26 results about "Permanganic acid" patented technology

To provide a pretreatment cleaning agent for electroless plating and a method for forming electroless plating using the same that eliminate the need of surface roughening to a substrate with a strong acid such as a chromic acid or permanganic acid, can perform cleaning of the surface of a substrate and coupling treatment at the same time, and can form metal plating having a flat contact surface to a substrate.SOLUTION: A pretreatment cleaning agent for electroless plating includes an inorganic alkali, a cleaning agent including a surfactant, and a silane coupling agent and can perform cleaning of the surface of a substrate and coupling treatment at the same time.SELECTED DRAWING: Figure 1

The invention relates to the field of heavy metal detection, in particular to a boron-doped carbon quantum dot and a preparation method and application thereof. In order to realize synchronous detection of dichromate radicals and permanganate radicals, curcumin and m-phenylenediamine are used as a carbon source and a nitrogen source, boric acid is used as a boron element doping agent, and the boron-doped carbon quantum dots are obtained by adopting a one-step solvothermal method. Wherein curcumin and m-phenylenediamine are used as precursors, boric acid is used as a boron element doping agent, and the boron-doped carbon quantum dots are synthesized. The preparation method is simple, and the prepared B-N-CDs has blue-green fluorescence, shows excellent biocompatibility and photobleaching resistance, is successfully applied to detection of Cr2O7 < 2-> and MnO4 <-> in water, is successfully applied to the field of fluorescent ink, and has potential value in the aspect of anti-counterfeiting marks.

To provide a method for recovering metallic zinc from solid metallurgical waste containing zinc and manganese.SOLUTION: A. contacting the solid metallurgical waste with an aqueous leaching solution comprising chloride ions and ammonium ions to produce one or more leachates comprising zinc ions and manganese ions and one or more insoluble solid residues; b. cementing the leachate by adding metallic zinc as a precipitating agent to remove one or more metals other than zinc and manganese present in ionic form in the leachate; B. producing a purified leachate; and c. subjecting the purified leachate to electrolysis in an electrolytic cell comprising one or more cathodes and one or more anodes to deposit metallic zinc on the cathodes and produce one or more effluent leachates. The method comprises, prior to the electrolysis, the step of precipitating manganese ions by oxidation with permanganate ions and subsequently separating the sediment containing MnO2.SELECTED DRAWING: Figure 1

The present invention belongs to the field of formaldehyde removal materials, and specifically relates to a melt-blown film-manganese oxide composite formaldehyde removal material and its preparation and application. The preparation steps are as follows: placing the melt-blown film in a divalent manganese salt solution for ultrasonic-assisted treatment, wherein the Mn in the divalent manganese salt solution is 2+ The meltblown film is subjected to ultrasonic treatment and subjected to a surface reaction in a permanganate source solution, whereby manganese dioxide is in situ deposited on the meltblown film to produce the meltblown film-manganese oxide composite formaldehyde removal material. The permanganate source solution contains permanganate ions at a concentration of 0.35 to 0.45 M, and the molar ratio of Mn in the meltblown film after ultrasonic treatment to Mn in the permanganate source solution is 1:2.5 to 15. The material of the present invention can achieve excellent formaldehyde removal efficiency and effectiveness even at low formaldehyde levels.

A non-thermal method for regenerating an alkali metal permanganate impregnated molecular filter comprising: washing a spent molecular filter comprising oxidized products selected from manganate (MnO₄²⁻), manganese dioxide (MnO₂), and sulfate and nitrate salts using distilled water; contacting said washed and wet molecular filter with a solution comprising: (i) an alkali metal hydroxide, and (ii) an alkali metal persulfate, to promote in-situ oxidation of Mn(IV) or Mn(VI) species to Mn(VII), thereby obtaining a treated molecular filter; and drying the treated molecular filter to yield a regenerated molecular filter characterized by the reformation of permanganate ions.

An abrasive slurry of the present invention includes manganese oxide abrasive grains containing manganese oxide particles, permanganate ions, phosphates, and a polymeric additive containing one or more water-soluble organic polymers selected from the group consisting of a polycarboxylic acid, a polycarboxylate, a salt of naphthalene sulfonic acid formalin condensate, polyvinyl alcohol, polyethylene glycose, polyvinylpyrrolidone, and copolymers thereof. Furthermore, in a polishing method of the abrasive slurry of the present invention, an object to be polished is polished using the abrasive slurry of the present invention.

The invention provides a method for synthesizing a bionic water splitting catalyst containing rare earth ions in one step. According to the method disclosed by the invention, trivalent manganese salt, trivalent rare earth X salt, organic carboxylic acid R1COOH, micromolecules containing amide groups and tetrabutylammonium permanganate are taken as raw materials, and the Mn4XO4 <-> or Mn4XO5 <-> cluster compound is efficiently synthesized under a mild condition through a one-step reaction. Compared with methods disclosed in literatures, the synthesis method is simpler to operate, milder in reaction condition, cheap in raw material, high in product yield and more suitable for large-scale preparation of cluster compounds.

The invention discloses a manganese sulfate solution-based sodium permanganate in-situ reaction deep adsorption molybdenum removal process, which comprises the following steps of: taking a manganese sulfate solution, and pouring the manganese sulfate solution into a container; the PH value of the solution in the container is adjusted to 3.0-3.5, and the temperature in the container is increased to 60 DEG C or above; sodium permanganate is added into the manganese sulfate solution, manganese sulfate is oxidized by permanganate radicals in the sodium permanganate, chemical manganese dioxide is directly generated in the container, and molybdenum in the container is adsorbed by the chemical manganese dioxide. The method has the beneficial effects that potassium ions are not remained in the solution after the oxidant is added, the problem of overhigh concentration of the potassium ions in the solution can be directly avoided, and when the concentration of the potassium ions in the electrolytic manganese dioxide for preparing the alkaline zinc-manganese battery is overhigh, the corrosion of a zinc negative electrode in the alkaline zinc-manganese battery can be reduced, and the service life of the alkaline zinc-manganese battery is prolonged. The molybdenum removal process has the advantage that the concentration of the residual potassium ions in the manganese sulfate solution is relatively low.

The present application belongs to the field of gas treatment, and particularly relates to a neodymium-doped delta-MnO2 aldehyde removal material, a preparation method, application and aldehyde removal product thereof, wherein the preparation method of the neodymium-doped delta-MnO2 aldehyde removal material is as follows: a solution A containing a divalent manganese source and a neodymium source is obtained, a solution B containing permanganate is obtained, the solution A and the solution B are synchronously added into a bottom liquid to perform a nucleation reaction, and then a crystallization treatment is performed to obtain the neodymium-doped delta-MnO2 aldehyde removal material; wherein the molar ratio of the divalent manganese source and the neodymium source in the solution A is 1:0.01-0.3; the molar ratio of the divalent manganese source in the solution A and the permanganate source in the solution B is 1:0.6-1; the temperature of the nucleation reaction is 15-45 DEG C; and the temperature of the crystallization treatment is above 70 DEG C. Through in-depth research, the present application innovatively uses neodymium to participate in the synthesis process of manganese dioxide, cooperates with the dosage of Nd, and jointly controls the nucleation temperature and the crystallization temperature, so that the formation of a delta phase can be unexpectedly induced, and in addition, the formation of a flower-like morphology conducive to the removal of formaldehyde can also be induced.

The invention discloses a micropore technology for improving copper surface binding force. Micropores are formed in the copper surface of an AMB / DBC product, the specific surface area of bonding copper is increased, the anchoring effect is generated, and the binding force of EMC and the copper surface is improved. The micro-pores are concave and convex by stripping copper, so that the problem of oxide layer stripping does not exist above a certain thickness; the micropore forming method comprises sulfuric acid and hydrogen peroxide series, sodium chloride and hydrochloric acid series, permanganate and copper sulfate series, ammonia and peroxyphosphate series, plasma etching and laser copper surface micropore machining. According to the micropore technology for improving the copper surface binding force, the wet etching technology is adopted, the surface energy difference of copper crystal faces is utilized, the etching rate difference of the crystal faces with low reactivity and the crystal faces with high reactivity is maximized, and therefore the overall surface roughness change is minimized, and meanwhile the copper surface binding force is improved. And micropores with certain sizes and depths are locally formed, so that the EMC binding force is obviously improved.

The invention provides a preparation method and application of a targeted synchronous passivation material for cadmium-arsenic combined polluted soil. The preparation method of the targeted synchronous passivation material comprises the following steps: in a whole-course nitrogen closed atmosphere, pumping a metal salt dispersion liquid and a precipitant solution at a constant speed by using a peristaltic pump, mixing with a permanganate modified solution, keeping water bath heating and magnetic stirring, then keeping room temperature aging, and separating, washing and drying an obtained solid-liquid mixed phase to obtain the targeted synchronous passivation material. The targeted synchronous passivation material for the cadmium and arsenic combined polluted soil is obtained. The permanganate modified solution is a potassium permanganate solution prepared from water without carbon dioxide, and the concentration of the permanganate modified solution is 0.25-0.75 mol / L; the pumping speed of the metal salt dispersion liquid and the precipitant solution is controlled to control the pH value of a mixed system after the metal salt dispersion liquid and the precipitant solution are pumped to be 10.5-11.5. The targeting synchronous passivation material prepared by the invention can oxidize As (III) into low-toxicity stable As (V), and ecological hazards of cadmium and arsenic can be reduced from the source.

The application provides a method for one-step synthesis of a rare earth ion-containing biomimetic water splitting catalyst. The method of the application uses a trivalent manganese salt, a trivalent rare earth X salt, an organic carboxylic acid R1COOH, an amide group-containing small molecule and a tetrabutylammonium permanganate salt as raw materials, and efficiently synthesizes a Mn4XO4- or Mn4XO5- cluster under mild conditions through one-step reaction. Compared with the method disclosed in the literature, the synthesis method is simpler in operation, milder in reaction condition, cheaper in raw material and higher in product yield, and is more suitable for large-scale preparation of the cluster.

The invention discloses a kind of organic material based on fluorene ring and its preparation method and application, the present invention synthesizes a kind of organic material 9-bis(3-benzoic acid)ethylene-fluorene based on fluorene ring and carboxyl group for the first time, the material has obvious aggregation-induced luminescence effect, its luminous performance is weak in benign solvent, and the luminous performance in poor solvent is strong. The material can be used for detecting aqueous phase permanganate, and simultaneously because it is carboxyl group, compared to other fluorene compounds, can be more with the metal species of oxygen coordination, is more widely used, and preparation method is simple, yield is high, reaction activity is good, can be applied and promoted on a large scale.

Chemical balancing reactor (40) for an electrochemical energy storage system (21), the balancing reactor (40) comprising: - a first compartment (41) for circulating an electrolyte solution (24) containing permanganate ions, - a second compartment (42) for circulating a gaseous mixture containing at least dihydrogen, - a separator (43) extending between the first compartment (41) and the second compartment (42), the separator comprising a porous membrane, suitable for allowing contact between the gaseous mixture and the electrolyte solution (24), and for preventing the passage of the electrolyte solution (24) from the first compartment (41) into the second compartment (42). Figure to be published with the abbreviation: 2

This invention relates to the preparation and application of carbon dot-functionalized lanthanide metal-organic framework materials for the detection of permanganate ions in water: S1, selecting raw materials: europium nitrate, trimesic acid, and grapefruit peel; S2, dissolving trimesic acid in anhydrous ethanol and stirring; S3, adding europium nitrate solution to the solution obtained in S2 and stirring; S4, allowing to stand, centrifuging to collect the white precipitate, washing and drying to obtain a white lanthanide metal-organic framework material; S5, drying and crushing grapefruit peel, adding deionized water, and transferring to a high-pressure reactor for reaction; S6, centrifuging the solution obtained in S5, taking the supernatant and filtering it through a microporous membrane; S7, dialysis purification of the solution obtained in S6 to obtain a pale yellow carbon dot solution; S8, mixing the carbon dot solution obtained in S7 with the lanthanide metal-organic framework material in S4 to obtain a carbon dot-functionalized lanthanide metal-organic framework material; S9, using the material obtained in S8 for the detection of permanganate ions in water.

The present invention relates to a system for polishing a hard mask, comprising a composition comprising permanganate ions of a permanganate oxidant; a substrate comprising a hard mask comprising at least one of a non-carbon boron component, a boron-carbon component, a non-carbon silicon component, a non-carbon chromium component, a non-carbon zirconium component, or any combination thereof; and a chemical mechanical planarization (CMP) device configured to contact the composition with the substrate so as to remove at least a portion of the hard mask of the substrate.

A system for polishing a hardmask includes a composition including permanganate ions of a permanganate oxidizer; a substrate including a hardmask including at least one of a non-carbon-boron component, a boron-carbon component, a non-carbon-silicon component, a non-carbon-chromium component, a non-carbon-zirconium component, or any combination thereof; and a chemical mechanical planarization (CMP) apparatus configured to contact the composition with the substrate to remove at least a portion of the hardmask of the substrate.

The present application belongs to the field of pollutant detection, and particularly relates to an upconversion fluorescent nanoprobe, a preparation method, and an application thereof; the upconversion fluorescent nanoprobe provided by the present application can be excited by a light source with a wavelength of 980 nm, has no background fluorescence interference, and has a higher signal-to-noise ratio, which can improve the sensitivity and anti-interference ability of the fluorescent probe; and the upconversion fluorescent nanoprobe provided by the present application also has the ability to specifically detect permanganate (MnO4 ‑ ) and dichromate (Cr2O7 2‑ ) and other oxidizing ions, thus solving the problem that the existing fluorescent probes cannot meet the requirements of permanganate (MnO4 ‑ ) and dichromate (Cr2O7 2‑ ) Technical issues regarding testing requirements.

The present application relates to a kind of preparation method of specific crystal form manganese dioxide and its application in the ring addition reaction of CO2 and propylene oxide, belong to catalyst preparation and application technical field, its preparation method is as follows: the potassium permanganate of certain concentration and manganese sulfate are fused and heated to specified temperature, under the control of microflow, with certain flow rate is uniformly mixed in the reaction kettle and is reacted, after standing, washing, adjusting pH, drying, grinding, the target catalyst is obtained.In the catalyst prepared, the catalytic activity of δ-MnO2 is the best, the conversion rate of propylene oxide is the largest and reaches 100%, the selectivity of propylene carbonate reaches more than 99%.The preparation method is simple, δ-MnO2 can be mass-produced, the production cost is low, the yield is higher, is used to catalyze propylene oxide and CO2 conversion into propylene carbonate, the selectivity is high, and can be recycled four times, has extensive industrialization prospect.

To provide a chemical decontamination method and equipment for carbon steel and stainless steel components of nuclear power plants capable of reducing process time compared to conventional methods with high decontamination efficiency on both carbon steel and stainless steel in chemical decontamination of systems containing carbon steel and stainless steel in chemical decontamination of systems containing carbon steel and stainless steel.SOLUTION: The chemical decontamination method for carbon steel components of nuclear power plants includes: a decontamination process of purification system piping 67, RHR piping 82 of decontaminating a purification system piping 67 and an RHR piping 82 of the decontamination target area by supplying a formic acid, an ascorbic acid, and a corrosion inhibitor; after the decontamination process of the purification system piping 67 and the RHR piping 82, a formic acid decomposition step in which hydrogen peroxide is supplied and formic acid is decomposed using the oxidation-reduction potential as an indicator; and after the formic acid decomposition step, a residual organic matter decomposition step that decomposes residual organic matter by supplying compounds containing permanganate ions.SELECTED DRAWING: Figure 4

Disclosed herein is a first composition comprising a trivalent chromium cation and an aqueous carrier. Also disclosed herein is a second composition comprising a permanganate anion and an aqueous carrier. Also disclosed herein is a system for treating a metal substrate comprising a first composition comprising a trivalent chromium cation and an aqueous carrier and optionally a second composition comprising a permanganate anion and an aqueous carrier. Also disclosed herein is a method of treating a metal substrate comprising contacting at least a portion of the substrate surface with a first composition comprising a trivalent chromium cation and an aqueous carrier and optionally contacting at least a portion of the substrate surface with a second composition comprising a permanganate anion and an aqueous carrier.

An object of the present invention is to provide a novel method for producing, without using an organic iron compound as a production raw material, water in which permanganate ions exist stably over a long period of time. As a means for resolution, the method comprises dissolving a divalent inorganic iron compound and a divalent manganese compound in water with a pH of less than 3.5, and then feeding ozone microbubbles into the water.

Electrochemical balancing reactor (40) for an electrochemical energy storage system (21), the balancing reactor (40) comprising: - a first compartment (41) for circulating a first electrolyte solution (24) containing permanganate ions, the first compartment (41) comprising a first electrode (43) configured to be in contact with the first electrolyte solution (24) in the first compartment (41), - a second compartment (42), configured to contain the first electrolyte solution (24) in a non-circulating manner, the second compartment (42) comprising a second electrode (44) configured to be in contact with the first electrolyte solution (24) in the second compartment (42), - a separator (46) extending between the first compartment (41) and the second compartment (42), the separator (46) comprising a microporous membrane,- means (45) for applying an electrical voltage between the first electrode (43) and the second electrode (44). Figure to be published with the abbreviation: 2,

The present application provides a flaky lithium manganate and its preparation method and application. The preparation method comprises the following steps: (1) mixing an oil phase substance, an emulsifier, and a divalent manganese salt with water to obtain an O / W emulsion; (2) mixing a permanganate solution with the O / W emulsion, stirring and reacting to obtain a flaky manganese tetraoxide; (3) mixing the flaky manganese tetraoxide with a lithium source, and sintering the mixture to obtain the flaky lithium manganate. The present application uses an emulsion method to prepare a structurally stable flaky lithium manganate. The flaky lithium manganate can greatly shorten the transmission path of lithium ions, improve the extraction efficiency of lithium ions, increase the specific surface area of ​​the electrode material, promote sufficient contact between lithium ions in the electrolyte and the electrode material, and further promote the transmission of lithium ions.

The invention relates to a method for the anti-corrosion treatment of a magnesium alloy component, in which method the component is immersed in an anti-corrosion aqueous solution having a given temperature and containing permanganate ions MnO4-and dihydrogen phosphate ions H2PO4-for a given time. According to the invention, the anticorrosive aqueous solution contains permanganate ions [MnO4-] at a molar ion concentration of 0.18 mol / L or more and 0.32 mol / L or less prior to immersion of the component, the pH of the corrosion-resistant aqueous solution is maintained at a value greater than or equal to 3.2 and less than or equal to 4.2, preferably greater than or equal to 3.4 and less than or equal to 4.0 for the given time by adding phosphoric acid, and after the given time, the part is removed from the aqueous solution and flushed with water.

To provide a polishing liquid and polishing method that enable polishing in the low polishing rate region without changing the mechanical polishing conditions, thereby obtaining a high-quality polished surface.SOLUTION: The polishing liquid for a semiconductor substrate including permanganate ions and water contains at least one type of phosphate or phosphoric acid. The phosphate concentration (total content) is 0.005 mol / L or more and less than 0.02 mol / L. This facilitates polishing in the low polishing rate range without changing the mechanical polishing conditions, thereby obtaining a high-quality polished surface.SELECTED DRAWING: Figure 3