192results about How to "Regulatory activity" patented technology

The invention relates to a combination method of gasification and coke processing from inferior heavy oil, which mainly comprises the following steps of: making the heavy oil raw material in contact with a catalyst, separating product oil gas from a spent catalyst, and sending the oil gas into a subsequent separation system; sending the spent catalyst into a gasification furnace after steam stripping, separating synthetic gas obtained through gasification reaction from a half-regenerated catalyst with part of coke removed, and using the synthetic gas to produce hydrogen or as a raw material gas of C1 chemical synthesis; and sending the half-regenerated catalyst with part of coke removed to a regenerator for complete generation, and reintroducing the regenerated catalyst into a reactor. The active gasification components of the catalyst are alkali metal and alkali earth metal, the content of oxides is 2-30% by taking the total amount of the catalyst as a reference, and the atomic ratio of the alkali metal to the alkali earth metal is (0.05-1.1):1. The combination method is applicable to the production of synthetic gas or hydrogen while processing heavy oil and provides a raw material for hydrogenation process or Fisher-Tropsch synthesis.

The invention discloses a polyester polycondensation catalyst and a preparation method and application thereof. The preparation method of the polyester polycondensation catalyst comprises the following steps of: reacting TiO2/SiO2 sol with a nitrogenous or phosphorous compound; and controlling the grain size of a product to obtain the polyester polycondensation catalyst. The preparation method of the polyester polycondensation catalyst has a simple and convenient process, is easy to operate and is suitable for large-scale industrial production; besides, the catalyst provided by the invention has high catalytic efficiency, not only can catalyze the polymerization of aromatic polyesters and co-polyesters thereof, but also can catalyze the polymerization of aliphatic polyesters and co-polyesters thereof by changing the proportions of components of the catalyst and adjusting and controlling the activity of the catalyst, and has extensive application prospects.

The invention discloses nitrogen-doped carbon aerogel and a preparation method thereof. The preparation method of the nitrogen-doped carbon aerogel comprises the following steps: (1) preparing a trihydroxy pyridine solution, adding resorcinol, adding a formaldehyde solution after the solution is clear, and adding potassium carbonate while stirring; (2) leaving the mixture to stand to form aerogel; (3) performing solvent exchange on the aerogel by using acetone, so as to obtain trihydroxy pyridine-resorcinol-formaldehyde gel; (4) putting the trihydroxy pyridine-resorcinol-formaldehyde gel into a supercritical carbon dioxide extraction instrument, and carrying out carbon dioxide supercritical drying, so as to obtain xerogel; (5) putting the xerogel into a temperature programmed control carbonization furnace, and sintering and carburizing under the inert gas protection, so as to obtain the nitrogen-doped carbon aerogel. The preparation method has the advantages that loss of nitrogen content during the carbonization process is avoided, and the nitrogen content is easier to control as compared with the nitrogen content in the traditional doping manner in which melamine (most of which is decomposed) is adopted as a nitrogen source; the prepared nitrogen-doped carbon aerogel can be applied to the fields of supercapacitors, nonmetallic electrocatalysts, lithium ion batteries, fuel cells, lithium-sulfur batteries, and the like.

The invention provides a dialkoxyl magnesium supported solid catalyst. The catalyst is prepared by complexing 1, 3-di-ethers into an internal electron donor or complexing 1, 3-di-ethers and esters into internal electron donors by taking a dialkoxyl magnesium compound as the carrier. The invention further provides a method for preparing the solid catalyst and an olefin polymerization catalyst containing the solid catalyst. The dialkoxyl magnesium supported solid catalyst shows high activity through the catalyst obtained by using different 1, 3-di-ethers as well as the complex formulation of 1, 3-di-ethers and esters.

The invention discloses high-solid low-viscosity hydroxy acrylic resin as well as a preparation method and application thereof. During preparation, a first part of solvent and mono-glycidyl ether are added into a reaction kettle, stirred and heated to 140-180 DEG C; a first part of initiator and a chain transfer agent are added into an acrylic monomer mixture, the obtained mixture is dropwise added into a reaction kettle within 3-6 h, and the temperature is kept for 0.5-1h after dropwise addition; the residual initiator and the residual solvent are mixed uniformly and added into the reaction kettle within 20-40 min, the temperature is kept for 1-2 h after the addition is completed, a hydroxyl oligomer is added, stirring is performed for 30-60 min, the temperature is lowered for material discharge, and the high-solid low-viscosity hydroxy acrylic resin is obtained. The resin solid accounts for 70% or higher, the viscosity is as low as 300mPa*s. The technology for preparing the hydroxy acrylic resin is simple, the cost is low, and a bi-component polyurethane coating film has excellent water resistance, acid and alkali resistance and mechanical properties.

The invention relates to a seedling culture method, in particular to a broussonetia papyrifera seedling culture method. The method comprises the following steps: (1) selection of cutting woods; (2) treatment of cutting slips; (3) preparation of a foundation bed; (4) cuttage; and (5) cuttage post-management. By the steps of selection of cutting woods, treatment of cutting slips, preparation of a foundation bed, cuttage and cuttage post-management, a scientific and reasonable planting management mode is formed, so that rooting of branches can be effectively promoted, robust development of roots is facilitated, and growth of branches and roots is promoted; nutrition can be absorbed in a rooting process, so that the content of endogenous hormones in plants and the activity of important enzymes can be adjusted and controlled; and the metabolic intensity of the plants is adjusted, the survival rate is high, the pest and disease damage is low, and the growth condition of the root system is good.

The invention provides a clinical nutritional formula special for kidney dialysis. The clinical nutritional formula special for kidney dialysis comprises the following components in parts by weight: 15-25 parts of protein, 8-12 parts of fat, 50-54 parts of carbohydrate, 3-5 parts of dietary fiber, 0.3-0.6 part of macro-elements, 0.01-0.05 part of trace elements, 0.005-0.02 part of fat-soluble vitamin, 0.01-0.2 part of water-soluble vitamin, 0.05-1 part of dietary essence, 0.05-2 parts of medicinal and edible components, 0.1-3 parts of natural plant compounds, and 0.005-2 parts of new resourcefood; and the invention also provides a preparation method of the clinical nutritional formula. The clinical nutritional formula special for kidney dialysis provided by the invention can provide balanced nutrient substances for patients with renal dialysis, and can maintain the stability of the body quality of the patient, enhance the ability of immune response and the repair function, reduce inflammation, and improve the activity of scavenging oxygen free radicals and the endothelial cell function.

The invention discloses a catalyst used for gas phase catalytic hydrogenation of a hexafluoroacetone hydrate for preparing hexafluoroisopropanol. The catalyst comprises a first catalyst, a second catalyst and a carrier, wherein the first catalyst consists of palladium and copper; the second catalyst is selected from one or the combination of K, La and Bi; and the catalyst is loaded on an active carbon carrier. The invention further discloses a preparation method of the catalyst and application of the catalyst to gas phase catalytic hydrogenation of the hexafluoroacetone hydrate for preparing hexafluoroisopropanol. The catalyst prepared with the method has the advantages of high catalytic hydrogenation activity, high hexafluoroisopropanol selectivity, superior catalyst stability, mild reaction condition, simple preparation process, and the like.

The invention discloses a preparation method for an Fe-N-C catalytic material with controllable edge active sites. Under the premise of keeping the original MOF (metal-organic framework) morphology, the preparation method which adopts the method of in-situ embedded molecular aggregate and then high-temperature pyrolysis is intended to change the dosage of small molecules to regulate the frameworkpore structure and the degree of C-N bond rupture, and realizes the control of edge active site number and chemical environment around a single atom for the first time, thus achieving more excellent electrochemical properties. The method adopts an appropriate dosage of small molecules to obtain a ORR (oxygen reduction reaction) catalyst with the specific surface area of 1392.91m<2>/g, the half-wave potential in 0.1M KOH can reach 0.915V(vs.RHE), and the catalytic performance of the Fe-N-C catalytic material is better than the catalytic performance of commercial platinum-carbon catalyst and similar materials. Therefore, the method realizes atom-level active site control and molecule-level structure control, reference significance is provided for the reasonable design of high-performance single-atom catalysts.

The invention discloses a preparation method of an alumina thin film in the field of a thin film transistor. The preparation method comprises the following steps of: preparing aluminium precursor solution, i.e., dissolving a precursor material containing aluminium metal ions and a stabilizer in solution and sufficiently stirring to sufficiently dissolve the precursor material and the stabilizer to obtain the precursor solution; and preparing the alumina thin film, i.e., coating the prepared reaction solution on a coating surface to form a film and carrying out heat treatment program to obtain the alumina thin film. The invention also relates to the alumina thin film prepared by the preparation method and application of the alumina thin film in the transistor. The application comprises the thin film transistor of the alumina thin film and a preparation method of the thin film transistor. According to the preparation method of the alumina thin film, which is disclosed by the invention, by adding a right amount of stabilizer for stabilizing an alumina precursor material, a metal organic complex is formed by the precursor material of aluminium through the coordination dissolution reaction; the complex can be well dissolved in the solution and has low thermal decomposition temperature; and the heat treatment temperature in the preparing process is reduced.

The invention discloses a calcium-iron-silicon-based composite material for restoring heavy metal polluted acid soil and application thereof. The mass ratio of component elements of the composite material is calcium:iron:silicon:manganese:magnesium:phosphorus:aluminum= 30-40:19-25:8-12:1-3:5-6:1-3:2-5, the composite material is particularly prepared from, by volume, 55-70% of calcium silicate, 20-30% of calcium ferrite and 5-15% of compound mixture, and the compound mixture is a mixture of calcium-iron-aluminum oxides, calcium iron silicate, calcium aluminate, calcium-aluminum oxides, calcium-manganese-iron oxides, hydroxyl aluminium phosphate and hydroxyl manganese phosphate. The composite material is used for improving and restoring the heavy metal polluted acid soil, the pH value of the soil can be increased by 0.5-2.5 units, the content of effective state heavy metal in the soil is reduced by 64-98%, the content of heavy metal in agricultural products is reduced by 33-94% compared with a control group, and the yield of the agricultural products is increased by 16-1412% compared with the control group.

The invention discloses a polysaccharide-containing moisturizing and oil-controlling composition and an application thereof in cosmetics. The composition is prepared from the following components in percentage by mass of 0.05 to 20% of polysaccharide moisturizing composition, 0.01%-20% of an oil control composition, 0.5%-20% of an emollient, 0.05%-10% of an emulsion stabilizer, 0.1 to 3.0% of preservative and the balance of auxiliary materials and water. The key technology of the polysaccharide-containing moisturizing and oil controlling composition is that moisturizing and oil controlling areconducted at the same time, the normal skin barrier function is restored, and the polysaccharide moisturizing composition has a good moisturizing effect; the oil control composition efficiently inhibits the activity of 5 alpha-reductase and efficiently inhibits grease and metabolites secreted by sebaceous glands, hair follicles and sweat glands of facial skin, the oil control composition not onlyinhibits the activity of the 5 alpha-reductase, but also shrinks the pore diameter and reduces the channel for grease to be secreted out of epidermis, and the oil control effect is synergistically enhanced through a physical method; and the cosmetic prepared by the invention has relatively low irritation and allergy.

The invention discloses a polyester polycondensation catalyst, a preparation method and application thereof. The preparation method comprises the following steps that: 1) a titanium-containing compound is hydrolyzed in water and/or an alcoholic solution to obtain a TiO2 sol, a silicon-containing compound is hydrolyzed in the water and/or the alcoholic solution to obtain a SiO2 sol, and the two sols are mixed evenly to obtain a TiO2/SiO2 sol; and 2) the TiO2/SiO2 sol and a nitrogen-containing or phosphorus-containing compound react to obtain a target product. The method for preparing the polyester polycondensation catalyst has simple and convenient process, is easy to operate, regulates and controls the activity of a catalytic center Ti through the coordination effect of the nitrogen-containing or phosphorus-containing compound with high thermal stability, remarkably reduces the using amount of the Ti, and fully inhibits the catalysis effect of the catalyst on a condensation side reaction and the thermal degradation of polyester. The catalyst does not need to add a toner during the use, has high catalytic efficiency, and can be used for catalyzing the polymerization of aromatic and aliphatic polyesters; and the using amount of the catalyst is greatly reduced and is about 0.0003 to 0.05 percent of the theoretical yield of the polyesters.

The invention discloses a brier grape enzyme beverage and a brewing process thereof. The brier grape enzyme beverage brewed by adopting the brewing process has bright color and luster, has a fresh and pleasant natural aroma, brings delighted feeling, is palatable in sweetness and sourness, contains rich nutrients and physiological active substance contents, has the quality characteristics significantly different from enzyme beverages brewed by mixed fruit juice and other brier grape beverages produced by other processes, and has a unique style.

The invention relates to an in-situ remediation method for organic contaminated underground water, comprising the specific steps that S2O8<2-> is injected to the organic contaminated region of underground water, an electrified iron electrode is inserted into the organic contaminated region, Fe (II) is provided by regulating the current magnitude of the iron electrode, when the iron electrode is electrified by positive current, the iron electrode partially is dissolved and generates Fe (II), so that S2O8<2-> is activated; when the iron electrode is electrified by negative current, the iron electrode is in the passivation state, so that the reaction activity of S2O8<2-> is restrained and even terminated; and when S2O8<2-> is used up, the iron electrode is used as the anode to continuously electrolyze, so as to provide Fe<2/3+> and OH<->, so that the pH of the system is increased to neutral state. The in-situ remediation method solves the difficult problems of in-situ regulation (enhancing and restraining) on the activity of peroxydisulfate and heavy metal release in the in-situ chemical oxidization remediation of peroxydisulfate.

The invention discloses a chitosan or polyvinyl alcohol composite cataplasm matrix. The indigents of the invention and the weight of each indigent are as following: chitosan: 0.25 to 0.75g, polyvinyl alcohol: 0.75 to 1.25g, glutaric dialdehyde with the mass concentration being 2 percent: 0.28 to 0.32g, water: 16 to 20g, propanetriol: twice as much as the sum weight of chitosan and polyvinyl alcohol. The preparation procedure is as following: dissolving the polyvinyl alcohol with water and then adding glacial acetic acid to form acetum which is then added with chitosan until stirring to dissolve; adding propanetriol and glutaric dialdehyde successively, which is statically crosslinked to obtain hydrogel; coating the well-prepared hydrogel on non-woven fabrics evenly and then coating a polyethylene film. The chitosan or polyvinyl alcohol composite cataplasm matrix of the invention does not stimulate skin and has good property.

The invention relates to a red mud composite fertilizer and a preparation method thereof. By weight, the red mud composite fertilizer comprises 60-70 parts of red mud, 3-5 parts of a red mud activator, and 30-40 parts of a nitrogen phosphorus and potassium compound fertilizer, wherein the mass ratio of N, P2O5 and K2O in the compound fertilizer is 1:0.3-0.6:0.3-0.5. The red mud activator comprises, by weight, 30-40 parts of activated carbon, 50-60 parts of medical stone, 15-20 parts of bamboo fiber, 5-6 parts of phytase, 2-3 parts of magnesium sulfate, 1-2 parts of zinc chloride and 5-10 parts of polyacrylamide. The red mud composite fertilizer has comprehensive nutrition, contains more than 40 nutrient elements, and can comprehensively supply nutrients needed by crops. The water stability of the product is increased by more than 10 times. The product has very strong chelation, adsorption and ion exchange capacity to nutrient elements, can enrich and store the nutrient elements in soil and fertilizers, coincides with crops' need for fertilizers and has slow release performance, and achieves ''on-demand supply'' or ''on-demand release'', thereby overcoming the contradiction between rapid fertilizer loss and slow crop absorption.

The invention discloses children formula milk powder capable of improving immunity, and belongs to the technical field of dairy products. The formula milk powder contains 180-375 parts of skim milk powder, 95-150 parts of concentrated whey protein powder, 90-110 parts of vegetable oil, 65 parts of 1, 3-dioleoyl-2-palmitic acid triglyceride, 130 to 235 parts of high fructose corn syrup; 220-300 parts of lactose, 2 parts of compound vitamin, 1 part of compound minerals, 7 parts of calcium carbonate, 0.58 part of choline chloride, 0.4 part of taurine, 6.58 parts of fructo-oligosaccharide, 2.4 parts of docosahexaenoic acid powder, 2 parts of bovine colostrum powder, 1.1 parts of lactoferrin powder, 0.2 part of N-acetylneuraminic acid and 0.3 part of bifidobacterium animalis Bb-12 freeze-driedpowder. The formula milk powder for children is balanced in nutrition and can effectively improve immunity. The preparation method of the children milk powder is simple in technological process, easyto operate and suitable for large-scale production.

The invention discloses a nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles, and a preparation method and application thereof, and relates to a preparation method of a porous carbon material. The invention aims to solve the problems that conventional methods for preparing porous carbon are tedious in operation steps, time-consuming, high in overpotential, high in equipment requirements and harmful to the environment, limit the preparation of the porous carbon material, are not suitable for large-scale production and cannot meet the new application requirements inthe fields of energy, catalysis, biology and the like. The nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles grows on foamed nickel in situ. The preparation method comprises the following steps: 1, pretreating the foamed nickel; 2, growing a cobalt-based zeolite imidazate framework structure material nanosheet array on the foamed nickel in situ; and 3, carrying outcalcining. The c nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles is used as a catalyst for hydrogen production through water electrolysis in the field of energy. The nickel-nitrogen co-doped porous carbon material loaded with cobalt nanoparticles can be obtained by using the method.

The invention discloses child formula milk powder capable of prompting calcium absorption and growth, and belongs to the technical field of dairy products. The formula milk powder contains skimmed milk powder, desalted whey powder, vegetable oil, 1, 3-dioleoyl-2-palmitic acid triglyceride, high fructose corn syrup, lactose, compound vitamins, compound minerals, choline chloride, taurine, fructo-oligosaccharide, docosahexaenoic acid powder, bovine colostrum powder, milk mineral salt, spina date seed powder, hydrolyzed yolk powder, phosphatidylserine, lactoferrin powder, bifidobacterium animalisBb-12 freeze-dried powder and xanthophyll. The formula milk powder for children has the effects of promoting calcium absorption of children, promoting growth of children and benefiting brain and vision development. The formula milk powder is simple in preparation process and suitable for large-scale production.

The invention discloses fermentation type soybean milk added with edible mushrooms and dried fruit and a production method of the fermentation type soybean milk. The fermentation type soybean milk is produced by subjecting sprouted-soybean milk, edible-mushroom pulp, dried-fruit pulp, whole milk powder and other ingredients to preprocessing, mixing, homogenizing, sterilizing, cooling, inoculating, fermenting and blending. The fermentation type soybean milk has the advantages that the nutritional and functional values of sprouted soybean, the edible mushrooms, the dried fruit and functional oligosaccharides are perfectly combined, and the fermentation type soybean milk is a large breakthrough and progress.