190results about How to "Meet industrial production" patented technology

The invention discloses a device for efficiently preparing metal spherical ultrafine powder. The device comprises a shell, a crucible and a powder collection area, wherein the crucible is arranged in the shell. The device is characterized in that a thermal couple is arranged inside the crucible; sensing heaters are arranged outside the crucible; the bottom of the crucible is provided with a nozzle with a small hole; a concentrator is arranged below the nozzle; the periphery of the concentrator is provided with sensing coils; the powder collection area comprises a collection disk arranged at the bottom of the shell and a rotary circular disk arranged above the collection disk. The invention further discloses a method for preparing metal spherical ultrafine powder. A technology for preparing fine particles by cutting capillary jet with electromagnetic force and a centrifugal atomizing method are combined, so that metal powder which has the advantages of narrow particle diameter distribution interval, high roundness, high fluidity, superior spreading property, uniform and controllable size and nonexistence of satellite droplets and meets the 3D printing use requirement can be prepared. The method is suitable for industrial production.

The invention relates to an iron and vanadium synergistically doped lithium-rich manganese-based positive electrode material and a preparation method thereof. A chemical formula is xLi<2>MnO<3>.(1-x)LiMn<1/3>Ni<1/3>Co<1/3>O<2>-Fe<y>V<z>, wherein x is not less than 0.1 and not greater than 0.9, y is not less than 0 and not greater than 0.1, z is not less than 0 and not greater than 0.1, and y+z is not less than 0.005 and not greater than 0.1. In the preparation method of the iron and vanadium synergistically doped lithium-rich manganese-based positive electrode material, a carbonate precursor containing three elements of nickel, cobalt and manganese is prepared through coprecipitation reaction, a doping element is added while the carbonate precursor containing three elements of nickel, cobalt and manganese is mixed with a lithium compound, and the doping element is at least one of Fe and V. The preparation method is simple in technology and convenient to operate, reduces equipment requirement and manufacturing cost, and satisfies industrial production; by co-doping of iron and vanadium, two metallic elements play a role in synergistic effect, specific discharge capacity and initial coulomb efficiency of the lithium-rich manganese-based positive electrode material are improved, and the lithium-rich manganese-based positive electrode material has better application foreground in the fields of power supply and battery energy storage.

The invention discloses a method for achieving efficient and comprehensive resource utilization of arsenic-alkali residues. The method comprises the steps that after oxidation and water logging are conducted on the arsenic-alkali residues, solid-liquid separation is conducted, so that leachate and antimony-enriched residues are obtained; an ammonium-source solution is made to react with metallic oxide, so that a metallic ammonium complex ion solution is obtained; the metallic ammonium complex ion solution and a crystal growth accelerant are added to the leachate for a reaction, a mixed solution obtained after the reaction is sequentially subjected to aging, crystallization, precipitation and solid-liquid separation, and an obtained solid phase is an ammonium arsenate metallic salt product;and firstly, treatment of heating for ammonium removal is conducted on a liquid phase, then, carbon dioxide is introduced for a reaction, so that sodium bicarbonate crystals are separated out, and thermal decomposition is conducted on the sodium bicarbonate crystals, so that a sodium carbonate product is obtained. By means of the method, antimony, alkali and arsenic can be rapidly and efficientlyseparated out of the arsenic-alkali residues; the effect that the arsenic is efficiently separated from the alkali is achieved; and in addition, the method is low in cost, simple in process and convenient to operate, and the requirement of industrialized production is met.

The invention discloses magnesium aluminum silicon system glass and a preparation method of high-crystallinity-degree transparent glass-ceramic. The glass-ceramic is prepared from component raw materials including MgO, Al2O3, SiO2, a sintering assistant, a clarifier and a nucleating agent through a fused cooling-controllable devitrification method, and a fusing process for high-temperature convectional mixing homogenization through temperature perturbation induction is adopted to fuse mixed batch. The raw materials are easy to obtain, the prepared glass-ceramic has the advantages of high crystallinity, high light transmittance, higher strength, excellent chemical stability and the like. It is specifically embodied in that with the transmittance of 2mm glass-ceramic with the crystallinity of 75-95 vol.% in a visible region is 60-90%, the volume density is 2.450-2.550 g/cm<3>, the microhardness 7.0-9.5 GPa, the thermal expansion coefficient TEC (25-600 DEG C) is 14.00-26.00 * 10-/7 DEG C, and the glass-ceramic is used as a solid optical functional material.

The invention discloses a preparation method and an application of polar group-modified pendent double bond post-crosslinked polydivinylbenzene resin. The preparation method comprises: firstly performing a polymerization reaction of divinylbenzene monomers, polar monomers, and a pore forming agent to obtain a polar group-modified pendent double bond post-crosslinked polydivinylbenzene resin precursor; performing further crosslinking through a Friedel-Crafts reaction to obtain the polar group-modified pendent double bond post-crosslinked polydivinylbenzene resin. The preparation method is simple, and low in cost, and the prepared post-crosslinked resin has a high specific surface area and a special pore structure; the post-crosslinked resin can be used for adsorbing and removing organic matter in waste water, has the effect of selective adsorption, and especially has obvious selective adsorption effect on Congo red and/or rhodamine B.

The invention discloses a molybdenum doped vanadium disulfide micron flower material and a preparation method and application thereof. The molybdenum doped vanadium disulfide micro flower material iscomposed of molybdenum doped vanadium disulfide nanosheets by self-assembly. The preparation method comprises the steps of adding a vanadium source, a molybdenum source and ammonia water to water, stirring until being transparent, adding a sulfur source, and stirring to obtain a mixture; making the mixture be further subjected to an one-step hydrothermal reaction, and washing and drying a reactionproduct to obtain the molybdenum doped vanadium disulfide micron flower material; the preparation method has the advantages of simple process, low cost, high yield, mild condition, simple required equipment and environmentally friendly performance, and is capable of mass production. The application of the molybdenum doped vanadium disulfide micron flower material in an electrocatalytic hydrogen evolution reaction shows the excellent catalytic activity, the overpotential is as low as 0.243V (relative to a standard hydrogen electrode), and the Tafel slope is as low as 52.6mV/ Dec.

The invention provides a novel method for producing propylene and ethylene through catalytic cracking of olefins, which comprises the steps of: taking C4-C12 olefins as raw materials; and performing acatalytic cracking reaction of the olefins on the raw materials through a catalyst bed to generate the propylene and the ethylene under the conditions that the reaction temperature is between 450 and650 DEG C, the reaction pressure is between 0 and 0.3MPa, the weight space velocity of the olefins is between 1 and 14 h<-1>, and the weight ratio of water to the olefins is 0.1-10, wherein a catalyst comprises a ZSM-5 molecular sieve, an adhesive and a phosphorus element supported on the catalyst, the silicon-aluminum molar ratio SiO2/Al2O3 of the ZSM-5 molecular sieve is 10-300, and the grain diameter of crystal grains of the ZSM-5 molecular sieve is between 10 and 800nm. The method has longer reaction operation time while maintaining the high yield of the propylene and the ethylene, and can be used for industrialized production.

The invention provides a fiber denaturalized padding device of a denaturalized treatment device, which solves the problems that former similar equipment can not treat the denaturalized treatment uniformly and meet industrial production. The invention comprises a steeping tank for holding denaturant, auxiliary rollers formed by two rollers that are contacted to two external walls and arranged on a device frame and above a cut of the steeping tank. The invention can accomplish the fabric steep in the denaturant as well as the rolling process of steeped fabric, etc.

The invention relates to a strontium titanate-based lead-free high-energy storage density and high-energy storage efficiency ceramic material and a preparation method thereof. The preparation method comprises the following steps: firstly batching according to a chemical formula (1-x)SrTiO3-x(0.65BaTiO3-0.35Bi0.5Na0.5TiO3), wherein x represents a molar fraction and is greater than or equal to 0.1 but less than or equal to 0.6; ball-milling and drying to obtain a raw material powder body; adding the obtained raw material powder body into a bonding agent for pelleting, decaying for 24-48 hours, pressing into a sheet, performing glue removal treatment and sintering at a temperature of 1250-1350 DEG C to obtain the strontium titanate-based lead-free high-energy storage density and high-energy storage efficiency ceramic material. The ceramic material provided by the invention is simple and stable in preparation process, suitable for industrial production and excellent in energy storage characteristics, the energy storage density calculated based on a ferroelectric hysteresis loop is 0.961-1.403 J/cm<3>, and the energy storage efficiency is 84.77-91.63 percent.

The invention discloses a fast breeding method for dendrobium candidum protocorm tissue culture. The method comprises the following steps that 1, explants are cleaned and sterilized; then, the explants are inoculated into an induction medium to perform induction culture; 2, the protocorm inducted in the first step is inoculated into a liquid proliferation culture medium to perform suspension shaking culture; 3, the protocorm obtained in the second step is transferred into a differentiating culture medium to be cultured for obtaining differentiated seedlings; 4, the seedlings with the height being 1 to 2cm in the third step are transferred into a rooting culture medium for rooting. The method has the advantages that the proliferation times can be improved; the industrial fast breeding can be realized. The dendrobium candidum protocorm cultured by the method has high differentiation rate; the dry weight and fresh weight content is improved; the transplanting survival rate is correspondingly improved.

The invention discloses a nickel coated carbon fluoride positive electrode material and a preparation method of the nickel coated carbon fluoride positive electrode material. The positive electrode material is prepared by coating the surface of carbon fluoride particles with a nickel-plating layer. The preparation method comprises the steps that the carbon fluoride particles are sequentially sensitized, activated and reduced under a function of dispersing agents and the nickel-plating layer is plated; the carbon fluoride particles coated with the nickel-plating layer are subjected to thermal treatment to obtain the nickel coated carbon fluoride positive electrode material. The preparation method is easy to operate, mild in process conditions and low in cost; the prepared nickel coated carbon fluoride positive electrode material is uniform in coating of nickel-plating layer, stable in structure, and can be used for preparing a lithium carbon fluoride battery with high conductivity, high specific capacity and high power density.

The invention relates to a production process of high-strength bent pipe steel, which is a production process of high-strength X80 steel plate used for bent pipes. Composition: C: 0.015-0.080%, Mn: 1.50-1.80%, Si: ≤0.30% , S: ≤0.0030%, P: ≤0.015%, Nb: 0.04~0.15%, Ti: 0.005~0.030%, V: ≤0.120%, Alt: ≤0.060%, N: ≤0.010%, Mo: 0.10~0.60 %, Cu: 0.10~0.50%, Ni: 0.10~0.50%, Cr: 0.10~0.30%, Ca: ≤0.01%, the rest is iron; in the slab reheating process, the slab heating temperature: 1100~1200℃; In the controlled rolling process, the termination temperature of controlled rolling in the recrystallization zone: 1000-1080°C, the start temperature of controlled rolling in the non-recrystallization zone: 900-980°C, the termination rolling temperature: 760-880°C; In the cooling process, the termination cooling temperature: 300-550°C, and the cooling rate: 3-40°C/s. The product of the invention has good comprehensive properties, especially excellent performance in low-temperature impact toughness, and can still maintain a Charpy impact energy of about 300J at about -30°C.

Belonging to the field of catalytic chemistry, the invention relates to a preparation method of a supported heteropolyacid catalyst. The method includes the steps of: dipping a carrier material in a heteropolyacid aqueous solution and performing stirring to obtain a pulp; placing the pulp in a N2 environment, raising the temperature and increasing the pressure to make N2 reach a supercritical condition and sustaining the state for 2-6h to obtain a catalyst crude product; and separating and drying the catalyst crude product to obtain the supported heteropolyacid catalyst. In addition, the invention also relates to the supported heteropolyacid catalyst prepared by the method and application thereof in conversion of glycerin to acraldehyde. The method has the advantages of simple operation, mild conditions, and good safety. The prepared supported heteropolyacid catalyst has good dispersibility, high catalytic activity, and is easy to recover. The reaction of conversion of glycerin to acraldehyde under the catalysis of the catalyst achieves excellent conversion rate, selectivity and yield, and effectively alleviates the loss of the catalyst active components.

Seasoned freshwater fish is prepared from components in parts by weight as follows: 70 parts of channel catfish, 80 parts of water, 1.5 parts of welsh onions, 1.5 parts of ginger, 1.25 parts of Erguotou, 2 parts of onions, 0.5 parts of coriander, 1 part of celery, 0.2 parts of dried chilies, 0.5 parts of garlic, 0.1 parts of dried Sichuan pepper, 0.2 parts of pepper, 0.1 parts of cinnamon, 0.2 parts of cloves, 0.1 parts of dahurian angelica roots, 0.2 parts of liquorice, 0.1 parts of perilla frutescens, 0.2 parts of peach blossoms, 0.1 parts of lilies, 0.2 parts of pepper leaves, 0.1 parts of platycodon roots, 0.1 parts of date pits, 0.2 parts of okra seeds, 0.2 parts of dried red bayberries, 0.1 parts of Chinese yams, 0.2 parts of dang shen, 0.1 parts of Angelica sinensis, 0.2 parts of Gynostemma pentaphyllum and 0.1 parts of senna leaves. The raw materials are low in cost, the process is simple, industrial production is facilitated, the added value of fish by-products is increased greatly, and the market prospect is broad.

The invention discloses a mobile overturn robot and a multistation overturn method thereof, and belongs to the field of robots. The mobile overturn robot comprises an overturn device, a transfer trolley, and a travelling rail. The overturn device is arranged on the transfer trolley. The transfer trolley transfers the overturn device to different processing stations to perform overturn operation along the travelling rail. The overturn device comprises a power mechanism, an orienteering mechanism, and a locking mechanism. The locking mechanism is used to fix a cylindrical member. The power mechanism comprises an oil cylinder and a pull rod. The pull rod is connected with the locking mechanism. The oil cylinder moves horizontally to drive the pull rod to pull the locking mechanism to overturn. The orienteering mechanism is used to control operation directions of the power mechanism. The mobile overturn robot can perform overturn operation on a workpiece on different stations, and satisfies fast-paced industrial production, and overturn is stable and production security is high.