5results about How to "Avoid excessive oxidation" patented technology

This invention discloses a craft beer flavor enhancement process using oak barrel micro-oxygen aging, belonging to the field of craft beer brewing technology. This process achieves the targeted transformation and accumulation of flavor compounds in craft beer through oak barrel pretreatment, precise control of the micro-oxygen environment, and optimization of aging process parameters. First, the oak barrel undergoes a combined pretreatment of toasting, carbonization, and maceration. Then, the fermented base beer is poured into the pretreated oak barrel, and a stable oxygen concentration is maintained within the barrel through a micro-oxygen control system, aging under suitable temperature conditions. Craft beer brewed using this process exhibits a significantly increased content of characteristic flavor compounds and an effective reduction in the content of off-flavor substances such as acetaldehyde. The beer combines the rich aroma of oak with the refreshing taste of beer, solving the problems of single flavor and prominent off-flavors in traditional aging processes, and significantly improving the quality and market competitiveness of craft beer.

This invention relates to the field of aluminum foil production technology, specifically a method for treating aluminum powder on the surface of rolled aluminum foil. This method effectively removes aluminum powder adhering to the aluminum foil surface by combining physical and chemical treatments, improving the purity and safety of the aluminum foil. It is applicable to industries such as electronics, electrical appliances, and food packaging. The treatment effect of aluminum powder can be further optimized by controlling static electricity elimination during the rolling process, selecting the cleaning solution, and using controlled atmosphere heat treatment conditions. Furthermore, the introduction of quality inspection ensures that there is no residual aluminum powder on the surface of the treated aluminum foil, improving product reliability and safety. This invention provides a new solution for quality control in the aluminum foil production process.

This invention relates to a method for enhancing the stirring intensity during vanadium extraction, belonging to the field of steel pretreatment. The method includes the following three steps: first, vanadium-containing molten iron is added to a converter; then, a top-and-bottom blowing process is used for smelting; coolant is added according to the composition and temperature at the smelting endpoint; finally, semi-steel is removed from the lance at the smelting endpoint. The top-blown gas is an oxygen-nitrogen mixture, and the total flow rate of the oxygen-nitrogen mixture is 31,000~35,000 Nm³. 3 / h; the oxygen consumption per ton of iron, the top blowing lance position, and the nitrogen consumption per ton of iron are controlled in segments according to the blowing period; the bottom blowing gas is nitrogen, and the nitrogen supply intensity is controlled in segments according to the blowing period. This invention significantly enhances the stirring intensity of the molten pool without significantly increasing the temperature rise rate through the synergistic effect of the high-flow-rate oxygen-nitrogen mixed gas from the top and the variable-flow-rate nitrogen from the bottom, thereby shortening the mixing time and enhancing the slag-metal reaction, further increasing the vanadium oxidation amount and further reducing the TFe content in the vanadium slag.

This invention belongs to the field of pharmaceutical chemical synthesis technology and relates to a method for the catalytic oxidation of acetate tetraenes to synthesize dihydroxy compounds. The method uses acetate tetraenes as a raw material, acetone as a solvent, Ru-X-Y as a catalyst, and sodium hypochlorite as an oxidant. Under alkaline conditions, catalytic oxidation yields the product dihydroxy compound. In Ru-X-Y, X is Pt or Pd, and Y is any one of Fe, Mn, and Cu. This invention uses solid Ru-X-Y as a catalyst, utilizing the synergistic activation and polarization properties of metals. It only requires sodium hypochlorite, which has relatively weak oxidizing power, as an oxidant to catalytically oxidize acetate tetraenes to the target product dihydroxy compound, effectively avoiding the use of strong oxidants such as potassium permanganate. This not only prevents over-oxidation and improves product yield and quality but also increases production efficiency, resulting in significant economic and social benefits.

The invention provides a lithium battery silicon-based negative electrode binder as well as a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. According to the invention, polyacrylic acid is taken as a matrix, zinc ions and nickel ions are introduced to form a dynamic coordination bond network, and 3, 4-ethylenedioxythiophene (i.e., EDOT) monomers are subjected to in-situ polymerization to generate a poly (3, 4-ethylenedioxythiophene) (i.e., PEDOT) conductive polymer, so that the water-based composite binder with dynamic self-repairing capability and a conductive ion-conductive electron bicontinuous network structure is constructed; the technical problems that a traditional binder is insufficient in binding force in a silicon negative electrode, poor in flexibility, free of conductivity and difficult to adapt to large-volume change of a silicon material are solved. The negative electrode binder can be used in the fields of high-energy-density lithium ion batteries, fast-charging batteries, flexible or miniature electronic equipment and the like, and has great development potential in the fields of high-end power batteries, energy storage systems and the like.