25 results about "Hexafluorophosphate" patented technology

A method for generating / synthesising a metal hexafluorophosphate is disclosed which comprises dissolving ammonium hexafluorophosphate in tetrahydrofuran (THF) solvent, and flowing the resulting dissol

The application relates to the technical field of semiconductors, in particular to a three-junction composite laminated solar cell and a manufacturing method thereof. The three-junction composite laminated solar cell comprises, in sequence along the direction of incident light, an N electrode, a GaInP top cell, a first tunnel junction, a GaAs middle cell, a second tunnel junction, an OCA optical adhesive bonding layer, a PET substrate, a transparent front electrode, a hole transport layer, a composite perovskite light-absorbing layer, an electron transport layer, a BCP buffer layer and a P electrode. The composite perovskite light-absorbing layer is prepared from (FA 0.7 MA 0.3 )(Pb 0.6 Sn 0.4 )I3, and 1-vinyl-3-ethyl imidazole hexafluorophosphate is added as an additive. The manufacturing method provided by the application can realize reliable combination of electrical and optical properties between a GaAs / perovskite composite laminated cell, and the prepared three-junction composite laminated solar cell has higher light absorption efficiency, reliability and stability.

The present invention provides: a novel additive containing an ionic liquid that can be used for a composition for forming a cathode catalyst layer of a polymer electrolyte fuel cell; a novel composition for forming a cathode catalyst; and a novel cathode catalyst layer formed using the same.　The present invention relates to a composition for forming a cathode catalyst layer of a polymer electrolyte fuel cell, the composition containing an ionic liquid represented by formula (1). In the formula, X represents an atomic group containing a nitrogen atom or a phosphorus atom; Y represents a hydrogen atom, a carboxy group, or a sulfonic acid group; Z-represents a hydrogen sulfate anion, a trifluoromethanesulfonate anion, a bis(trifluoromethylsulfonyl)imide anion, a halogen anion, a tetrafluoroborate anion, a hexafluorophosphate anion, a bis(fluorosulfonyl)imide anion, or a nonafluorobutanesulfonate anion; and n represents an integer of 2-4.

The application relates to the technical field of semiconductors, in particular to a three-junction composite laminated solar cell and a manufacturing method thereof. The three-junction composite laminated solar cell comprises, in sequence along the direction of incident light, an N electrode, a GaInP top cell, a first tunnel junction, a GaAs middle cell, a second tunnel junction, an OCA optical adhesive bonding layer, a PET substrate, a transparent front electrode, a hole transport layer, a composite perovskite light-absorbing layer, an electron transport layer, a BCP buffer layer and a P electrode. The preparation raw material of the composite perovskite light-absorbing layer is (FA 0.7 MA 0.3 )(Pb 0.6 Sn 0.4 )I3, and 1-vinyl-3-ethyl imidazole hexafluorophosphate is added as an additive. The manufacturing method provided by the application can realize reliable combination of electrical and optical properties between a gallium arsenide / perovskite cell composite laminated cell, and the prepared three-junction composite laminated solar cell has higher light absorption efficiency, reliability and stability.

The present invention provides a method for synthesizing 4-bromo-N-(2,6-dioxopiperidin-3-yl)-2-fluorobenzamide, which relates to the field of organic chemical synthesis technology and includes a one-step reaction. Specifically, it involves using 4-bromo-2-fluorobenzoic acid and 3-aminopiperidin-2,6-dione hydrochloride as raw materials, N,N-dimethylformamide as solvent, and adding triethylamine and 2-(7-azabenzotriazole)-N,N,N',N'-tetramethylurea hexafluorophosphate to obtain the target product 4-bromo-N-(2,6-dioxopiperidin-3-yl)-2-fluorobenzamide. The synthesis method of the present invention has a short process route, inexpensive and readily available raw materials and excipients, high reactivity, simple operation, easy control, and a high yield of the target product, which is convenient for industrial scale-up.

The application discloses a hydrogel, a sensor and a preparation method and application thereof. The hydrogel is PEDOT:PSS / EMIM-Cl / Fc + PF6 ‑ The hydrogel comprises a poly 3,4-ethylenedioxythiophene: polystyrene sulfonate conductive polymer, 1-ethyl-3-methyl imidazole chloride and ferrocene hexafluorophosphate. The application can accurately control the inherent potential of the gel interface by doping 1-ethyl-3-methyl imidazole chloride and ferrocene hexafluorophosphate in the hydrogel, and realizes potential type analysis of various neurochemical molecules in the brain.

To overcome the technical problem that existing methods for preparing LiPF6 using PF5 inevitably introduce HF and SO3, increasing the free acid content of LiPF6, this invention provides a method for preparing hexafluorophosphate, comprising the following steps: uniformly mixing a first organic solvent with an alkali metal fluoride salt, passing phosphorus pentafluoride through the mixture to react and obtain crude hexafluorophosphate; mixing the crude hexafluorophosphate with an amine-containing polymer to remove acidic impurities; and then performing post-treatment to obtain the final hexafluorophosphate. The method for preparing hexafluorophosphate provided in this application uses an amine-containing polymer to remove acidic impurities from the crude hexafluorophosphate, improving the purity of the hexafluorophosphate; the amine-containing polymer can desorb and release acidic substances such as HF and SO3, allowing for reuse and reducing production costs.

This invention relates to the technical field of hexafluorophosphate synthesis, and in particular to a method and system for synthesizing liquid hexafluorophosphate. The method for synthesizing liquid hexafluorophosphate is a novel process route that uses phosphorus trichloride as the initial raw material and sequentially undergoes oxidation, fluorination, deep fluorination, and in-situ solvent-captured phosphorus pentafluoride reaction with alkali metal fluorides to obtain liquid hexafluorophosphate. The entire technical route has the advantages of being controllable, low-cost, green, highly safe, and low in impurities.

This invention discloses a continuous synthesis method and apparatus for liquid lithium hexafluorophosphate, comprising the following steps: S1, continuously adding lithium fluoride and an organic solvent into a mixing vessel to obtain lithium fluoride mother liquor, and continuously introducing a phosphorus pentafluoride mixed gas into a primary reactor; S2, continuously conveying the lithium fluoride mother liquor to the primary reactor for reaction with the phosphorus pentafluoride mixed gas; the primary reactor conveys the reacted material to a secondary reactor, while simultaneously conveying the unreacted phosphorus pentafluoride mixed gas to the secondary reactor for further reaction; S3, the secondary reactor transfers the unreacted gas out of the reaction system; the material obtained from the secondary reactor is continuously collected into a settling tank; S4, the top of the settling tank collects the synthesis liquid without lithium fluoride solids into a product receiving tank. This invention solves the synthesis efficiency bottleneck of traditional batch reactors and effectively improves the production capacity of liquid lithium hexafluorophosphate per unit time.

The present invention provides a method for synthesizing 4-bromo-N-(2,6-dioxopiperidin-3-yl)-2-fluorobenzamide, which relates to the field of organic chemical synthesis technology and includes a one-step reaction. Specifically, it involves using 4-bromo-2-fluorobenzoic acid and 3-aminopiperidin-2,6-dione hydrochloride as raw materials, N,N-dimethylformamide as solvent, and adding triethylamine and 2-(7-azabenzotriazole)-N,N,N',N'-tetramethylurea hexafluorophosphate to obtain the target product 4-bromo-N-(2,6-dioxopiperidin-3-yl)-2-fluorobenzamide. The synthesis method of the present invention has a short process route, inexpensive and readily available raw materials and excipients, high reactivity, simple operation, easy control, and a high yield of the target product, which is convenient for industrial scale-up.

This invention discloses a method for purifying etoricoxib impurities, comprising the following steps: Step (1) preparing a tetrahydrofuran reaction solution of etoricoxib; Step (2) washing the tetrahydrofuran reaction solution of etoricoxib with an inorganic alkali solution containing 1wt%-10wt% for 1-3 times, and after the last alkali wash, adding an appropriate amount of water and cooling to crystallize, finally obtaining the purified etoricoxib product. The method of this invention is simple and ingenious. It utilizes the difference that compound B (2-chloro-1,3-bis(dimethylamino)trimethylene hexafluorophosphate) has good solubility in alkaline water, while etoricoxib is almost insoluble in alkaline water, and develops a method to remove impurity compound B from etoricoxib by washing with alkaline water. The operation process for removing impurity compound B is simple, short in cycle and low in cost, which greatly reduces the preparation cost of qualified etoricoxib preparation raw materials, and ultimately allows patients to obtain low-cost and safe drugs.

The present application relates to a kind of wide band gap perovskite film and its preparation method and application, belong to perovskite technical field.The preparation method of the present application includes the following steps: S1, perovskite precursor is dissolved in organic solvent, to obtain perovskite precursor solution;S2, ionic liquid is dissolved in perovskite precursor solution, to obtain modified perovskite precursor solution;S3, modified perovskite precursor solution is coated on the surface of conductive substrate, and the wide band gap perovskite film is obtained by heat annealing.The multifunctional ionic liquid 1-benzyl-3-methyl imidazole hexafluorophosphate is introduced into the wide band gap perovskite precursor solution, the crystallization kinetics of the film is effectively controlled, the generation of residual lead iodide impurity phase is inhibited, the perovskite phase and interface defects are passivated, and the defect state density is reduced, so that the high-quality wide band gap perovskite film with high phase purity, strong crystallinity and low defect density is prepared.

The application discloses a preparation method of a bile acid-norfloxacin compound, which comprises the following steps: reacting bile acid and norfloxacin in the presence of 2-(7-azobenzotriazole)-N,N,N',N'-tetramethyluronium hexafluorophosphate and diisopropylethylamine in THF solvent at 10-30 DEG C for 12-30 h, and then carrying out post-treatment to obtain the bile acid-norfloxacin compound. The bile acid-norfloxacin compound is obtained by condensation reaction between the carboxyl group of the bile acid and the piperazine group of the norfloxacin, and the compound structure is combined with the bile acid and the norfloxacin. The antibacterial activity of the norfloxacin is obviously improved, the norfloxacin has better inhibition effect on Escherichia coli, Helicobacter pylori and the like, and also has better inhibition effect on Pseudomonas aeruginosa, Staphylococcus aureus and Pneumococcus, and meanwhile, the preparation operation process is simple.

This invention relates to the field of rubber materials technology, and proposes an oil-resistant hydraulic brake hose and its preparation method. An oil-resistant hydraulic brake hose comprises, from the inside out, an inner rubber layer, a first reinforcing layer, a middle rubber layer, a second reinforcing layer, and an outer rubber layer. The inner rubber layer comprises the following components by weight: 70-80 parts nitrile rubber, 2-3 parts silane coupling agent, 4-6 parts zinc oxide, 2-3 parts stearic acid, 1-2 parts flow aid, 5-10 parts tackifier, 10-20 parts plasticizer, 0.8-1.5 parts sulfur, 3-5 parts accelerator, 60-75 parts carbon black, 10-15 parts silica, and 8-15 parts composite pyrophyllite. The composite pyrophyllite is obtained by modifying pyrophyllite with octyltrimethoxysilane and then compounding it with 1-butyl-3-methylimidazolium hexafluorophosphate. This technical solution solves the problem of poor oil resistance of the inner rubber layer in existing hydraulic brake hoses.

A cylindrical battery cell, a battery and an electric device. The cylindrical battery cell includes an electrolyte solution, an electrode assembly and a casing, where the casing accommodates the electrolyte solution and the electrode assembly. The electrolyte solution contains an electrolyte salt, and the electrolyte salt includes a hexafluorophosphate. The casing includes a casing body and a film layer, the film layer is at least arranged on a surface of the casing body facing the electrode assembly, and the matrix element in the film layer is the nickel element. The reliability and cycle performance of the cylindrical battery cell during use in the embodiments are improved.

A cylindrical battery cell, a battery and an electric device. The cylindrical battery cell includes an electrolyte solution, an electrode assembly and a casing, where the casing accommodates the electrolyte solution and the electrode assembly. The electrolyte solution contains an electrolyte salt, and the electrolyte salt includes a hexafluorophosphate. The casing includes a casing body and a film layer, the film layer is at least arranged on a surface of the casing body facing the electrode assembly, and the matrix element in the film layer is the nickel element. The reliability and cycle performance of the cylindrical battery cell during use in the embodiments are improved.

This invention relates to a photosensitive resin composition comprising: an epoxy resin, a cationic photoinitiator, an ultraviolet absorber; additives and a solvent; wherein the cationic photoinitiator is at least one selected from the group consisting of thio-p-phenylene bis(4,4'-dimethyldiphenylsulfonium)bis(tetra(pentafluorophenyl)borate), thio-p-phenylene bis(4,4'-dimethyldiphenylsulfonium)hexafluorophosphate, triarylsulfonium bis(tetra(pentafluorophenyl)borate), triarylsulfonium hexafluorophosphate, and 4-{[4-(diphenylsulfonium)phenyl]thioalkyl}phenyldiphenylsulfonium hexafluorophosphate; and also relates to dry film photoresist using the cationic photoinitiator, a method for preparing the same, a photoresist pattern, and a display device.

The application discloses a detection method of related substances in ganiret acetate, and belongs to the technical field of drug analysis. The detection method comprises the following steps: weighing ganiret acetate sample, dissolving the ganiret acetate sample to prepare a test sample solution; measuring the test sample solution, diluting the test sample solution to prepare a control solution, and respectively injecting the test sample solution and the control solution into a liquid chromatograph; adopting octadecylsilane bonded silica gel as chromatographic column filler, adopting an ultraviolet detector for detection, selecting hexafluorophosphate buffer as mobile phase A and acetonitrile as mobile phase B for gradient elution, recording a chromatogram, and calculating the content of related substances according to a self-control method. The application can effectively detect process impurities Des-Tyr 5 -Ganiret acetate and Des-D-Ala 10 -Ganiret acetate, the method has strong specificity, good repeatability and high accuracy, and can effectively control the product quality of ganiret acetate.

The application relates to the technical field of battery separators, and discloses a PE-PBI composite battery separator as well as a preparation method and application thereof. The PE-PBI composite battery separator comprises the following raw materials in parts by weight: 58-70 parts of a separator base material, 5-10 parts of an ionic liquid, 5-10 parts of a carbonate, and 3-6 parts of lithium bis-trifluoromethanesulfonimide; the separator base material comprises polyethylene and polybenzimidazole; the ionic liquid comprises 1-butyl-3-methylimidazolium hexafluorophosphate and N-methyl-N-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide; and the carbonate comprises ethylene carbonate and / or vinylene carbonate. The application effectively improves the ionic conductivity of the separator through the synergistic cooperation between the two specific ionic liquids, ethylene carbonate and LiTFSI, and the two ionic liquids [BMIM][PF6] and [P 13 ][TFSI].

This invention discloses a high-insulation, thick-film, solvent-free insulating and anti-corrosion coating and its preparation method. The coating consists of component A and component B. Component A includes low molecular weight bisphenol A epoxy resin, alicyclic epoxy resin, reactive diluent, amino-terminated polyether, modified titanium dioxide-coated basalt fiber, titanate-modified glass flakes, insulating and thermally conductive filler, anti-rust pigment, inert filler, 1-ethyl-3-methylimidazolium hexafluorophosphate, thixotropic agent, wetting and dispersing agent, defoamer, and silane coupling agent. Component B includes phenolic amine curing agent, polyamide curing agent, accelerator, and silane coupling agent. This invention constructs a three-dimensional barrier structure of fibrous network + sheet-like flakes in the coating, combined with the interfacial polarization regulation effect of ionic liquid and dual coupling agent, and the reinforcing effect of other fillers and additives, which significantly improves the electrical insulation of the coating while maintaining excellent mechanical and corrosion resistance properties, meeting the application requirements in the electronic and electrical fields.

The utility model “METHOD FOR PRODUCING 4(PYRIDINE-2-YLOXY)-3-(P-TOLYL)-1,2,4THIADIAZOLE-5(4H)-ONE” relates to the field of fine organic synthesis and can be used to obtain 4-(pyridin-2-yloxy)3-(p-tolyl)-1,2,4-thiadiazol-5(4H)-one. The method of preparation is based on a two-stage synthesis involving the reaction of N'-hydroxy-4-methylbenzimidamide with pyridine-N-oxide in the presence of bromotris(pyrrolidino)phosphonium hexafluorophosphate (PyBroP) and an organic base in an acetonitrile medium at room temperature to form 4-methyl-N'-(pyridin-2-yloxy)benzimidamide, followed by cyclization by reaction with (chlorocarbonyl)sulfenyl chloride in the presence of sodium carbonate in a dichloromethane medium at room temperature, isolation of the target product by filtration, washing and drying.

The present application relates to a kind of methods for capturing ketone volatile organic compounds in N2 environment using imidazole ionic liquid.The method uses COSMO-RS model to screen ionic liquid absorbent, initially selects 1-octyl-3-methyl imidazole hexafluorophosphate as absorbent in solubility, selectivity, cost advantage, and then through absorption experiment, it is proved that the mass fraction of two kinds of ketone volatile organic compounds after absorption is less than 0.02%, and the purity of recycled ionic liquid absorbent is greater than 99.9%.Absorption-regeneration cycle experiment shows that the ionic liquid has good cycle stability and repeatable performance.The present application has high absorption efficiency, good regeneration performance, green and environmentally friendly operation process, can realize the efficient capture and resource recovery of ketone volatile organic compounds, and has good industrial application.