141 results about "Hydrogen halide" patented technology

Development of resists are useful, for example, to form a patterning mask in the context of high-resolution patterning. Development can be accomplished using a halide-containing chemistry such as a hydrogen halide. A metal-containing resist film may be deposited on a semiconductor substrate using a dry or wet deposition technique. The resist film may be an EUV-sensitive organo-metal oxide or organo-metal-containing thin film resist. After exposure, the photopatterned metal-containing resist is developed using wet or dry development.

Development of resists are useful, for example, to form a patterning mask in the context of high-resolution patterning. Development can be accomplished using a halide-containing chemistry such as a hydrogen halide. A metal-containing resist film may be deposited on a semiconductor substrate using a dry or wet deposition technique. The resist film may be an EUV-sensitive organo-metal oxide or organo-metal-containing thin film resist. After exposure, the photopatterned metal-containing resist is developed using wet or dry development.

The invention belongs to the technical field of nylon materials, and particularly relates to a high-heat-resistance halogen-free flame-retardant nylon material and a preparation method thereof. According to the invention, PA6 and PA66 base materials are compounded by utilizing the high heat resistance of PA66 and the processability advantage of PA6, and the heat deformation temperature of the material is improved through the synergistic effect of the modified glass fiber reinforcing agent and the antioxidant, so that the heat-resistant requirements of high-end scenes such as new energy automobile battery components and high-temperature electronic components are met. Halogen flame retardants are completely abandoned, the modified halogen-free flame retardant is adopted, the flame retardant effect is achieved, meanwhile, no harmful halogen hydride gas or dioxin is released during combustion, and the material still keeps excellent rigidity and toughness on the basis of high flame retardance and high heat resistance and is suitable for popularization and application. The problem that the mechanical property of a traditional halogen-free flame retardant is reduced due to high addition amount is solved.

Hybrid catalysts for simultaneous dehalogenation and cracking of plastic derived oil include composite particles, where each of the composite particles includes red mud particles and Mordenite zeolite particles. A process includes contacting a plastic derived oil stream with the hybrid catalyst in an FCC reactor to produce an FCC effluent and a used hybrid catalyst. The plastic derived oil stream comprises halogen-containing compounds, and contacting the plastic derived oil stream with the hybrid catalyst causes halogen-containing compounds to react to form hydrocarbons and hydrogen halides, where the hydrogen halides are adsorbed onto surfaces of the red mud particles. The FCC effluent has a concentration of the halogen-containing compounds less than the plastic derived oil stream. Contacting the plastic derived oil stream with the hybrid catalyst causes hydrocarbons in the plastic derived oil stream to undergo cracking reactions over the Mordenite zeolite particles to produce the FCC effluent.

Processes for decontaminating a plastic derived oil include contacting a plastic derived oil stream containing halogen-containing compounds with a decontamination catalyst at a reaction temperature of 350-450° C. to produce a decontaminated plastic derived oil and a used decontamination catalyst. The decontamination catalyst includes from 5-40 wt. % red mud particles, from 20-60 wt. % matrix material, and from 10-30 wt. % binder, per unit weight of the decontamination catalyst. Contacting the plastic derived oil stream with the decontamination catalyst at the reaction conditions causes halogen-containing compounds to react to form hydrocarbons and hydrogen halides, which further react with the red mud particles to produce metal halides on surfaces of the red mud particles. The decontaminated plastic derived oil has a concentration of the halogen-containing compounds less than a concentration of the halogen-containing compounds in the plastic derived oil stream.

The invention provides an organic silicon hydrolysis control method and system, and relates to the technical field of automation control, and the method comprises the steps: calculating the total flow of mixed materials through obtaining the type of organic silicon and the flow ratio of water to organic silicon; monitoring and acquiring the water content and hydrogen halide acid concentration change of the mixed material in each micro-channel reactor in real time; based on the monitored water content and hydrogen halide acid concentration, analyzing the hydrolysis degree of the organic silicon; establishing a hydrolysis degree prediction model according to historical data and real-time data; inputting the latest real-time data into the prediction model to obtain a hydrolysis target value and a hydrolysis degree prediction result of the subsequent micro-channel reactor; if the predicted hydrolysis degree cannot reach a target value, generating an adjustment strategy according to a prediction result, and dynamically adjusting the temperature and the reaction time of the subsequent microchannel reactor, so that the efficiency and the quality of the hydrolysis process can be optimized by dynamically adjusting the reaction conditions. The problems of lagging of a detection method, conservative reaction conditions and the like in the traditional technology are solved.

A hybrid catalyst for simultaneous dehalogenation and cracking of plastic derived oil includes a plurality of composite particles, where each of the composite particles includes red mud particles and USY zeolite particles. A process for upgrading plastic derived oil includes contacting the plastic derived oil with the hybrid catalyst in an FCC reactor to produce an FCC effluent and a used hybrid catalyst. The plastic derived oil comprises halogen-containing compounds, and the contacting at reaction conditions causes halogen-containing compounds to react to form hydrocarbons and hydrogen halides, which are adsorbed onto surfaces of the red mud particles. The contacting at reaction conditions also causes hydrocarbons in the plastic derived oil to undergo cracking reactions to produce the FCC effluent. The FCC effluent may have a reduced concentration of the halogen-containing compounds. A system that includes the hybrid catalyst is also disclosed.

The invention belongs to the technical field of organic synthesis, and particularly relates to a preparation method of an olefin monomer of benzocrown ether imidazole polymerized ionic liquid. Comprising the following steps: adding benzo-12-crown-4-ether, iodo-alkyl acid and polyphosphoric acid into a heat preservation kettle, carrying out heating reaction, adding chloro-alkyl acid, carrying out heating reaction, dropwise adding water to hydrolyze residual polyphosphoric acid, extracting an organic phase by chloroform, washing chloro-alkyl acid by using a sodium carbonate aqueous solution, drying, carrying out suction filtration, and transferring into a reaction kettle; adding 1-methylimidazole, carrying out heating reaction, carrying out rotary evaporation to obtain chloroform, adding dioxane, triethylamine and hydroquinone, carrying out heating reaction, and carrying out rotary evaporation to obtain dioxane; the ionic liquid, organic salt and pure water are added into a dissolving kettle, dichloromethane is used for extracting an organic phase, pure water is used for washing chloride ions and iodide ions in the organic phase, dichloromethane is obtained through rotary evaporation, and a product is dried in vacuum. According to the method, the steps of acylation, quaternization and dehydrohalogenation are used, so that the steps are simplified, and the purification treatment process of acylation after quaternization is avoided.

The invention discloses a method for preparing 3, 3, 3-trifluoro-1-propyne through a two-step method, the 3, 3, 3-trifluoro-1-propyne is prepared through a production system and collected through a material collecting system, and the preparation steps of the production system comprise: (1) in a first solvent, carrying out an addition reaction on 3, 3, 3-trifluoro-1-propylene and ICl to obtain 2-iodo-1-chloro-3, 3, 3-trifluoropropane; (2) in a second solvent, enabling the 2-iodine-1-chloro-3, 3, 3-trifluoropropane to react with alkali to eliminate bimolecular hydrogen halide so as to obtain 3, 3, 3-trifluoro-1-propyne; the temperature of the material receiving system is-196 to-60 DEG C, and the pressure of the material receiving system is-0.03 MPa to normal pressure. The 3, 3, 3-trifluoro-1-propyne is prepared by taking trifluoropropene as a raw material through two-step reaction, and the method has the advantages of simple preparation steps, high reaction yield, small amount of three wastes, low production cost and the like, and is very suitable for industrial production.

A method of manufacturing a semiconductor device is provided, which includes preparing a substrate, supplying metal-containing precursors onto the substrate to form a substrate having metal containing precursors thereon, supplying hydrogen gas onto the substrate having metal-containing precursors thereon, and supplying a reducing agent onto the substrate having metal-containing precursors thereon, wherein the supplying of the reducing agent and the supplying of the hydrogen gas are simultaneously or sequentially performed, and wherein the metal-containing precursors include molybdenum dichloride dioxide (MoO2Cl2), and the reducing agent includes a hydrogen halide. Also included are semiconductor devices made by the present methods.

Impurities are removed from a fluoroolefin having a structure of ═CF2 or ═CHF that has been obtained by a dehydrohalogenation reaction and that contains haloalkene, haloalkane, and / or haloalkyne impurities.Provided are: a method of purifying a fluoroolefin having a structure of ═CF2 or ═CHF, comprising bringing a fluoroolefin having a structure of ═CF2 or ═CHF that has been obtained by a dehydrohalogenation reaction and that contains at least one of haloalkane, haloalkene, and / or haloalkyne impurities into contact with a solid adsorbent to remove the impurities through adsorption; a high-purity fluoroolefin; and a production method therefor.

The present application relates to a preparation method of an alkali metal salt of bis(fluorosulfonyl)imide, comprising the following steps: carrying out a metallization reaction on bis(fluorosulfonyl)imide, an alkali metal halide salt and an acid-binding agent at ≥65 °C without adding an additional solvent to prepare the alkali metal salt of bis(fluorosulfonyl)imide. The acidic gas generated by this method can directly react with the acid-binding agent to form a hydrogen halide organic salt. Through the synergistic effects in multiple aspects, the yield and purity of the alkali metal salt of bis(fluorosulfonyl)imide can be effectively improved; moreover, the raw materials are easily available, the operation is simple, no solvent is required, the reaction conditions are relatively mild, the requirements for equipment in the reaction process and the product are relatively low, and industrial production can be carried out.

The present invention provides a process for preparing a 2-(3-alkenyl)-1,3-butadiene compound of the following general formula (A), wherein R1 and R2 represent, independently of each other, a hydrogen atom or a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms and optionally having an unsaturated bond(s), the process comprising the step of subjecting a secondary allylsulfone compound of the following general formula (G), wherein R1 and R2 represent, independently of each other, a hydrogen atom or a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms and optionally having an unsaturated bond(s), W represents an arenesulfonyl group, and Z represents a halogen atom, to a reductive removal of an arenesulfonyl group, W, at an allyl position, and then subjecting the secondary allylsulfone compound (G) to an elimination reaction of a hydrogen halide, HZ, in this order or in reverse order, to form the 2-(3-alkenyl)-1,3-butadiene compound (A).

Solvent-based compositions for post-etch residue removal and related methods are provided. The composition comprises a first amine halide component. The composition comprises a second amine halide component. The composition comprises a hydrogen halide component. The composition comprises an organic solvent. The organic solvent comprises a cyclic compound having at least one electron-withdrawing substituent. The organic solvent does not comprise at least one of N-methyl-2-pyrrolidone, dimethylacetamide, or any combination thereof. The first amine halide component, the second amine halide component, the hydrogen halide component, and the organic solvent are present in an amount sufficient for the composition to remove a substance at an etch rate of at least 50 Angstroms / min.

The application discloses a high-performance Pt-based molecular sieve catalyst for dehydrogenation of low-carbon alkanes to olefins and a preparation method and application thereof. The catalyst is mainly composed of a large single-crystal molecular sieve carrier, a main active component and a secondary active component. The b-axis length of the large single-crystal molecular sieve carrier is 1.20-4.50 microns. The main active component is Pt clusters with a particle size of 0.55-0.75 nm. The secondary active component is any one or several of Cu, Ga, Zn and Sn. The application controls the grain size of the molecular sieve by adding a certain amount of hydrogen halide acid in the crystallization process of the molecular sieve, and makes the formed Pt sub-nanometer clusters encapsulated in the micropores of the molecular sieve. The obtained catalyst is applied to the propane dehydrogenation reaction, shows high selectivity (more than 98%), and the catalyst is not deactivated after running for 6 months, thereby providing a new technical approach for developing a propane dehydrogenation fixed bed process with low energy consumption, low operation cost and no need for frequent regeneration.

The invention relates to a method for determining crystal defects in a workpiece made of monocrystalline silicon, comprising the following steps: (i) reactive ion etching at least one surface of the workpiece in a gas mixture comprising oxygen and one or more halogen-containing compounds selected from the group consisting of elemental halogen X2, hydrogen halide HX and nitrogen halide NHnX3-n, wherein X is selected from the group of Cl and Br, and 0 ≤ n ≤ 2, the flow rate of oxygen and of each of the one or more halogen-containing compounds is not less than 5 sccm and not more than 100 sccm, and the at least one surface of the workpiece to be etched is exposed to the gas mixture for no less than 10 seconds and no more than 20 minutes; and (ii) identifying defects on the etched surface of the workpiece by means of light scattering measurement.

A system for hydrotreating a hydrocarbon feedstock has a first stage including one or more first reactors capable of receiving the hydrocarbon feedstock and converting the hydrocarbon feedstock into an intermediate product. The feedstock has a total chlorine (Cl) content greater than 3 parts per million by weight (ppmw), and the intermediate product includes hydrogen chloride (HCl), ammonia (NH), and ammonium salts. The system also includes a heating system having a plurality of heat exchangers arranged in a loop and a heat transfer fluid capable of recovering and distributing heat to one or more fluids in the first stage. At least one heat exchanger of the plurality of heat exchangers is disposed between the first stage and the separation section, and the at least one heat exchanger is capable of maintaining a temperature of the intermediate product above the sublimation temperature of ammonia and hydrogen halide.

The invention discloses an ultraviolet-curable flame-retardant composite resin material as well as a preparation method and application thereof, and belongs to the technical field of insulating materials. The phosphate modified polyurethane acrylate is used for replacing a traditional halogen flame retardant, toxic and harmful substances such as halogen hydride are not released in the material combustion process, and meanwhile phenolic aldehyde modified acrylate and polyolefin modified polyurethane acrylate of the same system are added into the material; the phosphate modified polyurethane acrylate is used as an organic polymer material and has good compatibility with an acrylate material of the same system, the phosphate modified polyurethane acrylate, the phenolic aldehyde modified acrylate and the polyolefin modified polyurethane acrylate are dissolved in the reactive diluent, then the pigment and the filler are added to be mixed, and the coating is prepared. And finally, adding an adhesion promoter, a flatting agent and a photoinitiator to prepare the ultraviolet-curable flame-retardant composite resin material with good chemical resistance, high flame retardance and strong adhesion.

The present invention relates to a process for producing dimethyl ether (DME) and hydrogen (H2) from methane, comprising the steps of: a) providing a gaseous feed stream comprising methane; b) reacting said gaseous feed stream with at least one halogen reactant (X2), under reaction conditions effective to produce an effluent stream comprising methyl halide (MeX), and hydrogen halide (HX); c) separating from the effluent stream obtained in step b): (i) a methyl halide (MeX) stream; and, (ii) a hydrogen halide (HX) stream; d) reacting the methyl halide (MeX) stream separated in step c) with a solid metal oxide (MO(s)) under reaction conditions effective to produce metal halide (MX) and dimethyl ether (DME); and e) decomposing by means of electrolysis said hydrogen halide (HX) stream separated in step c) under conditions effective to produce a gaseous hydrogen (H2) stream and a stream comprising halogen reactant (X2).

The present invention relates to processes for producing hydrofluoro(ether)olefins by the dehydrohalogenation of a perfluoroalkyl(ether)halide in an aqueous alkali metal hydroxide solution with an oxygen-containing catalyst.

The invention relates to the technical field of air filtration, in particular to bio-based flame-retardant air filter paper and a preparation method thereof. The bio-based flame-retardant air filter paper comprises: base paper; the flame-retardant adhesive layer is compounded on the surface of the base paper; the base paper is prepared from raw materials including poly (p-phenylene benzobisoxazole) fibers, broadleaf wood fibers and coniferous wood fibers; the flame-retardant adhesive layer is prepared from a flame-retardant adhesive solution; the flame-retardant glue solution comprises styrene-butadiene latex, a flame retardant, carboxymethyl cellulose, a lubricant, potassium zirconium carbonate and water; the flame retardant is prepared from raw materials including a phytic acid solution and anhydrous calcium chloride. According to the flame-retardant adhesive layer provided by the invention, specific flame retardants phytic acid and anhydrous calcium chloride are adopted and matched with other specific components, so that good interaction can be realized, the flame retardance of the flame-retardant adhesive layer can be effectively improved, and the obtained filter paper is relatively large in dust holding capacity, relatively excellent in filtering performance and bursting resistance and relatively long in service life; no halogen hydride gas is generated during combustion, so that the environment-friendly effect is achieved.

A coagulant comprising a metallic salt and an acid carrier having at least one inorganic salt, an acid, and water. The metallic salt can be ferric chloride, ferric sulfate, aluminum sulfate, polyaluminium chloride, aluminum chlorohydrate, or a combination thereof. The acid carrier may comprise a first inorganic salt and a second inorganic salt. The first inorganic salt can be ammonium sulfate, and the second inorganic salt can be ammonium bisulfate. The acid can be phosphoric acid, a hydrogen halide, nitric acid, sulfuric acid, or a combination thereof. Mixing the coagulant with raw water generates a plurality of acid pockets in the raw water, causing reactions between the blended coagulant and the dissolved organic matter.

An object is to prevent lowering in the yield of R—COF due to contamination by impurities and thereby to produce a high-purity product of R—COF in a stable manner. According to the present invention, provided are: a method of purifying a carboxylic acid fluoride, comprising a step of removing a hydrogen halide by bringing a carboxylic acid fluoride containing the hydrogen halide into contact with a metal fluoride; a method of producing a high-purity carboxylic acid fluoride, comprising a step of bringing a carboxylic acid fluoride containing a hydrogen halide into contact with a metal fluoride as well as a high-purity carboxylic acid fluoride obtained therefrom; and a method of using a metal fluoride as an adsorbent for a hydrogen halide in a method of removing a hydrogen halide from a carboxylic acid fluoride containing the hydrogen halide.

The inorganic solid-state electrolyte provided in the application is prepared by heat treating organic ligands, halogen zinc salts and hydrogen halide acid in a sealed dry environment, and filtering and washing the reaction product after heat treatment to obtain halogen-based organic-coupled inorganic solid-state electrolyte material. The inorganic solid-state electrolyte provided in the application is prepared by screening organic ligands and zinc halide types and adjusting the molar ratio of the two, so as to prepare a solid-state electrolyte with high ionic conductivity, excellent thermal stability and chemical stability, good mechanical strength and a wide electrochemical window, thereby perfectly solving the side reaction at the interface between the zinc metal negative electrode and the electrolyte, and improving the electrochemical stability of the solid-state ionic battery. In addition, the application also provides a solid-state ionic battery comprising the inorganic solid-state electrolyte.

The invention relates to an integrated process for making fluorinated olefins. The present invention relates, at least in part, to a method for increasing the cost efficiency of a dehydrohalogenation production process of fluorinated olefins by recovering and recycling a spent dehydrohalogenation agent. In one aspect, the invention relates to dehydrohalogenating fluorinated alkanes (e.g., pentafluoropropane and / or hexafluoropropane) in the presence of a dehydrohalogenating agent to produce fluorinated alkenes (e.g., tetrafluoropropene and / or pentafluoropropene). Removal of the spent dehydrohalogenating agent from the reactor makes the organic matter readily separated from the dehydrohalogenating agent, the latter being recycled.

The present invention relates to a gas delivery system and method suitable for repairing or avoiding friction of high aspect ratio structures on a semiconductor substrate. The gas delivery system and method deliver a mixture of hydrogen halide, vaporized solvent, and carrier gas to the substrate via a heated supply line (201) to avoid droplet formation during the conveyance of the gas mixture. The gas mixture supply line is preferably maintained within a conduit (202) that includes a purge gas supply line (204) such that any hydrogen halide leaking through the gas mixture supply line (201) can be carried away by the purge gas flow within the conduit. In such an embodiment, the purge gas is also preferably heated and used as a measure to heat the distribution outlet of the gas mixture supply line.

Provided is a method for cleaning a high-pressure gas container capable of suppressing the generation of water inside the high-pressure gas container. This method for cleaning a high-pressure gas container is provided with: a pressure storage and purification step for purifying the inside of the high-pressure gas container; and a cleaning step for cleaning the inside of the high-pressure gas container after the pressure storage and purification step. The pressure accumulation purification step includes a pressure reduction step in which the interior of the high-pressure gas container is in a reduced pressure state, and an inert gas supply step in which an inert gas is supplied to the high-pressure gas container. The cleaning step is provided with: a hydrogen halide supply step for supplying hydrogen halide to the high-pressure gas container after the pressure accumulation purification step; a metal oxide removal step for generating water by reacting the metal oxide present on the inner surface of the high-pressure gas container with the hydrogen halide inside the high-pressure gas container after the hydrogen halide supply step; and a discharge step of discharging the water and hydrogen halide generated in the metal oxide removal step from the high-pressure gas container.

A preparation method of a light-emitting device includes forming a composite transition layer between a cathode and a quantum dot light-emitting layer and forming an anode on a surface of the quantum dot light-emitting layer away from the cathode. The composite transition layer includes a first transition layer, a second transition layer, and a third transition layer. The first transition layer is arranged on one side close to the cathode and includes a metal halide. The second transition layer is arranged on a surface of the first transition layer away from the cathode and includes a hydrogen halide. The third transition layer is arranged on a surface of the second transition layer away from the first transition layer and includes an ester compound.