130 results about "Potassium peroxymonosulfate" patented technology

The invention provides a low-corrosion potassium peroxymonosulfate disinfector which consists of the ingredients by mass percent: 30-60% of an oxidizing agent, 5-30% of an activating agent, 1-10% of a synergist, 1-10% of a buffering agent, 0.2-2% of a surface active agent, 1-10% of a corrosion inhibitor, 0.1-5% of a chelating agent and 0.001-0.01% of an indicator. The disinfector has high killing capability to microorganisms such as bacteria, fungi and viruses, does no harm to a human body, and cannot cause a potential health risk or harm to an environment; the corrosion inhibitor is added to the disinfector, so that the corrosion of the potassium monopersulfate disinfector to various metals can be reduced effectively; in addition, the indicator is added, so that whether the content of the disinfector can reach a lowest use dosage can be judged visually according to change of a color of the disinfector; and the detection cost during use of the disinfector can be lowered greatly.

An etchant for removing an indium oxide layer includes sulfuric acid as a main oxidizer, an auxiliary oxidizer such as H₃PO₄, HNO₃, CH₃COOH, HClO₄, H₂O₂, and a Compound A that is obtained by mixing potassium peroxymonosulfate (2KHSO₅), potassium bisulfate (KHSO₄), and potassium sulfate (K₂SO₄) together in the ratio of 5:3:2, an etching inhibitor comprising an ammonium-based material, and water. The etchant may remove desired portions of the indium oxide layer without damage to a photoresist pattern or layers underlying the indium oxide layer.

The invention discloses disinfection powder for disinfecting hospital and aquaculture wastewater. The powder is prepared from the following components in percentage by mass: 20%-30% of potassium monopersulfate, 15%-20% of sodium dichloro isocyanurate, 25%-45% of dodecyl dimethyl benzyl ammonium chloride, 10%-15% of protochloride and 2%-5% of sodium hexametaphosphate. The compound disinfection powder has the advantages that (1) the compound disinfection powder is an oxidizing and non-oxidizing fungicide complex, and is good in sterilization effect; (2) the compound disinfection powder contains a dispersant component, is capable of stripping biological slime and is free of a dead angle in sterilization and disinfection; (3) the compound disinfection powder is low in consumption and does not generate secondary pollution; and (4) residual chlorine in discharged water does not exceed the standard.

The invention discloses a paper starch adhesive and a preparation method thereof. The paper starch adhesive comprises the following components in part by weight: 100 parts of starch, 300 to 600 parts of water, 0.1 to 0.3 part of potassium hydrogen peroxymonosulfate, 5 to 10 parts of caustic soda, 1 to 5 parts of epoxy chloropropane, 0.5 to 1.5 parts of boric acid, 1 to 3 parts of sodium sulfite, 4 to 8 parts of light calcium carbonate and 2.5 to 5 parts of bridging agent. The preparation method comprises the following steps of: adding water into a reaction kettle, heating the water to 38 DEG C, adding the starch into the water, stirring the solution, adding potassium hydrogen peroxymonosulfate solution into the reaction kettle, and reacting the mixed solution for 20 minutes with stirring; diluting the caustic soda, then slowly adding the caustic soda into the reaction kettle twice, stirring the solution for about 20 minutes to form milk white or light yellow transparent colloid, then adding the boric acid, the bridging agent and the light calcium carbonate into the colloid, and stirring the mixture uniformly; and adding the epoxy chloropropane, sodium aliphatate and the sodium sulfite into the reaction kettle with stirring, and stirring the mixture uniformly to obtain the paper starch adhesive. The adhesive has the characteristics of stable viscosity, good adhesiveness, low comprehensive cost, good permeability and the like.

The invention discloses a cellulose-based composite catalyst for catalyzing persulfate to degrade dye methyl orange and a preparation method of the cellulose-based composite catalyst. The preparation method comprises the following steps: firstly, cobalt (II,III) oxide is supported on graphite oxide, then the cellulose-based composite catalyst is prepared from the graphite oxide supporting the cobalt (II,III) oxide and oxidized cellulose by compositing, finally, PMS (potassium peroxymonosulfate) is added to water containing the methyl orange, pH is regulated, and the cellulose-based composite catalyst is added for degradation. The catalyst can be used at room temperature and has wide application range, a heterogeneous cobalt (II,III) oxide/graphite oxide/oxidized cellulose/PMS catalytic oxidation degradation system has the advantages of high catalytic efficiency, high oxidizing capacity, good reusability and the like, especially the mechanical strength of the catalyst is high, and the catalyst can be settled to wastewater bottom after reaction, is convenient to recover and can be applied to the field of sewage treatment, environmental governance and the like.

The invention discloses a modified calcium carbonate of cables. The modified calcium carbonate is prepared from the following raw materials of calcium carbonate, tyrosine, a catalyst, an initiator, potassium peroxymonosulfate, potassium hydrogen phosphate, a bridging agent, a regulator, a crosslinking agent, an accelerant, allyl benzene, a plasticizer, sodium persulfate, hydrosol aluminum hydroxide, activated clay, a compatilizer, a dispersant, ammonium chloride, a smoke suppressor, an ultraviolet absorbent, an optical stabilizer, an anti-aging agent and a stabilizer. The modified calcium carbonate has the advantages that by modifying the calcium carbonate, the problems of hydrophilia and oleophobicity of calcium carbonate, poor dispersivity, easiness in settlement, low mechanical strength, poor compatibility with polymers, failure to achieve an enhancing function and the like are solved, and the application range of the calcium carbonate is increased; the anti-aging, flame-retardant, smoke-eliminating and other functions of the modified calcium carbonate are simultaneously realized.

The invention relates to a method for promoting residual sludge anaerobic fermentation to produce fatty acid through potassium peroxymonosulfate sulfate compound salt (PMS). The method specifically comprises the following steps: (1) treating residual active sludge generated by a secondary sedimentation tank of a municipal sewage treatment plant as a fermentation raw material, and naturally settling to remove liquid supernatant to concentrate and treat to obtain a sludge sample; (2) mixing and pre-treating the sludge sample with potassium peroxymonosulfate sulfate compound salt (PMS), and fermenting under an anaerobic environment to generate fatty acid. After residual sludge is subjected to PMS pretreatment, dissolving of organic substances in sludge is quickened, and activity of acid-consuming microorganisms such as methanogenic bacteria is further inhibited sufficiently, and therefore, the acid yield is greatly increased, and sludge anaerobic fermentation time is shortened; and moreover, the method provided by the invention is simple in operation, and has important environment-friendly ecological significance for reducing, recycling and stabilizing sludge.

The invention discloses a preparation method of potassium peroxymonosulfate. The preparation method comprises following steps: adding a potassium peroxydisulfate solution into a hydrolysis reactor, carrying out hydrolysis under the action of a catalyst to generate potassium peroxymonosulfate and potassium hydrogen sulfate; after the hydrolysis degree reaches the requirement, removing the catalystfrom the solution by a filter, adding the solution into a neutralization reactor, adding a stabilizing agent into the neutralization reactor, then adding potassium hydrogen sulfate solids, stirring, mixing; then adding potassium hydroxide into the neutralization reactor to carry out neutralization reactions; carrying out vacuum concentration, cooling, crystallizing, performing centrifugal separation, and baking to obtain a dry product of potassium peroxymonosulfate. Potassium peroxydisulfate is used to replace high concentration hydrogen peroxide, reacts with fuming sulfuric acid, and is hydrolyzed to generate potassium peroxymonosulfate and potassium hydrogen sulfate under the action of a catalyst; the reactions are mild, the reaction heat is little, the danger of reactions is reduced effectively; under the action of the catalyst, the degree of directional hydrolysis is high, the active oxygen content of products is qualified, and the product quality is stable.

The invention belongs to the technical field of sludge treatment, and particularly relates to a method for simultaneously and deeply conditioning and dewatering sludge and recycling and conditioning an activating agent. The treatment method includes the steps: adjusting water content and pH (potential of hydrogen) of sludge; mixing the sludge and zero-valent iron to obtain mixture, continuing to add potassium hydrogen peroxymonosulfate to perform heat treatment of the sludge, performing magnetic separation of the zero-valent iron on the treated sludge to reach recycling of the activating agentand conditioning of the sludge, and dewatering the treated sludge. The reduction rate of specific resistance of the conditioned sludge is 91.1%, water content of filter cakes is reduced to 67.1%, andiron recycling rate reaches 98.3%. According to the method, the sludge is synergistically conditioned through combination of chemical activation and heat activation based on sulfate radical anion, dewatering performance of the sludge can be remarkably improved, the activating agent is recycled, and popularization of the technique has important environmental and ecological significance for national sludge treatment and disposal.

The invention discloses a management method of a eutrophic water body. The management method comprises the following steps: uniformly mixing bacillus subtilis, nitrifying bacteria and denitrifying bacteria according to a certain ratio to prepare a denitrification, dephosphorization and algal inhibition compound microorganism preparation, wherein the content of beneficial bacteria in the denitrification, dephosphorization and algal inhibition compound microorganism preparation is as follows: the content of the bacillus subtilis is greater than or equal to 8.0*10<8>cfu/g, the content of the nitrifying bacteria is greater than or equal to 2.0*10<6>cfu/g and the content of the denitrifying bacteria is greater than or equal to 2.0*10<6>cfu/g; directly and uniformly scattering potassium peroxymonosulfate sulfate compound salt grains into a water body to be managed, and directly scattering according to the dosage of 50 to 1000g/Mu/m, and keeping the water body on an electric potential of 500MV or more; after adding the potassium peroxymonosulfate sulfate compound salt and treating the water body for 12h, directly and uniformly scattering the denitrification, dephosphorization and algal inhibition compound microorganism preparation into the water body to be managed, and directly scattering according to the dosage of 50 to 500g/Mu/m. The preparation is directly added by phases and doesnot need to be aerated; the denitrification, dephosphorization and algal inhibition effect is obvious and water body electric potential balance, bacterium phase balance and algal phase balance and a self-purification capability of the water body is formed.

A synthesis method of a 2-substituted benzoxazin ketone compound shown in the chemical formula (I) comprises the following steps: using 2-aryl indole as a raw material, using potassium hydrogen sulfate compound salt 2KHSO5. KHSO4. K2SO4 oxidation as an oxidizing agent, and performing oxidation reaction to obtain the 2-substituted benzoxazin ketone compound, wherein R represents a hydrogen atom, an alkyl of C1-C6, a naphthenic base, an alkoxy of C1-C6, halogen and an aryl group, and R' represents an aryl group or a substituted aryl group, an alkoxy of C1-C6, an aryloxy group, an alkoxy group of C1-C6 and an aryl amine group. The synthesis method has the advantages of green, high efficiency, mild reaction condition, simple operation, wide application range, low manufacturing cost, high synthesis yield and the like.

The invention discloses a method for controlling crystallization growth of potassium peroxymonosulfate composite salt. The method comprises the following steps: (1) adding 1-hydroxyethylidene-1,1-diphosphonic acid into a hydrogen peroxide solution, and adding fuming sulfuric acid into the hydrogen peroxide solution to obtain an oxidation solution of peroxymonosulfate; (2) adding the oxidation liquid prepared in the step (1) and potassium carbonate into a neutralization kettle of water or centrifugal mother liquor, and carrying out a neutralization reaction; (3) transferring the reaction solution neutralized in the step (2) into a crystallization kettle, adding a crystal modifier and seed crystal slurry containing potassium peroxymonosulfate composite salt, stirring, cooling and crystallizing; and (4) carrying out solid-liquid separation on the cooled and crystallized material in the step (3), and drying and screening the solid to obtain the potassium peroxymonosulfate composite salt with the particle size of more than 200 meshes. The potassium peroxymonosulfate composite salt prepared by the crystallization method disclosed by the invention is relatively large in particle size andhigh in yield, and has natural moisture absorption resistance and anti-caking property, so that the stability of active oxygen of the product is higher.

The invention discloses a flow modifier for polyvinyl chloride. The flow modifier for the polyvinyl chloride is prepared from the following raw materials in part by weight: 20-23 parts of methyl methacrylate, 30-35 parts of butyl acrylate, 0.3-0.5 part of sodium dodecylbenzene sulfonate, 0.3-0.5 part of divinyl benzene, 0.3-0.4 part of potassium peroxymonosulfate, 35-40 parts of nano calcium carbonate, 0.1-0.2 part of sodium stearate, 0.6-0.8 part of polyethylene oxide, 0.4-0.6 part of dimethyl silicone, 3-4 parts of silver nitrate, 11-14 parts of molybdenum sulphide, 8-10 parts of hydroxyethyl starch, 0.5-0.7 part of silane coupling agents kh550 and a defined amount of deionized water. The prepared flow modifier for the PVC (polyvinyl chloride) can be widely used for the field of PVC sections, tubes and plates; properties of impact resistances and high strength of PVC materials can be improved; and the flow modifier for the polyvinyl chloride is worthy of being popularized.