21results about How to "Suppressor enrichment" patented technology

The invention provides lactobacillus reuteri HNU872 and application of the lactobacillus reuteri HNU872 in preparation of intestinal inflammation related products. The invention discloses how the Lactobacillus reuteri HNU872 effectively alleviates the phenotype of DSS-induced mouse enteritis. The invention also discloses a preparation method of the Lactobacillus reuteri HNU872. Research results show that the Lactobacillus reuteri HNU872 can significantly relieve weight loss caused by enteritis, improve colon length, significantly improve the level of anti-inflammatory cytokines in serum and reduce the concentration of pro-inflammatory cytokines. In addition, the expression of the intestinal tight junction protein ZO-1 is obviously promoted. The lactobacillus reuteri HNU872 can regulate diversity and structure of intestinal microbiota of mice, inhibit enrichment of pathogenic bacteria and relieve inflammatory response. According to the invention, the action mechanism of the lactobacillus reuteri HNU872 in improving enteritis is clarified, and a solid scientific basis is provided for developing a microbial product based on probiotics as an alternative treatment strategy for ulcerative colitis.

The invention discloses a synthesis method of a non-silicon defoaming agent and application of the non-silicon defoaming agent in the field of scandium extraction in hydrometallurgy. The defoaming agent is synthesized by a component A, a component B and a component C through a two-step reaction, the synthesis method comprises the following specific synthesis steps: 1) carrying out esterification reaction on an amino acid substance A and a fatty alcohol substance B to generate an amino ester substance D; and 2) carrying out substitution reaction on the amino ester substance D and a triazine compound C to obtain the non-silicon defoaming agent. The defoaming agent disclosed by the invention is wide in application range, can be applied to links such as a laterite-nickel ore hydrometallurgy front-end scandium extraction method and an MHP hydrometallurgy scandium impurity removal process, is added as an auxiliary agent in the extraction process, and is used for reducing the surface tension of liquid, preventing the formation and enrichment of a third-phase substance and reducing the occurrence of an emulsification phenomenon; the process stability and the output quality are improved, and the method has important industrial application value.

The invention provides an electrolyte for improving the interface stability of a four-electron aqueous zinc-iodine battery, and belongs to the technical field of zinc-iodine battery electrolyte additives, the electrolyte comprises N, N-dihydroxyethyl glycine, zinc sulfate, an additive and water; in the electrolyte, the concentration of the N, N-dihydroxyethyl glycine is 0.5 + / -0.2 mol / L; the molar ratio of the additive to the zinc sulfate is 1: 3; the additive comprises any one of methyl triethyl ammonium chloride, betaine hydrochloride and triethylamine hydrobromide. The electrolyte can enhance the interface stability of the electrode electrolyte, improve the cycling stability and electrochemical performance of the aqueous zinc-iodine battery, inhibit side reactions, and improve the safety and reliability of the battery. The invention also provides a high-capacity aqueous zinc-iodine battery.

The invention relates to the technical field of agricultural information and seed and seedling cultivation, and discloses a peanut planting method for relieving continuous cropping obstacles of peanuts. The method comprises the following steps: constructing initial digital twins of a land parcel, and synchronously constructing a disease-resistant peanut variety screening and seedling pretreatment system; historical continuous cropping information, soil physicochemical and microorganism data, meteorological time sequence data and seedling cultivation parameters are fused, the system is driven to evolve into operation state digital twins, and seedling-soil-environment collaborative simulation is achieved. Evaluating the continuous cropping obstacle risk and the seedling adaptability based on the twinborn body, and generating a comprehensive diagnosis report containing a nutrient imbalance index, pathogenic bacteria abundance prediction, a root exudates cumulative effect and a seedling disease-resistant adaptation coefficient; according to the method, differentiated seed and seedling optimization, soil improvement and cultivation strategies are implemented, and management measures are dynamically optimized through real-time data feedback in a growth cycle. Through cooperative driving of digital twinning and seed and seedling cultivation, source prevention, control and intervention of continuous cropping obstacles are achieved.

This invention discloses a method for microwave-catalyzed dehydrogenation of naphtha to produce aromatics, specifically comprising the following steps: Step 1, oxidizing and etching the surfaces of four different diameter carbon fibers to obtain four modified carbon fibers; Step 2, preparing four platinum-carbon fibers of different diameters based on the four modified carbon fibers obtained in Step 1; Step 3, preparing a gradient-pore structured platinum-carbon fiber paper based on the four different diameter platinum-carbon fibers obtained in Step 2; Step 4, using the gradient-pore structured platinum-carbon fiber paper obtained in Step 3 to catalyze the dehydrogenation of naphtha to obtain aromatics. This invention uses microwave-assisted catalysis to lower the reaction temperature, achieving localized catalytic heating to reduce side reactions, and also achieves high dehydrogenation efficiency.

This invention discloses a non-stoichiometric sodium iron manganese phosphate cathode material with high phase purity. This sodium iron manganese phosphate cathode material has the following general chemical formula: zMPO4-Na x Fe y Mn a‑y (PO4)2(P2O7) / C, where 3.7≤x≤4.3, 1≤y≤2, 2.92≤a≤3, 0<z≤0.1, and the molar ratio of Na to transition metals Fe and Mn (TM) (Na / TM) is between 1.23 and 1.45, with M being Sc, Y, Ho, or Tb. Through non-stoichiometric design, controllable concentrations of sodium vacancies and interstitial Na are actively introduced into the crystal lattice. + Optimized Na + Transport; then by introducing phosphate MPO4 with zircon-type structure as a diffusion promoter, Mn enrichment is avoided and the formation of NMP impurity phase is reduced, and the phase purity of the material is ≥93%; the synergistic effect of the two greatly improves the capacity and rate performance of the material.

This application provides a barrel plating roller and a barrel plating apparatus, relating to the field of semiconductor packaging technology. The barrel plating roller includes a roller frame and a cylinder wall disposed on the roller frame. The cylinder wall forms an inner cavity for accommodating the packaged product. The cylinder wall includes conductive panels and adsorption panels alternately spaced along the circumference of the barrel plating roller. The conductive panels are electrically connected to the negative terminal of a power source, and the adsorption panels are electrically insulated from the conductive panels. At least a portion of the adsorption panels facing the inner cavity is made of an ion exchange material for adsorbing anions from the surface of the packaged product. This barrel plating roller, through the circumferentially alternating arrangement of the conductive and adsorption panels, can significantly suppress the continuous local accumulation of harmful anions on the surface of the packaged product, reduce the probability of anions invading the interior of the packaged product along the micro-gap between the molding compound and the metal structure, and improve the electrical performance stability, moisture and heat resistance reliability, and long-term service reliability of the semiconductor packaged product; it can also improve the uniformity and density of the plating layer.

This invention discloses a method for controlling bacterial wilt and soil antibiotic resistance genes based on a bio-liquid-microorganism-silicon synergy, belonging to the fields of agricultural microbial technology and soil remediation technology. The method includes the following steps: S1, using straw from fields frequently affected by bacterial wilt as raw material, a renewable antibacterial bio-liquid rich in phenolic and ketone compounds is prepared; S2, Bacillus subtilis is subjected to stress-adaptive screening and continuous domestication culture to obtain domesticated strains; S3, the domesticated strains are expanded to prepare a biocontrol agent with enhanced antagonistic ability and environmental tolerance; S4, under pot conditions, the optimal combination of silicon fertilizer, antibacterial bio-liquid, and stress-adaptive biocontrol agent is screened to clarify its role in reducing the spread of antibiotic resistance genes in the soil-plant continuum; S5, under field conditions, silicon fertilizer, antibacterial bio-liquid, and stress-adaptive biocontrol agent are synergistically applied to inhibit soil-borne diseases and simultaneously reduce the spread of antibiotic resistance genes in the soil-plant continuum. This invention has the advantages of stable and sustained control effect and high ecological safety. It can effectively protect the healthy growth of crops and reduce the risk of the spread of resistance genes.

The invention relates to the field of petrifaction, and discloses a green refining method of crude caprolactam, which comprises the following steps: S1, mixing crude caprolactam with a crystallization solvent, carrying out primary crystallization, carrying out solvent removal, heavy component removal and light component removal on a primary mother solution obtained by separation, mixing the recovered solvent and caprolactam with crude caprolactam, and recrystallizing; or removing the solvent from the primary mother liquor, recovering, concentrating, performing secondary crystallization, and separating to obtain secondary crystals and secondary mother liquor; carrying out solvent removal, heavy component removal and light component removal on the secondary mother liquor, mixing the recycled caprolactam with the primary mother liquor for secondary crystallization, separating to obtain secondary recycled crystals, mixing the secondary recycled crystals with secondary crystals and crude caprolactam, and then carrying out primary crystallization again; and S2, adsorption refining. According to the method disclosed by the invention, efficient and green refining of the crude caprolactam can be realized, the finally obtained caprolactam has high purity, low chroma and high yield, and the method has obvious advantages in production of high-end caprolactam products with extremely high chroma requirements.

The application discloses a kind of photocatalytic nanocomposite and its preparation method and application, belong to nanocomposite technical field, first synthesis CuInS2 quantum dot powder, a layer of carbon is covered on the surface of CuInS2 quantum dot powder, then amino is introduced by silane coupling agent modification, then modified carbon composite CuInS2 quantum dot powder is loaded on tubular carbon nitride powder formed.The tubular structure of tubular carbon nitride powder is conducive to CuInS2 quantum dot dispersion on its surface or inside, so that the active site of CuInS2 quantum dot powder is fully exposed, the band gap energy of CuInS2 quantum dot powder is about 1.53eV, when being irradiated, electron and hole pair can be generated, can promote the separation of photoinduced electron and hole to improve the activity of catalyst, and the dense carbon layer on CuInS2 quantum dot powder can form physical barrier to prevent peroxide from directly contacting with sulfur ion.

The invention discloses a salt-light alkali-reducing cultivation method for cotton in saline-alkali soil, and relates to the technical field of cotton planting. Comprising the following steps: deeply ploughing a cotton field, applying a base fertilizer, and irrigating to make entropy to obtain a to-be-sown cotton field; cotton sowing is carried out by adopting a direct-seeding plastic film mulching method and a machine-harvested cotton planting mode, the sowing depth is controlled to be 2.5-3.5 cm, the soil covering width is 5-7 cm, the soil covering thickness is 0.5-1 cm, the one-grain rate is larger than or equal to 95%, and the hole rate is smaller than or equal to 3%; after-sowing management is conducted in the cotton seedling stage, timely intertillage is conducted, and meanwhile leaf fertilizer is sprayed according to the cotton cotyledon stage to the two-leaf stage, the 3-4-leaf stage and the 4-leaf stage; performing water and fertilizer management in a cotton bud stage, performing intertillage, and performing foliage dressing at the same time; in the cotton flowering and boll-forming period, water dripping fertilizer is conducted according to the entropy condition, topping is conducted in good time, meanwhile, fertilizer is applied to regulate and control the plant type, and fertilizer is applied according to the premature senility trend and the snooze growth vigor; disease, pest and weed control is carried out in the sowing period. The cultivation method is suitable for saline-alkaline cotton fields in Xinjiang and is an effective means for increasing the cotton yield and improving soil conditions.

The invention discloses a microbial preparation for passivating soil heavy metal cadmium and improving crop yield and quality and application of the microbial preparation, and belongs to the technical field of microbial preparations. The rhizopus arrhizus WG01 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on September 9, 2024, the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.41501. The microbial solid preparation is prepared by fermenting two strains of rhizopus arrhizus WG01 and burkholderia by taking wheat bran and charcoal as carrier auxiliary materials, and then compounding with calcium superphosphate in proportion. When the microbial preparation is applied to soil, heavy metal cadmium in the soil can be passivated through the effects of adsorption, precipitation and the like, meanwhile, the content of organic matter and rapidly available phosphorus in the soil is increased through the addition of wheat bran, biochar, inorganic phosphorus and the like and the phosphorus dissolving effect of microorganisms, and yield increase and quality improvement of crops are achieved. The microbial solid preparation is convenient to use, green and pollution-free, and has the advantages of passivating soil heavy metals, improving soil fertility, increasing crop yield and the like.

This invention discloses an all-solid-waste alkali-activated cementitious material and its preparation method, relating to the field of building materials technology. The cementitious material, by weight, comprises the following components: 300-400 parts blast furnace slag, 150-350 parts glass powder, 30-200 parts red brick powder, 40-70 parts desulfurized gypsum, 160-260 parts alkali activator, 10-30 parts sodium sulfate, 30-40 parts sodium tripolyphosphate, 0.4-5 parts silane coupling agent, and 200-400 parts water. This invention utilizes various industrial wastes such as blast furnace slag, glass powder, red brick powder, and desulfurized gypsum to prepare an all-solid-waste alkali-activated cementitious material. It possesses excellent mechanical properties, outstanding durability, and strong environmental adaptability, improving the utilization rate of industrial solid waste, reducing the use of traditional cementitious materials such as cement, lowering resource dependence and production costs, and promoting the low-carbon transformation of building materials.

The invention discloses an organic fertilizer based on vinegar lees and a preparation method thereof, and belongs to the technical field of organic fertilizer preparation. The organic fertilizer based on vinegar lees disclosed by the invention comprises the following raw materials in parts by weight: 20-30 parts of vinegar lees, 10-15 parts of livestock and poultry feces, 3-5 parts of feces fermentation agent, 10-20 parts of modified montmorillonite, 10-20 parts of modified zeolite and 5-10 parts of humic acid. The organic fertilizer based on vinegar lees prepared by the invention has an organic matter content of ≥72wt%, a fecal coliform count of ≤6 / g, and a total nutrient mass fraction of ≥16%, which can well enhance soil fertility; the invention effectively passivates heavy metals in the soil through modification of montmorillonite and zeolite, addition of humic acid, and the coordinated use of the three, and inhibits the enrichment of heavy metals in the soil by crops.

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 invention provides a C10 recovery device capable of generating steam, and belongs to the technical field of petroleum refining, the C10 recovery device comprises a first feed preheater, a second feed preheater, a C10 cutting tower, a tower top steam generator and a tower top hot water heat exchanger, enabling the raw oil to enter a C10 cutting tower at a preset temperature for separation treatment to form a gaseous light component; the tower top steam generator is connected between the tower top of the C10 cutting tower and the tower top hot water heat exchanger and is used for carrying out secondary condensation treatment on the gaseous light components, low-pressure steam and liquid light components subjected to primary condensation are generated after the light components are subjected to condensation treatment through the tower top steam generator, and the low-pressure steam and the liquid light components are subjected to secondary condensation treatment through the tower top hot water heat exchanger. And condensing the liquid light component through a tower top hot water heat exchanger to generate hot water for heat tracing and a product of C10 and below, wherein the product of C10 and below is output as a reforming raw material in a hot discharge form. According to the invention, the recovery of C10 and below products can be realized.

The invention provides a composite diffusant for grain boundary diffusion of a neodymium-iron-boron magnet, a grain boundary diffusion method of the neodymium-iron-boron magnet and the neodymium-iron-boron magnet. The composite diffusant comprises 20 wt%-50 wt% of a diffusion precursor, 50 wt%-80 wt% of a diffusion alloy and 0.5 wt%-5 wt% of an additive. The diffusion precursor comprises one or more of magnesium oxide and zinc oxide; the diffusion alloy comprises an RAlCu alloy, wherein R represents one or more of La, Ce, Pr, Nd, Dy and Tb; the additive comprises an Al70Cu30 alloy and a first thermoplastic binder, and the mass fraction of the Al70Cu30 alloy is greater than or equal to 40% based on the total mass of the additive. The composite diffusant can reduce the use amount of heavy rare earth during grain boundary diffusion of the neodymium-iron-boron magnet, the diffusion efficiency is improved, the diffusion process is simplified, and the magnet performance is improved.

The present application relates to the technical field of metal material surface treatment, and particularly relates to a 780MPa-grade hot-dip galvanized dual-phase steel coating bonding force strengthening method, which comprises the following steps: soaking a base material in a plating solution to perform three-stage temperature rising continuous annealing, pre-oxidation, hydrogen reduction, two-stage temperature lowering, post-plating cooling, and obtaining the strengthened hot-dip galvanized dual-phase steel coating; the base material composition is as follows: C<=0.18%, Mn 1.75-2%, Si 0.35-0.45%, P 0.02-0.035%, Cr 0.35-0.45wt%, Nb 0.015-0.03%, Als 0.02-0.06%, Y 0.01-0.014%, and Nb / Y is 1.1-3, according to 100% mass percentage. The scheme solves the problems of uneven structure, poor interface bonding force, poor continuity of the inhibition layer, unstable corrosion resistance, and poor surface of the existing hot-dip galvanized DP780 steel coating.

The invention discloses a water-soluble fertilizer for inhibiting absorption and accumulation of all-metal cadmium of rice grain weight and a preparation method of the water-soluble fertilizer. The water-soluble fertilizer is prepared from the following components in parts by weight: 20 to 25 parts of biochemical fulvic acid, 35 to 40 parts of compound amino acid, 10 to 15 parts of zinc sulfate monohydrate, 3 to 6 parts of ferric sodium ethylene diamine tetraacetate, 0.6 to 0.9 part of manganese sodium ethylene diamine tetraacetate, 0.3 to 0.6 part of boric acid, 0.4 to 0.8 part of pH (Potential of Hydrogen) regulator, 0.7 to 1.2 parts of chelating agent, 0.8 to 1.2 parts of surfactant and 80 to 100 parts of water. The preparation method of the water-soluble fertilizer comprises the following steps: S1, adding biochemical fulvic acid and compound amino acid into water, stirring and dissolving to obtain mother liquor A, S2, adding a pH regulator into the mother liquor A, stirring and dissolving to obtain mother liquor B, s3, respectively adding a chelating agent, zinc sulfate monohydrate, ferric sodium ethylene diamine tetraacetate, manganese sodium ethylene diamine tetraacetate and boric acid into the mother liquor B, stirring and dissolving to obtain mother liquor C; and S4, adding a surfactant into the mother liquor C, stirring and dissolving to obtain the water-soluble fertilizer.

The present invention discloses a method for preparing 3-hydroxypropionaldehyde by hydrating acrolein. The raw materials are pretreated, water is adsorbed by resin as a hydration raw material, and the reaction process conditions are controlled and a heating program is designed to make a certain concentration of acrolein aqueous solution at a low temperature of 20-75°C and a volume space velocity of 0.3-5h ‑1 , the reaction is carried out at a linear speed of 0.01-15m / h. Under this condition, the reaction can effectively inhibit the enrichment of metal ions, reduce side reactions, and prevent catalyst agglomeration. At the same time, by controlling the reaction process, the reaction efficiency can be guaranteed, the stability of the catalyst can be improved, and the catalyst life can be extended. It is an efficient reaction process with industrial prospects.

The invention provides corn straw-agricultural film co-pyrolysis biomass charcoal as well as a preparation method and application thereof, and belongs to the technical field of agricultural waste resource utilization. The method comprises the following steps: mixing corn straw and an agricultural film according to a mass ratio of 10: (0.1-0.5), crushing, and co-pyrolyzing to obtain the corn straw-agricultural film co-pyrolyzed biomass charcoal. According to the invention, agricultural film plastic residues and corn crop straw wastes in agricultural production are co-processed in a co-pyrolysis manner to obtain the corn straw-agricultural film co-pyrolysis biomass charcoal, and the corn straw-agricultural film co-pyrolysis biomass charcoal can improve the physicochemical properties, fertility condition and microbial environment of soil and improve the yield and quality of crops; effective heavy metals in soil are reduced, enrichment of heavy metals in soil by crops is inhibited, and absorption of heavy metals in polluted soil by crops is reduced. The corn straw-agricultural film co-pyrolysis biomass charcoal can be used as a soil conditioner and a soil heavy metal passivator to improve the health of a soil-crop system.