14results about How to "Realize industrial application" patented technology

This invention relates to a method, apparatus, and packaging structure for in-situ packaging of fruits and vegetables using blown fiber spinning, addressing the current issues of efficiency and effectiveness in the use of nanofibers in fruit and vegetable packaging. This method selects carboxymethyl chitosan (CMCH) and polycaprolactone (PCL) as base materials, and uses SBS technology to directly deposit CMCH / PCL nanofibers layer by layer onto the surface of fruits and vegetables, forming a tightly adhered and stable fiber coating. The apparatus in this invention uses spiral-patterned conveyor rollers to simultaneously transport fruits and vegetables while performing blown spinning, achieving rapid and continuous in-situ packaging of fruits and vegetables. The in-situ packaging of this invention can be easily peeled off by hand, and it also serves as an excellent carrier for active substances, effectively inhibiting gray mold in fruits and vegetables. The in-situ packaging film forms a barrier on the surface of fruits and vegetables, reducing weight and hardness loss and delaying the ripening period after harvest.

The application relates to the environmental protection field and discloses Acidithiobacillus caldus suitable for Sb leaching, wherein the preservation number of the Acidithiobacillus caldus is CCTCC No: M2021710. The Acidithiobacillus caldus disclosed by the application can tolerate a high dose of FCC waste catalyst and has a remarkable removal effect on metals (especially Sb) in the FCC waste catalyst, and is suitable for biological leaching treatment of the FCC waste catalyst.

The application discloses an economical boron-containing stainless steel for hot neutron absorption, which comprises the following steps: (1) component design; (2) smelting molten steel according to the set component in a vacuum environment, applying electromagnetic stirring in a smelting process, and carrying out casting under a nitrogen protection atmosphere to obtain a casting blank; (3) homogenizing heat treatment of the casting blank for 240-720 min between Ac3 and the melting point of boride (T f ); air cooling to room temperature after discharging; (4) after removing casting defects, inclusions and slag foreign matters by grinding the casting blank after heat treatment, carrying out hot deformation and solid solution treatment; the hot deformation heating temperature and the solid solution treatment temperature are respectively T f 10-80 DEG C and 30-100 DEG C. The application is aimed at the characteristics of high cost and poor hot plasticity of the traditional boron-containing stainless steel for hot neutron absorption, reduces the use of precious metal Ni, improves the hardness of the matrix structure, enhances the deformation coordination of the matrix and boride, greatly improves the hot plasticity, and improves the hot deformation capacity of the material.

This invention discloses a pure magnesium and its purification method. The purification method specifically includes the following steps: (1) placing pure Mg into a crucible and placing it in a melting furnace, setting the temperature of the melting furnace to 650~670℃, and introducing CO. 2 and SF 6 The mixture is protected with a gas mixture. After the pure Mg melts, the temperature is raised to 690~720℃. The Mg-5Mn master alloy is added to the crucible. After it is completely melted, the melt is stirred to make the alloy composition uniform. (2) Remove the slag on the surface of the melt, add the refining agent to the melt, and stir it thoroughly. Let it stand for 30~50 min. (3) After the melt cools down, a high-purity magnesium ingot is obtained. This invention can effectively reduce the Fe impurity content in magnesium metal and reduce the inclusions in magnesium metal.

The invention relates to scintillator glass melted in a high-concentration hydrogen atmosphere and a preparation method and application thereof. The preparation method comprises the following steps: preparing raw materials and mixing the raw materials; charging and melting in a high-concentration hydrogen atmosphere: charging the powder into a high-purity alumina crucible, then putting the crucible into a hearth of a high-concentration hydrogen atmosphere furnace, vacuumizing, introducing mixed gas into the high-concentration hydrogen atmosphere furnace, controlling the total flow of the mixed gas, and melting in the high-concentration hydrogen atmosphere furnace, when the pressure in the hearth is in a micro-positive pressure state, opening a one-way stop valve, controlling tail gas emission, starting an atmosphere furnace heating system, and heating, preserving heat and founding for a certain time; clarifying and homogenizing; molding by casting and annealing; and processing to obtain the scintillator glass. According to the invention, efficient formation and uniform dispersion of Ce < 3 + > are guaranteed through sufficient reduction, and finally, the scintillator glass reaches better levels in transmittance, light yield, decay time and irradiation resistance.

This invention discloses a high-temperature resistant aluminum alloy wire suitable for arc-fused-wire additive manufacturing and its preparation method. The alloy wire comprises: manganese (Mn): 0.3-0.5%, copper (Cu): 5.3-5.8%, titanium (Ti): 0.15-0.35%, boron (B): 0.0005-0.006%, vanadium (V): 0.05-0.3%, zirconium (Zr): 0.05-0.2%, cadmium (Cd): 0-0.4%, silicon carbide (SiC): 0.1-0.4%, iron (Fe): ≤0.15%, silicon (Si): ≤0.06%, magnesium (Mg): ≤0.05%, zinc (Zn): ≤0.1%, other individual impurity elements: ≤0.05%, total other impurity elements: ≤0.15%, and the balance being aluminum (Al). The wire of this invention exhibits a uniform microstructure and moderate strength. The deposit formed by the arc-fused-wire additive manufacturing process possesses excellent strength, toughness, and other mechanical properties, with significantly improved heat resistance.

The application provides a method for removing impurity elements sulfur and oxygen in scrap steel electric furnace smelting, which comprises the following steps: electric furnace smelting under the protection of refining protective slag, wherein, during smelting, desulfurization is firstly performed, and then deoxidation is performed to obtain a product, the smelting temperature is 1673-1923K; the refining slag is selected from CaO-Al2O3-SiO2-MgO system slag, CaO in the refining slag is 58-65wt%, SiO2 is 8.5-11wt%, and CaO / SiO2 is 5.8-6.4. The application removes the impurity element sulfur in scrap steel through the designed refining slag, improves the purity of scrap steel through the combined use of special amount and special type of deoxidizer A and deoxidizer B, and provides guarantee for realizing the recycling of scrap steel; the impurity elements sulfur and oxygen in scrap steel are effectively removed, the requirements of producing high-quality steel with impurity elements are met, and the recycling of scrap steel resources is realized.

The present application relates to the technical field of solid polymer treatment, and particularly relates to a treatment method and a treatment system for volatile organic compounds in solid polymers, and a method for granulating solid polymers, which comprises: blowing a mixed gas containing gaseous light hydrocarbons and nitrogen through solid polymers containing volatile organic compounds to perform degassing. The treatment method is safe and efficient, can effectively reduce the content of volatile organic compounds in the solid polymers, and improves the environmental protection of solid polymer production and the quality of the solid polymers.

This invention belongs to the field of alloy forming technology and discloses a 2GPa-grade hydrogen embrittlement-resistant hot-formed steel containing NbVTiMo composite precipitates, its preparation method, and its applications. Through the synergistic proportioning of Nb, V, Ti, and Mo quaternary microalloys, a NbVTiMo composite nano-precipitate with high thermal stability and good interfacial bonding is formed. Compared with traditional single / low-element microalloy precipitates, this composite precipitate can act as a highly efficient hydrogen trap, significantly improving the hydrogen atom capture ability, effectively inhibiting hydrogen enrichment at grain boundaries and defects, improving the hydrogen embrittlement resistance of hot-formed steel, and reducing the risk of hydrogen-induced cracking and delayed fracture. Simultaneously, extending the coiling holding time promotes the full nucleation and dispersed distribution of the precipitates; shortening the austenitizing holding time avoids excessive dissolution and coarsening of the precipitates, maintaining the nanoscale of the precipitates, and achieving a fine and dense distribution of the precipitates, thus balancing hydrogen embrittlement resistance with the strength and toughness of the steel.

The application discloses a method for regulating dynamic recrystallization structure of austenitic stainless steel thick plate, which comprises the following steps: (1) diffusing annealing austenitic stainless steel thick slab at 1230-1260 DEG C to obtain homogenized slab; (2) after hot rolling of the homogenized slab, immediately performing large deformation hot rolling with single pass reduction of 25-50% to obtain rough rolling plate with surface temperature not lower than 1090 DEG C; if the thickness of the rough rolling plate reaches the required thickness, then water cooling to room temperature to obtain controlled hot rolling plate; otherwise, the next step is performed; (3) after rapidly cooling the rough rolling plate to below 920 DEG C, performing small deformation hot rolling with single pass reduction of 5-10%, total reduction is greater than or equal to 25%, and then water cooling to room temperature to obtain controlled hot rolling plate. The application adopts special 'high-temperature large reduction assisted low-temperature small reduction' process to regulate dynamic recrystallization behavior of the material to obtain uniformly distributed recrystallization grain structure, aiming at the problem that it is difficult to control the hot rolling structure of the austenitic stainless steel thick slab. The process has strong operability and can realize industrial application.

The invention discloses a method for preparing iron phosphate dihydrate of nanoparticles, which comprises the following steps of: diluting an iron phosphate complex solution by using water, reducing the concentration to 10% or lower of the original concentration, and carrying out solid-liquid separation to obtain the iron phosphate dihydrate nanoparticles. Nanoscale irregular iron phosphate dihydrate particles obtained by the preparation method provided by the invention are further subjected to high-temperature dehydration to form iron phosphate nanoparticles with crystal configuration. According to the method disclosed by the invention, the crystal aging process in the existing iron phosphate dihydrate preparation process is reduced, and the energy consumption is greatly reduced. Besides, nano-particle iron phosphate is mixed with large-particle-size iron phosphate particles, so that gaps among the particles can be reduced in a high compaction process, and the preparation of high-compaction lithium iron phosphate is realized. The preparation method disclosed by the invention is simple and controllable in reaction condition and can realize industrial application.

This invention belongs to the field of novel pollutant removal technology, disclosing a photocatalyst, its preparation method, and its application in antibiotic degradation. The invention first synthesizes a hydroxyl organic amine imine cage, and then prepares a flexible hydroxyl organic amine cationic cage with abundant N sites through a series of structural modifications. The N sites of the molecular cage are used to stabilize a photosensitive metal salt. By reducing the photosensitive metal salt, photosensitive metal nanoclusters are obtained and immobilized in the cavity or framework sites of the molecular cage to obtain a photocatalyst. Due to its small photosensitive metal nanoparticle size, fully exposed catalytic active sites, and good water solubility, this catalyst, utilizing the homogeneous catalyst principle, exhibits advantages such as high degradation efficiency, wide variety of antibiotics in wastewater, and good reusability, making it suitable for the purification treatment of biochemical wastewater in sewage treatment plants.

The application discloses a method for preparing hydrogen by using hydroquinone as raw material. The method comprises the following steps: uniformly mixing hydroquinone, a catalyst and water, and then heating and reacting under a non-active gas atmosphere to obtain a product containing hydrogen. The yield of hydrogen can reach 83.8 mmol. The hydroquinone is one of main pollutants in phenolic wastewater. The conversion of the hydroquinone into hydrogen by catalysis is beneficial to the resource utilization of the phenolic wastewater, and the process has high treatment efficiency and is environment-friendly. From the perspectives of waste utilization and clean energy development, the process has important academic significance and potential application prospect.

This invention belongs to the field of industrial waste resource utilization technology, and discloses a zero-discharge resource utilization method for polysilicon waste liquid. The method involves adding sodium hydroxide solution to chlorosilane waste liquid and reacting it, then obtaining sodium silicate solution through stepwise extraction with dilute alkali or one-step extraction with concentrated alkali. Furthermore, calcium carbide slag is calcined and slaked to obtain lime slurry. Then, the sodium silicate solution and lime solution are added to a reaction vessel according to a specific ratio and heated for reaction. The resulting mixture is filtered to obtain microporous calcium silicate material. The filtrate can be recycled as an alkaline solution for chlorosilane waste liquid. This invention effectively solves the problems of scarce resource utilization pathways and low utilization efficiency of chlorosilane waste liquid by synergistically utilizing chlorosilane waste liquid and calcium carbide slag solid waste. The resulting microporous calcium silicate material has excellent physicochemical properties. Simultaneously, the process is simple and the conditions are mild, achieving comprehensive utilization of industrial waste liquid and residue while also contributing to energy conservation, emission reduction, and source environmental protection.