30results about How to "No phase transition" patented technology

The invention discloses a lithium-lanthanum-zirconium oxide-based solid electrolyte material with stable surface, and a preparation method and an application thereof. The solid electrolyte material comprises an inner core and a coating layer which coats the surface of the inner core; the inner core is a lithium-lanthanum-zirconium oxide-based solid electrolyte (LLZO); and a material of the coatinglayer is an oxide. The inner core part, namely, the LLZO is coated with the oxide coating layer; and the LLZO can maintain a stable three-dimensional phase structure with high ionic conductivity, sothat phase change or thermal decomposition does not occur. The material of the oxide coating layer can change the chemical composition and surface acid-base property of the surface of the LLZO, and can block the erosion of air and water to the LLZO, so that the chemical stability of the LLZO in the air and the water is greatly improved, the application range, the processing environment and the using condition of the LLZO are expanded, and the energy density and the cycling stability of a lithium-lanthanum-zirconium oxide-based battery are improved.

The invention relates to a treatment method for reverse osmosis concentrated water. Aiming at reverse osmosis concentrated water generated by a reverse osmosis process of a double-membrane process, the method comprises: firstly removing organic matters and scaling ions such as calcium, magnesium and the like in the reverse osmosis concentrated water by using a nanofiltration membrane, then feeding the nanfiltration contributing water into the reverse osmosis system to be further concentrated, and then feeding the concentrated nanfiltration contributing water into a membrane distillation system for treatment and recycling; and adding alkali into the concentrated water generated by the nanfiltration system to remove scaling ions such as calcium, magnesium and the like and part of organic matters and adsorbing the substances through powdery active carbon to discharge the up-to-standard concentrated water. According to the treatment method for reverse osmosis concentrated water provided by the invention, the organic matters and scaling ions such as calcium, magnesium and the like which cause pollution to a subsequent reverse osmosis membrane are removed by virtue of a nanofiltration technology firstly, so that the stable operation of the reverse osmosis system is ensured; then the nanofiltration contributing water is further concentrated by virtue of the reverse osmosis system, so that the water inflow of membrane distillation is greatly reduced, the recovery rate of the reverse osmosis concentrated water is improved, and the treatment cost for the reverse osmosis concentrated water is lowered. The treatment method has good economical and social benefits.

The invention discloses a supercritical carbon dioxide circulating fluidized bed coal fired boiler. Supercritical carbon dioxide is adopted to replace steam in an existing circulating fluidized bed boiler to serve as a working medium for absorbing heat and acting, and the heat absorption process of the working medium comprises the steps of one-time flow division and one-time re-heating. The heating face of the working medium of the supercritical carbon dioxide circulating fluidized bed boiler comprises a carbon dioxide cold wall screen type heater and a high temperature reheater which are arranged in a hearth. An externally arranged a superior economizer treating dust as a heat source is arranged on a material recycling device section between an outlet of a separator and the hearth in parallel. A heating face in a rear smoke channel in the flowing direction of smoke comprises a low temperature reheater and a subordinate economizer. The invention further discloses a power generation system driven by the supercritical carbon dioxide circulating fluidized bed coal fired boiler to generate power. The supercritical carbon dioxide circulating fluidized bed coal fired boiler enhances smoke heat transmission of a high temperature section of the reheater, and meanwhile relieves heat demanded pressure of the rear smoke channel, the emission amount of pollutants can be effectively reduced, the smoke emission temperature can be effectively decreased, and the boiler efficiency is improved.

The invention discloses a nanometer zirconia abrasion sealing composite paint material, which comprises the following parts: base-phase material, filling material A, filling material B, adhesive and water, wherein the base-phase material is 70-75% in the base-phase material, filling material A and filling material B; the filling material A is 14-20% in the base-phase material, filling material A and filling material B; the filling material B is 9-15% in the base-phase material, filling material A and filling material B; the adhesive is 2-5.5% in the base-phase material, filling material A and filling material B; the water is 70-78% in the base-phase material, filling material A, filling material B and adhesive.

The invention relates to the field of hydrogen production, and discloses a hydrogen production system. The hydrogen production system comprises a heat collection mechanism, a hydrogen production mechanism and a heat exchanger, wherein the heat collection mechanism comprises a heat collector and a liquid metal pipeline, the liquid metal pipeline is connected with a heat collector, the heat collector is used for absorbing heat, and the liquid metal pipeline is filled with liquid metal; and the heat exchanger is respectively connected with the hydrogen production mechanism and the liquid metal pipeline. The invention also discloses a hydrogen production method. The hydrogen production method comprises the following steps: the heat collector collects heat and transfers the heat to liquid metal of the liquid metal pipeline; and the liquid metal is introduced into the heat exchanger to provide heat for the reaction of the hydrogen production mechanism. The liquid metal is used for replacing molten salt as a heat transfer medium, has lower melting point and higher boiling point, can be kept at a liquid state in a large temperature range, does not have phase change and is stable in heat transfer; the liquid metal has the heat conductivity which is far higher than that of nonmetal cooling agents such as air and water and is high in heat transfer efficiency; the mobility is good; and the efficiency and the stability of the hydrogen production system can be improved.

The invention discloses a zirconium alloy for a nuclear reactor. Based on the total weight of the zirconium alloy, the zirconium alloy comprises the following components: 0.1 to 0.2 percent of Nb, 0.7 to 0.8 percent of Sn, 0.3 to 0.4 percent of Fe, 0.05 to 0.25 percent of Cu, 0.01 to 0.1 percent of V, 0.05 or 0.15 percent of Cr, 0.06 to 0.14 percent of O, less than or equal to 100 ppm of C, less than or equal to 80 ppm of N and the balance of Zr. The zirconium alloy disclosed by the invention has high corrosion resistance in high-temperature steam at 400 and high-temperature steam at 427 DEG C and has high yield strength and breaking strength at room temperature; therefore, the safety and efficiency of a nuclear fuel assembly are improved, and the zirconium alloy meets the requirements ofcan materials of a nuclear reactor.

The invention discloses an optimal flow velocity design method for a supercritical ethane long-distance conveying pipeline, and belongs to the technical field of natural gas pipeline design. The method comprises the steps of 1, collecting basic data of an ethane pipeline; 2, establishing a supercritical ethane long-distance conveying pipeline optimal flow velocity design model which takes the lowest annual reduction cost of the ethane conveying pipeline as a target function and comprises supercritical ethane stable conveying constraints; 3, determining an optimization parameter and a feasibleregion thereof; 4, calculating ethane pipeline design parameters; 5, obtaining a target function value; and 6, changing the optimization parameters to obtain a target function value set, and obtaininga minimum value through economic comparison, so that the corresponding flow rate is the optimal flow rate. The method for designing the optimal flow velocity of the supercritical ethane long-distanceconveying pipeline has the advantages of being clear in calculation process, convenient to operate and high in calculation speed, and guidance is provided for safe, economical and efficient design and operation management of the supercritical ethane long-distance conveying pipeline.

The invention relates to a flucloxacillin sodium suspension and a new application thereof. The invention provides the flucloxacillin sodium suspension containing 1 part by weight of flucloxacillin sodium, 3-14 parts by weight of surfactant and 2-20 parts by weight of freeze-drying support agent. The invention further discloses the new application of the flucloxacillin sodium suspension in the preparation of drugs for treating pityrosporum folliculitis.

A reverse osmosis concentrated water re-concentration technology includes the following steps that organic substances and scale-forming ions like calcium and magnesium in reverse osmosis concentrated water are removed by using a nanofiltration membrane; the product is conveyed into a reverse osmosis system for concentration and separation to obtain reverse osmosis concentrated water; the reverse osmosis concentrated water is pretreated for water quality regulation; the product is conveyed into a reverse osmosis concentrated solution treatment system for further concentration; the product enters a membrane distillation system for treatment. The technology has the advantages of being high in rejection ratio, high in water recycling rate, mature in technology and the like. The low-cost re-concentration technology of the reverse osmosis concentrated water is provided, provides effective technical support for meeting the disposal requirement of high-salinity waste water reverse osmosis concentrated water in the chemical industry, and plays an important role in sustainable development and environmental protection in the chemical industry in China.

The invention relates to a mineral feed mould inhibitor and a preparation method thereof. The mould inhibitor consists of the following raw materials in percentage by weight: 20 to 25% of bentonite, 30 to 35% of tourmaline, 5 to 10% of limestone, 15 to 20% of kieselguhr, 15% of organic acid and 5 to 10% of cinnamon oil. The preparation method of the mould inhibitor comprises: weighing each raw material in percentage by weight; respectively grinding the bentonite, the tourmaline, the limestone and the kieselguhr by adopting a secondary wet ball-milling process under a grinding particle size of 0.05 to 0.5mm so as to obtain refined mineral powder; sufficiently mixing the refined mineral powder in a mixer, placing the obtained product into a high-temperature furnace to carry out heat treatment, wherein a heat treatment temperature is 400 to 450 DEG C, and heat treatment time is 2h; sufficiently mixing the mineral powder subjected to heat treatment with the organic acid and the cinnamon oil to obtain the mineral feed mould inhibitor. The mould inhibitor solves the problem of feed mouding, influences feed palatability a little and can supplement mineral elements in a feed, so that the feed can be effectively prevented from being moulded.

The invention discloses an air source heat pump energy station. The energy station comprises a natural energy extraction side module, a heat pump unit module and a user energy supply side module; andthe natural energy extraction side module is connected with the heat pump unit module through an anti-freezing solution circulation pipeline, and the natural energy extraction side module and the heatpump unit module are independently and separately arranged at a distance. According to the air source heat pump energy station, the large-scale effect of the air source heat pump energy station is realized, the scale effect is fully reflected by the large air source heat pump energy station, the capacity of the heat exchanger is fully utilized, and the energy efficiency ratio of the system is improved.

The invention discloses a green oil-in-water microemulsion cleaning agent capable of being diluted without limitation with water and a preparation method thereof, which belong to the technical field of oil stain cleaning agents. Edible oil is adopted as an oil phase; isodecanol polyoxyethylene ether, alkyl polyglucoside (APG) and carboxymethyl chitosan tetradecyl quaternary ammonium salt (14-QACMC) are compounded into a composite surfactant; the oil-in-water microemulsion cleaning agent capable of being diluted without limitation with water is prepared by taking deionized water as a water phase, through compounding of novel surfactants, ultralow interfacial tension and strong infiltration capacity are achieved, the cleaning agent has the effects of rapidly and efficiently dissolving and solubilizing oil stains, the cleaning agent can be diluted infinitely with water, the dilution process is kept transparent, phase transformation and turbidity are avoided, and the stability is good; and the composite material is green and environment-friendly, is easy to preserve, and has strong permeability, large dirt capacity and bacteriostasis and sterilization synergistic multifunctionality.

The invention provides a dental alumina-zirconia eutectic ceramic rod and a preparation method thereof. The invention relates to an anti-aging dental ceramic material and a preparation method thereof.The anti-aging dental ceramic material is composed of alumina and zirconia. The directional solidification of the material is realized by rapid laser beam heating and cooling, and alumina-zirconia eutectic bioceramic with smooth surface is prepared. The XRD results show that after the alumina-zirconia eutectic bioceramic with a drawing rate of 200 [mu]m/s is aged for 145 hours, a tetragonal zirconia phase is observed at the diffraction angles of 35.2 degrees, 40.5 degrees and 41.3 degrees, indicating that the phase transformation of the alumina-zirconia eutectic bioceramic does not occur in the hydrothermal environment, i.e., the alumina-zirconia eutectic bioceramic has excellent aging resistance.

The invention relates to the technical field of chemistry, and discloses a method for extracting and purifying chlorophyll from silkworm excrement. The technical scheme of the method comprises the following steps: soaking 100 parts by weight of the silkworm excrement in 30 parts by weight of water for 30-60 min to prepare softened silkworm excrement; putting the softened silkworm excrement into anextraction tank, mixing and stirring tetrahydrofuran with the silkworm excrement uniformly for 30-60 min to obtain an extraction solution; passing the extraction solution through a ceramic membrane to obtain a permeate; introducing the permeate into a nanofiltration membrane for purification and concentration, and directionally separating chlorophyll; performing vacuum compressing and drying on the purified chlorophyll to prepare a chlorophyll product. The problems that in the existing method for extracting chlorophyll from the silkworm excrement, the chlorophyll has high impurity content andlow purity, quality of the chlorophyll is seriously affected, even the chlorophyll cannot be used due to the high impurity content, and the solvent extraction process used is complicated are solved.

The invention discloses an organic acid salt electronic functional ceramic, a preparation method and application thereof. The chemical composition of theorganic acid salt electronic functional ceramic comprises a single organic acid salt, wherein the organic acid salt comprises an oxalic acid-series organic acid salt, a glutamic acid-series organic acid salt, a citric acid-series organic acid salt, a formic acid-series organic acid salt, an acetic acid-series organic acid salt or a gluconic acid-series organic acid salt. According to the invention, single organic acid salt powder is adopted for sintering, the pressure load during sintering is 150-350 MPa, the sintering temperature is 20-300 DEG C, the heating rate is 10-15 DEG C/min, the sintering time is 40-150 min, and the organic acid salt electronic functional ceramic with the density larger than or equal to 95% is obtained after sintering is completed; the organic acid salt electronic functional ceramic is applied to piezoresistors, microwave dielectric ceramics and magnetic dielectric coupling ceramics; and on the premise of reducing the process difficulty and cost, the electronic functional ceramic with remarkable direct-current voltage-sensitive characteristic or excellent microwave dielectric property is obtained.