95results about How to "Miscellaneous" patented technology

The invention discloses a method for regenerating a positive active material from waste lithium iron phosphate batteries. The method comprises the steps as follows: 1) waste lithium iron phosphate batteries are discharged in saline water, and organic solvents, roll cores and casing materials are disassembled; 2) the roll cores are subjected to crushing, calcination and other steps, and active materials, copper foil and aluminum foil are separated through vibrating screening. Fluorine-containing waste gas is absorbed with lime water, the copper foil and the aluminum foil are separated with a magnetic separation method, the active materials are leached out with sulfuric acid, and a leachate and carbon residues are obtained through separation; 3) Cu<2+> in the leachate is reduced to elementary copper by adding iron powder, meanwhile, Fe<3+> is reduced to Fe<2+>, copper and excessive iron residues are filtered out, aluminum is removed through precipitation with an alkaline liquid, the filtrate is supplemented with a phosphorus source after filtration, the pH value is adjusted by adding the alkaline liquid, coarse lithium iron phosphate precipitates are produced, and finally, battery-grade lithium iron phosphate is obtained through sintering. Comprehensive utilization of the waste lithium iron phosphate batteries and regeneration of the active materials are realized with a simple, practical, economical and feasible method, no secondary pollution is produced, and the method is suitable for industrial production.

The invention relates to a cool additive for mint type cigarettes, preparation thereof and application thereof, which belong to the technical field of cigarette preparation. The cool additive is obtained by dissolving and refluxing menthol and soluble calcium salt together, then adding alkali solution into the mixture, settling and standing the solution, filtering and washing the sediment and drying the sediment in vacuum. The cool additive serving as a filter is added in the preparation of cigarette paper and paper filter materials for the cigarettes, or coated to the cigarette paper, filter stick forming paper or paper filter materials for the cigarettes, or added to shreds of cigarette filter sticks. The method adopted by the invention is simple and has low cost; and the prepared cool additive is applied to the cigarette accessory so as to avoid the pollution to the cigarette production line. The cool additive prepared by the method is applied to the cigarette paper filter material, the produced cigarettes have no impurity gas and peculiar smell, and the smoking taste of the paper filter tip cigarettes can be obviously improved.

The invention discloses a Na2Fe2(SO4)3@alumina composite material having a core-shell structure and a preparation method and an application thereof. The material is a composite material having the core-shell structure and prepared by coating the surface of Na2Fe2(SO4)3 particles with alumina. The Na2Fe2(SO4)3 is pyrolytically coated with an organic aluminum salt, the problems that Na2Fe2(SO4)3 is dissolved in water and is difficultly coated by alumina via a traditional hydrolysis method are overcome, the synthesis method is simple, conditions are mild, and the yield is high; the prepared composite material can effectively suppress a 'surface poisoning effect' of the material, and has the advantages of high specific capacity, high work voltage, good cyclic stability and excellent rate performance when applied as a sodium ion battery positive electrode material.

The invention discloses application of an astragalus extract in stem strings or reproduced tobaccos. The application is characterized in that the astragalus extract is added into the stem strings or the reproduced tobaccos, so that the wood gas and the irritation of the stem strings or the reproduced tobaccos can be obviously reduced, the doping rate of the stem strings or the reproduced tobaccos in a medium-grade and high-grade cigarette formula is increased, and the smoke quality of cigarettes is not influenced; and the astragalus extract is prepared from astragalus by the process of solvent soaking, extraction and concentration. The application has the outstanding characteristics that new astragalus application is developed by the conventional solvent and the common extraction method; and a new natural stem flavoring agent is provided.

The invention relates to a high-energy-storage-density strontium-sodium-niobate-base glass ceramic energy storage material, and preparation and application thereof. The strontium-sodium-niobate-base glass ceramic energy storage material comprises SrO, Na2O, Nb2O5 and SiO2 in a mole ratio of 42x:42(1-x):28:30. The preparation method comprises the following steps: weighing the raw materials, mixing by ball milling, drying, and carrying out high-temperature melting to obtain a high-temperature melt; and casting the high-temperature melt into a preheated metal mold, carrying out stress-relief annealing to obtain transparent glass, cutting the transparent glass into glass sheets with the thickness of 0.9-1.2mm, and carrying out controlled crystallization to obtain the product. The product is applicable to an energy storage capacitor material. Compared with the prior art, the preparation method provided by the invention is simple, does not need complicated after-treatment steps, and is economical and practical. The prepared glass ceramic energy storage material has higher breakdown field strength resistance (2402kV / cm), and the energy storage density of the material is obviously enhanced to 16.86J / cm<3>. The strontium-sodium-niobate-base glass ceramic energy storage material is applicable to an energy storage capacitor material.

The present invention relates to a luminescent Material which can send out orange-red light through the inspiration of ultraviolet light or sunlight and has long afterglow, and a method for preparing the material. The luminescent material of the invention is an orange-red long afterglow luminescent material with a general formula of Ca(2-x-y)SnO4:Smx,My, wherein M is zinc or cadmium or the combination of zinc and cadmium; x and y are the molar ratio coefficients of corresponding doped ions relatively to the Ca2SnO4, wherein, x=0.001-0.150, and y=0-0.150. The preparing method of the luminescent material according to the invention adopts a high-temperature solid phase method.

The invention discloses a method for breeding Australian freshwater lobsters. The method is characterized by comprising the following steps of building a lobster pond, and selecting a place which is great in air circulation and free of pollution sources, faces the sun and has convenient irrigation and drainage conditions; cleaning and disinfecting the pond, wherein quick lime and water are used for cleaning the lobster pond, and the consumption of the mixture is 100 kg per mu; conducting stocking of young lobsters, wherein the specification of the young lobsters is 2-4 cm, and the density of stocking is 6,000-8,000 per mu; putting baits, wherein the baits are put once in the morning and evening every day, the feeding amount accounts for 5-10% of the weight of the lobsters, and the feedingamount in the evening accounts for 70-80% of the total feeding amount of the whole day; managing the lobster pond, wherein checking and patrols need to be carried out frequently at the ordinary time,and aquatic plants on the bottom of the pond are supplemented in time; conducting disease prevention and control, wherein prevention and control are carried out mainly, and disinfection of the body surfaces of lobster bodies is the most important work during disease prevention and control in order to prevent pathogens from being brought into the pond; checking whether or not purse nets around thepond are firm enough at the regular time; conducting harvesting, wherein stocking and harvesting are conducted in the same year. Lobsters bred according to the method are large in size, fat, rich in nutrient and high in growth speed, yield and survival rate.

The invention relates to a method for purifying eutrophic water in ecological agriculture. According to the method, a plurality of net cages are put in an eutrophic water body, each net cage is provided with three net rafts in the middle, and 0.5m wide areas for oxygenating and growing small insects like mosquitoes are arranged around the net rafts; floating plants resisting eutrophic water are planted on the water surface of the net rafts, submerged plants resisting eutrophic water are planted at the bottoms of the net cages, emergent aquatic plants resisting eutrophic water are planted in the middle of the net rafts, animals resisting eutrophic water are raised in the water, under the irradiation of the sun, the aquatic plants absorb organic matters like nitrogen and phosphorus in the eutrophic water to grow, and give off oxygen, and the aquatic animals are fed on the aquatic plants; the floating plants, the submerged plants and the emergent aquatic plants are planted according to a certain proportion, the aquatic animals are raised, and people can catch the aquatic animals in the net cages at regular intervals to cook; an ecological balance of system of eutrophic water and sunshine-aquatic plant-aquatic animal-food of people is formed, one or two aquatic plants or animals are prevented from overgrowing, and the eutrophic water is purified.

The invention discloses synthesis method of a five-membered flower cyclic supramolecule based on terpyridyl metal coordination. The supermolecule is a giant five-membered flower ring-shaped supermolecule formed by self-driving a ligand containing a plurality of terpyridyl and metal ruthenium and transition metal ions in a solvent, wherein the ligand and the transition metal can accurately react togenerate a single pentamer product without generation of other byproducts; then structural characterization and molecular weight determination are carried out on the ligand and a final assembly product through nuclear magnetism, mass spectrometry, scanning electron microscopy and other tests. The supermolecule has large molecular weight and good solubility, the molecular structure has symmetry and aesthetic properties, and gelation can be realized.

The invention discloses a method for synthesizing doped lithium iron phosphate, comprising the steps as follows: 1) ferrite, lithium salt, phosphonium salt and metal oxide are taken by proportion and ball-grinded in air for 1-10 hours by taking ethanol as medium; the gained mixture is dried, arranged in a pipe-typed furnace and reacts for 4-8 hours under the protection of protective gas and at the temperature of 300-400 DEG C; 2) ball grinding is carried out on the mixture of the gained lithium iron phosphate former body and carbon source for 1-10 hours by taking the ethanol as medium; 3) after the gained outcome is wrapped by tinfoil and arranged in a crucible which is filled with graphite, the crucible is arranged in a microwave oven and heated for 5-30 minutes under the microwave power of 100-800W; the crucible is cooled for 1-5 minutes when the heating is stopped; 4) the crucible is heated for 1-10 minutes by the micro-wave power of 100-800W, the crucible is cooled for 1-5 minutes, when the heating is stopped; 5) step 4) is repeatedly done for 1-10 times and the finished product is gained after natural cooling. The method has the advantages of simple process, short reaction time, high purity of the product and high vibration density, and the like.

The invention discloses a method for the distant hybridization between subfamilies of red crucian carps and xenocypri davidi bleekers, comprising the following steps: firstly, selecting red crucian carps and xenocypri davidi bleekers with maturated gonads and good body features to be respectively used as female parent fishes and male parent fishes for hybridization, and carrying out artificial induced spawning on the female and male parent fishes in a breeding season; secondly, selecting the male and the female parent fishes with good effect of induced spawning for carrying out artificial dry-method insemination, and carrying out automatic hatching in running water after the insemination is finished; thirdly, breeding hatched fries, and detecting and screening the bred fries to obtain redcrucian carp and xenocypri davidi bleeker hybridized triploid fishes, red crucian carp and xenocypri davidi bleeker hybridized tetraploid fishes and natural gynogenesis red crucian carps. In the invention, the characteristics of the bred hybridized generation are improved, and the insemination rate and the hatching rate of distant hybridization are remarkably improved; in addition, the method is anew way for generating the tetraploid fishes and the natural gynogenesis red crucian carps, and has important biological significance in the aspects of the biological evolution and the genetic breeding of fishes.

The invention discloses a method for preparing protein feed and a protein feed additive by culturing fly maggots with a defined medium. The fly maggot protein feed is prepared through the steps that the defined medium is inoculated with cyclorrhapha flyblows, culturing is performed for 2-6 days, and then drying is performed; the defined medium is prepared from wheat bran, corn flour, soybean meal and plant fiber powder. According to the method, the fly maggots cultured by the defined medium are adopted as raw materials for preparing the protein feed and the protein feed additive, and therefore continuous breeding all year round can be achieved; the raw materials of the medium are all selected from agricultural leftovers and are high in yield and low in cost, and therefore long-term breeding can be achieved; the defined medium used in the formula is comprehensive and balanced in nutrition and meets the all-aspect fly maggot growth requirements that carbohydrate and an appropriate amount of grease are supplied to fly maggot growth, and maggot protein obtained through culture is beneficial for digestion and absorption of livestock and aquatic animals.

The invention relates to a special fertilizer for strawberry by using worm excrement as a matrix and a preparation method and application thereof. The special fertilizer for strawberry is prepared from the following raw materials in parts by weight: 400 to 500 parts of black soldier fly worm excrement, 400 to 500 parts of yellow mealworm worm excrement, 5 to 6 parts of urea, 10 to 15 parts of diammonium phosphate, 6 to 8 parts of potassium sulfate, and 50 to 60 parts of vermiculite. The special fertilizer for strawberry has the advantages that the special fertilizer is used as a base fertilizer for the strawberry growth, the soil can be effectively improved, the survival rate of the strawberry is improved, the salt diseases due to excessive fertilizer applying can be prevented, the fertilizer re-applying times and amount are reduced in the later stage, and the output and quality of the strawberry are improved.

The invention discloses an Na2Fe2P2O7 material with a flower-like structure and a preparation method and application of the Na2Fe2P2O7 material with the flower-like structure. The material is formed by assembling Na2Fe2P2O7 with the flower-like structure, and the preparation method of the Na2Fe2P2O7 material comprises the following steps that a precursor is synthesized by using a hydrothermal method, and then calcined to obtain the Na2Fe2P2O7 material with the flower-like structure; the Na2Fe2P2O7 material with the flower-like structure can expose high-activity crystal faces, and has higher electrochemical activity, thereby having high specific capacity and working voltage while being used as a sodium ion anode material, and still having excellent rate capability and good cycle stability without using a carbon substrate.

The invention discloses a preparation and treatment method for low-sulfur manganese cobalt nickel hydroxide. According to the method, the crystallization degree of a product is increased by controlling parameters including a pH value and the like in a synthetic process, impurities in a crystal structure are reduced, and the effect of reducing the S content of the product is achieved in a mode of combining special alkali liquor elution with water washing. The S content of a prepared material is low and reaches 0.1%, so that a positive electrode material prepared from a precursor has excellent electrochemical performance.

The invention discloses a method for preparing copper calcium titanate ceramic, comprising the following steps of: providing aqueous solution of calcium salt and copper salt, and obtaining clear solution by quantitative reaction of tetra-n-butyl titanate and oxalic acid; regulating the pH value of reaction of calcium-copper solution and coprecipitation solution by ammonium acetate so as to be convenient to coprecipitate; and precipitating, separating and drying to obtain superfine proparea powder with less impurity phase and higher purity, and carrying out calcination, granulation, tabletting and sintering at the temperature of 1100 DEG C in air on prodromic powder to obtain the copper calcium titanate ceramic. According to the novel buffer solution and an improved coprecipitation method, the technology is simple, the repeatability of a result is good, and the industrialization is easy. The prepared ceramic has the characteristics that the dielectric constant is high, and the loss is low.

The invention relates to a preparation method of bismuth-containing eulytite bismuth silicate crystals, which comprises the following steps: mixing bismuth trioxide powder and quartz glass powder into a batch mixture; putting the batch mixture into a high purity alumina crucible; and firing according to the following technical system: ascending from room temperature to 550 DEG C at a heating rate of 5 DEG C / minute and insulating for 30 minutes; ascending the temperature from 550 DEG C to 880-920 DEG C at the heating rate of 10-12 DEG C / minute and insulating for 6-24 hours; then rapidly taking the crucible out of a muffle furnace and putting the crucible in running water, so that the sample is cooled to room temperature at a cooling rate of 400 DEG C / minute; after cooling, taking out the water-quenched sample; and finally, drying and ball milling the sample to obtain the bismuth-containing eulytite bismuth silicate crystal powder. In the invention, high purity amorphous quartz glass is used as a raw material, thereby avoiding reacting with bismuth trioxide at low temperature. The prepared bismuth silicate crystals feature high purity, very few impurities, low cost and rich sources of raw materials, and simple preparation processes.

The invention belongs to the field of battery anode material recovery and particularly discloses a recovery method for an anode material of a nickel cobalt manganese waste battery. The nickel cobalt manganese waste battery is fully discharged and disassembled to obtain an anode piece; the anode piece is soaked in organic solvent, is dried and is then subjected to heat treatment in an oxygen-containing atmosphere at the temperature of 400-500 DEG C; and the anode piece obtained after heat treatment is subjected to wet ball grinding in a stripping agent, and then separation is conducted to obtain the anode material. The recovery method has the advantages that steps are simple, energy consumption is small, conditions are mild, other steps except for heat treatment can be all conducted under the normal temperature; solvent used in the whole process can be recycled, energy is saved, pollution is avoided, and cost is lowered; impurities in the recovered anode material are few, the structureof the anode material is not damaged in the recovery process, loss of the lithium element is small, aluminum is recovered in an elementary substance form, and subsequent treatment is not needed; and the recovery method is simple and efficient. The nickel cobalt manganese waste power battery is recovered through the recovery method, environment stress can be relieved, and cyclic utilization of resources can also be achieved.

The invention discloses a Na<2-2x>Fe<1+x>P<2>O<7> / carbon composite material and a preparation method and an application thereof. The material is a composite material formed by coating the surfaces of Na<2-2x>Fe<1+x>P<2>O<7> particles with a carbon net layer. The synthesis method is simple, mild in condition and high in yield; and the prepared composite material has high specific capacity, high working voltage, good cycling stability and excellent rate capability when applied as a sodium-ion positive material.

The invention discloses cerium-europium-excited single-phase yttrium aluminum garnet phosphor powder and a preparation method thereof, which belong to the field of fluorescent energy saving technology. The grain diameter of the phosphor powder is less than or equal to 400 meshes; and the general formula of the cerium-europium-doped yttrium aluminum garnet is (Y(1-x-y)CexEuy)3Al5O12, wherein x is greater than 0.05 and less than 0.2 and y is greater than 0.05 and less than 0.15. The phosphor powder prepared by the invention can effectively absorb blue light of which the wavelength is 460nm and emit yellow and red composite light, can generate a light conversion white LED with a conventional GaN blue LED chip, and overcomes the defect that the conventional white LED lacks of a red light component.

The invention discloses a culturing method of squaliobarbus curriculus regarded as forage fish for out-of-season culturing of mandarin fish. The culturing method belongs to the technical field of aquaculture, and comprises the following steps of (1) pond cleaning and disinfecting; (2) culturing conditions; (3) summer flower culturing; (4) fingerling rearing. The method provided by the invention takes the lead in breaking through the key technology that live forage fish i.e. dace suitable for the later period of culturing of the mandarin fish cannot survive through the winter in Northern China, creatively provides the idea of regarding the high-yield cultured fishes i.e. squaliobarbus curriculus with high low-temperature resistant capacity as the forage fish for the later period of culturing of the mandarin fish, effectively ensures the supply of the forage fish for the mandarin fish to live through the winter and in later period of culturing from the following spring to August by an efficient culturing mode of putting fries in different months, thoroughly solves the problem of the restriction of insufficient and unwell supply of the forage fish suitable for the later period of culturing of the mandarin fish in winter in Northern China, and provides important forage fish guarantee for the out-of-season culturing of the mandarin fish.

The invention belongs to the technical field of hybridization breeding methods of fishes, and relates to a hybridization breeding method of Elopichthys bambusa and Megalobrama amblycephala. Hybridization breeding is conducted on eggs of female Megalobrama amblycephala and sperms of male Elopichthys bambusa, and the obtained hybridized F1 has fast growth, delicate flesh, omnivorous feeding habits,strong resistance and strong disease resistance. The hybridization breeding method has strong operability and good adaptability; and in the hybridization process, the fertilization rate can reach 55%,the hatching rate can reach 40%, and the survival rate of fry can reach 65%; most of characteristics of the hybridized fishes are partial to those of Megalobrama amblycephala, and compared with Megalobrama amblycephala, the hybridized fishes have certain growth advantages and feeding advantages, and are suitable for large-scale breeding.

The invention relates to a preparation method of a sillenite bismuth silicate microcrystal, which comprises the following steps: firstly, mixing and adding bismuth trioxide powder and quartz sand into a ball milling tank, adding ethanol for uniformly mixing, and then drying to obtain a mixture; then, adding the mixture into a crucible for melting; after melting, taking the crucible out of a muffle furnace, and putting the crucible outside the furnace for quickly cooling at room temperature; and when the surface of the molten glass in the crucible is supercooled and crystallized, putting the crucible into the muffle furnace again for heating, then cooling the crucible at room temperature, and repeatedly heating and cooling the crucible to obtain the bismuth silicate microcrystal. By adding raw materials at high temperature and using a process for quickly melting at high temperature, the invention avoids the influence of uneven components caused by volatilization of the bismuth trioxide at high temperature. The prepared bismuth silicate (Bi12SiO20) microcrystal has small size, high crystal purity, extremely few impurity phases, low cost of raw materials, wide sources of raw materials, lower synthesis temperature and simple preparation process, and is favorable for industrialized production.

A preparation method of a Na3+2xZr2-xMxSi2PO12 solid electrolyte powder material is disclosed. The invention belongs to the technical field of solid electrolyte materials and especially relates to a preparation method of a natrium super ionic conductor powder material. The invention aims to solve the problems of high reaction temperature and low conductivity by existing high-temperature solid state methods and the problem that powders obtained by existing sol-gel technologies are severely agglomerated. The method provided by the invention comprises the following steps: Step 1, dissolving NaNO3, ZrO(NO3)2.2H2O, M(NO3)2.nH2O and (NH4)2HPO4 by the use of deionized water; Step 2, adding deionized water and a dispersant into anhydrous ethanol, adding TEOS, and adjusting pH; Step 3, successively dropwise adding four solutions obtained in the Step 1 into sol obtained in the Step 2; Step 4, standing and ageing under sealed and light-proof conditions, and drying to obtain a precursor; and Step 5, calcining and grinding to obtain the Na3+2xZr2-xMxSi2PO12 powder.

The invention relates to a preparation method of Bi2O3 polycrystal, which comprises the following steps of: uniformly mixing Bi2O3 and SiO2 to form a mixture; adding the mixture to a corundum crucible at high temperature for fusing, then pouring the uniformly fused bismuth oxide high-temperature glass melt into a heat-resistant steel mould, and naturally cooling to a room temperature after annealing to obtain a bismuth oxide glass melt; placing the prepared uniform bismuth oxide glass melt in a muffle furnace, increasing the temperature at the speed of 5 DEG C per minute and preserving the temperature for 3-8 hours, and pulverizing the sample into particles with the size less than 50 meshes when cooling the sample to room temperature; and then placing the pulverized particle samples in 15%-20% hydrofluoric acid solution, soaking 1-3 hours to remove a non-crystalline phase SiO2 in the samples, and filtering to obtain the Bi2O3 polycrystal. No nucleating agent is added during the Bi2O3 polycrystal preparation, so that the prepared Bi2O3 polycrystal has the advantages of small and uniform size of crystal particles, high crystallinity, high crystal purity, less impurities, low requirement on raw materials, low cost, abundant source, lower synthetic temperature and simple preparation process, and is beneficial to industrial production.

The present invention discloses a method for producing a honeycomb core with a textile waste material, which is characterized by including: 1) treatment of the textile waste material and production of fiber felt, including cutting up the textile waste material, tearing, fully mixing a thermoplasticity textile waste material with an ordinary textile waste material in proportion to produce re-processed fibers, performing net formation and hot melting reinforcement of the fibers to obtain a fiber felt; 2) production of a fiberboard and a honeycomb core blank, including preheating and molding the fiber felt obtained from the 1) step to obtain the fiberboard, coating a binder according to a certain rule on the fiberboard to form binder strips, bonding a plurality of layers of fiberboards to produce the honeycomb core blank; and 3) processing the honeycomb core, including cutting the honeycomb core blank obtained from the 2) step into the honeycomb core blank strips with an equal width, preheating the honeycomb core blank strips, and stretching at the cross-section by segments to make the honeycomb core blank strips expand, so as to obtain the honeycomb core with the textile waste material. The method can make use of rigid textile waste materials with large quality discrepancy, the different fibers in the textile waste material do not need to be distinguished, and the added value of the textile waste material is increased.

The invention relates to a material containing a sheet-shaped wolfram carbide grain. The weight content of sheet-shaped wolfram carbide is 70-97% and the weight ratio of compound carbon to a wolfram element in the material is in a range of 6: 94 to 6: 90; the weight content of a bonding phase material is 3-30%; and the balance is inevitable impurities. When a copper target Ka ray is used for carrying out X ray diffraction analysis and peak strengths of a crystal surface (001) and a crystal surface (101) of the sheet-shaped wolfram carbide respectively represent hWC (001) and hWC (101), the sheet-shaped wolfram carbide meets the requirement that the hWC (001) / hWC (101) is more than or equal to 0.65. The invention further relates to the material containing the sheet-shaped wolfram carbide grain and an application of the material containing the sheet-shaped wolfram carbide grain.

The invention discloses a terahertz waveband medium material, a preparation method and a method of preparing a dielectric medium therefrom. The chemical formula of the medium material is [(Mg<1 x>Al<2 / 3x>)<1 / 3>Nb<2 / 3>]O<2> + y wt% ABSMV, 0<=x<=0.3, and y=1 or 2. The medium material has the advantages of low sintering temperature, low dielectric loss, and moderate dielectric constant.