Abstract: The present invention relates to the technical field of functional materials, and in particular to an amorphous metal oxide hollow multi-shell material and a preparation method therefor and an application thereof. The method includes the following steps: 1) performing a heating reaction on a carbon source aqueous solution, filtering, washing, and drying to obtain a carbon sphere template; 2) dispersing the carbon sphere template obtained in step 1) in a first metal salt solution, heating, adsorbing, and drying to obtain a first solid precursor; 3) dispersing the solid precursor obtained in step 2) in a second metal salt solution again, adsorbing, and drying to obtain a second solid precursor; and 4) calcinating the second solid precursor obtained in step 3) to obtain the amorphous metal oxide hollow multi-shell material.

Abstract: The present invention discloses a cyclopeptide glass and a pharmaceutical composition glass containing a cyclopeptide. The cyclopeptide glass of the present invention can simultaneously exert efficacy and function as a drug adjuvant. Compared with crystals and traditional drug dosage forms or adjuvants, the cyclopeptide glass effectively increases a drug dissolution rate, improves drug bioavailability, and may be widely used in the fields of drug delivery and sustained release for resistance to tumors, resistance to viruses/bacteria, blood sugar control, immune regulation, neuromodulation, etc.

Abstract: This disclosure discloses an extraction column for metal separation in an acid leaching solution of laterite nickel ore, and an extraction process thereof. The extraction column includes an extraction column tube body and a gas distribution device; an interior of the extraction column tube body is provided with an accommodating cavity for containing a continuous phase and a dispersed phase, the continuous phase and the dispersed phase are in countercurrent contact in the accommodating cavity; and the extraction column tube body is connected with the gas distribution device to make the gas distribution device pass gas into the accommodating cavity. The gas distribution device is used to control a pipe diameter of a gas outlet of the gas distribution device in a suitable range. Using turbulent effect of bubbles floating in a liquid phase, collisions and shears of the dispersed phase form dispersed phase droplets with suitable sizes.

Abstract: Disclosed are a measurement system for micro-mixing and a measurement method thereof. The measurement system comprises a mixing device, a light enhancement unit, an observation unit, an image acquisition unit, a display device and a tracer injection device; the light enhancement unit comprises a light-emitting device, a light-focusing device and a reflecting device; the observation unit comprises an observation window; the image acquisition unit comprises a distortion-free lens and an image acquisition device which are connected in sequence, and a central axis of the distortion-free lens is in alignment with a central axis of the observation window. The measurement method is performed in the measurement system provided by the present application. In the present application, the brightness of visual field is improved, the light interference on target image is shielded off, the process of micro-mixing can be observed in real time, and thereby the micro-mixing efficiency can be evaluated.

Abstract: A method for enriching carbon dioxide and hydrogen by water-gas shift coupling of blast furnace gas is disclosed in the present application, belonging to the technical field of flue gas resource utilization, where the method includes: purifying the blast furnace gas by a dry purification method, followed by heating and mixing with water vapor, allowing for water vapor shift coupling reaction under an action of a catalyst to obtain a mixed gas of carbon dioxide and hydrogen; adsorbing the mixed gas of carbon dioxide and hydrogen with a carbon dioxide adsorbent and desorbing to obtain carbon dioxide; introducing a gas not adsorbed by the carbon dioxide adsorbent into a molecular sieve adsorbent to remove impurities, then obtaining a hydrogen. Blast furnace gas is used as raw material, and hydrogen is provided for subsequent hydrogen smelting while realizing carbon enrichment in the blast furnace process.

Abstract: Disclosed in the present invention are a device system and method having sintering flue gas CO catalytic heat exchange and medium-and-low-temperature SCR denitration connected in series. In the device system, a CO catalytic heat storage and exchange device is arranged to completely replace an original heat exchanger arranged after a raw desulfurized flue gas pipe. The method comprises respectively carrying out first CO catalytic conversion and second CO catalytic conversion on sintering flue gas and denitrated flue gas by means of the CO catalytic heat storage and exchange device, thereby increasing CO conversion efficiency and reducing overall resistance of the system. In addition, the present invention takes both CO pollution control and carbon emission reduction into consideration and thus has good economic benefits and a good application prospect.

Abstract: Provided are a method of controllably reducing an oxygen content, a method of preparing titanium metal powder, and a method of preparing Ti6Al4V alloy powder. The method of controllably reducing an oxygen content can accurately control the removal amount of oxygen in titanium oxide or vanadium aluminum alloy by introducing a calcium-containing substance into titanium source and/or vanadium source and using aluminum powder in combination as a reductant, and a simple wet treatment is performed on a reduced material obtained after reduction treatment to achieve separation of a reduction by-product and a first reduction powder to obtain high-purity titanium oxide or high-purity vanadium aluminum alloy, thereby providing theoretical and practical bases for preparing a low-valent titanium oxide having a specific oxygen content, a titanium metal powder having a low oxygen content, a vanadium aluminum alloy having a low oxygen content, and a Ti6Al4V alloy having a low oxygen content.

Abstract: Provided are a device for photovoltaic power generation and a method therefor.

Abstract: Disclosed are a polycarbonate and a preparation method therefor and an application thereof. The polycarbonate comprises at least one of structural units selected from a structural unit represented by formula (I) and a structural unit represented by formula (II). The polycarbonate provided by the present application has a high refractive index, and the obtained polycarbonate has a refractive index of 1.673-1.794, which can satisfy performance requirements of polycarbonate as an optical resin in optical components.

Abstract: Disclosed are a hydrogenation catalyst, a preparation method therefor and use thereof. The hydrogenation catalyst includes a carrier and an active component supported on the carrier, wherein the carrier is nitrogen-doped carbon, and the active component is a bimetal selected from Ru—Fe, Ru—Co, Ru—Ni or Ru—Cu.

Abstract: Provided are a system for preparing isotope-labeled carbon dioxide and a method therefor. The preparation method comprises: vaporizing heavy-oxygen water and mixing the heavy-oxygen water with carbon dioxide, and subjecting the heavy-oxygen water and the carbon dioxide to an oxygen-exchange reaction by catalyzing them with a catalytic material, and performing gas-liquid separation after the reaction to obtain the isotope-labeled carbon dioxide. The system provided by the present application has a simple structure, and by adopting the heavy-oxygen water which has a wide source and low cost as an oxygen isotope source and utilizing the oxygen-exchange reaction, the replacement of oxygen-16 in normal carbon dioxide by oxygen-18 in heavy-oxygen water is achieved to obtain the oxygen-18 labeled carbon dioxide product.

Abstract: Provided are a device for hydrogen production from water photolysis and a method therefor, which belongs to the field of photocatalytic solar hydrogen production. The device for hydrogen production from water photolysis comprises: a catalytic reaction unit for water photolysis comprising a light-transmitting surface, and a light condenser component with a light-concentrating surface facing the light-transmitting surface of the catalytic reaction unit for water photolysis; the light condenser component comprises a solar concentrating cone and a reflector for reflecting and concentrating sunlight into the solar concentrating cone.

Abstract: A method for clean recovery of palladium is provided, including the following steps: mixing a palladium-containing material, a Ce4+-containing acidic solution, and an additive, subjecting a resulting mixture to leaching to obtain a Pd2+-containing solution, and subjecting the Pd2+-containing solution to electrolysis to obtain palladium. In the method, the palladium-containing material is subjected to solution leaching with Ce4+ as an oxidative leaching agent and a chlorine-containing additive. After leaching is complete, a Ce4+ and Pd2+-containing leaching liquor is subjected to electrolysis to realize the green regeneration of Ce4+ and palladium. The method of the present disclosure does not lead to the generation of NOx and waste liquid. The present disclosure can significantly reduce the environmental impact and production cost and has excellent economic benefits and application prospects.

Abstract: Disclosed is an external circulating slurry reactive crystallizer, including a riser, a degassing zone and a downcomer. A lower end of the riser is communicated with a gas inlet pipe, a liquid inlet pipe and a solid feeding pipe, while an upper end of the riser is communicated with a lower end of the degassing zone. An upper end of the downcomer is integrally fixed to a sidewall of the degassing zone. At least one hydrocyclone is arranged at a lower end of the downcomer. The hydrocyclone is provided with an overflow port at an upper end thereof and an underflow port and a valve at a lower end thereof. The overflow port is communicated with the riser. The crystallizer can simultaneously realize reaction, crystallization and separation for continuous production with low cost, regulating and controlling the particle size distribution and morphology of crystals.

Abstract: The present invention discloses an external loop slurry reactor, comprising a gas-liquid integrated distributor, a riser, a degassing zone, a solid-liquid separation circulation unit, and a storage tank. When the reactor works, reactants are injected into the riser through the gas-liquid integrated distributor; the slurry mixes and flows upwards to the degassing zone at the top for gas removal, and a large number of bubbles are removed. The slurry with catalyst particles then enters a downcomer and flows downwards. The slurry flows into a first-stage hydrocyclone and a multi-stage hydrocyclone in sequence for solid-liquid separation. The diameter of the first-stage hydrocyclone is larger than that of the multi-stage hydrocyclone. The separated solid particles flow back into the riser to continue to participate in the reaction.

Abstract: A cracking process for a reaction distillation of chlorosilane slurry includes feeding a chlorosilane slurry into a phase separator, drying a solid phase, feeding a chlorosilane polymer into a plate distillation column, returning kettle materials of the plate distillation column, and dividing a material produced from a top of the column. The process adopts an ionic liquid catalyst, which is environmentally friendly and reusable. The cracking and distillation of chlorosilane polymer are carried out simultaneously to shorten the time and increase the utilization rate of raw materials, which can reduce energy consumption and save costs and facilitate industrial production. A plate column is used as a distillation column, in which the two phases of the gas and liquid are sufficiently contacted. Therefore, the transfer of mass and heat is good, the production capacity is good, and the tower is not easily blocked, thereby making it easy to clean.

Abstract: The present application belongs to the field of life health, and discloses a sugar chain and a composition thereof, and use in the prevention and/or treatment of coronavirus infection. The sugar chain contains any one or more of Neu5Ac?2-N1Gal building blocks, and/or any one or more of xFuc-N1Gal-N1(xFuc-N1)GlcNAc building blocks, at the non-reducing end, where, x=0 or 1, and N1=1, 2, 3, 4 or 6. A glycosidic bond formed between Neu5Ac and Gal is an ?2 glycosidic bond. In the xFuc-N1Gal-N1(xFuc-N1)GlcNAc building blocks, a glycosidic bond formed between any two adjacent monosaccharides is an ?1 or ?1 glycosidic bond. The specific building block contained at the non-reducing end of the sugar chain blocks the binding of the virus to the host, thereby blocking virus invasion and infection of the respiratory tract/lung, and achieving the specific prevention and treatment.

Abstract: A method for extracting palladium includes: (1) mixing a palladium-containing material with nitric acid and an alkali metal ion-containing catalyst to obtain a mixed solution, heating the mixed solution, and removing a resulting residue to obtain a palladium-containing leaching liquor; and (2) subjecting the palladium-containing leaching liquor obtained in step (1) to separative extraction to obtain metallic palladium or at least one palladium-containing product, and reusing a residual solution for step (1) in a subsequent extraction. The alkali metal ion-containing catalyst of the present disclosure can leach palladium at a higher rate than that when pure nitric acid of the same concentration is used and does not volatilize, such that the recycling of a mother liquor can be realized. The method involves simple operations, has low production costs, greatly shortens the palladium extraction time, does not lead to secondary pollution, and meets the requirements of environmental protection.

Abstract: The present disclosure relates to an immunologically active peptide-biliverdin conjugate (I), a preparation method therefor and an application thereof in cancer diagnosis, and/or tumor immunotherapy, and/or tumor “photothermal immunotherapy” (tumor photothermal therapy combined with immunotherapy). The conjugate to which the present disclosure relates not only may stimulate an organism to generate a tumor-immune effect, but also may relieve and/or eliminate tumor inflammation, remodel a tumor inflammatory microenvironment and achieve photothermal cancer immunodiagnosis and immunotherapy. The conjugate to which the present disclosure relates has high biocompatibility, good stability and an extended half-life. The conjugate is prepared from an immunologically active peptide and biliverdin by means of chemical synthesis.

Abstract: Disclosed is a trolley sealing device for a flue gas circulation system of a sintering machine, including a cover body covering a top surface of a sintering machine trolley. A top end of the cover body is provided with communication assemblies, and the communication assemblies communicate an inner cavity of the cover body with an outside environment; two ends of the inner cavity of the cover body are fixedly connected with vertical adjusting sections respectively, and a sealing device is arranged between the vertical adjusting sections and two ends of the top surface of the sintering machine trolley; and the cover body includes a plurality of frameworks; the plurality of frameworks are arranged above the sintering machine trolley, the communication assemblies are arranged on the frameworks, and skins are fixedly connected with the frameworks; and thermal insulation layers are arranged outside the skins.