459results about How to "Has industrial application value" patented technology

The invention discloses a halomonas strain and application thereof. The halomonas strain is a halomonas sp. TD01 with a preservation number of CGMCC NO.4353. Experiments indicate that the halomonas sp. TD01 can effectively accumulate polyhydroxyalkanoates (PHA) in a mineral medium (MM) and provides a better guarantee for the biosynthesis of the PHA and PHBV (poly(hydroxybutyrate-hydroxyvalerate)). The halomonas strain has the advantages of simple nutrient requirement, no need of sterilization in a fermenting process, capability of continuous implantation and simpleness and easiness in control. Methods for preparing the PHA by using the halomonas sp. TD01 all lower the production cost from varying degrees and increase the yield of the PHA; and the obtained PHA has the molecular weight of above 500kDa and has an industrial application value.

The invention discloses a method for preparing a mercury-free catalyst for the synthesis of vinyl chloride by acetylene method. In the method, the active components of the catalyst are highly dispersed and bonded to the surface of the carrier by carrying out surface modification treatment on the catalyst carrier and applying ultrasonic loading technology. On the group, a firm load is formed in the internal pores of the carrier, so that while improving its catalytic performance and stability, it can greatly reduce the loading of the required active components and reduce the cost of the catalyst. The method is especially suitable for preparing supported noble metal catalysts. The supported noble metal catalysts prepared by the method of the present invention can reach and exceed the catalytic activity of the currently used mercuric chloride catalysts in the case of a very small amount of loading. And stability, has industrial application value, and is of great significance in environmental protection and promoting the sustainable development of my country's polyvinyl chloride industry.

The invention relates to a preparation method of a monodispersed vaterite type calcium carbonate microsphere, which comprises the following steps of: (1) preparing a calcium salt aqueous solution with the concentration of 30-150mmol/L, and then, adjusting the pH value of the calcium salt aqueous solution to 8.5-10; (2) preparing a carbonate or hydrocarbonate aqueous solution with the concentration of 30-150mmol/L, and then, adjusting the pH value of the carbonate or hydrocarbonate aqueous solution to 8.5-10; (3) preparing a functional hyperbranched polyglycerol aqueous solution with the concentration of 20-400mg/L, and then, adjusting the pH value of the functional hyperbranched polyglycerol aqueous solution to 8.5-10; (4) mixing and uniformly stirring the carbonate or hydrocarbonate aqueous solution, the calcium salt aqueous solution and the functional hyperbranched polyglycerol aqueous solution at the temperature of 10-35 DEG C, and aging for 1-12h; and (5) centrifuging or filtering the mixed solution, cleaning a sediment, and drying to obtain the monodispersed vaterite type calcium carbonate microsphere. The monodispersed vaterite type calcium carbonate microsphere prepared by using the preparation method provided by the invention has the advantages of uniform particle size, stable crystal form and industrial application value.

The invention discloses a cross-linked polypropylene, the cross-linked polypropylene is alpha-silane cross-linked polypropylene, and the cross-linked polypropylene is composed of the following raw materials in parts by weight: 100 parts of polypropylene, 0.10 to 0.50 part of peroxide, and 2.0 to 6.0 parts of alpha-silane. The alpha-silane cross-linked polypropylene is suitable for being used as a 3D printing material, a foaming material and a stretching-resistant braid material, and applied to other application fields, in which the material can replace nylon; compared to nylon, the material is lighter and more environment-friendly, furthermore, the cost of the material is lower, and thus the material has a very important industrial application value.

The invention relates to the field of anti-reflection technology for the surface of glass, and concretely relates to a nanometer core-shell silicon dioxide microsphere and a composite coating solution which is compounded by the nanometer core-shell silicon dioxide microspheres and aluminum silicon sol as well as preparation methods thereof. A cation type polystyrene emulsion is used as a hard template in order to prepare silicon dioxide dispersion liquid with a nanometer core-shell structure, the dispersion liquid and the aluminum silicon sol are compounded in order to prepare the coating solution for an antireflection film, toughening treatment is carried out for the coating solution in order to obtain the antireflection film. The raw materials are easy to obtain, and the antireflection film with a hollow structure is prepared by a simple process; pore spaces are arranged in particles and are not arranged in a silicon dioxide network, so that high light transmittance of the film is guaranteed, the light transmittance reaches 94.5% or above, and the porosity is high; the film has excellent smudginess resisting performance, the antireflection film and a glass substrate can be firmly combined, and the hardness of the film is high; because the surface of the film is compact, the film has good blocking effects for steam erosion, good weatherability, and industrialized application values.

The invention relates to the field of solid lubricating, in particular to a high-performance high temperature solid self-lubricating coating and a preparation method thereof, aiming at solving the problem that parts of a machine (such as a foil air bearing) are worn when in operation from low temperature (minus 55 DEG C) to high temperature (800 DEG C). The high temperature solid self-lubricating composite coating adopts a composite powder composed of NiCr, Cr2O3, Ag and eutectic BaF2/CaF2, wherein NiCr is an adhesive, Cr2O3 is a wear-resistant phase, Ag is a low temperature lubricating agent, and the eutectic BaF2/CaF2 is a high temperature lubricating agent. The NiCr powder, Ag powder and the eutectic BaF2/CaF2 powder are all prepared by adopting the ultrasonic gas atomization technology, and the composite powder is prepared by adopting a mechanical mixing method. The high temperature solid self-lubricating coating is prepared by adopting the atmosphere plasma spraying technology. The high temperature solid self-lubricating coating in the invention can avoid or reduce wear of the parts of the machine running at high speed and high temperature (such as wear of a foil and a shaft of the foil air bearing), thus expanding working temperature and speed of the machine in operation and having important industrial application value.

A catalyst for producing methacrylic acid from methacrolein through vapor-phase catalytic oxidation which comprises as essential active ingredients molybdenum, vanadium, phosphorus, and copper, characterized by being one obtained using copper acetate as all or part of the copper material necessary for the catalyst preparation. By using the catalyst, methacrolein can be reacted at a high conversion and methacrylic acid can be produced with high selectivity. The catalyst is usable also in reactions under high-load conditions.

The invention discloses one-component addition type liquid silicone rubber and a preparing method thereof. The one-component addition type liquid silicone rubber is formed by basic rubber, modified additives, platinum complexes, hydrogen-containing polysiloxane and alkynol inhibitors according to a certain ratio, wherein the basic rubber is formed by organic polysiloxanes and hydrophobic silicon dioxide with different viscosities and vinyl contents at the vinyl sealing end. The preparing method includes basic rubber preparing and liquid silicone rubber preparing. The liquid silicone rubber is ultra-low in viscosity, good in flowing property, strong in adhesion, convenient to use, easy to operate and good in storage stability. The preparing method is simple, practical, low in cost and applicable to large-scale production and has an industrial application value.

The invention provides a preparation method of a siliceous molecular sieve, in particular to a gelatin crystallization method. The siliceous molecular sieve is synthesized under the condition of a high-concentration organic base template; a silicon source and the high-concentration organic base template, or the silicon source, a titanium source and the high-concentration organic base template are mixed in a certain proportion to prepare the precursor lyosol of the molecular sieve; the lyosol is aged for 1 to 10 h at ambient temperature, so as to obtain precursor lyogel; and the lyogel is put into a high-pressure crystallization kettle to be crystallized for 3 to 7 d at the temperature of 200 DEG C, and then is washed, dried and roasted, so as to obtain the S-1or TS-1 molecular sieve. Through the adoption of the method, the concentration of the template is increased, and a precursor liquid is crystallized in a gel state, so as to improve the productivity of the single kettle and reduce the production cost. S-1 and TS-1 molecular sieve catalysts prepared by using the method are respectively applied to the cyclohexanone-oxime gas phase reaction for preparing caprolactam and the cyclohexanone ammoximation reaction for preparing cyclohexanone oxime, and both achieve better catalytic effects. Therefore, the preparation method has an industrial application value.

The invention discloses a thin film transistor on the basis of metal oxide and a preparation method and application thereof. The preparation method comprises the following steps of: (1) making a buffer layer; (2) depositing a gate metal layer on the buffer layer; (3) preparing a gate insulation layer on the gate metal layer by using an anodic oxidation method, wherein the part in the gate metal layer, on which an oxide film does not need to be deposited, is protected by using a photoresist; (4) removing the photoresist; (5) removing an unrequired metal lead; (6) preparing an active layer on the gate insulation layer; and (7) according to the designed thin film transistor structure, depositing and patterning source and drain electrodes, a pixel electrode and a protection layer or an etched barrier layer. According to the invention, pure Al or Al alloy is used as gate metal and the gate insulation layer is prepared by using the anodic oxidation method. The performance of the gate insulation layer can be changed by regulating the components of the gate metal, so that the electrical properties of the thin film transistor are improved.

The invention provides a new preparation method for a crystal form Gefitinib Form 1, which comprises the following steps: dissolving Gefitinib into one type or multiple types of solvents of ethanol, isopropanol and butyl alcohol; cooling; and crystallizing to prepare the crystal form Gefitinib Form 1.

The invention relates to a preparation method of a graphene/molybdenum disulfide composite material. The preparation method comprises the following process steps: (1) mixing glucose with ammonium tetrathiomolybdate, and performing grinding in an agate mortar; (2) mixing sodium chloride with potassium chloride, and performing ball milling in a ball milling machine; (3) uniformly mixing the material obtained in the step (1) with the material obtained in the step (2), and performing preheating treatment; (4) placing the mixed material after preheating treatment in a square porcelain boat, placing the porcelain boat in the middle position of a tubular furnace, leading inert gas for protection, and performing calcination under a certain heating rate; (5) performing heat preservation treatment after calcination; (6) under inert-gas protection, cooling naturally to room temperature, and taking out samples; (7) cleaning the obtained mixture with deionized water, and performing vacuum filtration so as to obtain products. According to the preparation method disclosed by the invention, cheap glucose is used as a carbon source, so that a new method for synthetizing graphene/ molybdenum disulfide nanocomposite materials is obtained, the synthesis steps are simple, the cost is low, and the preparation method has an industrial application value.

The invention discloses a method for preparing high pure gold and enriching silver, platinum and palladium from silver anode mud. The process of separating silver with nitric acid, recycling silver, platinum and palladium with silver-enriched liquid, decomposing silver separating slag with aqua regia and preparing high pure gold with a one-time unsaturation reduction method is adopted and comprises the steps: leaching the silver anode mud with nitric acid to obtain separated silver, adding sodium chloride into the silver separating liquid to deposit the silver to obtain silver chloride sediment and silver depositing liquid, adding iron powder into the silver chloride sediment for replacement, returning the crude silver back to a Kaldo furnace for melting, and adding sodium hydrogen sulfite into the silver depositing liquid to reduce, deposit and recycle platinum and palladium; performing gold separating on the silver separating slag with aqua regia to obtain gold separating liquid and gold separating slag, performing the iron powder replacement step on the gold separating slag, adding the sodium hydrogen sulfite into the gold separating liquid to perform unsaturation reduction to obtain gold powder and gold depositing liquid, washing, drying and ingotting the gold powder to obtain a product gold ingot, and adding the sodium hydrogen sulfite into the gold depositing liquid to reduce and recycle the platinum and palladium for the second time to obtain the crude gold powder, and returning back to the previous steps. The method solves the problems of long leaching flow, high agent cost, complex operation, more devices and low recycle rate of the silver anode mud.

The invention relates to a method for simultaneously extracting alliin and garlic enzyme from garlic, which comprises: full ultrasonic cell wall breakage of mixture of peeled garlic and a polar organic solvent with the mass being at least four times of the mass of the garlic (pharmaceutically acceptable) and the volumetric water content less than or equal to 10 percent under the conditions with the pH being 5.5-6.8 and the temperature being less than or equal to 35 DEG C, solid-liquid separation, filtration and separation of supernatant by molecule ultrafiltration membranes with the molecular weight reducing gradually, wherein the molecular weight of the molecule ultrafiltration membrane at the last stage is 10,000 to 3,000, concentration of the filtrate by a nano filtration membrane, crystallization of the concentrated solution, separation to obtain crystals, and drying under conditions with the temperature less than or equal to 35 DEG C. The problem of reaction of the alliin and the garlic enzyme in cell wall breakage of the garlic can be solved effectively, and garlic extracts with the alliin content being 2.2-98 percent and the activity ratio of the garlic enzyme being 80-900 can be extracted and enriched, the losses of effective ingredients can be reduced, the yield and purity can be improved, the cost is low, the production requirements of cleanness and low energy consumption can be satisfied, and the method has a practical value in industrial applications.

The invention discloses a solar selective absorbing coating as well as a preparation method and application thereof. The solar selective absorbing coating sequentially comprises a substrate layer, a TiAlN film absorbing layer and a SiO2 film antireflection layer from bottom to top; preferably, the TiAlN film absorbing layer is formed on a substrate by adopting a reaction magnetron sputtering method; and the SiO2 film antireflection layer is formed on the absorbing layer by adopting the reaction magnetron sputtering method. The preparation technology disclosed by the invention is clean, simple and easy to control; and the prepared coating has high yield within the solar spectral range and low emissivity in an intermediate far infrared area. In addition, the solar selective absorbing coating has medium-high temperature stability, can be applied to the fields of a vacuum or non-vacuum flat plate heat collector, a building integrated heat collector and the like, and meets the use demand of a solar thermal collector at the medium-high temperature.

The invention relates to a mesoporous manganese oxide nano material and a preparation method thereof. In the invention, a uniformly distributed mesopore with the aperture of 2 to 10 nanometers and a mixture of oxyhydrogen manganese oxide and manganic manganous oxide or a mangano-manganic octoxide monocrystal granule or a manganese sesquioxide monocrystal granule with the granule particle diameter controlled within the range of 20 to 80 nanometers are prepared by the hydrothermal function of manganese metal, manganese acetate and ammonia and the subsequent calcination control, and the uniformly distributed mesoporous, the mixture of oxyhydrogen manganese oxide and manganic manganous oxide, the mangano-manganic octoxide monocrystal granule and the manganese sesquioxide monocrystal granule play a catalytic action to a toluene combustion reaction. The invention has simple preparation method, loose synthesizing condition, easy repetition and cheap raw materials and can carry out large-scale production.

The present invention relates to chain or meshed colloidal silica, super hydrophilic self-cleaning anti-reflection coating liquid and a preparation application. The colloidal silica is obtained by reaction of raw materials containing a solvent, water, a catalyst, a stabilizer and two or more alkoxysilane. According to the present invention, the coating liquid is obtained by combination of spherical colloidal silica with the hydroxyl chain or meshed colloidal silica and at least one selected from a coupling agent and a cross-linking agent. When the coating liquid is applied to the photovoltaic glass, the surface of the photovoltaic glass is coated, wherein the coating has a relatively high porosity and high light transmittance, and gain on the power of the photovoltaic modules is obvious. The anti-reflection coating is firmly bonded with the glass substrate, and the coating is high in hardness, and excellent in weather resistance performance, thereby having industrial application value.

The invention discloses a method for preparing a mesoporous molecular sieve MCM-48. The method comprises the steps of extracting effective ingredients in coal ash as silicon sources by adopting a single template agent cetyl trimethyl ammonium bromide (CTAB); and synthetizing MCM-48 under alkaline medium by a hydrothermal method. The synthetized mesoporous material is regular in ducts, single in aperture distribution, high in order degree, and large in specific surface area. The method is simple and feasible in actual operation, economic and environment-friendly, and can provide a new path for 'recycling' utilization of the coal ash; and the synthetized sample has practical application value.

The invention provides a method for producing polyhydroxyalkanoates (PHA) through halophilic bacterium sterilization-free fermentation. The method comprises the following steps of (1) inoculating halophilic bacteria into a culture medium for fermentation culture; (2) after the fermentation to a logarithmic phase, supplementing a first supplementing material culture medium for first stage materialsupplementation fermentation; (3) after the first stage material supplementation fermentation is completed, supplementing a second supplementing material culture medium for second stage material supplementation fermentation; (4) after the second stage material supplementation fermentation is completed, supplementing a third supplementing material culture medium for third stage material supplementation fermentation until the fermentation is completed, wherein the first supplementing material culture medium in step (2) and the second supplementing material culture medium in step (3) comprise carbon sources and nitrogen sources; the third supplementing material culture medium in step (4) only comprises carbon sources; in addition, the nitrogen source content in the second supplementing material culture medium in step (3) is lower than the nitrogen source content in the first supplementing material culture medium in step (2).

The invention discloses a method for preparing silicon-based oxynitride fluorescent powder, which comprises the following steps of: weighing corresponding raw materials and silica powder based on stoichiometric proportion of each element in the chemical formula of the silicon-based oxynitride fluorescent powder, after uniformly mixing the raw materials and the silica powder, raising the temperature to 800 to 1,000 DEG C under any one of the conditions of condition a to condition c, performing reduction reaction under the condition c or the condition d, and cooling the reaction product to roomtemperature to obtain the silicon-based oxynitride fluorescent powder, wherein the condition a is vacuum; the condition b is the atmosphere of inert gases; the condition c is the atmosphere of nitrogen-containing gases; and the condition d is the atmosphere of reductive gas. The silicon-based oxynitride fluorescent powder doped with various luminescent ions and prepared by the method has bright fluorescence under the excitation of ultraviolet ray, near ultraviolet or visible light. The method has the advantages of low preparation temperature of the product, high phase purity of the product, controllable particle size of the product, good luminous intensity of the product, low cost, simple process and the like, and is easy to enlarge industrialization.

The invention discloses a combined catalyst for improving denitration performance and an application thereof, which belongs to the field of catalysts. In the catalyst, industrial anatase crystal form TiO2 is taken as a carrier; V2O5-WO3/TiO2 is put at the front section of MnOx-CeO2/TiO2, and is called front section; MnOx-CeO2/TiO2 is called back section; the front section refers to a section where an air current main body is contacted firstly; the back section refers to a section where the air current main body is contacted secondly; the mass ratio of the front section to the back section is 1:1-1:3; V2O5 accounts for 2-4 percent of the mass of the carrier TiO2; WO3 accounts for 8-10 percent of the mass of the carrier TiO2; Mn accounts for 10-20 percent of the mass of the carrier TiO2; CeO2 accounts for 8-10 percent of the mass of the carrier TiO2; and MnOx is taken as the general name of MnO2 and Mn2O3. The combined catalyst can be applied to an integral catalyst for industrial application. The combined catalyst has a wider active temperature window; particularly, the removing efficiency of NOx by NH3-SCR is greatly increased under the exhaust low-temperature wording condition of a diesel engine; and moreover, the same NOx removing efficiency as the conventional catalyst can be obtained at a medium-high temperature section.

The invention relates to a method for deep treatment on industrial wastewater discharged by a styrene-butadiene rubber production device and belongs to the field of wastewater multilevel treatment. Water treatment devices such as a pre-treatment unit, a sludge adsorption unit, an aerobic biochemical treatment unit, a flocculation and filtration unit and a high-grade oxidation treatment unit are orderly connected and combined; and discharged wastewater treated by the above water treatment devices has COD less than or equal to 40mg/L and NH3-N less than or equal to 5mg/L. The method solves the problem that the prior art has a high treatment cost and poor treatment effects, is a deep treatment method having the advantages of stable, safe and reliable operation, high pollutant removal rate and low operation cost, and realizes stable and standard discharge of industrial wastewater produced by a styrene-butadiene rubber production device. Compared with the prior art, the method reduces a high-grade oxidation phase Fenton's reagent use amount by about 30%, improves treatment depth by 15% and has an industrial application value.

The invention relates to a sort of cerium-based block amorphous alloy, which is formed primarily from the cerium and contains at least 50% amorphous phase percentage by volume, and can be represented by the formula: CeaAlbNicCudMe, wherein 50<=a<=80, 5<=b<=20, 5<=c<=20, 5<=d<=20, 0<=e<=10, and a+b+c+d+e=100, and said transition metal elements M is Sc, Nb, Ti, V, Cr, Mn, Fe, Co, Y, Zr, Mo, La, Pr , Nd or Hf. The preparation of the alloy is in the electric arc furnace of argon atmosphere absorbed with the titanium and the steps is: smelting each group according to needed atomic matching, mixing them evenly, and getting the key metal ingoting after cooling, smelting the ingoting again by normal chill casting method, inhaling the flux to the water-cooled copper mould through the suction apparatus in the furnace, then getting the alloy.