170results about How to "Suitable for large-scale industrial production applications" patented technology

The invention discloses a pre-crosslinking swellable profile control agent, a preparation method and application, and belongs to the technical field of oilfield chemistry. The pre-crosslinking swellable profile control agent is prepared from, by mass, 20-40 parts of mixed monomers, 0.01-0.05 part of a cross-linking agent, 3-8 parts of a reinforcing agent and 0.01-0.04 part of an initiating agent. The mixed monomers are prepared from acrylamide, acrylic acid and 2-acrylamido-2-methyl propanesulfonic acid in the mass ratio of (1.5-2.2):(1.5-2.5):(7.5-8.5). The reinforcing agent is sodium bentonite. The profile control agent has the advantages that the water swelling rate is high, and thus the requirement for effective plugging of large water channeling pore passages can be met; 2, the water swelling speed is low, and thus the requirement for stratum deep injection can be met; 3, the profile control agent has high strength and flexibility after water swelling; 4, the profile control agent is good in temperature resistance and salt resistance, and capable of effectively plugging channeling passages in polymer flooding-to-water flooding oil deposits, improving water injection profiles, making subsequently-injected water turn in the deep, increasing the swept volume and improving the subsequent water flooding efficiency.

The invention discloses a dispersed copper composite material and a preparation method thereof, belonging to the technical field of dispersed copper processing. The dispersed copper composite material is composed of the following components in percentage by mass: 0.24-3.74% of Al2O3, 0.03-1.27% of Y2O3 and the balance of Cu and unavoidable impurities. The dispersed copper composite material is prepared from Cu2O powder and Cu-Al-Y alloy powder through the steps of mixing, pressing, sintering and internal oxidation, extruding and forging; the composite material has the high strength of 500Pa or above and the high conductivity of 80% IACS or above and overcomes the defect that the high strength and high conductivity of other composite materials cannot simultaneously exist; and meanwhile the composite material is favorable in softening resistance, high in high-temperature strength and good in plasticity, and the softening temperature is 800 DEG C or higher.

The invention belongs to the field of catalyst materials and forming methods thereof, and concretely relates to a honeycombed catalyst material and an extrusion forming method thereof. The invention discloses the honeycombed catalyst material and the forming method thereof, and discloses the optimal content, the optimal ingredients and the optimal matching ratio of the honeycombed catalyst material and the preparation forming method thereof at the same time. A result shows that the honeycombed catalyst material has high catalytic efficiency on harmful gases such as formaldehyde and methylbenzene.

The invention provides a design method of a water blocking device for semi-continuous casting of hard aluminum alloy, the water blocking device comprises a water baffle plate body and springs, a divided structure is adopted in the water baffle plate body, all the parts are connected by the springs, the whole water blocking device is suspended under a crystallizer by a hinge or is directly supported on a casting platform, the part of the water baffle plate body which is contacted with the surface of a cast ingot is provided with a polymer material, and the working surface of the water baffle plate body is perpendicular with the surface of the cast ingot or forms a certain angle with the surface of the cast ingot. When in application, the outer surface of the cast ingot is tightly clamped at the same time of not obstructing the casting process, the secondary cooling water of the semi-continuous casting is blocked and shunted at the position of the water baffle plate, the cast ingot only receives part of the water cooling between the crystallizer and the water baffle plate, the lower part of the water baffle plate is carried out the natural air cooling; the cast ingot is repeatedly heated by a high temperature melt of the core part of the cast ingot, thus realizing the self-tempering effect of the cast ingot, effectively reducing the casting internal stress, preventing the cracks of the cast ingot and being applicable to the application of large-scale industrial production.

The invention belongs to the technical field of cigarette spices, and particularly relates to a malt caramel-like aroma spice and an application of the malt caramel-like aroma spice to tobacco products. The spice is prepared from caramel malt serving as a raw material, and a preparing method of the spice includes the following steps of a, raw material pretreating; b, ethyl alcohol extracting; c, freezing dewaxing; d, membrane separating. A pyrazine compound, a furan compound, a furanone compound, a pyrone compound, a cyclopentenone compound and the like are rich in the malt caramel-like aroma spice, the joyful caramel-like aroma smell can be given to cigarettes, and the Chinese-style cigarette style characteristic is intensified. According to the spice, the caramel-like aroma ingredients in caramel malt are purposefully extracted, separated and enriched, and ingredients such as vegetable wax, protein and starch which are contained in malt extract and have the side effects on sense organs of tobacco products are effectively removed. The preparing technology is simple and easy to operate, the cost of the raw material is low, the production process is economic and environmentally friendly, and the malt caramel-like aroma spice is suitable for large-scale industrial production application. The application of the spice to cigarettes cannot change the original processing technology of cigarettes.

The invention provides a reactive polyurethane hot melt adhesive for PVC. The reactive polyurethane hot melt adhesive for PVC is prepared from the following raw materials in parts by weight: 100 partsof low hydroxyl value crystalline polyester polyol, 0-350 parts of polyether polyol, 30-60 parts of amorphous polyester polyol, 0-350 parts of liquid polyester polyol, 70-110 parts of isocyanate, 35-250 parts of tackifying resin, 0.5-5 parts of an adhesive force accelerant, 0.5-5 parts of an antioxidant and 0.01-0.15 part of a catalyst. The hydroxyl value of the low hydroxyl value crystalline polyester polyol is 10-16 KOH / mg and the hydroxyl value of the amorphous polyester polyol is 18-56 KOH / mg. Compared with the prior art, besides characteristics of a common reactive polyurethane hot meltadhesive for splicing a PVC substrate, the reactive polyurethane hot melt adhesive for PVC provided by the invention also has a relatively high initial viscous force, can position quickly, is free ofupwarps in the assembling process and has good climate applicability.

The invention provides a foam double-sided tape and a preparation method and application thereof. The foam double-sided tape comprises a base material and a pressure sensitive adhesive layer compounded at two sides of the base material. The base material is a stretchable foam layer with at least a stretchable film compounded at one side thereof. Elongation at break of the stretchable film is greater than 300%, and tensile strength is greater than 10 MPa; elongation at break of the stretchable foam layer is greater than 300%, and tensile strength is greater than 1 MPa. Elongation at break of the pressure sensitive adhesive layer is 150-3000%, tensile strength is 1MPa-30MPa, and 180-degree peel strength is greater than 5N / 25mm. By the adoption of the functional layer with specific performance parameters, good interaction is realized under a specific structure, and the foam double-sided tape has excellent adhesion, excellent resistance to curved surface and warp, good buffer performance and excellent shear resistance, has high adhesion and die cutting performance to various surfaces of glass, PC, stainless steel, ABS, etc., can be removed tracelessly from various surfaces by simply stretching the whole tape, and is applicable to bonding and assembling of components of electronic products.

The present invention discloses a redox asymmetrical method for preparing L-phosphinothricin by biological multi-enzyme coupling. D, L-phosphinothricin is used as a raw material, the L-phosphinothricin is obtained through catalysis of an enzyme catalysis system, the enzyme catalysis system comprises a D-amino acid oxidase mutant for catalyzing D-phosphinothricin in the D, L-phosphinothricin into 2-carbonyl-4-[hydroxy (methyl) phosphonyl] butyric acid and a transaminase for catalyzing and reducing the 2-carbonyl-4-[hydroxy (methyl) phosphonyl ] butyric acid into the L-phosphinothricin, the D-amino acid oxidase mutant is obtained by mutation of D-amino acid oxidase in wild rhodotorula taiwanensis, and mutation sites are selected from one of the following four types: (1) M213S; (2) M213S-N54V-F58E; (3) M213S-N54V-F58E-D207A; and (4) M213S-N54V-F58E-D207A-S60T. The D-amino acid oxidase mutant has better catalytic efficiency, a conversion rate is far higher than that of wild enzyme when theracemic D, L-phosphinothricin is used as a substrate, and yield of PPO is also greatly improved.

The present invention discloses a low-fat chicken fermented sausage and a preparation method thereof, and belongs to the technical field of deep processing of agricultural products. The low-fat chicken fermented sausage comprises the following components by mass: 100 parts of chicken breast, 12-14 parts of corn oil, 9-12 parts of inulin, 1.2-1.4 parts of soy protein isolate, 0.5-0.7 part of sucrose, 3.5-4 parts of salt, 0.01 part of butyl hydroxyanisole, 0.02 part of sodium nitrite, 0.04 part of sodium nitrate, 0.007 part of gallic acid, 0.03 part of pepper powder, 9.5-10.5 parts of water, 0.001-0.004 part of probiotics and 0.035-0.038 part of leaven. According to the low-fat fermented sausage, chicken is inoculated with lactic acid bacteria so as to prepare a fermented meat product, so that the color of the product is improved, the digestibility and net utilization rate of proteins are increased, the safety of the product are improved, the shelf life of the product is prolonged, and a unique flavor is provided to the product.

The invention discloses a high-capacity high-nickel positive electrode material and a preparation method thereof. The high-capacity high-nickel positive electrode material is formed by a matrix and acoating layer, the matrix is prepared from a high-nickel precursor, a lithium-containing compound and an M-containing modified additive, and the high-nickel precursor is selected from one or more of nickel-cobalt-manganese oxide, hydroxide and carbonate. The coating layer is composed of a coating agent, the coating agent is a metal compound and / or a non-metal compound, and M is selected from one or more of metal elements and / or non-metal elements. The preparation method comprises the following steps: mixing a high-nickel precursor, a lithium-containing compound and an M-containing modified additive; carrying out primary sintering and post-treatment to obtain a high-nickel positive electrode material matrix; mixing the high-nickel positive electrode material matrix with a coating agent; andcarrying out secondary sintering and post-treatment to obtain the high-nickel positive electrode material. The high-capacity high-nickel positive electrode material is prepared by a primary doping and secondary coating method, is stable in lattice structure, and has the advantages of high specific capacity and good cycle performance.

Belonging to the technical field of lithium ion batteries, the invention discloses a lithium ion battery composite diaphragm and a preparation method thereof. The composite diaphragm comprises a polyolefin diaphragm and a fluorine-containing macromolecular polymer coating covering at least one surface of the polyolefin diaphragm. Compared with existing polyolefin diaphragms, the composite diaphragm has significantly enhanced thermal stability and safety, and plays a flame retardant role. At the same time, according to the invention, a composite surfactant, a composite silicone defoaming agent, an emulsion suspension stabilizer and a polyether silicone oil leveling agent are added into a polyacrylate cladded fluorine-containing emulsion to perform modification, and the coating performance of the fluorine-containing macromolecular polymer emulsion is improved. The preparation method for the composite diaphragm provided by the invention is simple, and is suitable for large-scale industrial production and application.

The invention discloses a load-type nano zero-valence iron particle and a preparation method therefor. The iron particle takes modified sepiolite as a carrier, and the surface and interior of the modified sepiolite are respectively provided with nano zero-valence iron particles. The preparation method comprises four steps: the preparation of the modified sepiolite; the preparation of modified sepiolite solution containing iron ions; the preparation of nano zero-valence iron solution; and the preparation of the load-type nano zero-valence iron particle. The obtained load-type nano zero-valence iron particle is better in dispersity and reactivity. The preparation method is simple in technology, is convenient to operate, and is simple in needed equipment.

The present invention discloses a lithium ion battery composite separation membrane and a preparation method thereof, and belongs to the technical field of lithium ion batteries, wherein at least a surface of a polyolefin separation membrane is coated with a modified natural rubber polymer coating. According to the invention, the polyolefin separation membrane and the modified natural rubber are combined to form the composite separation membrane, such that mechanical properties of the natural rubber can be improved, and the original pore closing characteristic of the polyolefin separation membrane can be maintained and utilized so as to improve safety of the battery, enhance bonding force between the separation membrane and the positive electrode and bonding force between the separation membrane and the negative electrode, eliminate the interface effect, and improve cycle stability of the battery; and the inorganic nanoparticles are added to the modified natural rubber latex, such that the crystallinity of the polymer can be reduced to a certain extent, the mechanical strength of the separation membrane and the carrier concentration can be increased, the interface compatibility between the separation membrane and the lithium electrode can be effectively improved, and the interface is stable.

The invention discloses a lithium titanate negative electrode plate, which comprises a negative current collector and a negative material, wherein the negative material coats the surface of the negative current collector. The lithium titanate negative electrode plate is characterized in that the negative current collector is a carbon-coated aluminum foil; the negative material is prepared from the following components in mass percentage: 2%-7% of a conductive agent, 3%-8% of a binder and 87%-94% of lithium titanate; the sum of the mass percentages of the components is 100%; and the compaction density of the negative material is 2-2.3 g / cm<3>. According to the lithium titanate negative electrode plate disclosed by the invention, with the carbon-coated aluminum foil as the negative current collector, the problem of poor processability of a lithium titanate material is solved; the overall performance of a battery is significantly improved; the formula of the negative material is optimized and modified; the coating performance is good; and the overall performance of the battery is ensured. The invention further discloses a preparation method of the lithium titanate negative electrode plate. The preparation method is simple in process step, high in operability and applicable to large-scale industrial production and application.

The invention relates to a spray-coating device and a spray-coating method for restraining secondary electron yield of a solid dielectric material and belongs to the technical field of plasma. The spray-coating method comprises the following steps of: washing and drying a to-be-treated sample; building the spray-coating device for restraining the secondary electron yield of the solid dielectric material; carrying out an atmospheric plasma torch spray-coating experience; and carrying out a secondary electron yield test and material surface physical shape observation. According to the spray-coating device and the spray-coating method provided by the invention, by utilizing plasma torches generated by an atmospheric plasma spray gun, a reaction precursor reacts to generate a Ti-containing group and an N-containing group; a compact and uniform TiN film is deposited on the surface of a dielectric; specifically, a gas-carrying precursor has decomposition and polymerization reaction; polymerization, grafting and crosslinking effects are realized on the surface of the dielectric so that the deposited film forms a 'micro-trap' structure, the surface roughness is reduced, the secondary electron yield of the solid dielectric is restrained, and the surface insulation property of the dielectric is improved.

The invention discloses a method for treating arsenic-containing wastewater from tungsten smelting. The steps are as follows: Step 1) Under normal temperature, pretreat the arsenic-containing wastewater generated during the tungsten smelting process, and adjust the pH of the wastewater to 10.0-12.0 after the pretreatment; 2) Add an oxidizing agent to the wastewater in step 1), and then stir for 15 to 25 minutes; step 3) continue to add iron salt to the wastewater in step 2), first stir rapidly for 10 to 20 seconds, and then stir slowly for 15 to 25 minutes; step 4 ) Finally, the waste water obtained in step 3) is left to settle and filtered. The method of the present invention treats the arsenic-containing wastewater in tungsten smelting by the "oxidant + iron salt" method, and the concentration of arsenic in the treated wastewater reaches the national "Comprehensive Wastewater Discharge Standard" (GB8978-1996), and the method is simple in process, Strong operability, suitable for large-scale industrial production applications.

The invention relates to the technical field of automatic manufacturing devices and manufacturing methods, in particular to an automatic material distributing mechanism. The automatic material distributing mechanism comprises a supporting bracket, a feeding block fixedly arranged on the supporting bracket, a correcting mechanism and a material pressing mechanism, wherein at least two feed openings are formed in the top part of the feeding block; feeding tracks communicated with the feed openings are formed in the feeding block; a sliding groove is formed in the bottom part of the feeding block; a sliding block is arranged at the lower part of the feeding block, and is movably clamped on the sliding groove; at least four through holes are formed in the sliding block; the sliding block is driven by a first air cylinder; discharging tracks communicated with the through holes are formed in the lower part of the sliding block; a discharging block is arranged below the feeding tracks, and is driven by a second air cylinder. The invention further discloses a method for material distribution by adopting the automatic material distributing mechanism. Compared with the prior art, the automatic material distributing mechanism supplies fixed mounting parts for products required to be fixed by multiple holes, can convey multiple parts at a time, improves the production efficiency, and is high in automatic degree, simple in structure and convenient to operate.

The invention relates to the technical field of evaporating equipment, in particular to a steam generator. The steam generator comprises a hollow electromagnetic heating cylinder body and a heat preservation and insulation layer arranged on the outer wall of the electromagnetic heating cylinder body; an electromagnetic heating induction coil is wound on the heat preservation and insulation layer; the inner wall of the electromagnetic heating cylinder body is provided with steam heat pipes; a one-stage water storage container is arranged in the heating cylinder body; a water inlet is formed in the bottom part of the one-stage water storage container; a one-stage preheating water outlet is formed in the upper part of the one-stage water storage container; a two-stage water storage container is arranged between the heating cylinder body and the one-stage water storage container; the one-stage water storage container is sheathed in the two-stage water storage container; a second preheating water outlet is formed in the lower part of the two-stage water storage container; a water level probe is arranged in the two-stage water storage container. Compared with the prior art, the steam generator disclosed by the invention has the advantages that the heating rate is high, the efficiency is high, and energy is saved for 60-70 percent due to the fact that electromagnetic energy is used for heating; generated steam temperature, quantity of steam and water content can be conveniently regulated; the environment is protected; the cost is reduced; the steam generator is suitable for large-scale industrial production.

The invention discloses a WIFI hotspot connection control method and system and a mobile terminal. The method comprises the following steps: adding a field value indicating how long a connected WIFI hotspot has been used to the configuration information of the connected WIFI hotspot and increasing the field value by 1 every time the WIFI hotspot is connected to be used for another hour; when the mobile terminal enters a range where a plurality of WIFI hotspots can be automatically connected, reading the configuration information of all connectable hotspots; obtaining the service time of all the connectable hotspots and comparing the service time; and preferably connecting the mobile terminal to the WIFI hotspot long in service time. According to the WIFI hotspot connection control method, the field indicating how long the hotspot has been used is added to the configuration information of the WIFI hotspot, and the hotspot to which the mobile terminal is preferably connected is decided by use of the service time; as a result, the problems that a hotspot to which a user wants to connect cannot be connected automatically and automatic connection occurs when a user re-enters the hotspot range after an invalid hotspot is connected once can be avoided, and the use experience of the user can be enhanced.

The invention discloses a method for extracting microalgae oil through a compound enzyme. The method comprises the steps that the compound enzyme composed of helicase, cellulase and trypsin and surfactant are added to suspended algae slurry subjected to ultrasonic oscillation, microalgae cells are broken through enzymolysis to release oil, extraction is conducted through an extraction agent composed of chloroform methanol, and the oil extraction rate reaches 90% or above. According to the method for extracting the microalgae oil through the compound enzyme, the reaction condition is mild, energy consumption is low, the processing cost is low, and the method is suitable for large-scale industrial production of algae oil.

The invention relates to a method for preparing lactate by catalyzing sugar. The method comprises the following steps: contacting sugar and alcohol with a catalyst in a reactor, and reacting to obtaina lactate-containing product, wherein the molar ratio of the sugar to the alcohol is 1:(50-900), the reaction temperature is 150-250 DEG C, the reaction time is 10-50 hours, the catalyst contains a tin-titanium-silicon molecular sieve, and the weight ratio of the sugar to the tin-titanium-silicon molecular sieve based on dry basis weight is 1:(1-6). The method provided by the invention has high sugar conversion rate and high lactate yield.

The invention discloses a washing method for an insulin crystal or an insulin analogue crystal. The method adopts a hollow fiber membrane to process insulin crystal suspension or insulin analogue crystal suspension. The effective combination of crystal washing, liquid changing and crystal suspension condensation, washing effects can be strengthened, and produce solvent residues and residue on ignition are low; The method can realize continuously automatic operation; and the method is simple in process and easy in operation, technology stability and production efficiency can be enhanced, and therefore, the method is especially suitable for applications on large-scale industrial production.

The invention provides a water cooling device for aluminium alloy ingot area. The water cooling device mainly comprises a bracket, a main clamping plate, an auxiliary clamping plate, a connecting rod, a cylinder and a wiper plate, a plurality of positioning holes or guiding grooves are arranged in the height direction of the bracket, a support rod is inserted in the positioning hole or the guiding groove, and the support rod is sleeved with two main clamping plates, and the cylinder is arranged between the two main clamping plates, each main clamping plate is connected with the auxiliary clamping plate through the connecting rod, and inner walls of each clamping plate and auxiliary clamping plate are provided with a wiper plate respectively. The cylinder retracts to drive the main clamping plate to retract and the two auxiliary clamping plates retract under the drive of the connecting rod so that the wiper plates can realize automatic clamping or loosening ingots. The water cooling device is safe, convenient, can adjust the effective cooling length of regional cooling flexibly, is easy to realize automatic control, and better meets the casting requirement of hard aluminium alloy casting.

The invention relates to a method for extracting oil and protein in silybum marianum kernels by subcritical fluid. The method is characterized by comprising the following steps: (1) screening dried silybum marianum kernels, removing impurities, and peeling hulls by virtue of a peeling machine to obtain silybum marianum kernels; (2) rolling or extruding and grinding the silybum marianum kernels; (3) putting the ground silybum marianum kernels and an extraction solvent into a subcritical fluid extraction kettle for continuous extraction to obtain extracting liquid; (4) gasifying the extracting solvent by means of pressure reduction and temperature increase in an evaporation system to separate the extracting solvent from the extracting liquid so as to obtain silybum marianum kernel oil; (5) keeping the solid in the extraction kettle as the silybum marianum protein. Compared with supercritical extraction, the method has the advantages of low equipment investment and low production state stress, and is suitable for industrial large-scale production. Compared with a traditional process for preparing oil and protein, the method has the advantages of simple process flow, high yield, good quality of oil and protein, environmental friendliness and no pollution.

The invention relates to a table tennis bat rubber cleaning agent and a preparation method thereof, and belongs to the technical field of a cleaning agent. The table tennis bat rubber cleaning agent is prepared from Chinese honeylocust fruit extracts and the following ingredients in parts by weight: 0.5 to 3 parts of quaternary ammonium salt, 0.5 to 3 parts of surfactants, 0.05 to 0.2 part of preservatives, 0.01 to 0.2 part of antifoaming agents and 5 to 20 parts of water. The table tennis bat rubber cleaning agent has the advantages that the Chinese honeylocust fruit extracts, the quaternaryammonium salt, nonionic surfactants and zwitterionic surfactants are compounded; the cleaning and stain removal functions can be achieved in a cooperated way; in addition, the property is stable; thefoams are small; the moisturizing performance is good; meanwhile, the antibacterial and anti-static capability can be realized; the table tennis bat rubber is enabled to have good use performance.

A marine organism type enteral nutrition preparation used for burn patients is disclosed. The enteral nutrition preparation comprises following effective components: protein, fat, carbohydrates, composite vitamins, composite mineral compounds, taurine, choline, and the like. The protein is provided in forms of nereis protein, whey protein, arginine and glutamine. The fat is provided in forms of nereis fat, alpha-linolenic acid and linoleic acid. The carbohydrates are provided in forms of nereis polysaccharides, glucose, cane sugar, maltodextrin, microcrystalline cellulose and corn starch. Components and a ratio are adjusted according to nutrition and metabolism needs for burn patients so as to develop the personalized enteral nutrition preparation for the burn patients. The enteral nutrition preparation provides balanced nutrition for the patients and improves life quality of the patients.

The invention belongs to the field of chemical engineering, and particularly relates to a mercaptan-modified epoxy adhesive prepolymer capable of being quickly cured at room temperature and a preparation method thereof. The mercaptan-modified epoxy adhesive prepolymer is composed of (1) a mercaptan compound containing two or more-SH structures; (2) terminated epoxy ether or terminated epoxy silicone oil or epoxy resin of which the terminal group contains two or more than two groups; and (3) an amine curing agent. The viscosity of the prepolymer can be adjusted according to actual application requirements, so that the application range of mercaptan in the adhesive industry is greatly expanded.

The invention relates to a method for preparing L-glufosinate ammonium by using a biological multi-enzyme coupling method. The method comprises converting D, L-glufosinate ammonium into L-glufosinateammonium in a presence of (R)-transaminase, (S)-transaminase, an amino receptor and an amino donor. The method can realize a high-efficiency resolution of high-concentration D, L glufosinate ammoniumto prepare the L-glufosinate ammonium.

The invention belongs to the field of organic electroluminescence and relates to an organic electroluminescent device. Organic light emitting diodes are internally provided with black matrix layers; each matrix layer occupies a certain area proportion in each organic light emitting diode, so that light reflection area can be effectively reduced; a reflection rate of the organic electroluminescent device is reduced on the premise of not sacrificing brightness and power consumption of the organic electroluminescent device; and furthermore, the organic electroluminescent device is simple in structure and suitable for large-scale industrial production application. At the same time, the invention relates to a preparation method of the organic electroluminescent device. The purpose of reducing the reflection rate of the organic electroluminescent device on the premise of not sacrificing the brightness and the power consumption of the organic electroluminescent device can be achieved by arranging the matrix layers in the organic light emitting diodes only by a photoetching technology, the technology is simple, and the preparation cost is low.