102results about How to "Adapt to large-scale industrial production" patented technology

The invention discloses a method for preparing a peanut protein composite fiber by using ionic liquid. The method comprises the following steps of: dissolving peanut protein and polyvinyl alcohol in imidazole ionic liquid respectively to obtain a peanut protein ionic liquid solution and a polyvinyl alcohol ionic liquid solution; mixing the peanut protein ionic liquid solution and the polyvinyl alcohol ionic liquid solution in a mixed ratio of 1:3-1:5; adding an aid to obtain a spinning solution, and entering a coagulating bath; preparing a peanut protein/polyvinyl alcohol composite fiber by awet spinning method in the coagulating bath; and stretching, washing, performing acetal treatment, applying oil, drying, curling, sizing, and thus obtaining the mixed fiber. By the method, the ionic liquid instead of strong acid and strong alkali is used as a solvent in the process of synthesizing a peanut protein fiber, so that the peanut protein and the polyvinyl alcohol can be quickly dissolved at high concentration and a low temperature, and the preparation process is non-toxic and pollution-free at the same time.

The invention relates to a synthesis method of methyl-alpha-fluoroacrylate and analogues thereof. The method comprises the following steps: step 1, based on methyl fluoroacrylate and dimethyl oxalate serving as raw materials, dissolving the raw materials in a solvent, and adding base for carrying out condensation reaction so as to generate sodium enolate or potassium enolate intermediate; and step 2, reacting sodium enolate or potassium enolate intermediate with paraformaldehyde or trioxane in the solvent so as to generate methyl-alpha-fluoroacrylate. According to the invention, cheap methyl fluoroacrylate and dimethyl oxalate are used as the raw materials, and the low-cost solvent and other reactants are selected, thus the method has the advantages of low preparation cost and high yield and can be suitable for large-scale industrial production.

The present invention discloses an extract of acanthopanax effective part, a preparation method thereof and an application thereof. In the acanthopanax extract of the present invention, total glycoside takes 20 to 64wt percent of the gross extract; total flavone takes 20 to 65wt percent of the gross extract; total glycoside total flavone takes 50 to 90wt percent of the gross extract. The preparation method of the acanthopanax effective part of the present invention is simple and convenient and causes little environmental pollution; the extracting and separating carrier can be used repeatedly for a plurality of times; the present invention has low cost and is applied to mass industrialization production.

The invention relates to a finishing method for non-woven fabrics with high isolation performance and materials of the non-woven fabrics with the high isolation performance. The finishing method combines on-line liquid feeding and normal-pressure low-temperature plasma processing, carries out normal-pressure low-temperature plasma processing before or after on-line liquid feeding, and forms a fluorine-containing polymer layer on the surface of the non-woven fabrics, so as to realize high isolation performance. The invention provides the finishing method for the non-woven fabrics which is novel, simple in process and good in finishing effect. Compared with the traditional saturated steeping, the finishing method has small influences on the non-woven fabrics, is high in production efficiency and has low energy consumption; compared with the existing plasma processing method, vacuum conditions are not needed, on-line liquid feeding is directly carried out, and low-temperature plasma processing is directly carried out under normal pressure, and other additional equipment conditions are not needed; and the contact angle between the prepared non-woven fabrics with high isolation performance and water can reach 120-160 degrees, and the prepared non-woven fabrics with high isolation performance has good air permeability and soft and comfortable feel, can reach requirements for resisting alcohol, oil and blood of each industry, and can well meet the large-scale industrial production.

The invention belongs to the technical field of chemical synthesis and provides a preparation method of 3-alkoxy alkyl propionate. The method is characterized by using solid alkali as a catalyst and alkyl acrylate and lower alcohol as raw materials to carry out heterogeneous catalytic alkoxylation reaction, and comprises the steps that an alkoxylation reaction product enters a light component removal rectifying tower to be separated, and lower alcohol and an alkyl acrylate light component, which are recovered from the tower top, are cycled into the step of alkoxylation reaction; a heavy component mainly containing a product 3-alkoxy alkyl propionate is obtained in a tower reactor; the heavy component material in the light component removal rectifying tower reactor is separated by a refined rectifying tower, the product 3-alkoxy alkyl propionate is obtained at the tower top and a few high-boiling substances are obtained in the tower reactor. The preparation method has the beneficial effects that after being separated and recovered by the rectifying tower, the used raw materials and solid alkali serving as the catalyst can be directly put into reaction again without being reprocessed, thus greatly improving the utilization efficiency of the raw materials and the catalyst, reducing the production cost and avoiding environmental pollution.

The invention discloses a preparation method of a radiation-proof cement clinker mineral phase system, which comprises the following steps of: (1) raw material preparation: raw materials are uniformly mixed according to a ratio, and are ground until the amount of residues on a 180-mesh square hole sieve is less than or equal to 10%; and (2) high temperature sintering: the ground powder in the step 1 is pressed into cylindrical test pieces, and the cylindrical test pieces are placed in a corundum crucible and are calcinated for 1 to 3 hours at a high temperature in a reheating test furnace to obtain the desired mineral phase system. The raw materials are calcium carbonate, alumina, and boron oxide, or calcium carbonate, alumina, boron oxide, and iron oxide. Through the mineral phase systemprepared by the preparation method disclosed by the invention, neutrons can be absorbed, the heat consumption of a cement clinker preparation process is reduced, the normal setting and hardening of cement are promoted, the strength of cement is improved, the mass concrete cracks can be inhibited, and the durability of concrete is improved. The method provided by the invention is simple in process, is easy to control and adapts to large-scale industrial production.

The invention discloses a rapid propagation method for holcoglossum flavescens. Rapid propagation of holcoglossum flavescens is completed through the steps of seed germination, induction of protocorm, differentiation culture, strong seedling culture, rooting culture, acclimatization and transplant and the like. Compared with a traditional division method, the growth coefficient of holcoglossum flavescens is improved by more than 5 times, the planting percent reaches 95%, the survival rate of transplanting reaches more than 85%, meanwhile, the method has the advantages of being large in increment coefficient, strong in tillering capacity, high in growth speed, strong in plant, low in browning ratio, high in survival rate of transplanting, and low in cost, culture medium is easy to prepare, and the method can be applied to large scale industrial production.

A non-solvent and non-heating method for synthesizing potassium diformate relates to a compound preparation method, which is a one-step potassium diformate synthesis method that takes potassium hydroxide and formic acid as raw materials and requires no solvent and no heating. A normal atmospheric pressure refluxing reaction method is adopted, and the solid potassium hydroxide is added into the formic acid by a molar ratio of 1:2.0-3.0 between the solid potassium hydroxide and the formic acid; the reaction temperature is kept between 50-90 DEG C when the materials are added; the reaction continues when the materials adding stops and is not stopped until the temperature falls to 20-50 DEG C; the reaction product is cooled and crystallized at room temperature, and the crystallized product is dried at a temperature of 50-60 DEG C and finely grinded, then the potassium diformate is acquired. No heating is required in the reaction, thereby the reaction intensity is well controlled while the reaction heat is fully utilized; the product is synthesized without solvent, thereby saving the evaporating and concentrating processes, shortening the production period and improving the production efficiency; the yield of the potassium diformate is as high as 99 percent or over. The method is suitable for large scale industrial production.

The invention discloses an automatic rotary microbial spore incubator. The incubator contains a rack, a sterile air adding tube, a steam adding tube, a vent pipe, an incubation box, an electric motor controller, an electric motor, a reduction gearbox and a temperature controller. The automatic rotary microbial spore incubator is characterized in that the incubation box is composed of an outer box body and an inner box body; a water storage cavity is between the outer box body and the inner box body; a heating rod is fixed in the water storage cavity; the inner wall of the incubation cavity is provided with a temperature-sensing probe; the heating rod and the temperature-sensing probe are connected with the temperature controller through wires; rotation shafts on the outer walls of both sides of the outer box body are fixed in two positioning bases of the rack through bearings respectively; the driving shaft of the reduction gearbox is fixedly connected with one rotation shaft on the outer box body; and the end part of the vent pipe passes through the other rotation shaft of the outer box body to enter the incubation cavity. By adopting the automatic rotary microbial spore incubator, spores can be produced automatically; and the produced spores have uniform and stable quality and can be widely used in microbial fermentation production enterprises.

The invention discloses a preparation method of low-cost nano-porous silica powder. The method comprises the following steps of etching of silica powder, namely etching the pretreated silica powder by using an etchant, etching for 1-600 minutes to obtain porous silicon containing nanoscale channels, wherein the apertures are 1-1,000nm and the etchant is a mixed solution prepared from HF, a metal salt, ethanol and water; and treatment of the silica powder, soaking the porous silicon containing nanoscale channels into an acid solution for soaking, and cleaning and removing impurities to obtain the nano-porous silica powder. According to the preparation method, the metal salt is introduced as the etchant, and the shape and form, the aperture, the pore-forming speed and the like of the porous silica powder can be controlled through controlling the concentration of a corrosive solution. Preparation of porous silicon is achieved by using reaction heat release at a room temperature, heating equipment is avoided, meanwhile, the reaction speed is high and the porous silicon can be prepared within a few of minutes in general.

The present invention provides a method for preparing hesperetin, comprising: suspending hesperidin or neohesperidin in water, and adding a sodium hydroxide solution until the hesperidin or the new hesperidin is completely dissolved, and btaining a substrate preparation solution; adding the substrate preparation solution to a buffer containing alpha-L-rhamnosidase and beta-glucosidase at a rate of0.1 to 1 mL/min for stirring at a flow rate of 0.1 to 1 mL/min to obtain a reaction solution, and after the completion of the addition, continuing the reaction for 0.5 to 1 h, the pH of the reactionsolution is 6.0 to 7.0, and the reaction temperature is maintained at 45 to 65 DEG C. The alpha-L-rhamnosidase is derived from Streptomyces, and the beta-glucosidase is derived from the genus Thermotoxin; adjusting the pH of the reaction solution to 3.0 to 5.0 to completely precipitate the solid product, and collecting the solid product to obtain the hesperetin. The method is efficient, simple, green and environmentally friendly, and can be applied to industrial mass production.

The invention provides an ezetimibe tablet and a preparation method thereof. The ezetimibe tablet is prepared from the following components in parts by weight: 10 parts of ezetimibe, 10 parts of a disintegrating agent, 2 parts of a solubilizing agent, 55 to 70 parts of a filling agent, 5 to 15 parts of microcrystalline cellulose, 5 parts of an adhesive and 0.5 parts of a lubricant. According to the ezetimibe tablet disclosed by the invention, the fluctuation of the dissolution of the ezetimibe tablet can be effectively reduced, the dissolution difference is reduced, the safety of the ezetimibe tablet in a medicine using process is improved, and the fluctuation of in-vivo absorption of the ezetimibe tablet is reduced; meanwhile, according to the preparation method of the ezetimibe tablet, a production process is simplified, and the method can adapt to large-scale industrial production.

The invention discloses a back-contact solar battery and the fabrication method thereof. The back-contact solar battery comprises electrodes fabricated by silk screen printing technology, an n-type crystal Si substrate with a square resistance of 50 to 300 omega/square and a thickness of 100 to 300 mum, an anti-reflection layer and a passivation layer arranged on the front surface of the Si substrate, and interdigitated metal electrode pairs printed on the back surface, wherein the electrode pairs include Al/Ni electrode and Sb/Ni electrode; the Al/Ni electrode contains Al 0.1 to 10 wt% with a purity larger than 99.99% and particle size less than 10 mum; and the Sb/Ni electrode contains Sb 0.1 to 10 wt% with a purity larger than 99.99% and particle size less than 10 mum. The back-contact solar battery suits industrial production, and has lower cost and high photoelectric conversion efficiency.

The invention discloses a method for preparing a magnetization based surfactant and application. The method comprises the following steps of: (1) isomer combination, namely uniformly combining more than three or less than six of triethanolamine, sodium sulfate, ethylene diamine tetraacetic acid, sulfite yeast distiller wort, calcium dodecy and sodium oxalate; and (2) magnetization, namely magnetizing the isomer by using a permanent magnetic field to obtain the magnetization based surfactant. The method is simple and has convenient operation. The surfactant is used for producing conventional portland cement, portland slag cement, portland fly ash cement, portland-pozzolan cement and composite portland cement to effectively consume industrial waste residue, volcanic ash and other mixed materials, reduce environmental pollution, effectively solve the problems that doping of the mixed materials causes early-strength reduction, hardening slowdown, label reduction and the like of the cement, greatly improve yield and performance of the cement, reduce consumption of energy and resources, and provide powerful technical guarantee for low-carbon cement production.

The invention discloses a composite functional microbial preparation, and a preparation method and application thereof. The composite functional microbial preparation is prepared from the following components in parts by mass: 85-93 parts of attachment matrixes, 2-8 parts of basic nutrient solutions and 1-3 parts of composite microbial agents, wherein the composite microbial agents contain entomogenous verticillium agents, aspergillus oryzae agents, bacillus mucilaginosus agents and bacillus subtilis agents. The preparation method includes the steps of mixing the basic nutrient solutions withthe attachment matrixes, aging, and adding the composite microbial agents for fermentation to obtain the preparation. The preparation can effectively alleviate the toxicity of heavy metals in the plant rhizosphere soil, and can improve the soil structure and the plant root environment, enhance soil nutrition and promote plant growth; the preparation has the advantages of simple process, low production cost and the like, and can adapt to large-scale industrial production; the preparation provided by the invention can be used for promoting energy plant restoration of heavy-metal contaminated soil, thereby having good application value and application prospect.

The invention discloses a method for extracting an active substance from guava leaves. The method comprises the following steps: (1) pulverizing the guava leaves and sieving the material, and then using an ethanol solution containing ionic liquid as a solvent for ultrahigh pressure extraction; 2) performing ultrasonic extraction on an obtained extract, performing centrifugation on the obtained extract, and taking a supernatant for standby; and (3) stirring the supernatant while adding ethanol, performing standing and centrifugal filtering and performing freeze-drying on the precipitate to obtain the active substance. The extraction method of the invention combines the ultrasonic wave and a high pressure technology without interference, and realizes the coordinated treatment of the ultrasonic wave and a high pressure reaction, the mechanical effect, warming effect, physical and chemical effect (including dispersion effect, thixotropic effect, and cavitation effect) of ultrasonic waves,as well as excellent directionality, strong penetrating ability, and high efficiency and low energy consumption of ultra-high pressure extraction are used, the extraction rate can be effectively increased, energy consumption can be reduced, the extraction time can be saved, and the method is suitable for large-scale industrial production.