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3118results about How to "Ease of industrial application" patented technology

ZSM-5 type molecular sieve for catalyst for reaction for preparing propylene from methanol and/or dimethyl ether

The invention provides a ZSM-5 type molecular sieve for a catalyst for a reaction for preparing propylene from methanol and/or dimethyl ether, which has a silica alumina ratio of 250-1,150 and a grain diameter of 65-250nm. A preparation method of the molecular sieve comprises the following steps: (1) mixing an aluminum source and an organic directing agent and stirring an obtained mixture at constant temperature of 0-30 DEG C for 2-24 hours; (2) adding a silicon source and an organic addition agent to the mixed solution obtained in the step (1) and continuing stirring the mixed solution to obtain gel; (3) stirring the gel obtained in the step (2) at 35-95 DEG C and then carrying out a crystallization reaction for 24-240 hours at 60-200 DEG C, wherein in the raw materials for synthesizing the molecular sieve, and the molar ratio of OH<-1> to SO2 to AL2O3 to H2O to the organic directing agent to the organic directing agent is (0.1-0.35):1:(0.0005-0.01):(10-25):(0.1-0.6):(0.5-8). The ZSM-5 type catalyst has the characteristics of controllable grain size, adjustable silica alumina ratio, high dispersity, and the like and has higher propylene selectivity and P/E ratio in the reaction for preparing low carbon olefin from the methanol and/or the dimethyl ether.
Owner:DATANG INT CHEM TECH RESINST

Method for extracting aluminium oxide from coal ash

The invention provides a method to extract aluminum oxide from a fly ash, and relates to a technological method which is to extract aluminum oxide from the fly ash and comprehensively utilize the residue after extracting aluminum oxide. The invention is characterized in the method which is as follows: ammonium sulfate is mixed into the fly ash to sintering, and the solid is dissolved to obtain the solution containing aluminum-ammonium sulfate; the solution is crystallized to form solid aluminium-ammonium sulfate; solid aluminium-ammonium sulfate reacts with ammonia gas to obtain aluminium hydroxide and ammonium sulfate, and aluminium hydroxide and ammonium sulfate are washed and filtrated to obtain solid aluminium hydroxide; solid aluminium hydroxide is calcined to obtain aluminum oxide; ammonium sulfate can be circularly used after being evaporated in the liquid phase. The ammonium sulfate which is used by the method of the invention is weak acidic, the corrosiveness on the equipment is small, and the ammonium sulfate can be used circularly. The whole process is easy to industrial application. The requirement of the corrosion resistance on the equipment is low. The amount of the residue is small which is beneficial to the comprehensive utilization of the residue after extracting the aluminum oxide.
Owner:河南华慧有色工程设计有限公司 +1

Surface treating method for sea water corrosion-resistant metal aluminum or aluminum alloy

The invention relates to a method for treating the surface of seawater corrosion resistant metallic aluminum or aluminum alloy. The method comprises the following steps: 1) sand pellets are used to carry out gritting blasting treatment for the surfaces of aluminum and aluminium alloy through a spray gun so as to bring about the concave and convex surface topography in the micron order for aluminium and aluminium alloy; 2 the aluminium and aluminium alloy is cleaned after degreasing and is taken as the anode of an electrolytic bath, and nickel is taken as a cathode; the electrolyte is prepared and is added into the electrolytic bath, and a DC power supply is connected with the anode and the cathode so as to form nanometer holes on the aluminium or aluminium alloy surface; and 3 silicon fluoride is taken to carry out the surface finish of aluminum or aluminium alloy so as to reduce the surface free energy of aluminium or aluminium alloy. The method for adopting silicone fluoride to carry out the surface finish of aluminum or aluminium alloy comprises the following steps: heating up the aluminium or aluminium alloy processed in step 2 to 90 to 120 DEG C, keeping the temperature for 30 to 40 minutes, taking the aluminium or aluminum alloy out and cooling down the aluminium or aluminum alloy to a room temperature, and then carrying out surface finish through a soak method or a vapor plating method. The processed aluminium metal or aluminum alloy has good resistance to seawater corrosion.
Owner:SOUTHEAST UNIV

Preparation method of particle-enhanced organic anticorrosive coating on surface of neodymium-iron-boron permanent magnet material

InactiveCN102443834AMagnetic has no effectExtended service lifeElectrophoretic coatingsEpoxyMicro nano
The invention relates to a preparation method of a particle-enhanced organic anticorrosive coating on the surface of a neodymium-iron-boron permanent magnet material, and specifically relates to a cathode electrophoresis coating method of the particle-enhanced organic anticorrosive coating on the surface of the neodymium-iron-boron permanent magnet material. According to the invention, first, the surface of the neodymium-iron-boron permanent magnet material is polished; the surface of the neodymium-iron-boron permanent magnet material is subject to degreasing, rust removing by acid cleaning, surface phosphorizing, cathode electrophoresis coating and high-temperature curing, such that a particle-enhanced organic matter coating is formed on the surface of the neodymium-iron-boron permanent magnet material. According to the coating provided by the invention, epoxy resin, acrylic acid and polyurethane are adopted as substrates; micro-nano titanium oxide particles, alumina particles, graphite particles, aluminum particles and the like are adopted as enhancing phases, such that a composite organic coating can be prepared. The coating causes no influence on the inherent magnetic performance of the magnet. The coating has a good bonding force with the magnet, and has a good caking property with bonding glue. The coating is also advantaged in uniform thickness, smooth surface, high corrosion resistance, and low preparation cost.
Owner:NANCHANG HANGKONG UNIVERSITY

Handheld plasma electric torch

The invention relates to a handheld plasma electric torch. The handheld plasma electric torch comprises an electric torch shell, a battery rack, a rechargeable battery, a low voltage switch, a booster, a first resistor, a second resistor, an electrode interface, an electrode, a booster fixing rack and an electrode interface fixing rack, wherein the rechargeable battery is connected with the low voltage switch and the booster; the battery rack is arranged on the lower part of the electric torch shell; the rechargeable battery is arranged in the electric torch shell and fixed by the battery rack; the electric torch shell is a hollow cavity and is provided with a handheld part which is made of a conductive material; an opening for accommodating the electrode is formed at the upper end of the electric torch shell; the booster is fixed in the electric torch shell by the booster fixing rack; the high voltage output end of the booster is connected with the electrode interface by the first resistor; and the low voltage end of the booster is connected with the handheld part of the electric torch shell by the second resistor. By using the handheld plasma electric torch, the problems that a power supply is expensive, the volume is large, the power supply works only when grounded and cannot be moved, the area of generated plasmas is small and the like in the conventional atmosphere pressure plasma device has can be solved.
Owner:武汉海思普莱生命科技有限公司

Method for separating collophanite

The invention relates to a method for separating collophanite, which is characterized by comprising the following steps of: (1) coarsely grinding raw collophanite; (2) performing reverse floatation on the grinding product to remove magnesium; (3) reacting floatation base flow of the step (2) with a desulfurization floatation medicament for reverse floatation to remove sulfur; (4) reacting the floatation base flow in the step (3) with a desilicification floatation medicament for reverse floatation to remove silicon; (5) performing intensity magnetic separation on the floatation base flow in the step (4) to remove iron; (6) regrinding a non-magnetic product in the step (5); (7) reacting the grinding product in the step (6) with a desulfurization floatation medicament for reverse floatation to remove sulfur; and (8) reacting the floatation base flow in the step (7) with a dealumnization floatation medicament for reverse floatation to remove aluminum to obtain aluminum-containing floatation foam and the floatation base flow, wherein the floatation base flow is the final phosphorus concentrate. The method can perform floatation at normal temperature and even low temperature to obtain phosphorus concentrate, and has the advantages of high separation property, low energy consumption and effective improvement of the P2O5 recovery rate.
Owner:BEIJING GENERAL RES INST OF MINING & METALLURGY

Power special quantum encryption gateway system

The invention provides a power special quantum encryption gateway system. The system comprises a power special quantum encryption gateway communicated with a gateway management device through a quantum link; the power special quantum encryption gateway is used for performing encryption communication through the quantum link or a classic link; a quantum secret key distributing device is integrally arranged on the power special quantum encryption gateway and comprises a vertical integration model and a transverse integration mode; the quantum link comprises a quantum secret key sending device and a quantum secret key receiving device which are connected with each other through an optical fiber or a free space; the gateway management device comprises a user authentication module, a user right/certificate management module, a quantum secret key management module and a communication interface module. Compared with the prior art, the power special quantum encryption gateway system provided by the invention is capable of synchronously supporting the traditional mode encryption function and the quantum mode encryption function, and capable of providing unconditional information security assurance for the power system data transmission under the quantum mode, and convenient for the large-scale deployment and industrial practicality of the power special quantum encryption network.
Owner:STATE GRID CORP OF CHINA +3

Preparation method for composite magnetic adsorption material and method for removing heavy metal ions in waste water

The invention relates to a preparation method for a composite magnetic adsorption material and a method for removing heavy metal ions in waste water. The preparation method comprises the following steps: (1) putting a magnetic seed in a grinding machine for fine grinding so as to obtain a submicron magnetic particle; (2) mixing the magnetic particle and a high-molecular natural material capable of absorbing heavy metals with a solvent, adding a flocculating agent and carrying out uniform mixing and a reaction so as to obtain a spherical composite magnetic product; and (3) subjecting the composite magnetic product to magnetic separation, washing and drying so as to obtain the composite magnetic adsorption material. The magnetic adsorption material is added into waste water containing heavy metal ions, then stirring, adsorption and a reaction are carried out, a magnet separator is used for magnetic separation and adsorption of magnetic material containing heavy metal ions, and heavy metals are recovered. According to the invention, the adsorption material is easy to prepare; the removal rate of the heavy metals is high; the advantages of simple process, low cost and environment friendliness are obtained; and the methods are suitable for industrial application.
Owner:GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG

Honeycomb-ceramic-type monolithic catalyst, and preparation method and application thereof

The invention discloses a honeycomb-ceramic-type monolithic catalyst, and preparation method and application thereof. The monolithic catalyst takes honeycomb ceramic as a carrier, a Beta molecular sieve is coated on the surface of the honeycomb ceramic and taken as a coating layer, and then active component, namely precious metal, is loaded on the surface of Beta molecular sieve; the active component of the precious metal is one or two selected from palladium or platinum; in the honeycomb-ceramic-type monolithic catalyst, the mass ratio of the coating layer of the Beta molecular sieve to the honeycomb ceramic is 0.02-0.2:1, the mass ratio of the precious metal to the coating layer of the Beta molecular sieve is 0.02-0.2:1, the honeycomb ceramic is cordierite honeycomb ceramic; and in the invention, the high-silicon or full-silicon Beta molecular sieve is taken as the coating layer of the monolithic catalyst, and has the characteristics of good water resistance, high heat stability andthe like, and the monolithic burning catalyst taking the Beta molecular sieve as the coating layer can keep better activity and stability under high temperature, and suitable for being taken as catalytic combustion catalyst for application.
Owner:ZHEJIANG CENWAY MATERIALS CO LTD

Double-frequency and double-polarization antenna capable of operating in compass satellite navigation system and mobile third-generation (3G) network

The invention discloses a double-frequency and double-polarization antenna capable of operating in a compass satellite navigation system and a mobile third-generation (3G) network and is implemented in a form of a laminated micro-strip circuit. The double-frequency and double-polarization antenna capable of operating in the compass satellite navigation system and the mobile 3G network comprises an upper-layer micro-strip antenna, a lower-layer micro-strip antenna and a metal floor layer, wherein the upper-layer micro-strip antenna has an upper-layer patch; the lower-layer micro-strip antenna has a lower-layer patch; the metal floor layer is arranged on a bottom layer; the upper-layer micro-strip antenna and the lower-layer micro-strip antenna share one metal floor layer; and the antenna is provided with six short-circuit metal columns which pass through the upper-layer micro-strip antenna and the lower-layer micro-strip antenna from the upper-layer patch and then are connected with the metal floor layer which is arranged on the bottom layer. The antenna adopts a feeding mode of dual-port coaxial feeding and has the advantages of simple and compact structure, miniaturization, convenience for processing and industrialized application, and the like.
Owner:SOUTH CHINA UNIV OF TECH

Preparation method of cigarette flavor compensating particles

The invention relates to a preparation method of cigarette flavor compensating particles, in particular to a filtering material added to a cigarette filter and the preparation method of the material, belonging to the technical field of a cigarette auxiliary material. The cigarette flavor compensating particles are mainly composed of a silicic acid rock base material and a flavor carrying agent; bulking silicic acid rock is taken as a raw material; a loading agent is added; and finally the silicic acid rock load particles are formed by loading, drying, granulating and other processes. In the preparation method, particle materials are from the silicic acid rock and a natural plant material, and the silicic acid rock has better absorption characteristics; after loading and microwave treatment, the silicic acid rock particles have no influence on cigarette flavor, and the employed loading agent has the action of synergetic harm reduction at the same time; and a formula plant extract and plant fiber loaded on the surface of the particles can effectively release quantitative flavor elements and transfers the flavor elements to sucked smoke. The silicic acid rock particles prepared by the method can be used for directly combining with the current filter tip forming process, thus achieving convenient industrialized application.
Owner:SHANGHAI HUABAO BIOLOGICAL TECH

Metallic oxide/metal sulfide hollow nanospheres as well as preparation method and application thereof

The invention discloses a metallic oxide / metal sulfide core-shell heterojunction hollow nanosphere. The inner layer of the spherical shell is a metallic oxide polycrystalline layer; the outer layer of the spherical shell is a metal sulfide polycrystalline layer; a heterojunction is formed between the metallic oxide polycrystalline layer and the metal sulfide polycrystalline layer; the thickness of each layer is 10 nanometers or below; and the diameter of the hollow sphere is 100-600 nanometers. The preparation method comprises the following steps: utilizing a template adsorption method, performing stepped adsorption and subsequent hydrothermal sulfuration, thereby preparing the metallic oxide / metal sulfide core-shell heterojunction hollow nanosphere. The metallic oxide / metal sulfide core-shell heterojunction hollow nanosphere disclosed by the invention is regular in structure, the thickness of the spherical shell is controllable, the grain size of the metallic oxide and metal sulfide is 10nm or below, the crystal quality is high, and the specific surface area is larger than 200m<2> / g. The method disclosed by the invention is simple and low in cost, has extremely wide range on selection of types of metallic oxides and selection of metal sulfides and contributes to industrialized application.
Owner:ZHEJIANG UNIV

Treatment method of heavy metal wastewater

The invention provides a treatment method of heavy metal wastewater, and particularly relates to a method for treating heavy metal wastewater by virtue of a precipitation method. The method comprises the following steps: adding sodium sulfide in a heavy metal wastewater treatment process, reacting sulfur ions with heavy metal ions in the wastewater to generate particulate matters, further adding sulfide precipitates of heavy metal, stirring, standing, and accelerating the sedimentation of micro particulate matters and other substances by using generated particulate matter precipitates; further preferably adding quartz sand, and accelerating the rapid sedimentation of the particulate matters and other substances under the wrapping action of quartz sand; further performing subsequent process treatment including sand filtration and ion exchange on a supernatant liquor obtained after sedimentation to reach the emission standard; and periodically discharging and collecting part of the precipitates, and recycling heavy metals in the precipitates. Because the method provided by the invention is simple in working procedure, low in cost and high in efficiency, the method can be widely applied to the treatment of industrial wastewater particularly the heavy metal wastewater.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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