Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

149results about How to "Suitable for large-scale application" patented technology

Method for eliminating impurity influence of all-vanadium redox flow battery electrolyte

The invention discloses a method for eliminating impurity influence of an all-vanadium redox flow battery electrolyte. The method comprises the steps of adding a complexing agent into the electrolyte, and fully stirring the electrolyte, wherein the complexing agent is phosphoric acid, inorganic phosphate, hydramine, amino carboxylate, hydroxy carboxylate or organic phosphate. By the method, the steps of impurity elimination during the preparation process of the electrolyte is omitted or reduced, the operation process is simple, the product is rich in raw material, complicated impurity elimination equipment is not needed to be matched, the impurity elimination cost is low, and the method is suitable for application on a large scale; by a mode of adding the complexing agent, impurity metal ions form a complexity body, a reaction electrical pair shifts out of a reaction potential section of an active substance of the all-vanadium redox flow battery electrolyte, the hydrogen evolution promotion effect of the metal ions is eliminated, the hydrogen evolution quantity of the redox flow battery is reduced, the capacity attenuation is reduced, and the lifetime of the redox flow battery is prolonged; and impurity ions introduced during the construction, running and maintenance process of the redox flow battery can be rapidly eliminated, and the method is simple and convenient and is suitable for promotion and application.
Owner:DALIAN RONGKE POWER

Method for separating inorganic/organic components from sludge

The invention discloses a method for separating inorganic/organic components from sludge. The method comprises the following three steps of: sludge conditioning, acid liquor extraction and neutralization treatment. Firstly, through sludge conditioning and sterilization treatment, extracellular polymeric substances are destroyed, cell wall breaking is performed, sludge desanding and sludge dewatering properties are improved, and sufficient extraction of inorganic salt from acid liquor is also facilitated; then, through acid liquor extraction, precipitates, namely soluble calcium salt, iron salt, aluminum salt, heavy metal, phosphate and the like, generated by chemical agents adhered to the sludge are dissolved out and separated, and the sludge is further conditioned. Therefore, the separation of organic matters and inorganic minerals in the sludge is greatly improved, and mechanical separation is easy to achieve through adoption of a physical method by utilizing specific gravity difference. Separated organic components can be used for fuel, sewage plant carbon source reuse and the like, and inorganic minerals can be used for soil remediation materials, building materials and the like. The method can be used for sludge treatment of a sewage treatment plant, sludge treatment for cleaning bottom mud in water environment treatment and ditch cleaning in a pipe network and the like.
Owner:HUATIAN ENG & TECH CORP MCC +1

Composite catalyst as well as preparation method and application thereof

The invention provides a composite catalyst as well as a preparation method and application thereof, and the preparation method comprises the following steps: loading a metal oxide and a doped nitrogen element on a carbon-based material to obtain the composite catalyst, wherein a nitrogen-doped nitrogen-containing precursor is ammonia gas and/or inorganic ammonium salt. According to the composite catalyst, more catalytic active sites are constructed by loading the metal oxide and doping the nitrogen element, and the metal oxide is partially reduced in the nitrogen doping process to form oxygen vacancy, so that the composite catalyst has higher catalytic activity and stability, ozone oxidation is efficiently catalyzed, and the catalytic activity of the composite catalyst is improved. And the efficiency of producing hydroxyl radicals through catalytic ozonolysis is improved. The composite catalyst is simple in preparation method, low in cost, suitable for large-scale application, high in efficiency in catalytic ozonation treatment of wastewater, stable and long in service life, can mineralize organic matters in the wastewater into carbon dioxide and water in a non-selective manner, and has a wide application prospect.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Preparation technique of gradient diffusion impervious layer used for deep submicron integrated circuit Cu interconnection

InactiveCN101702406AImprove bond strength and adhesionImprove thermal stability and failure temperatureSemiconductor/solid-state device manufacturingRadio frequencyIntegrated circuit
The invention relates to a preparation technique of gradient diffusion impervious layer used for deep submicron integrated circuit Cu interconnection, belonging to the technical field of semiconductor integrated circuit manufacture. In the technique, radio frequency magnetic control sputtering coating equipment is adopted to deposit a layer of amorphous TaN on a monocrystal Si substrate, followed by depositing a TaN gradient layer, the content of N in the gradient coating is adjusted by reducing flow of reactant gas N2 gradually, so that the content of N in the prepared impervious layer decreases progressively from inside to outside; after finishing depositing TaN gradient layer in situ, a metal Ta layer is deposited to obtain the double-layer gradient diffusion impervious layer used for deep submicron integrated circuit Cu interconnection. The resistivity can be as low as 112 mu Omega cm, and the thermostabilization temperature can be over 700 DEG C. The preparation technique has the characteristics of simple operation and convenient promotion; the obtained impervious layer material can improve RC delay of interconnected circuits, and enhance the operation speed and stability of semiconductor elements.
Owner:SICHUAN UNIV

Treatment method for inducing maize parthenogenesis with colchicine

The invention relates to a treatment method for inducing maize parthenogenesis with colchicine. The method is characterized in that when female ear filaments are completely exposed, a paper bag is removed; the upper-portion of a flower bud is cut transversely from a female ear flower bud at a place from the top and close to the female ear young ear downward; a part of filaments is cut at the section with a curved graver, such that a cavity with a depth of 5-15mm is formed; an inducing agent which is colchicine treatment liquid is injected into the cavity with a pipette or a syringe, such that the cavity is filled with the liquid and the entire cut surface is wetted by the liquid; and the female ear is sleeved with the paper bag. During the treatment process, no pollen contamination prevention measure such as sealing, blocking, spatial and temporal isolation, and the like is needed. The method has the following advantages: harm to human health caused by treatment liquid dropping, spilling and scratching are avoided; a hard-to-solve pollen contamination problem is thoroughly solved; all filaments can contact the treatment liquid, and treatment liquid retention time is long, such that an induction rate is improved; the treatment liquid is saved by approximately 50%; and compared to a conventional inbred line breeding method, a breeding period is shortened by more than 5 generations.
Owner:SHENYANG TEYIJIA CORN TECH

Ultrahigh-strength high-toughness high-conductivity copper-nickel-tin alloy and preparation method thereof

The invention provides an ultrahigh-strength high-toughness high-conductivity copper-nickel-tin alloy which contains nickel, tine, yttrium, niobium, scandium and cerium elements. The total mass of theyttrium, niobium, scandium and cerium elements is less than or equal to 0.5 percent of the mass of the copper-nickel-tin alloy. The copper-nickel-tin alloy has high strength, toughness and conductivity, and is wide in application range. The invention further provides a preparation method of the copper-nickel-tin alloy. The preparation method of the copper-nickel-tin alloy concretely comprises thesteps of preparing materials according to the mass percent of element compositions, and adopting a gas atomization method for preparing to obtain alloy powder; adopting hot isostatic pressure sintering on the alloy powder to obtain a copper-nickel-tin alloy ingot blank; and carrying out solution treatment and warm deformation strengthening treatment on the copper-nickel-tin alloy ingot blank so as to obtain the ultrahigh-strength high-toughness high-conductivity copper-nickel-tin alloy. According to the preparation method, multiple compound factor strengthening and toughening copper alloys are implemented and utilized, and the obtained copper-nickel-tin alloy has the characteristics of refined crystalline strengthening, strain strengthening, dispersion strengthening and precipitation hardening at the same time so as to obtain high strength, toughness and conductivity.
Owner:CENT SOUTH UNIV

Chinese wolfberry polysaccharide protein removal method based on cloud point extraction

The invention discloses a Chinese wolfberry polysaccharide protein removal method based on cloud point extraction, relating to the technical field of bioengineering. The method comprises the following basic steps: adding a prepared temperature-sensitive block copolymer polyethylene oxide-polypropylene oxide-polyethylene oxide (EOPOEO) solution, mixing with a Chinese wolfberry crude polysaccharide water solution, and carrying out liquid-liquid-phase separation on the system under the induction of temperature, wherein the impurity proteins in the Chinese wolfberry polysaccharide are successfully removed under the action of the polymer phase; after the phase separation, mixing the upper phase of the system with ethanol, and precipitating to obtain a polysaccharide finished product; and meanwhile, cooling the lower phase with enriched temperature-sensitive polymer to precipitate most proteins, and carrying out comprehensive operation (comprising the steps of pH value regulation, electrolyte addition, heating and the like) to form a secondary cloud point extraction system, thereby successfully recovering the temperature-sensitive polymer in the lower phase. The invention provides a separation purification method of Chinese wolfberry pure polysaccharide, which has the advantages of simpler technical process, low cost and environment friendliness.
Owner:JIANGSU UNIV

Preparation method for dye-sensitized solar cell

The invention discloses a preparation method for a dye-sensitized solar cell. The preparation method comprises the following steps of step A, providing a transparent substrate material with a clean surface, and depositing a titanium dioxide compact thin film on the surface of the substrate material by adopting an atomic layer depositing technology; step B, depositing a titanium-contained organic-inorganic composite film on the titanium dioxide compact thin film obtained in the step A by adopting a molecular layer depositing technology; and step C, annealing the material obtained in the step B at the temperature of 400-600 DEG C for 0.5-2 hours, soaking the material after being thermally treated in the dye, taking out and cleaning the material and drying the material to obtain a photo anode of the dye-sensitized solar cell. The dye-sensitized solar cell prepared by the preparation method of the invention is high in photoelectric converting efficiency, good in stability of the devices, simple in the preparation process equipment, mild in reaction conditions, high in production efficiency, lower in cost and energy consumption, free of pollution on the ecological environment, high in repeatability, and suitable for the large-scale application having wider industrial application prospects.
Owner:HUBEI UNIV

Method for electrochemically preparing trifluoromethylsulfonyl fluoride from methylsulfonyl chloride

The invention relates to a method for electrochemically preparing trifluoromethylsulfonyl fluoride from methylsulfonyl chloride, and belongs to the field of fine chemical engineering. The method comprises the following steps: adding methylsulfonyl chloride, a conductive agent and anhydrous hydrogen fluoride into an electrolytic bath to form an electrolyte; subjecting the electrolyte to electrolytic dehydration for 2-10 h under the conditions that the temperature ranges from -10 DEG C to 20 DEG C and the voltage ranges from 3 V to 4.5 V; and under the conditions that the temperature ranges from -10 DEG C to 20 DEG C and the voltage ranges from 5 V to 7.5 V, conducting eletrolysis to obtain electrolysis gas, wherein the electrolysis gas contains trifluoromethylsulfonyl fluoride. According to the method, methylsulfonyl chloride is used as a raw material, a conductive agent and anhydrous hydrogen fluoride are added, an electrochemical fluorination reaction is carried out at a constant voltage, trifluoromethylsulfonyl fluoride can be obtained, wherein the anhydrous hydrogen fluoride is a solvent and a fluorinating agent of the electrolyte. The electrochemical preparation method of trifluoromethylsulfonyl fluoride provided by the invention is simple and convenient to operate, low in cost and suitable for large-scale application.
Owner:PERIC SPECIAL GASES CO LTD

Preparation method of porous titanium dioxide thin film for dye-sensitized solar cell

The invention discloses a preparation method of a porous titanium dioxide thin film for a dye-sensitized solar cell, and belongs to the field of porous material preparation. The preparation method comprises the steps of (1) providing a substrate material with the surface being clean, and depositing a titanium containing organic-inorganic composite film at the surface of the substrate material by adopting a molecular layer deposition technology; and (2) carrying out heat treatment on the prepared substrate material with the titanium containing organic-inorganic composite film being deposited at the surface for 2-5h at a temperature of 400-600 DEG C so as to acquire a porous titanium dioxide thin film. The thickness of the prepared porous titanium dioxide thin film can be controlled precisely, pore distribution is uniform, the specific surface area is large, the uniformity and crystallization are good, the impedance is small, the photo-generated current density is significantly improved, and the photoelectric performance can be greatly improved. In addition, the preparation method is simple in process equipment, small in number of operation procedures, mild in reaction condition, high in production efficiency, low in cost and energy consumption, pollution-free for the ecological environment, good in repeatability, excellent in actual use effect and suitable for large-scale application.
Owner:HUBEI HUACHENG TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products