8 results about "Ethyl oxide" patented technology

The invention discloses a nickel pre-plating additive suitable for a high area and an electroplating method. The invention discloses a cleaning agent, which comprises the following five main functional additives: 10-20 wt% of a surfactant, 10-20 wt% of a brightening agent, 4-8 wt% of a leveling agent, 10-15 wt% of a softening agent, 8-12 wt% of a surface cleaning agent, 1-3 wt% of a wetting agent and the balance of five main functional additives. Wherein the brightener mainly comprises one or a mixture of more of pyridinium propyl sulfobetaine (PPS), a sodium allysulfonate aqueous solution (ALS), trichloroacetaldehyde hydrate (TCA), 1, 4-butynediol (BOZ), pyridinium hydroxy propyl sulfobetaine (PPS-OH) and butynediol ethyl oxide (BEO). The leveling machine mainly comprises one or a mixture of more of pyridinium sulfobetaine (PPS), propargyl alcohol ethyl oxide (PME), propargyl alcohol propoxy compound (PAP), butynediol propoxy compound (BMP), N, N-diethyl propargyl amine formate (PABS) and pyridinium hydroxy propyl sulfobetaine (PPS-OH). The softening agent mainly comprises one or a mixture of more of a sodium allysulfonate aqueous solution (ALS), sodium allysulfonate (SAS), N, N-diethyl propynylamine (DEP) and propinyl-3-sulfopropyl ether sodium salt (POPS). The surface cleaning agent mainly comprises one or a mixture of more of sodium gluconate, sodium benzoate, sodium salicylate, sodium acetate, sodium hypophosphite and 2, 5-dimethyl-3-hexyne-2, 5-diol (HD-M). The wetting agent mainly comprises one or a mixture of more of 2-ethylhexyl sodium sulfate (TC-EHS), sodium dihexyl sulfosuccinate and sodium mono (2-ethylhexyl) sulfate. The corresponding substances are classified according to the characteristics of the additive, and the dispersing capacity of the plating solution is remarkably enhanced by utilizing mutual synergism and combined action of different substances and matching with the formula of the Watt plating solution. Meanwhile, matching is carried out according to the characteristics of the nickel pre-plated steel strip, and the nickel pre-plated steel strip has the advantages of being suitable for a high-current-density interval, adjustable in coating glossiness, good in coating ductility, good in compactness, few in pinhole, few in blue point and the like.

This invention discloses a photolithographically patternable lithium-ion electrolyte, its preparation method, and its applications. The electrolyte is a photolithographically curable lithium-ion electrolyte composition, comprising, by mass percentage, LiTFSI, polyethylene glycol methyl ether methacrylate, bisphenol A ethyl oxide dimethacrylate, fluoroethylene carbonate, succinic acid, 2-hydroxy-2-methyl-1-phenyl-1-propanone (HMPP), 3-(isobutyryloxy)propyltrimethoxysilane, and 2-methyl-2-acrylate-2-hydroxyethyl. This invention also discloses a stepwise preparation method for this composition and its applications in micro-energy storage and ion-electronic devices such as micro solid-state batteries, ion-controlled transistors, and neuromorphic devices. This electrolyte can be patterned at the micro-nano scale using standard photolithography processes, exhibiting excellent lithium-ion conductivity, electrochemical stability, mechanical flexibility, and optical transparency. It also shows good interface compatibility with gold electrodes / silicon wafers, requiring no additional etching or transfer processes. This solves the technical problems of existing solid-state electrolytes being difficult to fabricate at the micro-nano scale and incompatible with microelectronic processes, and has broad application prospects in the fields of micro-nano fabrication and micro-devices.

The application discloses a liquid-phase high-entropy carbide-silicon carbide composite ceramic precursor, a composite ceramic and a preparation method. The precursor comprises at least four of Ti, Zr, Hf, V, Nb, Ta, Mo and W elements, carbon element and silicon element, and the mole number of each metal element accounts for 5-35% of the total metal mole number of the precursor. The liquid-phase precursor contains a solvent selected from one or more of toluene, xylene, tetrahydrofuran, ethylene glycol dimethyl ether and ethylene glycol diethyl ether, and the change rate of the viscosity of the precursor is not greater than 10% after being stored at 25 DEG C for 3 months. The precursor can form the high-entropy carbide-silicon carbide composite ceramic with the metal element, the silicon element and the carbon element uniformly distributed in the nanometer size after being cracked.

A process for converting an ethanol feed stream to ethylene, the process comprising passing portions of the ethanol feed stream to two reactors in parallel and then passing the combined product to a third reactor that operates at a higher temperature to prevent the formation of ethers, such as diethyl ether.

The invention discloses a preparation method and application of a low-temperature-resistant and high-voltage-resistant ether-based electrolyte, and belongs to the technical field of lithium metal battery electrolytes. The invention aims to solve the problems that the traditional commercial ester-based electrolyte is poor in adaptability to a lithium metal battery and poor in weather resistance. The low-temperature-resistant and high-voltage-resistant ether-based electrolyte comprises lithium bis (fluorosulfonyl) imide, lithium difluoro (oxalato) borate, ethylene glycol diethyl ether and 1, 1, 2, 2-tetrafluoroethyl 2, 2, 3, 3-tetrafluoropropyl ether. The low-temperature-resistant and high-voltage-resistant ether-based electrolyte is applied to a lithium metal battery. The problems that a traditional commercial ester-based electrolyte is poor in adaptability to a lithium metal battery and poor in weather resistance are solved, the circulation rate stability of the ether-based electrolyte in the high-voltage and wide-temperature environment is obviously improved, and the ether-based electrolyte is suitable for the fields of electric automobiles, high-power energy storage equipment and the like which have strict requirements on the fast charging performance.

The invention discloses a tail gas safety and environmental protection system and method for a sodium ethoxide production device, including a sulfuric acid metering tank, a circulation pump, a spray tower, an induced draft fan and a flame arrester, wherein the upper end of the spray tower is provided with a primary spray head and a secondary spray head distributed in parallel, a sulfuric acid metering tank is provided on one side of the spray tower, a circulation pump is connected on one side of the sulfuric acid metering tank, a flame arrester is provided on the top of the spray tower, the circulation pump is connected with a circulation pipe, and the circulation pipe is respectively connected to the primary spray head and the secondary spray head, the induced draft fan is connected with two activated carbon boxes, the activated carbon boxes are respectively connected with an intermediate tank, a reactor and vacuum tail gas, a flame detector is provided inside the upper end of the flame arrester, and the circulation pump and the induced draft fan are both connected with a control station. The present invention adjusts the pH of the accumulated liquid in the spray tower by arranging a sulfuric acid metering tank, and the control station automatically controls the addition of tail gas, the supplement of sulfuric acid and the discharge of sewage, thereby reducing the allocation of personnel and reducing the pollution discharged.

The present application provides a kind of herbicidal composition containing metal ion complex, comprising herbicidal active ingredient A and metal ion chelate;The herbicidal active ingredient A of the application is one or a combination of several of glufosinate-ammonium, glufosinate-ammonium salt, glufosinate-P and glufosinate-P salt;The metal ion chelate is one or a combination of several of o-phenanthroline, ethylenediaminetetraacetic acid, dithiotriazapentacarboxylic acid, ethylene glycol diethyl ether diamine tetraacetic acid, 2.2'-dipyridyl, nitrilotriacetic acid, citrate, tartrate, oxalate, pyrophosphate.The herbicidal composition of the present application not only can improve the efficacy of glufosinate-ammonium in cloudy and drought conditions, but also can reduce the use amount of glufosinate-ammonium, reduce environmental pressure, and is more environmentally friendly.

The invention discloses a preparation method and application of rare earth metal, and the preparation method comprises the following steps: 1) providing an electrolyte which is a mixture of a polar aprotic solvent and a lithium salt; wherein the polar aprotic solvent is selected from at least one of ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol dimethyl ether and N-methyl pyrrolidone; 2) mixing a rare earth compound with the electrolyte in the step 1) to obtain an electrolyte containing the rare earth compound; (3) electrolyzing the electrolyte containing the rare earth compound under constant potential; and (4) after electrolysis is finished, the cathode piece is taken out, residual electrolyte on the surface of the cathode piece is removed, and rare earth metal on the surface of the cathode piece is collected. According to the preparation method, rare earth metal can be obtained, and no other additives are added in the electrolysis process.