11results about How to "Promote high-value utilization" patented technology

The invention aims to provide a preparation method and application of a CMC / PVA active packaging film coated with chitosan-tannic acid on the surface, and belongs to the field of food preservation. Comprising the following steps: firstly, preparing a CP40 film, and then preparing a CP40 / CT% composite film: preparing a chitosan solution with the mass concentration of 1%, adding tannic acid TA into the chitosan solution, stirring for 30 minutes in a shading manner at room temperature to form a CT coating solution, flatly laying the prepared CP40 film on a planar carrier, coating the surface of a substrate film with the CT coating solution, and putting the composite film and the carrier into a drying oven at 45 DEG C for constant-temperature drying, so as to obtain the CP40 / CT% composite film. And after the solvent of the coating layer is completely volatilized, taking out and stripping to obtain the CP40 / CT% composite film. Under the action of hydrogen bonds and electrostatic attraction, a compact network structure of an amorphous-weak crystal region is formed in the composite film, so that the interface bonding strength of the film is enhanced, and the rigidity and flexibility of the film are balanced. The physical and chemical properties and biological activity of the composite membrane are synergistically optimized, and the composite membrane has obvious degradation signs after being buried in soil for 35 days and belongs to a biodegradable material.

The invention discloses a magnetic refrigeration alloy with a triangular anti-contusion structure and a preparation method and application of the magnetic refrigeration alloy, the chemical formula of the magnetic refrigeration alloy is ErPd2Sb, the phase change temperature is 0.56 K, and when the magnetic field change is 7T, the maximum magnetic entropy of the magnetic refrigeration alloy is changed to 21.6 J.kg <-1 >. K <-1 > (1.4 K); when quasi-adiabatic demagnetization refrigeration equipment is used for testing, when the initial magnetic field is 6T and the initial temperature is 2K, the lowest temperature that ErPd2Sb can reach is 0.255 K. The preparation method comprises the following steps: 1) weighing raw materials Er, Pd and Sb, putting the raw materials into a crucible of a high-vacuum arc furnace, filling protective gas, and smelting; and (2) after smelting is completed, a sample is completely wrapped with a tantalum sheet and sealed in a quartz tube to be annealed, and the low-temperature magnetic refrigeration alloy is prepared. The method does not need to use acid or alkali or other substances which cause serious pollution to the environment, has the remarkable advantages of being green and environmentally friendly, and is simple in preparation process and suitable for large-scale industrial production.

This invention provides a road base material based on sludge and construction waste, its preparation method, and its application. The road base material includes a base component and an admixture component. The base component includes: 45-55% recycled coarse aggregate, 20-35% recycled fine aggregate, 15-25% sludge, 4-6% cement, and 1-4% water. Both the recycled coarse and fine aggregates are derived from construction waste. The admixture component includes quicklime, sodium hydroxide, and zinc ricinoleate. The mass percentage of quicklime to sludge is 4-8%, the mass percentage of sodium hydroxide to sludge is 0.1-0.2%, and the mass percentage of zinc ricinoleate to sludge is 0.2-0.5%. This invention promotes the high-value utilization of urban solid waste such as sludge and construction waste, and yields a higher-performance road base material based on sludge and construction waste.

The application discloses a kind of mechanically activated coal gasification slag-based cementitious materials and preparation method thereof, and relates to coal gasification furnace slag solid waste resource utilization.Preparation method includes the following steps: S10, obtaining pretreated coal gasification slag;S20, pretreated coal gasification slag is mixed with fused salt according to mass ratio (4-19) :1, and fused salt blend is obtained;S30, fused salt blend is mechanically ground, and activated coal gasification slag is obtained;S40, activated coal gasification slag, Portland cement and water are respectively taken and stirred and mixed, and precast slurry is obtained;S50, precast slurry is cast into shape and cured, and mechanically activated coal gasification slag-based cementitious material is obtained.The application precisely controls mechanical grinding parameters, and improves the cementitious performance of coal gasification slag in a targeted manner, meeting the diversified needs of cementitious materials in different application scenarios in actual engineering.

The application discloses an oil product catalyst preparation method, an oil product catalyst and an oil product, and relates to the technical field of catalysts, in particular to an oil product catalyst preparation method, an oil product catalyst and an oil product. The application discloses the following steps: firstly, a Na-Y zeolite raw powder and a NaOH solution are stirred and mixed to obtain a mixed solution; then, the mixed solution is cooled to room temperature; then, dilute nitric acid is used to adjust the pH value of the mixed solution cooled to room temperature, and when the pH value is adjusted to a predetermined value, the mixed solution is washed with deionized water to obtain a solid mixture; then, the solid mixture is dried to obtain a modified Y-type zeolite; and finally, the modified Y-type zeolite is uniformly mixed with a binder, an additive, a dispersant and a solvent and is stirred to obtain a uniform plastic slurry. The application adopts a NaOH desiliconization-dilute nitric acid neutralization treatment method, so that more mesopores and macropores of the zeolite molecular sieve are constructed / retained, the problem of retention and deposition of oligomerization macromolecules (C10+) is further solved, and the alkaline sites of the zeolite skeleton are not damaged.

This invention discloses a high-energy-storage flexible wood fiberboard, its preparation method, and its applications, belonging to the field of wood functional materials. It disperses a non-isocyanate polyurethane formed by the reaction of epoxidized soybean oil cyclic carbonate and soybean protein within polyacrylamide chains. The hydrogen bonding between the polyacrylamide chains and the non-isocyanate polyurethane transfers external stress and dissipates energy, thereby improving the adhesive's toughness. Simultaneously, a conductive material is introduced into the three-dimensional network structure formed by mixing porous wood fiber materials to prepare conductive composite wood fibers. A multi-dimensional, multi-scale hierarchical directional composite assembly technology of wood fiber materials and novel conductive adhesives is employed to achieve directional charge transfer from the polymer to the wood pores, giving the flexible wood fiberboard intrinsically high energy storage characteristics. This helps solve the problem of traditional furniture's single-carrier function and promotes the high-value utilization of wood materials.

The present invention belongs to the technical field of wastewater and waste residue treatment, and specifically relates to a wastewater and waste residue clean treatment system and treatment method, the system includes a smelting module, a waste gas treatment module, a waste water treatment module and a waste salt treatment module arranged in sequence, the waste gas treatment module has a waste gas inlet, a waste water outlet and a desulfurized gypsum slag outlet, the waste water treatment module has a waste water inlet and a waste salt outlet; the waste salt treatment module includes: a first additive supply unit, a carbonization unit, for introducing a first additive and / or a second additive into the waste salt, the second additive being the desulfurized gypsum slag from the waste gas treatment module; a fluorine content detection unit, a control unit, for executing the introduction of a first additive and / or a second additive into the waste salt according to the fluorine content in the waste salt. The present invention can effectively treat the wastewater and waste residue thoroughly, realize efficient treatment of the waste salt produced therefrom to facilitate subsequent cleaning and high-value utilization, and has low de-hardening cost.

The present application relates to the technical field of phosphogypsum building new material production, in particular to a phosphogypsum harmless treatment device, a treatment process and application thereof, the device comprising an aggregate bin, a powder bin, a powder mixer, a conveyor, a mixing blender, a discharge bin and a reservoir, and a phosphogypsum solidified body bin, a phosphogypsum solidification and air drying all-in-one machine, and a phosphogypsum raw material crusher, the device with the above structure is needed to realize the harmless treatment of phosphogypsum, the crushing and harmless treatment processes of phosphogypsum are added to the existing mixing station, the phosphogypsum raw material crusher and the phosphogypsum solidification and air drying all-in-one machine are arranged in the treatment device to crush and harmlessly treat the phosphogypsum, so that the phosphogypsum can be uniformly mixed with other building materials to improve the product quality, and the phosphogypsum harmless treatment process is designed, the material formed by the process forms a complete new technology which can be popularized from manufacturing to application, and achieves the application performance of industrialization and scaling.

The invention discloses a process for efficiently extracting anticancer components from citrus peels, and aims to solve the problems that the characteristics of the citrus peels temporarily stored at low temperature are not adapted, the extraction efficiency is low, the product purity is insufficient and the process is disjointed with industrial production in the prior art. The process comprises the following steps: taking citrus peel which is temporarily stored at 2-8 DEG C for 3-15 days, cleaning and crushing, adding a composite extracting solution containing modified pectinase, a tea polyphenol-beta-cyclodextrin inclusion compound, N-acetyl glucosamine, xylooligosaccharide and the like, and carrying out ultrasonic assistance-oscillation synergistic extraction at 45-55 DEG C; centrifuging and filtering after extraction, adding a chitosan-montmorillonite composite adsorbent for purification, passing through macroporous resin, eluting by adopting an ethanol-citric acid composite eluent, and concentrating and drying to obtain the anticancer component. According to the method, efficient cracking and anti-isomerization of the compound are achieved through component synergism, the extraction rate of the anti-cancer component and the purity of the product are improved, the process operation is simple, the method is suitable for industrial production, and high-valued utilization of low-temperature temporary storage citrus peel by-products can be promoted.

The invention belongs to the technical field of ultra-pure coal preparation, and particularly discloses a method for preparing ultra-pure coal based on cavitation nano bubble flotation, which comprises the following steps: crushing, ball milling, multiple cavitation cycles and flotation, and filtering and drying the obtained clean coal to obtain the ultra-pure coal. Compared with the prior art, the process for preparing the ultra-pure coal by using the physical and chemical method has the advantages that aiming at bituminous coal with relatively high ash content, the ash can be deeply reduced to lt through nano-bubble enhanced flotation; the method can be used for conveniently and quickly preparing the ultra-pure coal, and is beneficial to improving the high-value utilization of the coal.

The invention provides a fused ring sustainable aviation fuel precursor and a preparation method thereof, and a fused ring sustainable aviation fuel and a preparation method thereof. The fused ring sustainable aviation fuel precursor can be used for preparing the fused ring sustainable aviation fuel, and the fused ring sustainable aviation fuel can be synthesized through two steps of normal-temperature normal-pressure photocatalytic cycloaddition and hydrodeoxygenation. The preparation method of the fuel is high in yield, mild in reaction condition, simple in reaction process, few in by-products and low in product separation and purification cost. Tests show that the prepared condensed ring sustainable aviation fuel has the characteristics of high density, high calorific value and low freezing point, the density can be up to 0.873 g / mL, the combustion calorific value can be up to 41.7 MJ / kg, and the freezing point can be as low as-75.0 DEG C. The condensed ring sustainable aviation fuel can be used as an additive or substitute of aviation fuel, and can promote high-valued utilization of biomass resources and achieve the targets of carbon peak reaching and carbon neutralization.