69 results about "Sodium permanganate" patented technology

The permanganate ion and an alkaline earth metal base of calcium and / or magnesium are distributed into the soil by a means of mechanical mixing to destroy contaminants in the soil and groundwater by chemical oxidation. The disclosed method produces a stable, post-treatment, manganese dioxide precipitate that does not adversely effect the ground water with high dissolved manganese concentrations. The permanganate salts may include potassium, magnesium or sodium permanganate, and the preferred alkaline earth metal bases may include calcium oxide, calcium hydroxide, magnesium oxide and magnesium hydroxide. Dolomite quick lime may be used to supply an inexpensive source of the desired calcium and / or magnesium base. The calcium and / or magnesium base may be added before, during or after the addition of the permanganate salt.

The invention relates to the technical field of pollution repairing and treatment of organic pollutants in soil, and especially discloses a chemically repairing method used in soil polluted by nitrobenzene, nitrochlorobenzene and the like. By means of the method in which the nitrobenzene, the nitrochlorobenzene and the like are firstly reduced into phenylamine which is easy to oxidatively degrade with zero-valent iron and finally the degraded product is oxidized to generate carbon dioxide and water, the soil, which is polluted by the organic pollutants including the nitrobenzene and the like, is completely repaired and removal efficiency of the organic pollutants is increased. The method can achieve a removal rate of the nitrochlorobenzene being 88.3-95.8%, wherein the nitrochlorobenzene is a difficultly-degraded organic substance. The method can overcome problems of low removal efficiency, high medicine cost and troublesome follow-up treatment during removal of the nitrobenzene-series organic pollutants in the soil with Fenton reagents, potassium persulfate, sodium permanganate and the like which are common in the prior art. By means of an indirectly oxidative degradation in which reduction is carried out firstly and oxidization is carried out after that, usage amount of an oxidizing agent can be reduced and the removal rate of the nitrobenzene-series organic pollutants can be increased. Meanwhile, the method is simple in operation and can avoid secondary pollution to environment by the oxidizing agent. The method can effectively achieve in-situ repairing of polluted soil and is especially suitable for complete repair of the soil severely polluted by the organic pollutants in local factory removal.

A process for absorbing ethylene comprising preparing a support material impregnated with an aqueous sodium permanganate solution, wherein the ethylene absorption agent is prepared by a process of selecting a support material, preparing a sodium permanganate solution, and impregnating the carrier material with the sodium permanganate solution.

The invention belongs to the technical field of preparation of cobalt manganese oxide and discloses a preparation method of layered cobalt manganese double-metal oxide as well as a product thereof. The preparation method comprises the following steps: (a) mixing water-soluble cobalt salt containing divalent cobalt and water-soluble manganese salt containing divalent manganese uniformly to form a precursor aqueous solution, adding the precursor aqueous solution into an alkaline aqueous solution of potassium permanganate or sodium permanganate, and mixing, stirring and reacting to generate precipitate; and (b) filtering out the precipitate, performing hydrothermal reaction, performing suction filtration and washing on the product after reaction, removing the residual solvent and drying to obtain the needed layered cobalt manganese double-metal oxide. By the preparation method, the obtained layered cobalt manganese double-metal oxide has uniform shape, enables cobalt and manganese elements to be precipitated uniformly and highly, has large specific surface area and has excellent methylbenzene catalytic combustion cavity; furthermore, the preparation method is simple, simple in requirement on equipment, low in raw material price, low in preparation energy consumption, high in repeatability and suitable for popularization and application.

Metallized polyamideimide films for use as a substrate, in which a conductive layer is adhered to a polyamideimide film at high peel strength, may be prepared in a relatively small number of steps without using a special material by treating an inorganic filler-containing polyamideimide film with an alkaline permanganate solution, and subjecting the treated surface to electroless copper plating, or successive electroless copper plating and electrolytic copper plating. Preferably, a potassium permanganate solution or a sodium permanganate solution is used as the alkaline permanganate solution.

The invention discloses a preparation method of a manganese dioxide / carbon-based flexible electrode material. The method comprises steps of (1) cleaning and drying a flexible carbon substrate; (2) carrying out dipping acidification treatment of the treated carbon substrate by using mixed acid; wherein the mixed acid is formed by mixing concentrated nitric acid and concentrated sulfuric acid according to the volume ratio of 1:1-1:6; (3) preparing 10-1000mM metal salt aqueous solution, wherein the metal salt is at least one of potassium permanganate, sodium permanganate, lithium permanganate, barium permanganate and zinc permanganate; (4) putting the carbon substrate treated in the (2) into metal salt solution, and carrying out ultrasonic treatment for 20-60 minutes; (5) heating the mixturesubjected to ultrasonic treatment in the (4); and (6) naturally cooling the product subjected to heating treatment to room temperature, washing, and carrying out vacuum drying to obtain the manganesedioxide / carbon-based flexible electrode material. The preparation method is advantaged in that manganese dioxide is firmly attached to a surface of the flexible carbon substrate, can be used for a flexible supercapacitor, and has relatively high specific capacity and good cycling stability.

Media for selectively removing radium ions from water where manganese oxide (DMO) has been dispersed in a cation ion exchange resin (gel or macroporous) to adsorb radium ions. The media is manufactured by precipitating a soluble manganese (II) salt such as manganous sulfate with a permanganate salt such as sodium permanganate inside a strong acid cation (SAC) to form a resin containing highly dispersed manganese oxides. The resin is then post treated with a reducing agent such as sodium metabisulfite (Na2S2O2) to prevent the leaching of soluble manganese from the resin. The reducing treatment ensures that soluble manganese species will be converted into an insoluble oxide form.

The invention provides a novel air purification material and a preparation method thereof. The novel air purification material contains a particle A and a particle B, wherein the weight ratio of the particle A to the particle B is (1 to 9) to (9 to 1); the particle A contains sepiolite and the particle B is a catalyst carrier particle loaded with an oxidant; the particle A is prepared from the following components in parts by weight: 40 to 60 parts of the sepiolite, 15 to 25 parts of bentonite, 30 to 40 parts of attapulgite and 5 to 15 parts of activated carbon; the particle B is an active alumina particle loaded with potassium permanganate or sodium permanganate; both the diameter of the particle A and the diameter of the particle B are 2 to 4mm. The novel air purification material provided by the invention has the advantages that harmful gases can be efficiently adsorbed; in addition, harmful gases can be completely decomposed and no secondary pollution is caused.

The invention discloses a preparation method of amino-functionalized manganese dioxide-loaded nano-magnetic bentonite. The preparation method comprises the following steps: selecting sodium bentonite,ferric chloride, cobalt chloride, sodium acetate and ethylene glycol as raw materials, mixing uniformly, and then performing hydrothermal reaction to prepare nano-magnetic bentonite A; then mixing the nano-magnetic bentonite A with manganese chloride and a sodium permanganate solution, in which potassium permanganate is dissolved, so as to react to obtain manganese dioxide-loaded nano-magnetic bentonite B; then reacting the manganese dioxide-loaded nano-magnetic bentonite B with an organic solvent, a silane coupling agent and the like to obtain novel amino-functionalized manganese dioxide-loaded nano-magnetic bentonite. According to the novel nano-magnetic bentonite disclosed by the invention, an iron and cobalt-containing magnetic nanomaterial is loaded on the bentonite, active manganesedioxide and amino functional groups are introduced, the selectivity and removal effect of cadmium ions can be effectively strengthened when the paramagnetic property of a material is simultaneously maintained, and the adsorption efficiency of Cd<2+> is as high as 99% or above.

The invention relates to a low-temperature SCR manganese oxide catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: S1: adding acid into a sodium permanganate solution, adjusting the concentration of hydrogen ions to be 0.06 to 0.4 mol / L, standing, filtering, washing, drying, and obtaining manganese dioxide; and S2: calcining the manganese dioxide at 300 to 400 DEG C, thus obtaining a manganese oxide catalyst. The preparation method provided by the invention is simple in process, convenient to control, high in yield, and easy in industrialized popularization and application; and the prepared manganese oxide catalyst is of a non-crystal form structure, can be used as a low-temperature SCR catalyst, and has good low-temperature SCR denitration activity and wide temperature window, the conversion rate at 150 DEG C is 90 percent, and the conversion rate in the temperature range of 150 to 250 DEG C is kept at 90 percent or above.

The invention discloses ladle bottom argon blowing air brick for smelting high-purity high manganese steel. The air brick is prepared from the following materials: forsterite sand, fused magnesia, corundum, sodium silicate, sodium permanganate, an explosion-proof admixture, a polycarboxylate dispersion water reducing agent and water. Uniformly-distributed tiny pores can be formed in the air brickdisclosed by the invention, and the permeation volume is 1.5 times or more than 1.5 times of the permeation volumes of slit and diffuse air bricks; argon is permeated in molten steel through the plurality of pores, so that the purification rate of the molten steel is obviously increased, and the contents of oxygen and hydrogen in the molten steel are reduced; the problems that a small number of straight thick holes are caused by slag-clearing iron oxygen burning, the argon intensively passes through the molten steel and quickly escapes from the liquid level and the like are solved; the purification rate of the molten steel is obviously increased.

The invention discloses a preparation method for 3,5-dibenzoyl-2-deoxy-2-fluoro-2-methyl-D-ribono-gamma-lactone. The preparation method comprises the following steps: subjecting a starting raw material D-mannitol to acetone protection and sodium periodate oxidation; then subjecting the treated D-mannitol and a self-made ylide reagent to the Witting reaction; then carrying out selective oxidation by using an aqueous sodium permanganate solution; then successively carrying out sulfonylation, fluorination with potassium fluoride, and ring closing with a concentrated protective group protective group; protecting the hydroxyl group by using benzoyl chloride; and then carrying out purification so as to obtain the final product 3,5-dibenzoyl-2-deoxy-2-fluoro-2-methyl-D-ribono-gamma-lactone. The preparation method provided by the invention uses easily available and cheap raw materials, so production cost is greatly reduced; and the operation of the preparation method is coherent and simple, and the quantity of waste gas, waste water and industrial residues is lower than the quantity of waste gas, waste water and industrial residues reported in the prior art.

The invention relates to a preparation method of aluminum alloy cobalt salt chemical conversion coating treating fluid, belonging to the field of aluminum alloy surface treatment. A porous chemical conversion coating formed by treating aluminum alloy through treating fluid has the characteristics of no chromium, environment friendliness, and good corrosion resistance property, and the like, the treating fluid is prepared from cobalt salt, oxidant, ligand and water, wherein per liter of cobalt salt chemical conversion treating fluid contains the following compositions by weight: 20-50g of cobalt salt, 1-50g of an oxidant, and 2-7g of ligand, and the PH value of the treating fluid ranges from 3 to 4; the cobalt salt is selected from one or two of cobalt-nitrate hydrate and cobalt-chloride hydrate; the oxidant is selected from one or more of lithium permanganate, sodium permanganate, ammonia permanganate and calcium permanganate; and the ligand is selected from one or two of sodium nitrite or sodium acetate.

The invention relates to preparation for a sofosbuvir key intermediate. With (E)-(S)-3-(2,2-dimethyl-1,3-dioxolane-4-base)-2-ethyl methacrylate being an initial raw material, preparation of 3,5-bis-O-benzoyl-2-deoxidation-2-fluorine-2-C-methyl-D-riboic acid-gamma-lactone is achieved through an epoxidation reaction, fluoridation, a de-acetonylidene cyclization reaction and a benzoyl reaction. According to the method, a synthesis route is short, and in the reaction process, a reagent that oxidability is high, and in the aftertreatment process, potassium permanganate or sodium permanganate and high-corrosivity SOCl2 deep in waste water color will generate a lot of waste water will not be involved.

The invention relates to the technical field of domestic garbage recycling, in particular to a novel environment-friendly domestic garbage recycled coal production method. The method can fully treat domestic garbage, so that environment pollution caused by the domestic garbage can be reduced, moreover, production is simple, and the cost is low. The method includes the following steps that: according to proportion, the domestic garbage, bleaching powder, sodium hydroxide, sodium permanganate, calcium carbonate and urea are fed into a grinder and ground, and the ground mixed particle-like garbage is kept still for reaction under normal temperature; under normal temperature, anhydrous sodium sulphate is dissolved in clean water to the saturation state, and sodium chloride, graphite powder, ammonium nitrite, zinc oxide and sodium permanganate are added to carry out normal-temperature reaction; a moderate amount of clean water is added in the sodium permanganate, used oil, olefin, carbon powder and sodium chloride in an iron kettle, the mixture is heated to 75 DEG C and dissolved, and various products are mixed and shaped, so that a novel domestic garbage recycled coal product is produced.

The invention belongs to the field of chemical industry, and relates to a method for producing sodium permanganate. The method comprises the following steps of: adding water into sodium fluosilicate and potassium permanganate serving as raw materials to perform reaction at the temperature of between 70 and 95 DEG C to obtain the sodium permanganate, performing heating concentration, cooling and filtration on crude solution to obtain 50 to 52Be sodium permanganate concentrate, and diluting the sodium permanganate concentrate to obtain 40.0 to 40.5 percent sodium permanganate solution product. The production method generates the sodium fluosilicate in one step without adopting chlorine oxidation, so the production method is safe and environment-friendly; the product has good quality, and particularly has low chloride content; the reaction is finished under normal pressure, and the reaction conditions are easy to control; and the method has the advantages of simple production process, short flow and no three-waste discharge.

Metallized polyimide films for use as a substrate, in which a conductive layer is adhered to a polyimide film at high peel strength, may be prepared in a relatively small number of steps without using a special material by treating an inorganic filler-containing polyimide film with an alkaline permanganate solution, and subjecting the treated surface to electroless copper plating, or successive electroless copper plating and electrolytic copper plating. Preferably, a potassium permanganate solution or a sodium permanganate solution is used as the alkaline permanganate solution.

The invention provides a method for preparing nitrogen-doped graphene. The method comprises the steps of step 1, 5g of graphite, 1g of sodium nitrate, 2g of potassium nitrate and 2g of sodium bicarbonate are weighed and placed in a beaker with the capacity being 1000 mL, 150 mL of concentrated sulfuric acid is slowly added into the beaker, the beaker is placed in an ice water bath, and magnetic stirring is conducted for 1 hour; and step 2, 15g of potassium permanganate and 2g of sodium permanganate are weighed and slowed added into the beaker and stirred continuously, the temperature of the mixture in the beaker is maintained to be 30 DEG C or below, then the beaker is placed at the room temperature, and stirring is conduced continuously for 24 hours.

The invention is directed to a process for removing chlorite ion from a body of water containing unacceptably high levels of chlorite comprising adding to said body of water a chlorite removal chemical selected from the group comprising sodium dichloroisocyanurate dihydrate, sodium dichloroisocyanurate, trichloroisocyanurate, polyaluminum chloride, sodium permanganate, potassium permanganate, and catalase enzyme.

A method of preparation for high-efficiency and energy-saving desulfuration additive of coal, which is characterized in that its components comprise the following materials by weight percentage: 30-40% ammonium perchlorate, 5-12% manganese carbonate, 5-12% zinc oxide, 10-23% sodium permanganate, 3-9% manganese dioxide, and 20-35% calcium phosphate primary. The above materials are mixed and broken up, and screened with sieve of 250-300 meshes. A method of application for high-efficiency and energy-saving desulfuration additive of coal in that the additive is fully mixed with coal for firing in furnace, wherein the weight ratio between the additive and the coal is between 3 to 1000 and 8 to 1000. While the coal is fired, the additive not only supports combustion to reduce coal consumption but more effectively decreases harmful gases in the furnace by firing, removing and defusing impurities and harmful substances in the coal so that no harmful substances are formed and discharged.

The present invention relates to a method for treating of plastic parts with a treatment solution comprising permanganate wherein the concentration of carbonate compounds in the treatment solution is set to a value less than 200 g / l by the removal of carbonate compounds from the treatment solution by freezing out and subsequent filtration wherein the treatment solution comprises sodium permanganate. The invention further relates to a device for an at least partial regeneration of a treatment solution comprising permanganate, which is used for treatment and / or etching of plastic parts by reducing of a concentration of carbonate compounds comprised in the treatment solution for the implementation of such a method, wherein the device comprises at least one cooling tank which is to be subjected to the treatment solution to be regenerated, and which exhibits a downstream filter device for separating the carbonate compounds from the treatment solution; and additionally the use of such a device for implementing such a method.

Media for selectively removing radium ions from water where manganese oxide (DMO) has been dispersed in a cation ion exchange resin (gel or macroporous) to adsorb radium ions. The media is manufactured by precipitating a soluble manganese (II) salt such as manganous sulfate with a permanganate salt such as sodium permanganate inside a strong acid cation (SAC) to form a resin containing highly dispersed manganese oxides. The resin is then post treated with a reducing agent such as sodium metabisulfite (Na2S2O2) to prevent the leaching of soluble manganese from the resin. The reducing treatment ensures that soluble manganese species will be converted into an insoluble oxide form.

The invention relates to a natural skin whitening soap and a production method thereof. Animal pancreas and soybean meal are taken as main raw materials, Vc extracts from kiwi fruit, strawberry and lemon are added, and white sugar, talcum powder, flavouring, pigments and the like are matched. The invention also relates to ingredients and the production method of the natural skin whitening soap. The following raw materials are adopted in percentage by weight: 20-40% of animal pancreas, 40-50% of soybean meal, 20% of Vc (extracts of kiwi fruit, strawberry and lemon), 0.1-0.5% of white sugar, 3-5% of talcum powder, 0.1-0.3% of spice and 0.2-0.6% of pigments. Kiwi fruit, strawberry and lemon are peeled and flesh of kiwi fruit, strawberry and lemon are placed into a glass container to be ground into slurry by a homogenizer, and then slurry is filtered. Benzene or methylbenzene is added for extraction, sodium permanganate is used for oxidation, and then hydrolysis, esterification, transformation and neutralization are carried to obtain Vc, animal pancreas and soybeans are grounded in container; and the ground animal pancreas and soybeans are mixed with the talcum powder, and moulding and drying are carried out, thus the natural skin whitening soap is obtained. The natural skin whitening soap provided by the invention can whiten and improve skin, can minimize pores and has no stimulation, toxic or side effect.

The invention discloses a method of recovering manganese from a lithium ion battery cathode waste material containing manganese elements. The method comprises the following steps that (1) the powderycathode waste material containing manganese is obtained; (2) after the waste material containing manganese and an addition agent are mixed, the mixture is calcined under the oxygen condition, so thata product is obtained; and (3) the calcined product is subjected to water leaching and filtering operation, so that products are obtained, and are manganese dioxide and a solution containing potassiumpermanganate or manganese dioxide and a solution containing sodium permanganate. According to the method, the manganese technological recovery process is short, the cost is low, the operation is easy, the requirement for corrosion resistance of equipment is low, the additional values of the manganese products which are obtained through recovery are high, and no secondary pollution is generated inthe treatment process.

The invention relates to a method for removing arsenic from an industrial hydrofluoric acid. The method comprises the following steps: firstly, inexpensively, efficiently and accurately calculating the quantity T2 of potassium permanganate to be consumed for removing arsenic out of anhydrous hydrogen fluoride by utilizing a small quantity of samples and the accuracy of a titration result in a sampling titration mode; then adding a potassium permanganate solution of which the adding quantity is 1.45 to 1.55 times as much as T2; and reacting the potassium permanganate solution with the anhydrous hydrogen fluoride in which the arsenic needs to be removed. The experimental result shows that although the hydrofluoric acid obtained by the reaction based on the current adding quantity contains slightly excessive potassium permanganate (existing in the forms of manganese ion and potassium ion), the potassium permanganate in the hydrofluoric acid can be completely removed through rectification and purification; and the content of the arsenic in the finally obtained hydrofluoric acid is below 100ppt (Parts Per Trillion), thereby completely reaching the requirement of the electronic-grade hydrofluoric acid.

The invention discloses a domestic garbage environmentally friendly renewable fuel and a manufacturing method thereof, and belongs to the technical field of renewable energy. The domestic garbage environmentally friendly renewable fuel is prepared from the following raw materials according to the percentage of the total weight of the raw materials: 93.7-96.5% of domestic garbage, 0.1-0.3% of sodium dichloroisocyanurate, 0.2-0.4% of urea, 0.1-0.2% of sodium bicarbonate, 0.1-0.3% of glycerin, 0.2-0.3% of trisodium phosphate, 0.2-0.4% of sugar, 0.4-0.6% of sodium permanganate, 0.2-0.4% of a carbon powder, 0.2-0.4% of sodium chloride, 0.2-0.3% of a graphite powder, 0.1-0.3% of ammonium nitrite, 0.1-0.3% of a manganese powder, 0.1-0.3% of zinc oxide, 0.1-0.3% of anhydrous sodium sulphate and 1.2-1.5% of water. The renewable fuel has the advantages of high heat value, low pollution, good combustion performance and easy storage.

The invention relates to a method for reducing COD (chemical oxygen demand) of phenolic wastewater by using sodium permanganate. The method comprises the following steps of adding solution of sodium permanganate into the phenolic wastewater, stirring the solution, standing the solution, filtering the solution, taking the filtrate, and detecting the value of the COD. In the method, the sodium permanganate is used for treating the phenolic wastewater for the first time, the chrominance of the solution can be obviously reduced, the method has the advantages of high treatment speed, no secondary pollution and the like, phenolic and chlorobenzene organics in the wastewater can be better removed, the COD value of the wastewater can be effectively reduced, and a treatment device is simple, relatively low in cost and suitable for treating the phenolic wastewater.

The invention relates to a method for preparing ultrafine manganese dioxide from potassium permanganate and potassium manganate. The method comprises the following steps: primary hydro-thermal reaction, secondary hydro-thermal reaction, filtering and separating, roasting, etc. The method is short in process flow and mild in conditions and does not need complex equipment; and a manganese dioxide product has high purity, and the maximal granularity of the manganese dioxide product can reach a micron grade.

The invention discloses an evaporator and method for preventing a heating chamber from being blocked during evaporation and concentration of sodium permanganate. The evaporator disclosed by the invention comprises a material mixing tank, a feeding pump, a circulation pipe, a forced circulation pipe, a heating chamber, an evaporation chamber, a forced circulation pump and a discharging pump, as well as a sand inlet device connected with the material mixing tank and a sedimentation tank connected with the discharging pump, wherein the circulation pipe is divided into a main circulation pipe and an auxiliary circulation pipe; the feeding pump is connected with the main circulation pipe, the upper end of the main circulation pipe is communicated with one side of the evaporation chamber, the lower end of the main circulation pipe is communicated with the lower end of the heating chamber through the forced circulation pipe, and the upper end of the heating chamber is communicated with the other side of the evaporation chamber; and the lower part of the evaporation chamber is communicated with the upper end of the auxiliary circulation pipe, and the lower end of the auxiliary circulation pipe is connected on the forced circulation pipe and communicated with the forced circulation pipe. The evaporator disclosed by the invention has the advantages of preventing the heating chamber of the evaporator from being blocked, effectively improving the production efficiency and reducing energy consumption and power consumption.

The invention relates to the field of cleaning agents, in particular to a car mold PVD stripping solution and a preparing method thereof. The stripping solution is composed of, by mass percent, 10 to30% of sodium permanganate, 10 to 30% of potassium hydroxide and 40 to 80% of deionized water. The strong oxidizing property of the sodium permanganate under the strong environment can be mainly usedfor carrying out stripping treatment on car mold PVD. In the prior art, the grinding manner is commonly used for stripping inland or a stripping solution imported from the Japan is used for stripping;compared with stripping in the grinding manner, the advantage that a mold cannot deform or is damaged is achieved, and compared with the imported stripping solution, the advantage of being high in stripping efficiency is achieved.