311results about How to "Reductive" patented technology

The invention discloses a method for hydro-thermally synthesizing a MoS<2> nanoflower with a sulfur-containing biological reagent as a sulfur source. The method comprises the following steps of adding molybdate and L-cysteine or glutathione to deionized water separately for forming a uniform solution, wherein the concentration of the molybdate is 0.002-0.03 M, the mole ratio of S to Mo in raw materials is 4 to 1-2 to 1, and adjusting the pH value of the solution to be 1-7 with hydrochloric acid or ammonia water; shifting the compounded solution to a hydro-thermal reaction kettle with the volume being 100 ml for seal, and conducting a hydro-thermal reaction for 18-36 hours at the temperature of 180-220 DEG C; after the solution is cooled naturally, conducting suction filtration, washing and drying, and obtaining the MoS<2> nanoflower with slice layers accumulated and the surface rough. A MoS<2> product synthesized through the method is at the nanoscale in dimension, is good in dispersion property and has wide application on the aspects of electrode materials, solid lubricant and particularly oil product hydrogenation catalysis.

The invention discloses a palladium / graphene nano electro-catalyst which takes graphene as a carrier and palladium as an active component, wherein the mass fraction of the palladium in the catalyst is 10 to 40 percent. A preparation method of the palladium / graphene nano electro-catalyst comprises the following steps of: (1) ultrasonically dispersing graphite oxide nano sheets in liquid polyalcohol, then adding a palladium salt solution and a sodium acetate solution, and fully and evenly mixing, wherein the content of the graphene oxide nano sheets in the mixture is 0.48 to 1.3g / L, the concentration of palladium salts is 0.0005 to 0.005mol / L, and the sodium acetate concentration is 0.0033 to 0.012mol / L; and (2) transferring the mixture into a microwave hydro-thermal reaction kettle, carrying out microwave heating and reacting for 5 to 10 minutes, then filtering, washing and drying to obtain the palladium / graphene nano electro-catalyst. The preparation method has the advantages of energy saving, high speed, simple process, and the like; and palladium nanoparticles in the prepared palladium / graphene nano electro-catalyst have even particle sizes. The catalyst has high electro-catalysis activity to formic electrooxidation and has wide application in fuel cells.

The invention discloses a stripping processing method of textile printing defective items, which implements stripping processing on printing defective items and particularly on dyeing defective items by using an active material which is generated by initiating and catalyzing an oxidant or a reducing agent under ultraviolet light and low temperature and has strong oxidability or reducibility as a stripping agent so as to be convenient for the rehandling or redyeing of textiles. Because of the adoption of various active materials which are generated by ultraviolet light initiation and optical catalysis as the stripping agent, the method can obtain an approving stripping effect under normal pressure and temperature, thereby avoiding the consumption of a large amount of energy sources in a traditional high-temperature stripping method and the use of a large amount of reducing agent, oxidant and the like. The stripping technology of the invention has the advantages of high efficiency, energy saving, emission reduction, simple equipment and process and short procedures.

The invention relates to nutritional beef dried meat with high bone calcium and a making method thereof, belonging to a nutritional food and a processing technology thereof. The nutritional beef dried meat is formed by preparing and processing raw materials comprising ground beef, a curing agent, cattle bone powder fermentation liquid, corn starch paste, a compound coagulant, a flavoring agent and auxiliary materials according to a certain mixture ratio and a certain production technology. The product contains high calcium, high protein, abundant nutrition, delicate mouth feel, moderate rigidity, no residue after being chewed, special flavor, good and savory taste and thick aftertaste and adds a new variety of beef dried meat.

The invention discloses an advanced oxidative coupling device and process for treating organic wastewater difficult to degrade. A main device body comprises an ozone oxidation-multi-dimensional electro-catalysis / microelectrolysis area, an ozone oxidation-microelectrolysis / Fenton area, a coagulation area and an inclined plate sedimentation area, wherein the ozone oxidation-multi-dimensional electro-catalysis / microelectrolysis area comprises a multi-dimensional electrolysis / microelectrolysis area at the upper part and an ozone oxidation area at the lower part; the ozone oxidation-microelectrolysis / Fenton area comprises a microelectrolysis / Fenton area at the upper part and an ozone oxidation area at the lower part. The device combines four levels of advanced oxidation systems, and electrocatalytic oxidation, ozone oxidation, Fenton oxidation and a microelectrolysis reaction are mutually coupled in function, so that an organic matter difficult to degrade is subjected to multi-level oxidation to realize complete oxidative cracking; when the device is used for treating the organic wastewater difficult to degrade, the yield and the production rate of *OH are increased, the liquid phase transfer process is accelerated, the overall current efficiency of the device is increased, operation expenses are saved, flexible regulation and control of a process unit are realized, and the device can be used for treating various kinds of organic wastewater difficult to degrade.

The invention discloses a method for detecting a single molecule of a single silicon nanowire in real time based on a surface enhanced raman scattering (SERS) effect. The method comprises the following steps of: 1) dispersing the silicon nanowire of which a surface oxide layer is removed in aqueous solution of cetyltrimethyl ammonium bromide (CTAB), adding metal silver ion-containing solution into dispersion of the silicon nanowire under stirring, reacting for a period of time, centrifuging a product and collecting precipitates, and dispersing the obtained silicon nanowire on which the surface is loaded with silver particles in ethanol; and 2) dropwise adding ethanol dispersion of the silicon nanowire into a groove of a glass slide with the groove, adding aqueous solution of molecules to be tested into the groove after ethanol is volatilized, sealing the groove by using cover glass, irradiating the silicon nanowire at the groove by using laser of a certain wavelength, and collecting araman signal to realize real-time detection of the single molecule. The method is simple and fast and has a mild reaction condition, the prepared material has stable performance and higher SERS response, the detection of the single module in a solution system is realized, and a good platform is provided for researching the reaction of the single module in the solution system.

The invention discloses an antioxidation method of nano copper powder, which comprises the steps of: preparing an organic acid aqueous solution the mass concentration of which is 0.1 to 2 percent and controlling the pH within the range of 1 to 5; adding copper powder into the organic acid aqueous solution, mixing continuously, then standing for a certain time, and filtering the supernatant liquor; preparing copper powder anticorrosive solution the mass concentration of which is 0.1 to 2 percent; adding copper powder pulp into the copper powder anticorrosive solution, fully mixing, standing, filtering the supernatant liquor, and obtaining the copper powder pulp; carrying out metathesis on the copper powder pulp for 2 to 4 times by utilizing an organic solvent, and then classifying the copper powder pulp; weighing alcohol-soluble organic the weight of which is 0.1 to 5 percent of that of the copper powder in the copper powder pulp, dissolving the alcohol-soluble organic into an alcohol solvent, preparing a copper powder anticorrosive solution the concentration of which is 0.25 to 5 percent, and adding the obtained copper powder pulp into the copper powder anticorrosive solution and mixing for 0.5 to 2 hours. By the antioxidation method of nano copper powder, a layer of protective film can be covered on the surface of the nano copper powder and effectively isolate oxygen, thus the purpose of antioxidation of copper powder is achieved.

The invention discloses a metal loaded biomass semicoke catalyst and a preparation method thereof. The preparation method comprises the following steps: carrying out equivalent-volume impregnation ona biomass precursor by adopting an aqueous solution of metal active component soluble salt, drying, then heating to the temperature of 600-700 DEG C, and carrying out pyrolysis, so that the metal loaded biomass semicoke catalyst loading metal active components on a biomass semicoke carrier is obtained. The metal active components comprise a reactive metal Ni and a second reactive metal composed ofone of reactive metals Fe, Co and Cu, Ni accounts for 5-30% of the mass of the catalyst, and the second reactive metal accounts for 2-10% of the mass of the catalyst, and the balance is the biomass semicoke catalyst generated through biomass pyrolysis. The catalyst disclosed by the invention has large specific surface area and high dispersity of the metal active components, is used for catalyzinga tar water vapor reforming process of a biomass gasification technology and is high in tar conversion rate.

The invention discloses an electrolyte corrosion inhibitor for an aluminum-air cell, an electrolyte and a preparation method, belonging to the technical field of chemical batteries. The electrolyte corrosion inhibitor mainly comprises sodium hyposulfite which has a concentration of 0.005 to 0.2 mol / L in the electrolyte and may further comprise the auxiliary additive sodium stannate which has a concentration of 0.01 to 0.03 mol / L in the electrolyte. The aluminum-air cell provided by the invention has the advantages of simple composition, low cost, safety and accordance with environmental protection requirements, can substantially reduce the hydrogen evolution self-corrosion rate of an aluminum anode, enables the open circuit potential of the aluminum anode and working potential under the condition of impressed current to undergo substantial negative transfer, allows an aluminum anode alloy to have good corrosion resistance and high electrochemical activity and meets the requirement of an alkaline aluminum-air cell for large current density discharging.

The invention discloses a graphene / Ru nano-composite material for a supercapacitor. The mass fraction of Ru is between 10 and 50 percent, and the mass fraction of graphene is between 90 and 50 percent. A preparation method comprises the steps of: ultrasonically dispersing oxidized graphite nano-plates into liquid polylol, and then adding solution of ruthenium chloride and solution of sodium acetate into the liquid polylol, wherein in the mixture, the content of the oxidized graphite nano-plates is between 0.5 and 1.5g / L, the concentration of the ruthenium chloride is between 0.0008 and 0.006mol / L, and the concentration of the sodium acetate is between 0.003 and 0.013mol / L; and transferring the mixture into a microwave hydrothermal reaction kettle, performing a microwave heating reaction for 5 to 10 minutes, and then obtaining the graphene / Ru nano-composite material through filtration, washing and drying. The preparation method has the advantages of energy conservation, quickness, simple process and the like; and the graphene / Ru nano-composite material which is taken as an electrode material of an electrochemical supercapacitor has high specific capacitance.

The invention discloses an electroslag remelting method for high-purity austenite nitrogenous stainless steel for nuclear power. The method comprises the following steps: (1) selecting a cylindrical metal electrode for electroslag; (2) treating the metal electrode by adopting a machining method; (3) carrying out welding treatment and heating treatment on the metal electrode and a stainless-steel false electrode for the electroslag; (4) carrying out slag melting treatment by selecting a slag system which contains 50%-60% (by weight) of CaF2, 15%-25% (by weight) of Al2O3, 10%-20% (by weight) of CaO, 5%-10% (by weight) of MgO and 3%-6% (by weight) of SiO2; (6) carrying out feeding treatment; (7) carrying out die cooling. According to the austenite nitrogenous stainless steel prepared by the method, the forming of a steel ingot surface is good, and the inclusion content is low and can reach that the inclusion content of a coarse series of a class A is not higher than 0.5, the inclusion content of a fine series of the class A is not higher than 0.5, the inclusion content of a coarse series of a class B is not higher than 0.5, the inclusion content of a fine series of the class B is not higher than 0.5, the inclusion content of a coarse series of a class C is not higher than 0.5, the inclusion content of a fine series of the class C is not higher than 0.5, the inclusion content of a coarse series of a class D is not higher than 0.5, and the inclusion content of a fine series of the class D is not higher than 1.0.

The invention relates to a method for preparing arborization fine copper powder in an electrolysis mode and belongs to the technical field of preparing nonferrous metal hydrometallurgy and metal powder materials. Firstly, choline chloride and urea are used for preparing eutecticevaporate solvent type ionic liquid, an additive is added into the eutecticevaporate solvent type ionic liquid and an electrolyte is prepared; pure copper serving as an anode and a titanium sheet serving a cathode are added into the obtained electrolyte to be electrolyzed for 30-120 minutes, namely arborization fine copper powder is obtained on the cathode; the obtained arborization fine copper powder is taken off the cathode, cleaned and dried through vacuum and arborization fine copper powder with the granularity ranging from 1-10 microns is obtained. By means of the method for preparing the arborization fine copper powder in the electrolysis mode, cuprous oxide does not need to be added into the ionic liquid, the arborization fine copper powder can be obtained through direct electrolysis, a reagent and the technology are simpler and the current efficiency is high in the electrolytic process.

The invention belongs to the field of nano-material preparation, and provides a simple and novel preparation method for silver and gold nano-particles. The preparation method comprises the following steps of: taking silver acetate, silver nitrate and chloroauric acid as precursor preparation raw materials, taking a sulfonic acid surfactant as a reducing agent and a protecting agent, adjusting the pH value of a preparation system by adding substances of sodium carbonate or ammonia water and the like, and heating the reaction system in a certain temperature range to obtain the silver and gold nano-particles. The product obtained by the method provided by the invention has the characteristics of being uniform in particle size, good in dispersibility and stability, and the like; moreover, the sulfonic acid surfactant is low in price and easy to get, the production process is simple and low in cost; the method is another new preparation way for preparing the silver and gold nano-particles.

The invention provides a method for measuring nickel content in low alloy steel by spectrophotometry. The method comprises the steps of: (1) dissolving a sample; (2) adding a proper amount of perchloric acid till smoking, and adding distilled water so as to obtain a solution a: (3) adding potassium sodium tartrate and ammonium citrate into the solution to serve as dual masking agents; (4) adding a strong base, then adding ammonium persulfate as an oxidizing agent, and then adding a dimethylglyoxime developer so as to react with nickel to generate a red chelate; (5) conducting measuring: zeroing the solution obtained in step (4) with a reference solution, carrying out color comparison at a position of 530nm on a spectrophotometer, thus measuring absorbance A1; (6) calculating the nickel content according to the absorbance A1. By applying dual masking agents, the method of the invention substantially improves the accuracy and precision of a measured result on the basis of guaranteeing rapid measuring.

The invention belongs to the technical field of photocatalysts and specifically relates to a preparation method of a visible-light-driven photocatalyst Fe3O4@PDA@Ag composite microsphere. The preparation method comprises step 1 of respectively dissolving ferric chloride hexahydrate and sodium acetate into equivalent ethylene glycol, then evenly mixing and stirring two solutions, adding a 10 to 30wt% polyacrylic acid solution to continue stirring for 6 to 12h, putting into a reaction kettle, heating to 180 to 210 DEG C and keeping reaction for 4 to 12h to obtain a black product of ferroferric oxide; step 2 of dispersing the ferroferric oxide into an ethanol solution of polyvinyl pyrrolidone, then adding a water solution of dopamine hydrochloride, performing water bath and fully and ultrasonically dispersing to obtain a mixed solution b; step 3 of dropwise adding ammonium hydroxide into the mixed solution b, continuing ultrasonic reaction for 2 to 5 hours to obtain Fe3O4@PDA composite microspheres; step 4 of adding the prepared Fe3O4@PDA composite microspheres into ammonium hydroxide and silver nitrate to be prepared into a tollens' reagent, putting in a table concentrator to be vibrated for 8 to 16hours, performing magnetic separation and performing aftertreatment to obtain the Fe3O4@PDA@Ag composite microspheres. The Fe3O4@PDA@Ag composite microspheres have an obvious effect on degrading methyl orange and can be used repeatedly.

The invention relates to a functional material for preparing multifunctional healthy running water and a preparation method thereof. The functional material consists of an ingredient A and an ingredient B, wherein the ingredient A is made by preparing powdered tourmaline, ferriferrous oxide, zinc, cuprum, magnesium, ferrum and manganese and bonding auxiliary material into pieces by a special device at low temperature, and the ingredient B is made by preparing medical stone, muyu stone, meijiu jade, sepiolite, biotite, slag, calcium sulfite and pottery clay into ion complex by means of shaping and high-temperature sintering. The ingredient A is prepared by the following steps that: the materials are weighted in proportion and then mixed, heated, cooled and ball-milled and pulverized into micron-sized powder successively; an adhesive is added into and mixed with the mixed powder after ball milling; then the mixture is prepared into pieces by means of a punch; the black pieces are delivered into a heater at constant temperature; thus the products are cooled and packed for use. The ingredient B is prepared by the follow steps that: the materials are weighted in proportion and are uniformly mixed one by one; an adhesive is added into and mixed with the mixture into blocks; the blocks are poured into a tablet press to be made into pieces; and the pieces are dried and sintered in a special sintering furnace, thereby producing the required products. Water processed by the material for multifunctional healthy running water does not contain toxic and harmful substances and has no odor and good taste; the water has moderate hardness and contains minerals and microelements required by a human body; the water is weakly alkaline and micro-clustered; the oxidoreduction potential of the water is lowered to be a negative value between -200 and -550 MV; and the nutritional function of the water is strong.

The invention relates to a composite light absorption layer of a perovskite solar cell and a preparation method thereof, wherein the composite light absorption layer is formed by a three-dimensional perovskite type light absorption material film and a novel two-dimensional perovskite type light absorption material film. A light absorption layer skeleton is coated with the three-dimensional perovskite type light absorption material film; and the three-dimensional perovskite type light absorption material film is coated with the two-dimensional perovskite type light absorption material film to form a hole transport layer. The two-dimensional perovskite type light absorption material film is made of NMX4, wherein the N is one of thiourea, 2,5-Dithiobiurea, thiocarbohydrazide, or beta-aminoethyl isothiourea, the M expresses Pb<2+>, Sn<2+>, Ge<2+>, Cu<2+>, Ni<2+>, Mn<2+>, Zn<2+>, Fe<2+>, Sb<3+>, and Bi<3+>, or a mixture; a, and the X represents a CI<->, Br<->, I <->, or a mixture. According to the invention, with the perovskite composite light absorption layer, the photoelectric conversion efficiency is stabilized and improved.

The invention discloses a semi-synthetic metal wire drawing lubricant liquid, which comprises base oil, an oiliness agent, a cooling agent, an antirust agent, a compound emulsifier, an extreme pressure agent, an additive and deionized water. According to the semi-synthetic metal wire drawing lubricant liquid disclosed by the invention, the defects in the prior art are overcome; the drawing speed can be increased; the abrasion of a drawing mold is reduced; the breeding of bacteria is inhibited; the lubrication in the drawing process is ensured; the surface smoothness of a product is improved; the semi-synthetic metal wire drawing lubricant liquid is especially suitable for rapid drawing of nonferrous metals; and the oxidation of the nonferrous metals can be well prevented by a protective film formed in the drawing process.

The invention belongs to the technical field of the energy and chemical industry and particularly relates to a nickel-based steam reforming catalyst for biomass tar and a preparation and application method of the catalyst. The catalyst adopts low-cost brown coal as a carrier and comprises the following components by weight percent: 23-25% of Ni, 64.26-66.26% of C, 6.06% of O and 6% of impurity elements. The catalyst is prepared by adopting the cooperation of an ion exchange method and an impregnation method. The catalyst has the good activity and economy, the brown coal is low in cost and large in specific surface area, after being washed by sodium hydroxide, micropores of the brown coal become mesopores and macropores, so that macromolecular compounds of the tar are relatively easy to pass; simultaneously, a relatively large quantity of new through holes are also formed in the brown coal; in the process of catalytic reformation of the tar, a relatively large quantity of effective pore channels are formed, so that the efficiency for reforming the biomass tar is relatively high; the carbon deposited amount of the catalyst and the carbon consumption amount of catalyst carrier carbon can form dynamic balance, so that the service life of the catalyst is prolonged and the catalyst is not easily inactivated.

The invention discloses a preparation method of carbon-coated ferroferric oxide nanometer core-shell microspheres for a lithium battery. The method comprises the following steps: preparing nanometer ferroferric oxide microspheres with uniform particle size distribution with a simple solvothermal method, wherein the nanometer ferroferric oxide microspheres are taken as a core source, and meanwhileresin is taken as a carbon source; coating the core source and the carbon source with carbon in a grinding way; and carrying out the processes of curing, carbonization and the like to prepare the carbon-coated ferroferric oxide nanometer core-shell microspheres. The microspheres are applied to a negative electrode material of the lithium battery as an electrode material. The method has the advantages of simple process, adoption of cheap and readily-available raw materials and easiness in realization of industrial production.

The invention discloses a process for preparing an LiFePO4 / C composite cathode material by a precursor in-situ polymerization-carbothermic process. The process comprises that a phosphate group compound and a ferric iron source compound are dissolved in water in a mole ratio of (1-1.1):1, then an organic monomer is added, an oxidizing agent is added to oxidize and polymerize the monomer which coats a generated iron phosphate surface, the pH of a solution system is controlled to be between 1.5 and 3, a precipitate is washed, cleaned, then subjected to ball mill mixing with a lithium source and roasted in protective gas, and then the LiFePO4 / C composite cathode material is obtained. Polymer which coats the iron phosphate surface is pyrolyzed and carbonized into carbon reduction ferric iron, serves as a carbon source in a roasting process and facilitates limiting of agglomeration of microscopic particles of the material. According to the LiFePO4 / C composite cathode material prepared by the process, the primary particle size of the material is nanoscale, and the material is good in electrical conductivity and performance under conditions of high multiplying power and large current charging and discharging and has large specific capacity.

The invention relates to roselle beverage which comprises the following components in percentage by weight: 50-55% of roselle juice, 0.4-0.5% of fructo-oligosaccharide, 5-6% of high fructose corn syrup, 0.7-0.8% of xylitol, 0.2-0.3% of citric acid, 0.01-0.05% of stevia rebaudiana, 0.02% of nisin and the balance of water, wherein the roselle juice is prepared by extracting a roselle mixture composed of dried roselle, dried smoked plum, dried hawthorn and dried liquorice; the roselle mixture comprises the components in percentage by weight: 96-99% of dried roselle, 0.4-1% of dried smoked plum, 0.05-0.5% of dried hawthorn and 0.05-0.5% of dried liquorice. The roselle beverage is prepared through the following processes of: mixing, boiling, filtering, sterilizing, canning and sealing. The roselle of the invention contains more hibiscus acid and roselle saponins which not only have antioxidant and health care effects for eliminating free radicals and keeping youth, but also have physiological functions of lipid-lowering and anti-aging or the like. By utilizingthe roselle beverage disclosed by the invention, the medicinal effects of roselle are given into full play, and the effects of the roselle for removing radicals, skin care and keeping youth are enhanced. The roselle beverage has the advantages of easily available raw materials, simple process, convenience in drinking, no toxic or side effect, and the like.

The invention relates to a method for improving electrochemical performance through reducing graphene oxide (GO) by using a hydrogen (H2) and argon (Ar) mixed plasma. The method comprises the following steps of spin-coating GO on ITO (Indium Tin Oxide) conducting glass, drying, then, placing the ITO conducting glass into a plasma discharge chamber, wherein a graphite electrode is connected to the inside of the discharge chamber, and the electrode is connected with a radio-frequency alternating-current power supply capable of generating an inductive coupling plasma source; before discharging, introducing Ar, expelling air, then, starting a vacuum pump to vacuumize to about 2Pa, and introducing H2 and Ar mixed gas; when the total gas flow of H2 and Ar is 3sccm, and the flow ratio of H2 to Ar is 2 to 1, turning on the alternating-current power supply to generate a H2 and Ar mixed plasma, wherein the power of alternating current is 70w; directly acting the plasma flow on a GO film, and discharging for 5min to obtain a reduced graphene oxide (rGO) film. The method is not only capable of effectively reducing GO, but also is rapid, efficient, green and free of introducing impurities. The prepared rGO film is used as an electrode material, and the specific capacity of the rGO film is 211.8F / g which is higher than the specific capacity of rGO obtained by using other reducing methods.

The invention belongs to the technical field of bacterial fermentation and functional bacteria screening, and discloses a caproic acid bacterium proliferation culture medium and a caproic acid fermentation and caproic acid bacterium screening method. The proliferation culture medium comprises 10.0 g / L of peptone, 10.0 g / L of beef powder, 3.0 g / L of yeast powder, 1.0-5.0 g / L of glucose, 1.0 g / L ofsoluble starch, 5.0 g / L of sodium chloride, 3.0-6.0 g / L of sodium acetate, 0.5 g / L of cysteine hydrochloride, 0.3-1.0 g / L of ascorbic acid, 0.5-2.0 g / L of agar and distilled water composition. Nutrients such as 0.005-0.01 g / L of hemin are selectively added, so that the growth and division of some extreme bacteria are facilitated, the cell density is increased, and the screening range of caproic acid bacteria is expanded. Ethanol and sodium butyrate are added midway to promote the synthesis of hexanoic acid. A fermentation container is transparent, and fermentation liquor is preliminarily screened according to the conditions of gas production and acid production in the fermentation liquor, so that the screening efficiency is improved.

The invention discloses a method for producing nanometer humus refined powder. The method for producing nanometer humus refined powder comprises the following production steps: raw material treatment: crushing brown coal into fine particles with a grain size smaller than 16 meshes through a crusher, then drying the fine particles to water content of 9 to 13 percent by using cold drying, and performing filtration and screening for future use; proportioning treatment: mixing brown coal with reagent according to a ratio of 100:1, and putting the proportioned materials into a grinder; grinding treatment: grinding the proportioned materials to a nanometer scale by using a planetary trajectory ball-milling equipment with balls and a cylinder which are made of special materials, emit less heat and dissipate heat quickly, so as to change molecular structures and generate nanometer humus medium powder in a machine body; packaging treatment: settling, outputting and packaging the nanometer humus powder to obtain the nanometer humus refined powder disclosed by the invention. The nanometer humus refined powder obtained through the method can be used for conditioning soil activity, controlling saline-alkali soil and sand soil, controlling heavy metal pollutants in soil, reducing radioactive contamination and purifying sewage.

The invention relates to slag washing materials for converter steel-making and a preparation method and a using method thereof. The common exothermic steel slag washing materials for the converter steel-making comprise a main calcium aluminate slag system and an exothermic compound, wherein the main calcium aluminate slag system is produced by calcination of limestone and bauxite materials at the temperature of between 1,200 and 1,800 DEG C. The slag washing materials comprise the following compositions as calculated by the total weight of the slag washing materials: 0 to 60 percent of CaO3, 20 to 45 percent of Al2O3, 1 to 15 percent of metallic aluminum, 1 to 8 percent of the exothermic compound, less than or equal to 10 percent of SiO2 and less than or equal to 0.5 percent of S. The invention also discloses a method for preparing the slag washing materials and a method for using the same. The slag washing materials can react quickly and have better deoxidation and desulfurization effect. Moreover, partial deoxidizing materials are saved and the production cost of steel enterprises is reduced.

The invention belongs to the technical field of preparation of promoters for high polymer materials and particularly relates to a preparing method for a multifunctional and efficient beta nucleating agent for isotatic polypropylene materials. It is indicated that polydopamine can be used in the polypropylene beta nucleating agent. The multifunctional and efficient beta crystal nucleating agent is high in nucleating efficiency, good in compatibility with polypropylene matrixes, simple in preparing method and capable of improving the thermal oxidation stability of polypropylene materials.

The invention discloses a method for preparing grapheme platinum nanocomposite material by using argon plasma. The method comprises the steps of: putting graphene oxide into a beaker, then adding chloroplatinic acid, drying the obtained mixture, then putting the mixture into a sealed container, wherein the container is connected with a graphite electrode, the electrode is connected with alternating current power supply, and the power supply can generate an inductive coupling plasma source; introducing argon into the container, removing air, then opening a vacuum pump to vacuumize until the vacuum degree is about 3Pa; opening the alternating current power supply to generate the argon plasma, enabling the plasma flow directly to act on the surface of the dried powder for 28-32 minutes, fully washing, filtering and drying the reaction product by deionized water and proper organic solvent to prepare the grapheme platinum nanocomposite material. According to the method, not only can uniformly distributed grapheme platinum nanocomposite material be prepared effectively, but also the preparation time is shortened greatly, and the process is simplified.

The invention discloses an air purifying agent and a preparation method thereof. The air purifying agent is prepared from the following raw materials in parts by weight: 25 to 30 parts of sepiolite, 15 to 35 parts of attapulgite, 10 to 15 parts of active carbon, 8 to 12 parts of diatom ooze, 25 to 35 parts of urea, 8 to 10 parts of propylene glycol carbonate, 15 to 20 parts of an oxidant, 11 to 18 parts of itaconic acid, 15 to 20 parts of a plant extracting solution, 2 to 6 parts of a surfactant and 15 to 28 parts of de-ionized water. The air purifying agent disclosed by the invention has the advantages of simple preparation method and low cost, is used for efficiently decomposing various harmful gas in the air and has a relatively good effect of purifying air; the plant extracting solution has a reducing property and can be subjected to oxidation-reduction reaction with formaldehyde with oxidizability and the concentration of the formaldehyde is reduced.

The invention relates to a kind of high-powered material and the preparation method, especially it is a kind of self gleamy material which spreas of itself to compose department of alumnic acid. the craft follows this, first dispense the amotate liquor of finite concentration using Eu2O3, Dy2O3 and SrCo3, then mix the liquor with Al(NO3) in finite concentration, after add quantitative additive liquor and carbamide to produce compounded liquid, heat up it above the electric fire, later, observe it till loose spumescence outcome appears, cool the outcome maturely in room temperature, porphyrize it thus product is ok. Compared with the traditional art of solid phase reaction in high temperature, the art has many advantages, for example, it saves energy and has long time and brightness of afterlight. Even using it in exterior for long time, it is not ratioactive and environmental.