7results about How to "Efficient production capacity" patented technology

The invention discloses a method for efficiently co-producing benzoquinone and cyclohexanone based on electrochemical oxidation / reduction of phenol, which adopts an acid-base mixed electrochemical electrolytic tank, the anode electrolyte is alkaline electrolyte, the cathode electrolyte is acidic electrolyte, the anode electrode is nickel foam loaded with nickel sulfide-nickel oxide composite nanosheets, and the cathode electrode is nickel foam loaded with nickel sulfide-nickel oxide composite nanosheets. The cathode electrode is a palladium-nickel-boron nanoparticle alloy with nitrogen-doped porous carbon as a carrier, and the anode electrolyte and the cathode electrolyte are separated by a bipolar membrane; the phenol is added into the anolyte and the catholyte, so that the phenol is electrochemically oxidized by the anode to generate an additional product benzoquinone with high economic value, and meanwhile, the phenol is catalyzed by the cathode to be reduced to generate an additional product cyclohexanone with high economic value. The whole system only needs to consume acid and alkali, the method has the advantages of being good in environmental protection effect and considerable in capacity, and the electrochemical electrolytic tank is good in stability, simple in preparation method, low in cost and easy to achieve large-scale production and has the potential to be applied to large-scale treatment of acid and alkali wastewater containing phenol in industry.

The invention discloses a method for synthesizing a gem-difluoroolefin compound through conversion of alkane under catalysis of acridine. The gem-difluoroolefin is a multifunctional fluorine-containing synthon and is a core unit structure for improving performance in the fields of medicines, pesticides and materials. According to the method, an alpha-trifluoroolefin compound and various alkanes are taken as raw materials, and gem-difluoroallylation is directly realized under the conditions of acridine, alkali and illumination. The method has the advantages of simple preparation operation and wide substrate applicability, and contains various electron-withdrawing or electron-donating groups and various cyclic heterocyclic or non-heterocyclic alkanes. The method is mild in reaction condition, relatively high in yield and simple in subsequent treatment, and is a green chemical synthesis method with a relatively good application prospect.

The invention discloses a clutch pressure plate detection tool, and belongs to the technical field of automobile part detection equipment, and the clutch pressure plate detection tool comprises a workbench, the upper end of the workbench is fixedly connected with a detection table, the upper end of the detection table is provided with a first detection member in an embedded manner, and the center end of the detection table is provided with a transmission member in an embedded manner. The four end corners of the transmission part are slidably connected with second detection parts used for clutch pressure plate plane error detection, the inner top end of the workbench is provided with a telescopic air cylinder, and the lower end of the telescopic air cylinder is provided with a third detection part used for clutch pressure plate positioning hole position detection. And the plane error value of the surface of the pressure plate can be recorded in a targeted manner, so that subsequent personnel can correspondingly collect the pressure plate, and whether the data value of the productivity machine needs to be adjusted or not can be judged according to multiple groups of data, so that the output of productivity is further increased, and the qualification rate of the pressure plate is ensured.

A composite double well fire flooding method for low permeability difference oil layer belongs to the technical field of artificial auxiliary viscosity reduction technology in tertiary oil recovery process. The composite double well low permeability reservoir development process is as follows: two wells are drilled at all well sites in the oil production core area, one is a composite oil production well, and the other is a fire flooding air injection well. All the drilled wells at the outer edge of the reservoir are single oil production wells. The fire flooding air injection well in the well pattern supplements the high production layer and is ignited by physical and chemical methods. Any oil production well in the well pattern cannot supplement the fire flooding layer. The present application has the following characteristics: the composite double well fire flooding technology absorbs the advantages of steam huff and puff development, steam flooding, fire flooding and other development methods, has low cost, good effect, reduces labor intensity and saves human resources.

The invention discloses a porphyrinyl covalent organic framework, a porphyrinyl covalent organic framework / solanesol composite material and a preparation method and application of the porphyrinyl covalent organic framework / solanesol composite material, the porphyrinyl covalent organic framework is prepared by reacting 5, 10, 15, 20-tetra-(4-aminophenyl) porphyrin with 2, 5-bis (allyloxy) terephthalaldehyde, and the porphyrinyl covalent organic framework / solanesol composite bactericidal material is prepared from 5, 10, 15, 20-tetra-(4-aminophenyl) porphyrin and 2, 5-bis (allyloxy) terephthalaldehyde. The covalent organic framework material is constructed through Schiff base reaction of 1, 3, 5, 20-tetra-(4-aminophenyl) porphyrin serving as one structural unit and 2, 5-bis (allyloxy) terephthalaldehyde serving as the other structural unit, and the chemical sterilization effect is further enhanced by adsorbing solanesol. A novel sterilization material integrating photo-thermal / photodynamic / chemical sterilization capabilities is constructed. The photo-thermal / photodynamic / chemical sterilization integrated material disclosed by the invention has a good photo-thermal heating effect, excellent active oxygen production capacity and a synergistic chemical sterilization effect, has good stability and biological safety, and has huge potential in the aspect of bacterial infection treatment.

This invention discloses a method for synthesizing 4,6-bis(trifluoromethyl)-1,3,5-triazabicyclo[3.1.0]hex-2-ene compounds. Using nitrile compounds and diacaridine as raw materials, the method utilizes photo-induced decomposition of diacaridine to efficiently construct the target azabicyclo skeleton. This method features mild reaction conditions and a simple synthetic route. Furthermore, it exhibits broad functional tolerance, mild reaction conditions, high yield, and simple post-processing, making it a promising green chemical synthesis method. The novel skeleton can serve as a novel bioisostere, overcoming the bottlenecks of limited existing skeleton structures and high synthetic difficulty, providing technical support for drug molecule optimization and new drug development.

This invention discloses a wafer polishing method and a polished wafer. The polishing method sequentially includes a first polishing, a second polishing, a third polishing, a fourth polishing, and a fifth polishing. The first, second, third, and fourth polishing steps polish the metal film on the wafer surface. After the fourth polishing, all the metal film on the wafer surface is polished. The polished thickness satisfies the following conditions: T0 = 2 × T1 - T2 - 0.2; T1 = 0.7 × T0 - 0.2; T2 = 4 × T3 - 0.4; where T0 is the initial thickness of the metal film on the wafer surface, T1 is the remaining metal film thickness after the first polishing, T2 is the remaining metal film thickness after the second polishing, and T3 is the remaining metal film thickness after the third polishing. This invention employs a five-step polishing process, where the first four steps polish the metal film on the wafer surface to a specific thickness, ultimately improving polishing efficiency and simultaneously improving surface defects on the wafer.