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30results about How to "Guaranteed oxidation" patented technology

Three-cycle desulphurization method for wet type ammonia-process desulphurization and flue gas desulfurization tower or system

The invention relates to the field of environmental protection and discloses a three-cycle desulphurization method for wet type ammonia-process desulphurization. The desulphurization method is implemented with a first slurry circulating loop, a second slurry circulating loop and a third slurry circulating loop, wherein in the first slurry circulating loop, slurry having mass concentration of 10%-20% and a pH value of 4.0-5.0 is used for carrying out cycle spraying treatment on flue gas, and the temperature of the flue gas treated by the slurry is 50-60 DEG C; in the second slurry circulating loop, slurry having mass concentration of 10%-15% and a pH value of 5.0-6.0 is used for carrying out cycle spraying treatment on the flue gas; and in the third slurry circulating loop, slurry having mass concentration of 3%-10% is used for carrying out cycle spraying treatment on the flue gas. The invention also discloses a flue gas desulfurization tower or system using the three-cycle desulphurization method. According to the three-cycle desulphurization method, the three independent circulating loops are divided according to the concentration of the slurry, the circulating loops separately control the slurry having different concentrations and pH values for treatment of the flue gas, and the contradiction of high desulphurization efficiency and high oxygenation efficiency of by-products is solved.
Owner:SICHUAN JUNHE ENVIRONMENTAL PROTECTION

Method for rapidly preparing colorful titanium oxide thin film on surface of substrate material

The invention relates to the technical field of film coating, in particular to a method for rapidly preparing a colorful titanium oxide thin film on the surface of substrate material. The method comprises the following steps: at first, a layer of titanium film is sprayed on the surface of the substrate material through the magnetron sputtering technology, then, the substrate material is put into an electrolytic cell which has been set up, the electrolytic cell is filled with electrolyte, the to-be-coated substrate material is put on the cathode, and a stainless steel plate is hung on the anode. Generation and color of the titanium oxide thin film are controlled through changing the voltage of the electrolytic cell, so that the titanium film on the surface of the substrate material generates oxidizing reaction to generate a layer of colorful titanium oxide thin film to protect the titanium film. The electrolyte can be recycled and meets the requirements of environmental protection and industrial production; and in addition, the generated titanium oxide thin film can alleviate abrasion, scratch and contact corrosion of titanium, so that the problems about maintenance and abrasion during the using process of titanium are solved. With adoption of the method, the titanium oxide thin film can be rapidly prepared on the surface of common substrate material, and in addition, the colorof the titanium oxide thin film is easy to control and uniform. The thickness of the titanium oxide thin film prepared through the method is slightly influenced by the material shape.
Owner:SHANDONG UNIV

Vitamin C sodium chloride injection as well as preparation method and application thereof

The invention belongs to the technical field of animal husbandry and veterinary medicine, and discloses a vitamin C sodium chloride injection as well as a preparation method and application thereof. Raw materials for preparing effective components of the injection include vitamin C, sodium chloride, sodium bicarbonate, an antioxidant, a complexing agent and water. The method comprises the following steps: introducing carbon dioxide into the water until saturation, sequentially adding the antioxidant, the complexing agent, the vitamin C, the sodium bicarbonate and the sodium chloride, performing dissolving, adjusting the pH value, fixing the volume, and performing filtering. The injection is used for treating/relieving animal scurvy. Through a large number of experiments, the vitamin C sodium chloride injection with a proper medicinal dosage applied to animals is obtained. The saturated carbon dioxide is introduced, and a certain amount of sodium bicarbonate is added, so that the pH value is kept stable, the vitamin C is effectively prevented from being oxidized, and the problem of maintaining proper doses of vitamin C and sodium chloride in the injection is solved. The injection issuitable for injection of animals suffering from scurvy.
Owner:HEBEI KEXING PHARMA

Curtain wall steel structure mounting method

InactiveCN107143071AGuaranteed lifetime riskRisk of reduced service lifeWallsBuilding material handlingHot-dip galvanizationCombustion
The invention discloses a curtain wall steel structure mounting method. The method includes steps: S1, subjecting a steel material to rust removal and application of high-temperature combustion paint; S2, subjecting the steel material to hot-dip galvanization; S3, determining a steel structure mounting position on the outer surface of a building structure; S4, mounting a buried plate, removing an anti-rust coating on the buried plate, and coating with the high-temperature combustion paint; S5, drawing steel material fixing points on the buried plate; S6, drawing a contact profile on the buried plate after the steel material and the buried plate are fixed; S7, hoisting the steel material to the buried plate; S8, making welding portions of the steel material to be welded to the buried plate; S9, removing a hot-dip galvanized coating at the steel material welding portions, and applying the high-temperature combustion paint; S10, using hoisting equipment for hoisting the steel material to the buried plate; S11, heating the high-temperature combustion paint on the buried plate and the steel material; S12, welding the buried plate and the steel material; S13, adopting anti-rust paint for anti-rust treatment. By adoption of the high-temperature combustion paint for anti-rust treatment of the buried plate and the steel material exposed in a mounting process, steel structure rusting probability is decreased.
Owner:重庆亿金铝业有限公司

A method for rapidly preparing colored titanium oxide thin films on the surface of substrate materials

The invention relates to the technical field of film coating, in particular to a method for rapidly preparing a colorful titanium oxide thin film on the surface of substrate material. The method comprises the following steps: at first, a layer of titanium film is sprayed on the surface of the substrate material through the magnetron sputtering technology, then, the substrate material is put into an electrolytic cell which has been set up, the electrolytic cell is filled with electrolyte, the to-be-coated substrate material is put on the cathode, and a stainless steel plate is hung on the anode. Generation and color of the titanium oxide thin film are controlled through changing the voltage of the electrolytic cell, so that the titanium film on the surface of the substrate material generates oxidizing reaction to generate a layer of colorful titanium oxide thin film to protect the titanium film. The electrolyte can be recycled and meets the requirements of environmental protection and industrial production; and in addition, the generated titanium oxide thin film can alleviate abrasion, scratch and contact corrosion of titanium, so that the problems about maintenance and abrasion during the using process of titanium are solved. With adoption of the method, the titanium oxide thin film can be rapidly prepared on the surface of common substrate material, and in addition, the colorof the titanium oxide thin film is easy to control and uniform. The thickness of the titanium oxide thin film prepared through the method is slightly influenced by the material shape.
Owner:SHANDONG UNIV

Preparation method for nitride fluorescent powder and equipment for same

The invention discloses a method for preparing a nitride fluorescent powder by a high-temperature solid-phase method, and production equipment used for the method. The method comprises the following steps of: (1) detaching raw materials in an oxygen-free and water-free glove box, and mixing the raw materials in a mixing device arranged in the glove box; (2) transferring the mixed raw materials to a reduction furnace via a transition device under nitrogen protection, and solving the problems of other backflows and isolated heat transfer via a transition cabin; (3) calcining at a high temperature in a nitrogen / hydrogen atmosphere by adopting a subsection temperature control method in which three parts, a preheating area, a high-temperature area and a cooling area are formed; and (4) performing aftertreatment on the cooled sample in room-temperature air. By using the method and the equipment, the high-purity nitride fluorescent powder can be manufactured, and the central granularity of the fluorescent powder and the position of an emitting main peak can be controlled by adjusting the calcining temperature and the composition ratio of the raw materials respectively; and with the adoption of three-section calcining, preparation for the nitride fluorescent powder by the method can realize continuous production, thus greatly increasing production efficiency. The method is energy-saving, environment-friendly, and suitable for mass preparation for the nitride fluorescent powder.
Owner:湖南爱德光电新材料有限公司

A test paper for rapid detection of tea polyphenols and its preparation method

The invention discloses test paper for detecting tea polyphenol quickly and a preparation method of the test paper. The test paper for detection comprises a paper base material and a detection layer, wherein the detection layer sequentially comprises a ferrous ammonium citrate or ferrous tartrate reaction layer, a carbon dioxide gas protection layer and a chitosan outer membrane layer from inside to outside. The preparation method comprises steps as follows: the paper base material is soaked in a sodium alginate solution of ferrous ammonium citrate or a sodium alginate solution of ferrous tartrate, subjected to freeze-drying, soaked in a sodium bicarbonate aqueous solution and taken out before ferrous ammonium citrate or ferrous tartrate on the paper base material is dispersed, the surface of the paper base material is covered with a layer of chitosan, the paper base material is subjected to rolling pressing under the pressure ranging from 2,000 Pa to 3,000 Pa and dried in nitrogen, and the test paper is prepared. The test paper for detection can allow users to quickly and sensitively detect the content of tea polyphenol in a semi-quantitative product with naked eyes, the detection result has higher accuracy and sensitivity, and the test paper can help consumers to judge the quality of products correctly when the consumers purchase the products containing tea polyphenol.
Owner:CHONGQING UNIV +2

Solar water quality improving machine

The invention provides a solar water quality improving machine. The solar water quality improving machine comprises a solar power assembly, a bottom layer flocculent sludge absorption and discharge assembly, floaters, and a moving and controlling assembly, wherein the floaters are respectively used for bearing the solar power assembly and the bottom layer flocculent sludge absorption and discharge assembly; and the two floaters are integrally connected into a whole through a connection rod. According to the solar water quality improving machine provided by the invention, the solar power assembly, the bottom layer flocculent sludge absorption and discharge assembly and the like are assembled together by using solar photovoltaic power; flocculent bottom mud at a bottom layer of a water body is absorbed and discharged to a surface layer of the water body by using the solar photovoltaic power; the discharge amount of flocculent sludge at the bottom layer is controlled by using the illumination as a condition index, so that the sedimentation of the bottom mud of the water body is reduced; organics decomposition and nutrient release in the sludge can be promoted; the nutrient balance of the water body is adjusted; the water quality is improved; the sedimentation pollution is reduced; and the level of productive capacity of the water body is improved.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI

Method for rapidly oxidizing oxalic acid

The invention belongs to the technical field of spent fuel post-treatment of plutonium tail ends, and particularly relates to a method for rapidly oxidizing oxalic acid. Nitrous acid is produced in a manner of quantitatively introducing nitrogen oxide into feed liquid. The characteristic that the oxidation power of nitrous acid in a dilute solution is stronger than that of nitric acid is utilized, oxidation of oxalic acid is accelerated, the addition of potassium permanganate and high-temperature heat preservation conditions are not changed, and the original catalytic action of divalent manganese is still kept on the premise that the introduction amount of metal ions is not increased, so that the reaction rate is maximized. Various parameters are determined through a control variable method experiment, and the parameters should meet engineering application requirements. In consideration of adaptability of engineering application of a post-treatment plant, existing parameters are adopted: the flow rate of nitrogen oxide is 3.325-3.675 L/h. The parameters are matched with the actual working conditions of the on-site nitrogen oxide device and the acid adding and seasoning operation. The target of shortening the reaction time to one third of the original reaction time is achieved, and the introduction amount of metal ions is not increased on the basis of the original design.
Owner:THE 404 COMPANY LIMITED CHINA NAT NUCLEAR

Electromagnetic fluid reaction device

The invention discloses an electromagnetic fluid reaction device comprising an electromagnetic generator and a multi-stage reactor arranged in an electromagnetic reaction cavity, wherein the electromagnetic generator transmits electromagnetic waves to the electromagnetic reaction cavity to generate an electromagnetic field so that the electromagnetic field acts on a fluid passing through the multi-stage reactor; the multi-stage reactor comprises more than one fluidized bed body sequentially connected end to end, a feed port is arranged on the first fluidized bed body, a discharge port is correspondingly arranged on the final fluidized bed body, the fluidized bed bodies are connected with medicament ports, and the inner part of each fluidized bed body is loaded with a solid fluidized medium. The invention can promote the oxidation, reduction and decomposition reaction of the fluid, which specifically comprises the following steps of: continuously adding electromagnetic energy in the fluid, enabling the matter molecules of the fluid to continuously generate partial and instant high temperature and high voltage through the solid fluidized medium, and then promoting the oxidation, reduction and decomposition reaction of the fluid through the fluidized bed bodies so as to achieve the purposes of reducing cost and improving efficiency. The invention has wide market prospects in the field of environmental protection.
Owner:胡德录 +3

Integrated marine seawater wet desulfurization washing tower

The invention discloses an integrated marine seawater wet desulphurization washing tower which comprises a tower body, a gas inlet mechanism, a washing mechanism and a discharge mechanism, a liquid inlet pipe is arranged on the outer side surface of one side of the tower body, a plurality of liquid guide pipes are arranged on the side surface of one side of the liquid inlet pipe, the gas inlet mechanism is arranged on the tower body, the gas inlet mechanism is composed of a first mounting plate, an air compressor, an air guide pipe, a mixing box, a spiral pipe, an air inlet pipe and a connecting pipe. The tower is simple in structure, waste gas can be uniformly and fully mixed with introduced oxygen, CaSO3 is ensured to be oxidized into CaSO4 (gypsum), the subsequent washing effect is improved, during washing, slurry is subjected to quantitative multi-stage washing and is matched with mixing and stirring, so that mixed gas is fully contacted with the slurry, the desulfurization efficiency and the slurry absorbent utilization rate are higher, and subsequent treatment cost is prevented from being increased due to generation of more wastewater; meanwhile, through cooperation with rotation in the mixing and stirring process, precipitates separated out by CaSO4 crystallization can be scraped out, and blockage in the device is prevented.
Owner:江苏远东船舶工程技术有限公司
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