8results about How to "Potential for industrialization" patented technology

The invention discloses Zn-I2 battery electrolyte as well as a preparation method and application thereof. The Zn-I2 battery electrolyte comprises an additive, zinc salt and a composite solvent, the additive contains halogen groups and polar functional groups; the halogen group is selected from one or more than two of F, Cl and Br. Through halogen groups in the additive, the iodine negative ion intermediate is effectively stabilized, so that a Zn-I2 battery is subjected to multi-electron transfer, and the specific capacity of the photoelectric storage integrated battery is improved; the polar functional groups in the additive can homogenize the electric field distribution on the Zn surface, reduce the nucleation overpotential corrosion current and hydrogen evolution current of Zn, change the diffusion path of Zn < 2 + > on an anode interface and improve the cycle stability of the Zn-I2 battery, the Zn-I2 battery with high specific capacity and long cycle life can be obtained by matching the two functional groups, and the Zn-I2 battery is coupled with a solar battery, so that the service life of the Zn-I2 battery is prolonged. Therefore, the overall conversion efficiency and the service life of the photoelectric storage integrated battery are improved.

The invention belongs to the field of chemical synthesis, and particularly relates to a method for catalytically synthesizing quaternary carbon indole compounds by DMAP. Specifically, in the presence of a catalyst DMAP, no transition metal catalyst or ligand is added, the 2-indolinone derivative shown in the formula C: # imgabs0 # is prepared from a compound shown in the formula A and a compound shown in the formula B, and the 2-indolinone derivative shown in the formula C: # imgabs0 # is obtained with good selectivity and yield, and R is phenyl or methyl.

This invention discloses a direct repair and regeneration method for waste lithium iron phosphate cathodes based on a two-electron lithiation reagent, comprising the following steps: (1) disassembling the recycled waste lithium iron phosphate battery after complete discharge, separating and collecting the cathode active material; (2) adding an aromatic ketone dilithium reagent to the cathode active material, stirring and reacting for 1-4 hours, then centrifuging, washing, and drying to obtain a lithified regenerated lithium iron phosphate cathode; wherein: the molar ratio of lithium in the aromatic ketone dilithium reagent to the molar ratio of lithium missing in the cathode active material is ≥1; the aromatic ketone dilithium reagent is composed of aromatic ketone dilithium and an organic solvent; the molar ratio of aromatic ketone molecules to lithium in the aromatic ketone dilithium is 1:2. This invention can achieve twice the lithiation efficiency with the same amount of aromatic chemical reagent consumption, which is beneficial to reducing the material input in the repair and regeneration process. Moreover, the electrochemical performance of the regenerated layered lithium iron phosphate cathode material obtained by this invention is comparable to that of commercial lithium iron phosphate cathodes.

The invention discloses a method for resource treatment of nitric acid tin stripping waste liquid. The method comprises the following steps: adding sulfuric acid and ferric sulfate to the nitric acid tin stripping waste liquid, then distilling to form a light component nitric acid and a heavy component, performing solid-liquid separation on the heavy component to form a supernatant solution and a precipitate; the supernatant solution is used to recover elemental copper, tin mud and sodium sulfate; the precipitate is used to recover elemental copper, tin mud and ammonium sulfate crystals; in the nitric acid distillation process of the invention, sulfuric acid + ferric sulfate are added to form an iron-ammonium alum-like precipitate, thereby realizing the removal of ammonia nitrogen in the distillation process, thereby realizing the safety and controllability of the nitric acid distillation process.

This application relates to the chemical field of medicine, specifically to tolebrutinib salts and their crystal forms, their preparation methods, their pharmaceutical compositions, and their uses. Tolebrutinib hydrochloride and its crystal form provided in this application have at least one advantage: good stability, low hygroscopicity, solubility meeting medicinal requirements, uniform particle size distribution, good morphology, good flowability, good compressibility, good crystallinity, good storage stability, avoiding phase transformation during drug development and storage, simple and reliable preparation method, and great development value. The tolebrutinib maleate and its crystal form of this application have at least one advantage: good stability, uniform particle size distribution, good flowability, solubility meeting pharmaceutical requirements, good storage stability, avoiding phase transformation during drug development and storage, and simple and reliable preparation method.

The invention discloses a compound and application thereof in synthesis of oxidized resveratrol derivatives in the technical field of organic chemistry, according to a method, (E)-2-(2, 4-bis (benzyloxy) styryl)-4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborane and a halogenated benzene compound are sequentially subjected to a coupling reaction and a debenzylation protection reaction, and purification is performed to obtain the oxidized resveratrol derivatives. According to the present invention, by selecting different halogenated benzene compounds, a variety of oxidized resveratrol derivatives with different structures are synthesized, the individual development of the synthesis route of each product is avoided, the synthesis route of (E)-2-(2, 4-bis (benzyloxy) styryl)-4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborane is simple, the product is easily available, the structure is simple, the industrial potential is provided, and in addition, the method can be used in the field of industrial production. Through innovative reaction steps and condition optimization, further improvement of reaction selectivity and efficiency is realized in synthesis of the oxidized resveratrol derivative, meanwhile, product stability is guaranteed, the oxidized resveratrol derivative is promoted to be converted into a mainstream functional raw material, and large-scale production requirements can be met.

This invention discloses a hydrogen sensing thin film and a room temperature sensor, belonging to the field of semiconductor gas-sensitive materials and sensor technology. The hydrogen sensing thin film is composed of tungsten oxide (WO3) and highly dispersed Pt-Pd-Ni-Co-Cu-Fe hexa-element high-entropy nano-alloy particles. The sensor includes a SiO2 / Si substrate, interdigitated electrodes disposed on the substrate, and a sensitive thin film covering the surfaces of the electrodes and the substrate. The fabrication method of this invention employs a three-target synergistic magnetron sputtering process, utilizing a high-power pulsed magnetron sputtering (HiPIMS) power supply to drive a pure W target and a strongly magnetic Fe-Co-Ni alloy target respectively, while simultaneously using a DC power supply to drive a non-magnetic Pt-Pd-Cu alloy target. By effectively controlling the oxygen content within the thin film through oxygen flow rate regulation and reactive magnetron sputtering, and based on the phase formation process driven by differences in oxyphilic behavior and high mixing entropy, the phase type and size distribution within the film are controlled to form a controllable tungsten oxide + nano-high-entropy alloy dual-phase structure. Furthermore, a gradient coupling interface with oxygen-rich vacancies and strong metal-support interactions is constructed between the two phases, significantly reducing the potential barrier for hydrogen atom spillover. This hydrogen sensing thin film achieves high sensitivity operation at room temperature, shortened response time, and exhibits excellent resistance to CO poisoning and long-term cycling stability.

This invention belongs to the field of cosmetic raw material preparation technology, specifically relating to a method for decolorizing Xinjiang erythromycin, its products, and applications. The method includes: raw material pretreatment: pulverizing Xinjiang erythromycin and processing it using high-pressure instantaneous explosion technology; extraction: extracting the pretreated material with an ethanol-water solution, and obtaining a crude extract of Xinjiang erythromycin after solid-liquid separation; activated carbon decolorization: adding ethanol to the crude extract and mixing evenly, then adding activated carbon for decolorization treatment, followed by solid-liquid separation after decolorization; resin purification: loading the supernatant obtained after decolorization onto a resin column, performing gradient elution, collecting the ethanol eluent rich in phenolic acids, concentrating, and drying. This invention achieves an excellent balance between efficient decolorization and retention of highly active ingredients. It can strongly adsorb and remove dark pigments while significantly reducing the adsorption loss of the target phenolic acids.