106results about How to "The production is conducive to" patented technology

The invention relates to a method for improving the selectivity and reaction stability of an arene product prepared in a methanol aromatization manner, and is used for preparing the arene in the methanol aromatization manner through the catalysis of a molecular sieve under the action of a carbon dioxide reaction medium. The method comprises the following steps: under the action of the carbon dioxide medium, by taking methanol as a raw material, preparing the arene in the methanol aromatization manner through a molecular sieve based catalyst containing a metal additive under the conditions that the reaction temperature ranges from 340 to 540 DEG C, the methanol reaction airspeed is maintained for 0.1 to 5.0 hours, the reaction pressure ranges from 0.1 to 5.0MPa and the molar ratio of the carbon dioxide to the methanol is 0.5-5.0 (mol/mol). According to the method, a large quantity of excess greenhouse gases, namely the carbon dioxide, serve as the reaction medium; the molecular sieve containing the metal additive serves as the catalyst, so that the selectivity and reaction stability of the arene in a methanol aromatization product are improved effectively. Thus, the method meets the requirement of an industrial application basically.

The invention provides a method for treating poor-tin middling ore and recovering an iron-making raw material. The method comprises the following steps: adding an alkalinity modifier, a reducing agent and a chlorinating agent in the ore material for mixing so as to form a mixed material, and then pelletizing, wherein the alkalinity modifier is silicon-rich ore or quartziferous ore, the mass ratio of CaO/SiO2 in the mixed material is controlled to not more than 0.65, and the mass percentage of total SiO2 is not more than 10%; carrying out high temperature chloridizing roasting on pelletized aggregate pellets, wherein chloridizing roasting conditions are as follows: the addition amount of the chlorinating agent accounts for 4-8% of that of the aggregate pellets, and the addition amount of the reducing agent accounts for 3-5% of that of the aggregate pellets, and roasting temperature is 950-1100 DEG C; controlling the volume ratio of CO2/CO in the atmosphere to 1.0-3.0 in the roasting process; and carrying out cooling and dust collection on high-temperature smoke generated by chloridizing roasting, and then capturing and recovering valuable metals. By using the method in the invention, tin and other valuable metals are economically and efficiently extracted from the poor-tin middling ore and the iron-making raw material is recovered so as to finally achieve good effects as follows: (1) the extraction rate of the valuable meals in the poor-tin middling ore is improved; (2) the efficiencies of arsenic removal and iron-making material recovery are improved; (3) production capacity of equipment is improved, and energy is saved; and the like.

The present invention relates to a tin-antimony oxide conducting film and its production method. Said film contains (wt%) 80%-96% of tin dioxide and 4%-20% of antimony pentoxide, their grain size diameter is 10-20 nm, and thickness is 80-180 nm. Its production method uses aqueous solution of SnCL4 and SbCL3 ethyl alcohol solution as raw material and includes the following steps: using amkmonia water to make precipitation, using oxalic acid and ammonia water to make back-solvation, concentration, preparing sol-gel, ageing, high-temp. spraying on silex glass for tin-antimony oxide conducting film with high conductivity and light transmittance, and high heat exchange efficiency.

The invention provides a titanium-based beta-MnO2 composite coating anode and a preparation method thereof. The anode comprises a titanium cladding copper conductive beam (1) which is provided with aconductive head (4), a titanium net plate (2) which is welded on the lower surface of a copper conducting beam, and silicon rubber cases (3) which sleeve two ends of the titanium cladding copper conductive beam, wherein the titanium net plate (2) comprises a titanium net base body, a gradient Ru-Ti-Sn-SbOx intermediate layer which coats the surface of the titanium net base body, and a beta-MnO2 composite surface activation layer which coats the surface of the intermediate layer. Compared with a traditional titanium-based heavy metal coating anode, the prepared anode has the advantages that theconductivity is obviously improved under the basis that an electrolytic cell structure, an electrolyte composition and operation regulations remain; the cell voltage can be reduced by 0.1V; the material cost can be decreased by 40%; the current efficiency can be increased by 1-3%; the shortage of high cost of a heavy metal oxide coating is overcome; and the anode can be widely applied to the electrolytic industry.

The invention discloses a modification treatment method of ZSM-5 zeolite. The method comprises the following steps of: adding a certain proportion of aqueous alkali and a low molecular weight organic solvent into ZSM-5 zeolite, performing ultrasonic treatment on the system, transferring to an enclosed system for alkali treatment, and finally separating and drying to obtain the modified ZSM-5 zeolite. The supersonic wave can generate a super strong cavitation effect so as to activate the ZSM-5 zeolite's framework silicon atom and help the next alkali treatment. During the alkali treatment process, aqueous alkali selectively removes part of silicon element in the ZSM-5 crystals such that structural rearrangement is generated in micropores so as to form mesopores. The addition of the low molecular weight organic solvent can promote the generation of the meso-structure so as to make the micropore structure more efficiently to be converted to mesopores and simultaneously stabilize and protect the micropore structure. By the adoption of the method, more complete micropores can be retained, more mesopores can be provided, and total BET specific surface area also can be increased.

The invention discloses a preparation method of graded porous carbon. According to the technical scheme, the preparation method comprises the steps: firstly, adding a foaming agent into a low-melting-point solid carbon-containing substance, and mixing for later use; then under a certain pressure and atmosphere, heating to a temperature T1, and homogenizing for t1; and under a certain pressure andatmosphere, heating to a temperature T2, carrying out a reaction for t2, heating to a temperature T3, carrying out a reaction for t3, cooling to room temperature, cleaning and drying to obtain the graded porous carbon. The basic concept of the invention comprises that a macroporous structure is formed by a foaming technology, the porosity of the carbon material is further increased by utilizing generated reducing gas, and then more micropores and small mesopores are generated by utilizing cracking and intercalation of anode ions under heat treatment to form porous carbon with a micropore-mesopore-macroporous hierarchical pore structure. The method has the advantages of being high in operability, large in aperture adjusting range, accurate in regulation and control and the like.

The invention provides an ultra-deep desulfurization catalyst, a preparation method thereof and an application of the catalyst. The preparation method of the desulfurization catalyst includes the steps: weighing ammonium paramolybdate and nickel acetate tetrahydrate, dissolving the ammonium paramolybdate and the nickel acetate tetrahydrate in glacial acetic acid and water mixed solution in a stirring manner; adding hydrazine sulfate and dissolving the hydrazine sulfate in a stirring manner; performing stirring reaction in a thermostatic water bath to obtain polyoxometallate after reaction; dispersing the polyoxometallate in water and performing ultrasonic treatment; adding aluminum oxide, uniformly stirring the materials and performing hydro-thermal decentralization loading in an autoclaveto obtain the desulfurization catalyst after reaction. The prepared desulfurization catalyst is good in dispersing performance and high in activity, ultra-deep desulfurization can be achieved, and desulfurization rate reaches up to 93.8%.

The invention discloses a multi-strain fermented apple vinegar rich in free amino acids and a production process thereof. The combined use of pectinase and beta-glucosidase can reduce the content of pectin and cellulose in the raw materials, promote dissolution of nitrogen-containing substances in the raw materials, increase the content of nitrogen sources available to microorganisms, and improvethe utilization rate of raw materials. The cider is produced by static fermentation. Since lactic acid bacteria and yeast both have facultative anaerobic characteristics, the utilization rate of raw materials is improved, the flavor of the prepared cider is mellow, the nutritional ingredients are increased, the health care effect is improved, and high-quality raw materials for the fruit wine are provided for the fermented apple vinegar. According to the apple vinegar prepared by multi-strain fermentation, the total acid content can reach 4.0 g/100 mL, and the content of free amino acids is greater than or equal to 100 mg/L and the contents of proline and phenylalanine in the apple vinegar are remarkably increased. The apple vinegar of the invention is nutritious, healthy, safe and reliable, and the health-care effect of the vinegar is also improved.

The invention provides a processing method for an acidized fracturing flow-back fluid. The method comprises the following steps: (1) carrying out aeration on an acidized fracturing flow-back fluid tobe treated; (2) carrying out electrocatalytic oxidation reaction treatment on the acidized fracturing flow-back fluid subjected to the aeration treatment in the step (1); and (3) carrying out mixing flocculation on the acidized fracturing flow-back fluid subjected to the electrocatalytic oxidation reaction treatment in the step (2). According to the method disclosed by the invention, the pH valueis increased in the reaction process, so that the steps and the dosing amount of pH adjustment required for neutralizing the acidized fracturing flow-back fluid are reduced; oxidization of organic matters sewage can be promoted by the aeration, and weak acid radicals are decomposed into carbon dioxide, so that the pH value is increased.

The invention relates to the intelligent manufacturing information analysis technology, in particular to a text information classifying method based on a segmented encoding genetic algorithm.The method mainly includes the following steps that a corresponding text information matrix, namely a population size is generated through the text pretreatment technology, a dimensionality reduction characteristic number is given, an initial population is generated randomly, a chromosome with the maximum optimization objective function value is marked, and the optimization function value is recorded; segmented encoding (each segment corresponds to one type) is adopted for the chromosome, a new population is produced by enabling the initial population to intersect and mutate, and an optimization function value of the optimized population is calculated.Optimized text information classification can be generated, based on segmented encoding/intersecting reasonable classification, the problem that working efficiency is low due to a large data size of the genetic algorithm can be solved, distributed processing and parallel operation can be achieved due to segmented encoding/intersecting, and the efficiency of following data processing can be greatly improved.

The invention discloses a resonant cavity-based lateral current limiting high-efficiency light-emitting diode and belongs to the field of semiconductor electronics. The resonant cavity-based lateral current limiting high-efficiency light-emitting diode comprises an upper electrode, an upper Bragg reflector, a resonant cavity, a lower Bragg reflector, a substrate and a lower electrode which are distributed sequentially from top to bottom; the upper electrode consists of an upper pressure welding electrode and an upper current expanding electrode; low-refractive-index material layers and high-refractive-index material layers which are arranged alternately are adopted to form the upper Bragg reflector and the lower Bragg reflector separately; an upper DBR oxidizable material layer is arrangedat the bottom of each of the upper Bragg reflector and the lower Bragg reflector; an active region is located in the middle of the resonant cavity; and a lower DBR oxidizable material layer is arranged at the top of the active region. The diode further comprises an upper expansion electrode lateral oxide layer, a lower expansion electrode lateral oxide layer, an upper pressure welding electrode lateral oxide layer, a lower pressure welding electrode lateral oxide layer, an expansion electrode lateral oxide layer, an extension electrode dielectric layer and a pressure welding electrode dielectric layer. According to the diode of the invention, the lateral oxide layers are used for limiting the transverse flow of current, so that carriers are prevented from being injected into the active region under the top electrode; the resonant cavity structure in a vertical direction is used in combination; and therefore, the light emitting diode has the advantages of high efficiency, good thermalperformance and stable radiation wavelength.

The invention provides a method of increasing the caulerpa lentillifera commodity output rate and improving the caulerpa lentillifera commodity quality. The method includes the steps that in an initial stage of culture, upright stems of caulerpa lentillifera are subjected to cut-off and low-light suspension culture to be induced to generate stolons; in a floating bed culture stage, a gradual addition control strategy is conducted on light intensity and nutrient salt; in middle and later stages of culture, the upright stems are cut off to keep appropriate culture density. The method of increasing the caulerpa lentillifera commodity output rate and improving the caulerpa lentillifera commodity quality is designed according to different light intensity and nutrient salt which are acquired during induced generation of different caulerpa lentillifera body parts in different stages of caulerpa lentillifera culture. By adopting the method of increasing the caulerpa lentillifera commodity output rate and improving the caulerpa lentillifera commodity quality, it can be promoted that the upright stems of caulerpa lentillifera generate plenty of stolons in the initial stage of growth, the caulerpa lentillifera body growth speed in the floating bed culture stage and the commodity output rate are significantly increased, and upright stem products with high quality are obtained in a harveststage.

The invention provides a preparation method of a methamphetamine artificial antigen. The method comprises the following steps: preparing and detecting a semiantigen: chemically modifying methamphetamine and succinic anhydride used as raw materials, connecting arms, and reacting to obtain the semiantigen containing a carboxyl group; and 2, preparing and detecting the artificial antigen: combining the semiantigen containing a carboxyl group with bovine serum albumin (BSA) through a carbodiimide technology to prepare the methamphetamine artificial antigen which is methamphetamine-bovine serum albumin. The methamphetamine artificial antigen prepared in the invention can undergo animal immunization to obtain a corresponding methamphetamine antibody, can be used in researches of various methamphetamine immunoassays, and provides a convenient, fast and accurate approach for detecting methamphetamine.

The invention discloses a preparation method of KSr2Nb5O15 transparent ferroelectric ceramic. Through design of a ball milling technology, grain composition is achieved; through the optimization of arubber dicharging technology, a large number of pores are prevented from being formed in a ceramic blank in the rubber dicharging process; through sintering in an oxygen atmosphere, gas in the pores in the ceramic blank is compatible with a material system in the sintering process, so that the discharge of oxygen atoms is facilitated, and the porosity is reduced and the density of the ceramic is increased. The KSr2Nb5O15 transparent ceramic prepared by the preparation method provided by the invention has high density, low porosity and high visible light transmittance, and a technical basis isprovided for subsequent optical functional application of the system material; in addition, sintering in a pressureless atmosphere is adopted, a requirement on sintering equipment is low, a preparation cycle is short, later annealing treatment is not required, and economy, convenience and fastness are achieved.

The invention relates to a carbon aerogel for improving divalent Fe reducibility and hydrogen peroxide yield in an electrode as well as a preparation method and an application thereof. A metal oxide and a metal sulfide grow in a carbon material skeleton in situ; according to the invention, a novel Fe3O4/FeSx co-doped carbon aerogel material is provided as an efficient cathode electrode of a heterogeneous electro-Fenton system; the cathode has a high specific surface area, good electrocatalytic activity and 2-electron selectivity, the aerogel can be used for deep degradation of pollutants afterbeing activated, feasibility is provided for efficient mineralization and degradation of DMP and 3-CP under acidic conditions, and the aerogel has a very wide application prospect in actual sewage treatment. Compared with the prior art, the method has the advantages that the pollutant removal rate is high, the iron-sulfur leaching rate is low, and the effective degradation efficiency is still kept after multiple times of repetition.

The invention discloses a device and a method for preparing trichlorosilane from silicon tetrachloride. The device comprises sealing flanges, variable backing rings, high-voltage baffle rings, an electric medium, an outer electrode and an inner electrode, wherein the inner electrode is positioned at the position of an axis; two ends of the inner electrode are respectively connected with the two sealing flanges; two ends of the electric medium are respectively connected with the two sealing flanges; the inner electrode is sleeved by the electric medium; the electric medium is sleeved by the high-voltage baffle rings; the high-voltage baffle rings are tightly adhered to the sealing flanges; the outer surface of the electric medium is tightly wrapped by the outer electrode; an air inlet guide hole is formed in one sealing flange; an air outlet guide hole is formed in the other sealing flange. The device is flexible in structure and good in air tightness, geometrical parameters of the device can be easily adjusted, and damage caused by air leakage can be eliminated; breakdown voltage can be effectively reduced, plasma can be maintained in an unbalance state, low-temperature plasma can be easily generated, and the electron density inside a discharge gap can be effectively increased; the device is wide in operation range, and can work with relatively high air pressure, voltage, frequency and power.

The invention relates to a method and device for electromagnetic enhanced wood fiber liquefying-jet rotational flow multi-level energy conversion. According to the invention, an anaerobic fermentationprocess is divided into three stages of hydrolysis, acidification and fermentation which are independently performed; the electromagnetic enhanced cellulose, hemicellulose and lignin are hydrolyzed and liquefied, so that the degradation of the microorganism for the cellulose, hemicellulose and lignin is greatly improved; the three stages are independently performed, the dominant bacteria in all the stages are fully utilized and the organic compound controlled under the reaction conditions in the three stages can be anaerobically digested so as to acquire target biomass energy; due to the application of rotational flow air flotation, the raw material substrate is in full contact with the microorganism in fermenting liquor, the heat and mass transfer effect is excellent, the occurrence of the phenomena, such as, crusting and ammonia restraining, in the fermentation process can be effectively avoided, the biochemical reaction speed is greatly increased and the generation of the biomass energy is benefited; the method provided by the invention is simple; the device is easily manufactured; the method and the device are suitable for resource utilization, such as, urban and rural organicwastewater in the areas of highland, high and cold area, and the like.

The invention relates to an ultrasonic atomization plasma processing device which includes a power supply, an ultrasonic transducer, an ultrasonic nozzle and an electrode holder. The ultrasonic nozzle is connected with the ultrasonic transducer; an insulating layer is arranged between the ultrasonic transducer and the electrode holder; the electrode holder is grounded; and the ultrasonic transducer is connected with a positive pole of the high-frequency power supply. An electric field discharge is generated between the electrode holder and the ultrasonic transducer; and a sprayer discharges an atomized reaction raw material, so that plasma is generated. The ultrasonic atomization makes the generated plasma more evenly-distributed; and the ultrasonic transducer can convert the electric energy into the mechanical energy, so as to effectively promote the uniform distribution of gas and help the discharge to generate the plasma.

The invention discloses a method for manufacturing an electromagnetic wire, which mainly comprises the following steps: cleaning, drying, film coating, roasting and curing a pretreated metal wire into the electromagnetic wire, wherein the step of film coating adopts a triboelectric charging powder coating method to coat the metal wire; and the step of roasting and curing adopts an infrared curing technology to cure a coating film. The method for manufacturing an electromagnetic wire cannot do harm to the environment, and the thickness of the coating film is more uniform without generating mass points. Meanwhile, due to the adoption of the infrared curing technology, temperature is risen from the interior of the metal wire to transfer heat outside so as to melt a powder coating and be beneficial to exhausting air and small molecular compounds in the coating film before film forming, improving the electrical insulating property, the appearance and the leveling of the coating film and avoiding generating pin holes, and moreover, the method has high curing speed, greatly improves the production efficiency and saves energy.

The invention discloses a combined multistage mud chip crushing drill which comprises an upper cutter plate, a centering drill, a plurality of blades and a plurality of crushing teeth. The centering drill is welded in the middle portion of the upper cutter plate, two main blades of the centering drill are bilaterally symmetric arc blades; the plurality of blades and the plurality of crushing teeth are all arranged on the upper surface of the upper cutter plate; the tooth profile of each breaking tooth is axis-symmetric and forms a conical degree in the height direction, and one end is wider than the other. In the process of a trenchless drilling, the centering drill firstly contacts a gravel soil, and with a specific structure, can play a centering and guiding role and carry out cutting and chip removing on the middle portion of the gravel soil. The two tooth profiles have different functions and mutually affects the breaking function of rocks to enable the rock breaking to be more easier, so that the combined multistage mud chip crushing drill can provide the mud chips needed by the mud chip pneumatic conveying.

The invention provides an epoxy composite material and a production method thereof. Raw materials of the epoxy composite material comprise an epoxy resin base material, inorganic filler, a curing agent and a fiber fabric; the inorganic filler is composed of two kinds of filler with different particle size, and a ratio of the average particle size of the two kinds of filler ranges from 1:0.37 to 1:0.45, wherein the average particle size of the filler with the larger particle size is equal to or larger than 10 [mu]m; on the basis of the volume of the fibber, in the two kinds of filler, a ratio of the amount of the filler with the larger particle size and the amount of the filler with the smaller particle size is as shown in the specification, wherein V is a volume percentage of the inorganicfiller in the epoxy composite material, and according to the epoxy composite material, by adding the fiber fabric, not only can the heat conduction performance and the insulation performance be freefrom effects, but also the mechanical performance, especially the anti-crack performance, of the epoxy composite material is effectively improved; and compared with a method where three kinds of filler with different particle size is adopted, the production method of the epoxy composite material has the advantages that by adopting the two kinds of inorganic filler with the different particle size,the production working procedure can be simplified, and operation is simple.