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272 results about "Friendly environment" patented technology
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Visual electronic library
InactiveUS20050102610A1Digital computer detailsNatural language data processingDocumentation procedureInformation resource
A method and system of generation, organization and presentation of web pages or computer graphic user interfaces on computer, computer peripheral devices, electronic equipment, digital processing systems, and other information resources are disclosed. Modeling physical books, bookshelves and libraries, Visual Library comprises Visual Bookshelves, while Visual Bookshelf comprises Visual Book Covers that represent and link to Visual Books, and Visual Books comprise a set of Visual Navigation Tabs that represent and link a set of web pages or a set of graphic user interfaces. With look-and-feel, the linked Visual Library, Visual Bookshelves and Visual Books in hierarchical structures provide a friendly environment in which the documents, contents can be well organized and easily navigated.
Owner:JIE WEI
Virtual Serial Concentrator for Virtual Machine Out-of-Band Management
ActiveUS20100306763A1Easy to identifyIncrease valueSoftware simulation/interpretation/emulationMemory systemsVirtualizationVirtual machine
A system and method for providing dynamic access through which I / O access such as serial ports, and thus administrators who manage servers, can see, obtain health, state or interact concurrently with multiple VMs on a given physical server. More specifically, in certain embodiments, the system and method includes a dynamic port count virtual serial concentrator coupled with a virtualization device to map emulated serial ports to virtual machines along with a remote plugin that provide dynamic concurrent serial access to many virtual machine serial consoles under a secure and collaborative friendly environment.
Owner:DELL PROD LP
Touch Friendly Applications in an Information Handling System Environment
InactiveUS20110131531A1Direct accessSpecial data processing applicationsInput/output processes for data processingOperational systemDynamic touch
A dynamic touch interface in which users are able to flick or scroll within the dynamic touch interface such as a dock or carousel and view the contents of their applications and thus provides a touch friendly environment to a personal computer type operating system (i.e., a keyboard / mouse input type operating system). More specifically, the touch input environment implements dynamic icons such that the icons populate content which is viewed or experienced. For example, if a user launches a favorite band in a music application, the carousel is automatically populated with album art or a picture of the band. The next time the user visits the desktop, the music icon is replaced by an image of the band or artist. Also, in certain embodiments, the icon includes a brief description of the content (i.e., number of songs or albums in folder).
Owner:DELL PROD LP
Method for preparing hypovanadic oxide doped powder material
InactiveCN101481142ALower phase transition temperatureEffective dopingVanadium oxidesPhase conversionAtmosphere
The invention discloses a method for preparing hypovanadic oxide powder-doped material, which belongs to the production and preparation field of inorganic functional materials and relates to the preparation of hypovanaic oxide powder doped with W, Mo or W / Mo. The method comprises the following steps: mixing and evenly grinding a vanadium source, a doped raw material and an auxiliary agent, pouring the mixture after being molten at a high temperature and keeping the temperature for a certain period of time into cold water to be rapidly water-quenched, drying the formed gel to form dry gel, thermal-reducing the grinded dry gel in the reduction atmosphere, performing annealing treatment in a protective atmosphere, and realizing the crystalling phase conversion at a constant temperature so as to obtain M-phase VO2 with phase transition property. The phase transition temperature of the VO2 powder after doping can be effectively controlled by adjusting the W and Mo atom doping amount. The invention has remarkable advantage in the aspects of preparation cost, product performance, technique flow, friendly environment, economic profit, and the like, has easily available raw materials, simple and convenient synthesis, low requirement on the equipment and high product performance, is suitable for industrial production and has wide application of product.
Owner:DALIAN UNIV OF TECH
A recovery method of tin in tin-stripping waste liquid
ActiveCN101532096AAchieve recyclingLow requirements for production equipmentProcess efficiency improvementRecovery methodLiquid waste
The invention relates to a recovery method of tin in tin-stripping waste liquid. The invention includes the following steps: (1) using sodium carbonate solution to neutralize the pH value of the tin-stripping waste liquid to 3.5 to 9.0, filtering; (2) taking the filter cake obtained in step 1, adding water and sodium hydroxide, heating for boiling conversion 1 to 2 hours, wherein, the boiling temperature is 103 DEG C to 115 DEG C, adding water for stirring 30-60 minutes and then filtering, wherein, the dosage of the sodium hydrate makes the molar ratio of the tin and sodium hydrate to be 1:4-1:9 ; (3) fetching the filtrate obtained in step 2, stirring and infusing carbon dioxide in the filtrate until the complete deposition of tin, and then filtering, washing, drying the filter cake to obtain the metastannic acid. The invention has lower requirement for production equipment, friendly environment, and lower production costs; the produced metastannic acid and stannic oxide can satisfy various manufacturing production requirements; the entire production process can achieve the recycling use of materials, zero discharge, good economic, environmental and social benefits.
Owner:SHENZHEN SHENTOU ENVIRONMENT TECH CO LTD +1
Method for processing sulphuric acid free radical oxidized water
InactiveCN101172691ANo secondary pollutionImprove processing efficiencyWater/sewage treatment by irradiationWater/sewage treatment by oxidationDecompositionFenton reagent
Owner:DALIAN MARITIME UNIVERSITY
Apparatus and Method For Desert Environmental Control And For Promoting Desert Plants Growth
InactiveUS20080148631A1Efficient implementationReducing negative consequencePhotovoltaic supportsClimate change adaptationGrowth plantEngineering
A method of desert environmental control using the apparatus as disclosed herein that can be installed in huge expanse of desert area, evenly spaced in a square matrix type formation, forming a protective layer against sunlight, and turning the sun's natural energy into electrical power by the solar panel or photo-voltaic cells that can be placed upon the shade panel as disclosed herein, creating a friendly environment that promotes plants growth and thus turning arid desert land into human friendly land at a cost lower than other current systems.
Owner:WAN YOU BAO
Epoxy resin micro-capsule and its preparation method
InactiveCN101319055AImprove sealingGood mechanical propertiesMicroballoon preparationMicrocapsule preparationEpoxyIn situ polymerization
The invention discloses an epoxy resin microcapsule and a preparation method thereof. The epoxy resin microcapsule comprises a capsule core and a capsule wall, wherein, the capsule core is an epoxy resin, and the capsule wall is a composition of an aepoxy acrylate resin, a polymerizable emulsifying agent, a crosslinking agent and an optical initiator; and the polymerization method of the capsule wall is ultraviolet irradiation and film forming through curing. The preparation method for the microcapsule comprises the following steps that: core materials, wall materials and an ultraviolet initiator are added into a water solution which is dissolved with a surfactant in turn under the condition of high-speed stirring; after an oil-in-water emulsion system is prepared by emulsification, ultraviolet light is immediately used for irradiating the emulsion, and the surface compositions of oil-in-water liquid droplets undergo in-situ polymerization and film forming through curing; a great dealof water is added for repeated sedimentation and water scrubbing; and microcapsule products are prepared through vacuum freeze drying of microcapsule deposits. The method has a simple technique, low energy consumption, quick speed and friendly environment. The capsule prepared takes the shape of a regular sphere, has good leak tightness and heat resistance, and can be widely applied to self-repairing of self-setting thread fasteners and thermosetting resin substrate composite materials.
Owner:SUN YAT SEN UNIV
Client centric document preparation interface
InactiveUS20060253478A1Easy to useEffective informationDigital data processing detailsNatural language data processingSoftware systemPaper document
A system and method allows multiple users to more efficiently access and use client information in the preparation and assembly of documents. A computer software system captures certain information from clients and separately stores it from ordinary document assembly files such as template and answer files. A computer software system provides an intuitive, friendly environment in which to call a document assembly engine. A computer software system enables a more efficient re-use of information to form completed documents. A context-sensitive computer software interface hierarchally arranges a list of documents by client, then client matter, and then document type. Files are internally uniquely named and are accessed by a checkout mechanism from a central repository which avoids data loss associated with multi-user access.
Owner:ILS MANAGEMENT
Floating microcapsule carrier under friendly environment and its production
An environment friendly floating microcapsule used as the carrier of agricultural chemical, fertilizer, etc is composed of a core containing wall, floating material and / or cellular body and active components chosen from agricultural chemical, functional bacteria, fertilizer and pollutant treating reagent, and one or more layers of coating film.
Owner:INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
Method for producing vanadium iron with stone-like coal pickle liquor
InactiveCN102002585AEliminate extraction and enrichment of vanadiumEliminate the pyrolysis processProcess efficiency improvementAmmoniaCoal
The invention discloses a method for producing vanadium iron with stone-like coal pickle liquor. The process course comprises the steps of: adding ammonium (ammonia) into the stone-like coal pickle liquor to eliminate aluminum; neutralizing aluminum-eliminated liquid or oxidizing the aluminum-eliminated liquid and then neutralizing and precipitating a ferrovanadium compound; purifying the ferrovanadium compound and eliminating impurities of the ferrovanadium compound; reducing and smelting the ferrovanadium compound to produce the ferrovanadium, and the like. The invention has simple and short process flow, less reagent consumption, low production cost, favorable product quality and friendly environment and is easy for realizing industrial production.
Owner:CENT SOUTH UNIV
Preparation of mixed glue nucleus solitarius shell-type fe3o4 nano solid phase extractive agent and application of the same
InactiveCN101130157AImprove stabilityPrevent oxidationOther chemical processesWater contaminantsMixed micellePerfluorooctanoic acid
The invention relates to a new mixed micelle core-shell SiO2 / Fe3O4 nanometer solid phase extracting agent in the chemical analysis test instrument device field, which has the big specific surface area of the nanometer material, the strong magnetic separating property of the magnetic material, the good satiability of SiO2 shell layer and the good extraction property of the semi micelle and the absorption micelle, and is fit for the large scale batch preconditioning of bulk water sample, and has the small usage extracting agent, high efficient extraction, the simple operation, the high extracting speed, the friendly environment, the wide using range, the low cost and the reactivation property. Selecting bisphenol A(BPA), nonyl phenol(4-OP), octyl phenol (4-NP) as the represent of the hydrophobic pollution material and selecting perfluorine enanthic acid (PFHeA), perfluorooctanoic acid (PFOA), perfluorine octane sulfonic acid (PFOS), perfluorine n-nonanoic acid (PFDeA) or the like perfluorine compound as the represent of amphipathic nature pollution material, there are 0. 1g extracting agent and 50mg surface activator in 800ml environmental water simple, and the extracting ratio of the organic pollution materials is more than 90%.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Water-soluble single component aliphatic polyurethane floor coatings and manufacturing method thereof
InactiveCN101362922AGood anti-sinking effectSolve the problem of difficult film formationPolyurea/polyurethane coatingsEmulsion paintsPolymer scienceUltra fine
The invention provides a waterborne single-component aliphatic polyurethane floor coating, relating to the technical field of polyurethane coating. The waterborne single-component aliphatic polyurethane floor coating consists of waterborne single-component aliphatic polyurethane latex, deionized water, waterborne dispersant, polyether modified siloxane defoamer, no-dissolve polyurethane associative thickener, filling material, pigment, waterborne antiseptic, cosolvent compounded by propylene glycol methyl ether and N-methyl pyrrolidone according to the proportion of 1:1, pH regulator and ultra-fine SiO2 extinction powder compatibility, is a floor coating type of high performance, high performance / price ratio and friendly environment, has more excellent wearability and weathering resistance performance correspondingly to coatings such as epoxy, and the like, and can achieve and exceed the mechanical performance and chemical medium resistance of the products such as epoxy, etc.
Owner:无锡市南雅化工有限公司
Slow release, long-acting urea manure and technique of manufacturing the same
InactiveCN101108781AFully functionExtend the fertilizer periodAgriculture gas emission reductionUrea compound fertilisersOrganic solventFluidized bed
The invention relates to the nitrogen manure, in particular to the slow-release and long-effect urea fertilizer coating a layer of biochemical inhibitor on the urea surface and the preparation process. The fertilizer components are the urea, the biochemical inhibitor, the bond and the organic solvent. The process is that: the levitated solution mixed with the biochemical inhibitor, the bond and the organic solvent is sprayed and coated on the surface of the molding urea granule under the fluidized state through a fluidized bed to gain the slow-release urea fertilizer. The fertilizer of the invention makes full play of the functions and effects of two biochemical inhibitors, makes the fertilizer effect period prolonged obviously and realizes that once basal nitrogen fertilizer application can meet the requirement of whole growing seasons on the nitrogen. The agricultural production saves labor and time with low production cost and friendly environment. For the secondary processing of the urea, the preparation process of the invention has simple operation and easy realization and can carry out industrial production on a large scale.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
Lubricant composition for exposed gear
The invention discloses an open gear lubricant composition, which comprises the following components by weight percentage: 3 to 35 percent of nano calcium carbonate, 2 to 20 percent of thickening agent, 0.01 to 2 percent of antirust, and the balance being base oil. The open gear lubricant composition adopts the nano calcium carbonate to replace the prior organic compound containing sulfur and phosphorus, namely an extreme-pressure antiwear agent and a black solid lubricant such as graphite and supramoly, and not only improves the extreme-pressure antiwear property of a lubricant but also makes the lubricant light-colored, nontoxic and flavorless and environment-friendly. Compared with the prior art, the open gear lubricant composition has the characteristics of superior lubrification, light color, insipidity, friendly environment and so on, and can be widely used for lubricating an open gear drive.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Method of synthesizing circularity carbonic acid ester containing water or moisture architecture
ActiveCN101108843AOrganic chemistryOrganic-compounds/hydrides/coordination-complexes catalystsEpoxySynthesis methods
The invention relates to a synthetic method of the cyclic carbonate with water system, which is characterized in that: in the water system with water content 0 per cent to 60.0 per cent of the weight of the epoxy compound and water, the epoxy compound and the carbon dioxide work as the raw materials and the ionic liquid with double teeth and alkali metal salt (capable of excluding) are used as the catalysts during reaction and the cyclic carbonate is synthesized under the condition of reaction pressure of 0.1MPa to 10.0MPa, temperature of 313.15K to 483.15K and the reaction time of 0h to 6h. Compared with the traditional method, the synthetic method has the advantages of friendly environment, moderate reaction condition, stable catalyst heat, low cost, easy synthesis, high selectivity, repeated use and high activity maintenance and has strong industrial application prospect.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Device for weeding, insect disinfestation and sterilizing with microwave
InactiveCN101218907AEasy to handleContainment leakWeed killersInsect catchers and killersTransformerGreenhouse
The invention discloses a device to carry out weeding, pest eliminating and sterilizing by using microwaves. The device consists two relatively parts of a microwave radiator and a power. The microwave radiator part comprises a bugle antenna, a resonance cavity, a permatron, a circulating device, a coupler, a control panel, a running device and an anti-leakage device, etc. The power part comprises a transformer and a rectifier, etc. When working, the microwave radiator moves and the power part does not move together with the microwave radiator; the power part feeds energy to the microwave radiator through a flexible feed wire, thus reducing the weight and size of the microwave radiator, being convenient for operating in a narrow and small space (such as a greenhouse, etc), being more convenient for miniaturization and mechanization and being beneficial to improve the planting manufacture efficiency of a protection field. The device adopts microwaves to prevent disease and pest with the advantages of convenient operation, no residue, friendly environment, which is helpful for carrying out nuisanceless agricultural production, suitable for the nuisanceless production like gardening plants such as vegetables, fruits and flowers, etc., and plants like medicinal materials, etc., in particular to the fine agricultures of the protection filed, etc.
Owner:北京科思飞创科技有限公司
Technique for preparing diacerein by two-step oxidation process
InactiveCN101104583AEasy to controlImprove product qualityOrganic compound preparationCarboxylic preparation by oxidationBULK ACTIVE INGREDIENTActive ingredient
The invention relates to a novel method to prepare diacerein which is an active ingredient for synthesizing medicine for knee osteoarthritis. The invention is characterized in that two steps of oxidation are adopted, firstly, the aloe-emodin is oxidated to rhubarb aldehyde and is acetylated for protection, secondly the intermediate product of the rhubarb aldehyde is oxidated, in this way, the final product diacerein can be obtained. The oxidation process of the invention is easy to control with a friendly environment and the quality of the products is greatly improved, thus the invention is suitable for large-scale production.
Owner:SHANGHAI PUYI CHEM CO LTD +1
Automobile engine filter paper immersion resin emusion and preparation method thereof
InactiveCN1657701AImprove physical strengthImprove mechanical stabilityReinforcing agents additionPaper/cardboardFunctional monomerMoisture resistance
The invention relates to filter paper dipping resin emulsion of car engine, with the following components: styrene monomer 10-35%, acrylic ester monomer 10-35%, functional monomer 0.5-10%, emulsifier 0.5-5%, initiator 0.1-1% and deionized water 50-70%. The invention is uses by half-continue emulsion polermarization technology, with simple processive technique, friendly environment, low cost, and it can make the filter paper of car get ideal strength, destroying resistance, moisture resistance and enough deflexion, remarkably strenthed physical strength, mechanical stability and resistance to solvent.
Owner:ZHEJIANG UNIV
Mobile-internet-based smart community control method
InactiveCN105391778AEasy to unlockDoes not exist to be crackedData processing applicationsTransmissionData synchronizationCommunity management
The invention discloses a mobile-internet-based smart community control method. The method comprises the following steps: specific information of a community is reported and recorded into a xiaoya community platform and is stored into a aliyun server; proprietors and residents carry out home authentication and become users of the xiaoya community platform; data synchronization is carried out, and users of the community, unit management equipment, communication management equipment and wall management equipment are connected to become friends in a friendly environment by the community platform; and the community platform carries out various work containing multiple responses to one calling, call forwarding, audio-video switching, proprietor password customization, visitor password authorization, key case providing, two-dimensional-code-based door opening, warning and capturing, and self-service advertising and the like. According to the invention, the provided xiaoya community platform relies on the internet and the traditional product mode of building intercom and entrance guard is changed. Therefore, the user does not need to interact with the product directly and can experience convenience services like video placing, unlocking, and warning and the like by the mobile internet, thereby bringing great convenience for the user.
Owner:深圳市沃慧生活科技有限公司
Low-temperature preparation method of ceria nano-crystalline microsphere of graduation structure
InactiveCN101584981ASimple processEasy to controlOther chemical processesRare earth metal compoundsCerium nitrateHigh absorption
The invention discloses a low-temperature preparation method of ceria nano-crystalline microsphere of graduation structure. The non-aqueous system low-temperature preparation method is used and cerium chloride, ammonium ceric nitrate, cerium nitrate or cerium sulfate is used as the precursor and benzyl alcohol is used as solvent and surfactant and the raw materials react for a certain time in oil-bath heating condition to obtain the ceria nano-crystalline microsphere powder of graduation structure. The prepared ceria has three-dimensional graduation spheroidal structure. The ceria nano-crystalline microsphere powder of graduation structure can quickly and effectively absorb the inorganic and organic pollutant in waste water at room temperature with very high absorption capacity. The low-temperature preparation method has features of simple technology, low cost, friendly environment, high yield, accordance with the practical production requirement.
Owner:XUANCHENG JINGRUI NEW MATERIAL CO LTD
Colorimetric analysis method for measuring content of glucose and activity of glucose oxidase
InactiveCN101655493ARapid responseShort reaction timeMicrobiological testing/measurementColor/spectral properties measurementsGlucose oxidase activityColorimetric analysis
The invention relates to a colorimetric analysis method for measuring the content of glucose and the activity of glucose oxidase, which is an efficient, quick and sensitive colorimetric method for measuring the content of the glucose or analyzing the activity of the glucose oxidase in a sample. The evaluation system has the characteristics of simple and practical method, mild reaction system, friendly environment, less sample consumption and good analytical repeatability; and in addition, the condition required for analysis is not high, and accurate analysis can be realized only by utilizing the ordinary ultraviolet-visible spectrophotometer in a general laboratory. Compared with the conventional o-diaminobenzene method, the Fitton method and the electrochemical method, the colorimetric analysis method can avoid trivial operation steps effectively, reduce the consumption of time and manual labor, and reduce the influence of environmental factors to the sensitivity of detecting enzymatic activity effectively. Therefore, the novel glucose oxidase analysis method can be widely applied in the fields of food production, brewing, beverages, medical detection and eassay, biochemical research and the like.
Owner:CHENGDU ORGANIC CHEM CO LTD CHINESE ACAD OF SCI
Integrated device for dust adsorption and air-entrapping
ActiveCN101758331AImprove processing qualityImprove vacuuming effectLaser beam welding apparatusLaser processingCoupling
The invention provides an integrated device for dust adsorption and air-entrapping with adjustable installation height. The integrated device for dust adsorption and air-entrapping comprises a lens air blowing device, an air-entrapping protection cover and a telescopic cover for connecting the lens air blowing device and the air-entrapping protection cover, wherein the telescopic cover has a function of extending and contracting so as to adjust the height of the whole device, the lens air blowing device and the air-entrapping protection cover are both connected with a quick coupling, and a speed control valve connected with the quick coupling. The integrated device for dust adsorption and air-entrapping with the adjustable installation height can effectively absorb and remove soot produced by laser processing, isolate the pollution of soot to a laser focus lens, create an environment-friendly environment for the laser processing and improve the quality of the laser processing. The device has the advantages of simple structure, safety, reliability and low maintenance cost, and is very suitable for equipment utilizing galvanometer scanning to carry out laser processing.
Owner:HANS CNC SCI & TECH
Preparation method of panipenem
The invention relates to a preparation method of panipenem. Firstly, methyl acetoacetate and p-nitrobenzyl alcohol are taken as raw materials to prepare panipenem parent nucleus by six steps of reactions: ester exchange reaction, diazo reaction, enolization reaction, substitution reaction, hydrolysis reaction and ring closing reaction; then, (3R)-3-hydroxy-pyrrolidine hydrochloride, nitrobenzyl chroformate ester are taken as raw materials to prepare panipenem side chain by amidation reaction, sulfonylation reaction, nucleophilic substitution reaction and saponification reaction; finally, the prepared panipenem parent nucleus and panipenem side chain are in butt joint by condensation and are subjected to catalytic hydrolysis and imidization to obtain panipenem. The preparation method of panipenem features simple operation, mild reaction condition, friendly environment, high yield, good product purity, low cost and better industrialized production prospect.
Owner:ZHEJIANG NORMAL UNIVERSITY
Nano-loading zero-valent-iron-based PVDF (Polyvinylidene Fluoride) compound material as well as preparation method and application thereof
InactiveCN103084075AEasy reunionSolve the degradabilitySemi-permeable membranesWater contaminantsDispersityFunctional monomer
The invention discloses a nano-loading zero-valent-iron-based PVDF (Polyvinylidene Fluoride) compound material as well as a preparation method and application thereof. The main preparation method comprises the following steps of: (1) pretreating a PVDF microfiltration membrane; (2) functioning the PVDF filter membrane by taking acrylic acid (AA) as a functional monomer; (3) respectively immersing the functioned PVDF filter membrane into sodium salt and soluble iron salt solutions for ion exchange, loading iron ions on the functioned PVDF filter membrane; and (4) immersing the PVDF filter membrane into a borohydride salt solution so as to prepare the nano-loading zero-valent-iron-based PVDF compound material under the strong reduction action. By respectively repairing simulative dyeing wastewater, heavy metal wastewater and anionic organic wastewater at the room temperature through using the reduction function of the material, the nano-loading zero-valent-iron-based PVDF compound material as well as the preparation method and the application thereof disclosed by the invention are conveniently and simply operated and easily recycled, have the advantages of low cost and good dispersity of nano iron particles, and are capable of reducing ecological risks caused by that the nano iron particles flow into water so as to improve the service cycle of the compound material. The nano-loading zero-valent-iron-based PVDF compound material can be regarded as an environment-friendly environment restoration material.
Owner:KUNMING UNIV OF SCI & TECH
Novel surrounding purifying material as well as preparation and use thereof
InactiveCN101347127AGood chemical stabilityImprove thermal stabilityBiocideDisinfectantsFiberPack material
Owner:SHANGHAI NORMAL UNIVERSITY
Preparation method for visible light photocatalyst prepared by CdS quantum dot sensitization Zn1-xCdxs and photodecomposition of water into hydrogen
InactiveCN101940933AEasy to operateNo heat treatment requiredCatalyst activation/preparationHydrogen productionGeneration rateDecomposition
The invention relates to a preparation method for a CdS quantum dot sensitization Zn1-xCdxs sosoloid photochemical catalyst (x is less than or equal to 0.02) having the visible light photocatalytic decomposition aquatic hydrogen activity. In a cation exchange hydrothermal method, ZnS nanoparticles and a cadmium nitrate solution are used as a precursor, and the preparation is carried out by controlling the proportioning of reactants, the reaction temperature, the reaction time, and the like. The preparation method comprises the following steps of: ultrasonically dispersing the ZnS nanoparticle precursor in deionized water; adding the cadmium nitrate solution until the atomicpercent of cadmium to zinc in the system is larger than 0 to 80%; stirring for 30 minutes at room temperature and then removing into a hydrothermal kettle of 100ml; carrying out a hydrothermal reaction for 5 to 24 hours at the temperature of 100 to 200 DEG C; successively washing the collected solid sediments with water and ethanol; and drying for 10 hours at the temperature of 60 DEG C to prepare the CdS quantum dot sensitization Zn1-xCdxs sosoloid visual light photocatalyst (x is less than or equal to 0.02). The invention can ensure that the CdS quantum dot sensitization Zn1-xCdxs sosoloid visual light photocatalyst (x is less than or equal to 0.02) has the advantages of high hydrogen generation rate and no noble metal load requirement; and the method has the advantages of simple operation, no high temperature processing requirement, friendly environment and low cost.
Owner:WUHAN UNIV OF TECH
Method for recovering valuable metal element in waste phosphor by using phosphonium ionic liquid
InactiveCN103924084AImprove use valueReduce acid consumptionProcess efficiency improvementRare-earth elementPhosphonium
The invention relates to a method for recovering a valuable metal element in waste phosphor by using phosphonium ionic liquid. The method comprises the following steps: collecting phosphor in a waste fluorescent lamp and taking as an initial raw material, using a strong alkaline compound for high temperature roasting to prepare an alkali fusion object, directly using nitric acid for leaching to obtain an insoluble substance leached by water and an acidic material liquid, wherein acidity of the material liquid is 0.1-3.0mol / L, a difunctional ionic liquid extractant [P6,6,6,14][P204] or [P6,6,6,14][P507] as an extractant, isooctyl alcohol is taken as an additive, a diluent selects n-heptane or kerosene, under condition of weak acid, using coexisted mass aluminium nitrate salt as a salting-out agent, extracting and recovering the rare earth element in a phosphor leachate, and then acquiring an organic extract loaded with rare earth ions and a raffinate aqueous solution with rich aluminium nitrate salt. According to the invention, valuable metals in the waste fluorescent lamp can be recovered and used, the process flow is simple, and the method has the advantages of and friendly environment.
Owner:NANTONG UNIVERSITY
Method for removing metallic impurities in boric acid by complex crystallizing method
InactiveCN101575100ANo pollution in the processSimple processBoron-oxygen compoundsChemical productsSolvent
The invention discloses a method for removing metallic impurities in boric acid by complex crystallizing method, belonging to the technical field of producing refine chemical products. The method comprises the following steps: taking industrial boric acid as raw material, mixing with solvent, dissolving at a certain temperature, and adding auxiliary agent and complexing agent, after agitating and reacting for certain time, hot filtering, cooling and re-crystallizing, centrifugally separating, washing, drying to obtain the crystal product, which is highly pure boric acid, wherein purity of the product is 99.99%. The invention has evident advantages on the aspect of raw material cost, product performance, technical flow, friendly environment and economical benefit, is suitable for industrial production, and can satisfy the special requirements on boric acid in high technology fields such as optical material, special glass, communication optical fiber and crystal material.
Owner:DALIAN UNIV OF TECH
Multielement resin base carbon compound disc-type braking pad and preparation method thereof
ActiveCN102635653AImprove wear resistanceImprove high temperature resistanceFriction liningLow noiseSulfide
The invention discloses a multielement resin base carbon compound disc-type braking pad and a preparation method thereof. The braking pad is obtained by carrying out mould pressing and forming once on the following raw materials: unmodified phenolic resin, organosilicone modified phenolic resin, polyacrylate modified phenolic resin, polyacrylonitrile carbon fiber, artificial granular graphite, natural crystalline flake graphite, granular coke, silicon carbide, aramid pulp, compound mineral fiber, steel fiber, red copper powder, ferrous sulfide and barium sulfate. The product disclosed by the invention has the advantages of high temperature resistance, ablation resistance, small heat expansion coefficient, high specific strength, high specific modulus, good abrasion resistance, low noise, excellent initial performance, short breaking-in period, small heat fade, long service life, excellent pedal comfort degree, excellent high temperature and high speed performance and stable abrasion grade under different braking conditions, the effect on considering the good abrasion resistance and low noise is achieved, no dust is generated during braking, and various materials are all environment-friendly environment-protection materials. The multielement resin base carbon compound disc-type braking pad also has the function of automatically cleaning the braking disc.
Owner:JINAN GOLD PHOENIX BRAKE SYST
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