy acid are combined and reacted. Step 2-1: Separate out the aqueous phase from the reaction solution after step 1. Step 2-2: Add water and / or a non-water soluble organic solvent to the reaction solution after step 1 to separate the liquid, and separate out the aqueous phase.

This invention discloses a soil remediation agent, its preparation method, and its application. The soil remediation agent comprises a humic acid-based remediation agent and an encapsulated microbial remediation agent; it contains an oyster shell pretreatment agent and a chitosan pretreatment agent; the oyster shell pretreatment agent comprises active calcium and zinc oxide; the zinc oxide coats at least a portion of the surface of the active calcium; the active calcium is formed by sequentially calcining and hydrating oyster shells; the chitosan pretreatment agent is formed by activating chitosan with inorganic peroxide. This invention utilizes the loose and porous framework structure of calcined oyster shells and modified chitosan to provide a porous matrix for humic acid and microorganisms, preparing a combined physicochemical adsorption and microbial adsorption degradation remediation agent. This not only efficiently solves the problem of heavy metal pollution in soil, but also provides a stable remediation agent structure that can be recycled after remediation, effectively removing heavy metals from the soil and preventing secondary pollution.

The application belongs to the technical field of chemical product production, and particularly relates to a catalyst composition and a method for preparing peroxy acid. The catalyst composition contains an acidic catalyst and a stabilizer, wherein the stabilizer is a nitrogen-containing alkaline compound with a lone pair of electrons on the N atom. The specific catalyst composition can be used to prepare peroxy acid, and the conversion rate of hydrogen peroxide is greater than 95%, the selectivity of the prepared peroxy acid is greater than 70%, and the final obtained peroxy acid product is used to prepare caprolactone, so that the conversion rate of cyclohexanone is greater than 95%, and the selectivity of the prepared caprolactone is greater than 95%.

The application belongs to the field of catalysts and preparation thereof, and particularly relates to a catalyst, a preparation method and a method for preparing peroxy acid. The catalyst comprises modified molecular sieves and heteropoly acid supported on the modified molecular sieves, wherein the surface of the modified molecular sieves is modified with alkyl and amino groups. When the catalyst is used to prepare peroxy acid, the conversion rate of organic acid can be improved, the equilibrium conversion rate is higher than 60%, the selectivity of the prepared peroxy acid is higher than 98%, and the catalyst can be recycled and reused, and is suitable for industrial production.

The invention belongs to the technical field of chemical production, and particularly relates to a process and a system for producing epsilon-caprolactone, 70% hydrogen peroxide is used as an oxidizing agent to oxidize succinic anhydride, reaction can be carried out at normal temperature, reaction conditions are mild, the conversion rate is high, water brought in by reactants is consumed, generated peroxy acid is peroxysuccinic acid, and the epsilon-caprolactone can be produced by using the process and the system. Compared with peracetic acid and peracetic acid used in a traditional process, the stability and safety of peracetic acid and peracetic acid are enhanced, meanwhile, peracetic acid is a solid in a reaction solution and is easy to separate out, dehydration can be well achieved, and in the reaction of cyclohexanone and percarboxylic acid, the yield is high. According to the method, water is introduced into the solution, so that the generation of epsilon-glycolic acid, epsilon-acyloxyhexanoic acid, adipic acid, polycaprolactone and other substances caused by hydrolysis, auto-polymerization or oligomerization of epsilon-caprolactone due to introduction of water is avoided, the yield of epsilon-caprolactone is reduced, meanwhile, the reaction product succinic acid is also a solid in the solution, separation can be realized through filtration, high energy consumption in the rectification separation process is avoided, and the method is suitable for industrial production. The separation and purification difficulty of epsilon-lactone is reduced.

The present application relates to the chemical technology field, disclose a kind of preparation method of anhydrous peroxy acid product and the preparation method of caprolactone.The preparation method of anhydrous peroxy acid product includes the following steps: (1) in the presence of homogeneous acidic catalyst, hydrogen peroxide is reacted with organic acid, then the reaction product is divided into water phase and peroxy acid phase;(2) the homogeneous acidic catalyst in the peroxy acid phase is removed.The preparation method of caprolactone includes: the anhydrous peroxy acid product is oxidized with cyclohexanone.The method can catalyze the synthesis of peroxy acid with homogeneous acidic catalyst, can keep high synthesis efficiency of peroxy acid, and by removing homogeneous acidic catalyst from peroxy acid product, the refined anhydrous oxygen acid product is used for oxidizing cyclohexanone to prepare caprolactone, which can improve the selectivity and yield of caprolactone.

The present application relates to the field of pharmaceutical chemical technology, and more particularly to a method for synthesizing and purifying 2,4-diamino-5,6-dichloropyrimidine, which comprises reacting 2,4-diamino-6-chloropyrimidine with a dilute hydrochloric acid solution in the presence of a peroxo acid to obtain 2,4-diamino-5,6-dichloropyrimidine. Compared with the traditional method, the method for synthesizing and purifying 2,4-diamino-5,6-dichloropyrimidine has the advantages of easy availability of raw materials, low cost, easy control of reaction, simple post-treatment, high yield, and suitability for industrial production.

The invention relates to the technical field of chemical engineering, and particularly discloses an anhydrous organic peroxy acid production system and method.The anhydrous organic peroxy acid production system comprises a peroxidation reaction distiller, a first oil-water separator, an azeotropic distillation tower and a second oil-water separation and light component removal tower, and moisture is brought out of a reaction system through two times of azeotropy and two times of oil-water separation; and the solvent and the entrainer are respectively recovered through the azeotropic distillation tower and the light component removal tower, and the recovered materials can be recycled. According to the present invention, with the method, the hydrogen peroxide conversion rate and the organic peroxy acid selectivity are high, the prepared anhydrous organic peroxy acid has characteristics of excellent quality and water content of less than 0.01%, and the process has advantages of short reaction time, high raw material utilization rate, high heat energy utilization rate and good economy.

The present disclosure features methods for producing small, halogenated organic compounds derived from an organic acid, such as a peroxy acid.

The present invention relates to chemical and biological warfare agent decontaminating compositions and methods for using the same to decontaminate animal skin and wounds thereon exposed to the agents. The compositions may comprise a peracid, a hydroperoxide, and a peroxyacid.

Methods for generating a sterilant vapor in a sub-atmospheric environment for use in sanitization and sterilization. The vapor is generated from a mixture containing a sterilant and a molecular mobility enhancer (MME). More specifically, the use of the MME enhances the vaporization and mobility of the sterilant, particularly hydrogen peroxide and / or a peroxy acid, to provide enhanced or improved sterilization. Also provided are solid-form sterilant comprising a sterilant and an MME. Further provides are various packaged forms of sterilant, particularly containing hydrogen peroxide and / or a peroxy acid for use in sanitation and sterilization methods herein.

Compositions and methods for increasing the sugar yield of harvested sugarcane are described. Antimicrobial compositions are applied to freshly cut sugarcane to increase sugar yield. Beyond theory, compositions containing peracids or fatty acids are considered effective in preventing microbial contamination between harvest and milling. These antimicrobial compositions inhibit bacterial metabolic activity that converts sucrose in sugarcane juice into dextran. Preventing dextran production improves sucrose yields and purity in the treated sugarcane.

Topical formulations comprising peroxyacids prepared in situ from trichloroacetic acid, dichloroacetic acid, monochloroacetic acid or acetic acid and hydrogen peroxide are useful for promoting hair growth and for preventing hair loss.

The invention discloses a low-corrosion and low-odor sterilization disinfectant and a sterilization and disinfection method thereof, and when the sterilization disinfectant is dissolved in water, organic peroxy acid embedded by micelle is formed. On one hand, the rate and the effectiveness of generating organic peroxy acid by the precursor under the system in the prior art are remarkably improved, so that the excellent characteristics that the precursor is rapidly and completely reacted and residues are not generated are realized; on the other hand, the peroxy organic acid is wrapped in the micelle structure, so that the stability is improved, the decomposition rate is greatly reduced, the micelle structure interacts with the characteristic difference of different material surfaces, peroxy acid can be selectively released by utilizing the stability change of the micelle structure, and finally, the release of peroxy acid is accurately controlled through the micelle structure; while efficient sterilization is realized, the irritation and corrosivity of organic peroxy acid are remarkably reduced, so that the overall performance is optimized.

The invention belongs to the technical field of high polymer materials, and particularly relates to a preparation method and application of a PEDOT / PSS polymer. According to the PEDOT / PSS polymer provided by the invention, EDOT is taken as an initial raw material, a peroxy acid solution or a heteropolyacid solid is taken as a catalyst, sodium polystyrenesulfonate is taken as a doping agent, a stearate surfactant is taken as a dispersing agent, dimethyl carbonate is taken as a reaction solvent, and chemical oxidative polymerization is carried out under a stirring condition to obtain the PEDOT / PSS polymer. The method provided by the invention has the advantages that the reaction is rapid, the reaction time is short, the temperature condition is easy to control, the post-treatment is simple, the polymer yield and the conductivity are high, and the like, and through detection, the conductivity of the obtained PEDOT / PSS polymer is up to 458 S.cm <-1 >.

The present application refers to an ultrasonic oxidative desulfurization method for gasoline or diesel, comprising: Step 1, mixing an oxidant solution with an organic acid catalyst solution to obtain a mixture solution, wherein the oxidant reacts with the organic acid catalyst to obtain a peroxy acid; Step 2, mixing the mixture solution with gasoline or diesel and heating to 50 to 70° C., and performing an ultrasonic oxidative reaction under ultrasonic waves at 15 to 25 kHz to obtain a pre-prepared oil; wherein a mass flow ratio of the oxidant solution, the organic acid catalyst solution and the gasoline or diesel is (0.03-0.08):(0.01-0.03):1; Step 3, performing a phase separation process to the pre-prepared oil; and Step 4, recycling the organic acid catalyst and performing a countercurrent extraction for the gasoline or diesel to obtain a desulfurized gasoline or diesel.

Embodiments of the present disclosure are directed towards a method of preparing a silanol-functional polyolefin that includes combining, under thermal conditions to effect synthesis of a silanol moiety, starting materials comprising A) a silyl hydride-functionalized polyolefin, optionally B) a solvent, C) a peroxy acid, optionally D) a neutralizing agent thereby forming a reaction mixture that under the thermal conditions produces the silanol-functional polyolefin having the silanol moiety.

The invention discloses a combined system overflow sewage disinfection device which comprises an inlet water regulation and storage area, a coagulation area, a sedimentation area and a contact disinfection area which are sequentially connected through pipelines, and a dosing area for supplying chemicals to each functional unit, the water inlet regulation and storage area receives and regulates the amount of overflow sewage; in the coagulation area, suspended matters, heavy metals and macromolecular organic matters in the sewage are promoted to form floc with a coagulant through a flocculation stirring device; in the settling zone, floc and sewage are separated by utilizing an inclined tube settling device; the dosing area is provided with a liquid storage tank, a dosing pump and a dosing pipe which are respectively used for adding a coagulant to the coagulation link and adding an organic peroxy acid disinfectant to the disinfection link, and is provided with a solar panel for supplying power to the flocculation stirring device, the dosing pump and the ultraviolet light unit in the contact disinfection area; in the contact disinfection area, the sewage is irradiated through an ultraviolet unit, organic peroxy acid is activated to generate active free radicals, and disease microorganisms are efficiently inactivated in cooperation with oxidation of the organic peroxy acid and ultraviolet irradiation. The device has the functions of regulation, storage and purification, is suitable for complex water quality, has few disinfection byproducts and low energy consumption, and can meet the requirements of urban combined system overflow pollution prevention and control.

To provide a method of manufacturing a solid electrolyte-electrode assembly capable of attaining reduction of interface resistance by making an interface gap hard to be generated between a solid electrolyte and an electrode.SOLUTION: A method of manufacturing a solid electrolyte-electrode assembly includes: a step of reacting a metal compound containing a titanium atom with an acid compound selected from a group consisting of peroxoacid, preparing a metal oxide precursor solution containing acid as a ligand, and preparing a composition for metal oxide amorphous substance formation; and a solid electrolyte-electrode assembly formation step of bringing mist or steam consisting of the composition for metal oxide amorphous substance formation into contact with a surface of a substrate, which is heated to 150°C to 700°C, and forming the solid electrolyte-electrode assembly consisting of a metal oxide amorphous substance on the surface of the substrate. When forming the solid electrolyte, a lithium ion compound is contained in the composition for metal oxide amorphous substance formation.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of organic synthesis, and particularly relates to a preparation method of 2-chloro-4-(methylsulfonyl) benzoic acid. The preparation method of the 2-chloro-4-(methylsulfonyl) benzoic acid comprises the following steps: uniformly mixing 3-chlorophenyl methyl sulfide, oxalyl chloride and a Friedel-Crafts reaction catalyst in dichloromethane under a temperature control condition, and carrying out a reaction to prepare the 2-chloro-4-methylthio benzoic acid, the method comprises the following steps: adding an organic peroxy acid or a metal peroxy acid complex into an organic solvent dissolved with 2-chloro-4-methylthio benzoic acid under a temperature control condition, and reacting to prepare 2-chloro-4-(methylsulfonyl) benzoic acid; or under the temperature control condition, hydrogen peroxide is added into the acidic organic solvent in which the 2-chloro-4-methylthio benzoic acid is dissolved for reaction, and the 2-chloro-4-(methylsulfonyl) benzoic acid is prepared. The preparation method has the advantages of easily available raw materials, simple operation, mild reaction, high yield and high product purity, and is suitable for large-scale production.

The invention belongs to the field of clean production of paper pulp bleaching in pulping and papermaking industries, and discloses an AOX reduction agent for a chlorine dioxide paper pulp bleaching section and application of the AOX reduction agent. The agent for AOX reduction in the chlorine dioxide paper pulp bleaching section comprises an agent A and an agent B. The agent A comprises at least one of micromolecular organic acid A1 and aminocarboxylic acid A2. And the agent B is peroxy acid salt. An agent A and an agent B are added at the same time in acidic and heated chlorine dioxide bleaching sections, carbon center free radicals with dehalogenation activity are generated in situ, the free radicals selectively break C-Cl bonds of organic halides through a single electron transfer mechanism, chlorine atoms are converted into chloride ions, and therefore in-situ removal of AOX is achieved. According to the AOX decrement agent and the application method thereof provided by the invention, the generation amount of AOX can be obviously reduced by 55-80%, and the whiteness and viscosity of paper are not sacrificed.

This invention discloses a method for separating the oxide active material and current collector of a lithium-ion battery cathode, and its application. The separation method includes the following steps: acid leaching of the cathode sheet to be treated; adding a free radical generator to oxidize the binder in the cathode sheet, thereby separating the oxide active material from the current collector; wherein the oxide active material contains cobalt, and the free radical generator includes peroxide salts. This invention eliminates the need for additional metal ions, enabling efficient separation of the battery active material from the current collector on the cathode sheet. It is applicable to a wide pH range, has a simple process, low energy consumption, and low emissions. Furthermore, the recovered active material and current collector are free of impurity ions and do not require pulverizing the electrode sheet or dissolving the aluminum foil; the electrode sheet can be directly used for separation treatment. The operation is simple, and the recovered active material and current collector can also be directly used in lithium-ion battery production, resulting in high economic benefits.

The application discloses an etching liquid and a preparation method and application thereof, and belongs to the technical field of etchants. According to mass percentages, the etching liquid comprises 2.00-15.00 wt% of a peroxy acid, 2.00-15.00 wt% of organic acid A and 2.00-25.00 wt% of organic acid B, and the balance is water; the organic acid A comprises at least one of formic acid, acetic acid, propionic acid, butyric acid, octanoic acid, adipic acid, oxalic acid, malonic acid and benzoic acid; and the organic acid B comprises at least one of methyl sulfonic acid, malic acid, citric acid, maleic acid and tartaric acid. Silver in a multilayer film formed by silver and an ITO film is etched by using the etching liquid, so that the problem of damage to a titanium-aluminum-titanium layer in a substrate caused by phosphoric acid and being not conducive to environmental protection is avoided, the ITO / Ag / ITO structure can be effectively removed, an excellent profile is formed, there is no silver and ITO residue, and no Ag resorption phenomenon occurs.

The invention discloses a method for decyanation of cyanidation tailings based on organic activated peroxide.The method comprises the following steps that water is added into the cyanidation tailings to obtain ore pulp, the pH of the ore pulp is adjusted to be alkaline with sodium hydroxide, and cyanidation tailings adjusted ore pulp is obtained; an oxidizing agent and an organic activating agent are added into the cyanidation tailing adjusting ore pulp, a decyanation reaction is carried out, and a reaction material is obtained; and carrying out filter pressing and washing on the reaction materials to obtain filter residues and filtrate. According to the method, different types of organic activators are introduced and can react with hydrogen peroxide to generate different types of peroxy acids, the oxidation potential of the peroxy acids is higher than that of the hydrogen peroxide, so that the peroxy acids become a cyanide breaking agent with higher oxidation capacity than that of the hydrogen peroxide, and the problems that traditional hydrogen peroxide is not thorough in decyanation, low in decyanation efficiency and the like are solved. Meanwhile, the bleaching activation energy of peroxy acid is lower than that of hydrogen peroxide, and the bleaching temperature can be reduced to achieve the purpose of low-temperature cyanogen breaking.