74 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.

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.

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.

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.

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 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.

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.

Production of HFO-1132 and, in particular, HFO-1132E, is produced from chlorotrifluoroethylene (CTFE) and / or trifluoroethylene (HFO-1123). In a first step, 1,1,2-trifluoroethane (HFC-143) is produced by hydrogenating chlorotrifluoroethylene (CTFE) and / or trifluoroethylene (HFO-1123) by reaction with hydrogen in the presence of a catalyst at a temperature of between about 75°C and about 225°C. The 1,1,2-trifluoroethane (HFC-143) may then be dehydrohalogenated in the presence of a catalyst to produce trans-A,2-difluoroethylene (HFO-1132E) and cis-1,2-difluoroethylene (HFO-1132Z). The cis-1,2-difluoroethylene (HFO-1132Z) may then be isomerized to produce trans-A,2-difluoroethylene (HFO-1132E).

The present application provides a CX 1 X 2 X 3 CX 4 =CHCX 7 X 8 X 9 [In the formula, X 1 , X 2 , X 3 , X 4 , X 7 , X 8 and X 9 are the same or different, and represent a halogen atom.] A method for producing a halogenated butene compound represented by the formula shown above, which includes reacting CX 1 X 2 X 3 C≡CCX 7 X 8 X 9 [In the formula, X 1 , X 2 , X 3 , X 7 , X 8 and X 9 are the same as described above.] A process for the reaction of a halogenated butyne compound represented by the formula shown above with hydrogen halide, which has a high conversion rate and is capable of obtaining a butene compound having 7 halogen atoms at a high selectivity.

The application provides a two-dimensional perovskite single crystal and a preparation method thereof and an X-ray detector. The preparation method of the two-dimensional perovskite single crystal comprises the following steps: S1, modifying a small organic molecule by using a hydrogen halide acid to obtain a modified molecule; S2, adding the modified molecule and lead halide into a precursor solvent to obtain a precursor solution; and S3, crystallizing the precursor solution to obtain a two-dimensional perovskite single crystal. The two-dimensional perovskite single crystal prepared by using the preparation method can enhance a dipole moment due to the modified organic molecule as an organic spacer cation, the enhanced dipole moment can induce a local electric field, the strong dipole of the organic spacer layer can prevent ion migration, the induced local electric field can promote carrier separation, and the working stability and electrical performance of the perovskite device are improved.

This invention provides a method for preparing a standard silicon wafer and a method for calibrating a planarity measurement device. The preparation method includes: performing two consecutive heat treatments on the silicon wafer in a reaction chamber: first, performing a first heat treatment at high temperature in a reducing atmosphere to remove the surface oxide layer and contaminants and optimize its surface atomic arrangement structure; then, lowering the temperature to a lower target temperature and performing a second heat treatment in a hydrogen halide etching atmosphere to obtain a standard silicon wafer through etching. Since the standard silicon wafer is obtained by etching in a clean reaction chamber, its surface particle and metal impurity content is extremely low, and its surface roughness is specific and has excellent uniformity. This makes the standard silicon wafer suitable for the precise calibration of non-contact planarity measurement devices such as surface light scattering instruments, which are extremely sensitive to cleanliness, and it has a wide range of applications.

The present disclosure relates to the field of hydrocarbon raw material conversion, in particular to a method for converting hydrocarbon raw materials and a device thereof. The method comprises the following steps: 1) reacting a gaseous hydrocarbon raw material with a halogen to produce a haloalkane and a hydrogen halide; 2) reacting the haloalkane provided in step 1) with an active metal to produce a first unsaturated hydrocarbon and a first metal halide; and 3) reacting the hydrogen halide provided in step 1) with an active metal to produce a second metal halide and hydrogen. In an electrochemical system of the present disclosure, hydrocarbon raw materials can be converted into high-value products such as hydrogen, ethylene, acetylene, propylene, graphite, etc.

The invention relates to the technical field of high polymer materials, in particular to a halogen-free flame-retardant reinforced PP / ABS alloy material, a preparation method thereof and an explosion-proof distribution box shell, and aims at solving the problems that although efficient flame retardance can be achieved through a traditional halogen flame-retardant scheme, a large amount of toxic smoke dust and corrosive hydrogen halide gas are released in the combustion process, and the flame retardance is poor. And increasingly strict environmental protection laws and regulations are seriously violated. The invention solves the problems that the interface compatibility of matrix resin and filler is deteriorated, the mechanical property of the material is obviously deteriorated, the tensile strength and impact toughness are greatly reduced, the processing fluidity becomes poor and the forming is difficult due to the fact that the common filler such as aluminum hydroxide or magnesium hydroxide needs to reach the same flame retardant grade at an extremely high adding proportion after turning to a halogen-free flame retardant system. By optimizing the proportion of matrix resin and introducing halogen-free flame-retardant components and glass fibers for reinforcement, the flame-retardant and mechanical properties are effectively balanced, meanwhile, halogen pollution is avoided, and the halogen-free flame-retardant glass fiber reinforced plastic has excellent halogen-free flame-retardant properties, good mechanical strength and environment-friendly characteristics.

The application provides a preparation method of high-content vitamin E acetate. The preparation method comprises the following steps: 2,3,5-trimethylhydroquinone (II) and isophytol (III) are subjected to condensation reaction in an organic solvent under the action of hydrogen halide, a catalyst and an impurity inhibitor to obtain tocopherol (IV); the impurity inhibitor is one or a combination of more than two of pentadecylamine, hexadecylamine, heptadecylamine, octadecylamine, nonadecylamine, eicosylamine and corresponding isomers or corresponding halogen acid salts; and the tocopherol (IV) and acetic anhydride are subjected to esterification to obtain vitamin E acetate (I). The method is simple, the reaction condition is easy to realize, the catalyst consumption is small, the catalyst and the impurity inhibitor are easy to reuse, and the method is safe, green and environmentally friendly; the method effectively inhibits reaction by-products, such as impurity A and impurity B, improves reaction selectivity and conversion rate, and improves product content and yield.

The invention relates to the field of gas preparation and detection, and particularly provides a device for preparing halogen hydride in smoke toxic gas of a flame-retardant polymer material and a testing method, the device comprises a high-temperature pyrolysis system, a high-temperature solid particle filtering system and a gas collecting system, and a flame-retardant polymer is pyrolyzed in the high-temperature pyrolysis system; the high-temperature pyrolysis system comprises an upper furnace body, a lower furnace body, a heating cavity, an arc-shaped groove and a furnace tube assembly, and the heating cavity, the arc-shaped groove and the furnace tube assembly are arranged between the upper furnace body and the lower furnace body; the furnace tube assembly comprises a detachable quartz connecting tube, a quartz boat in the quartz connecting tube, a stainless steel hook connected with one end of the quartz boat and a built-in magnet at the other end of the stainless steel hook, a handheld magnet is arranged outside the quartz tube and opposite to the built-in magnet, and the quartz boat can move towards the heating cavity or be far away from the heating cavity by operating the handheld magnet. The device can controllably and conveniently analyze the components of the flame-retardant polymer pyrolysis gas, makes up the blank in the field of analysis of the flame-retardant polymer pyrolysis gas, and is convenient to sample and high in safety.

The invention provides a circularly polarized light emission working substance based on a nonlinear chiral effect and a preparation method and application thereof, and the circularly polarized light emission working substance is prepared by taking metal halide, chiral organic cations, H3PO2 and haloid acid as raw materials through a cooling growth method. According to the invention, the circular polarization emission based on the nonlinear chiral effect of chiral perovskite is easy to integrate and process, and can generate a high asymmetric factor gCP-SHG; compared with a traditional 1 / 4 wave plate, the wave plate is more suitable for an integrated optical path; and compared with the linear chiral luminescence effect of chiral perovskite, the asymmetric factor is several orders of magnitude greater, so that the perovskite has higher practical value. Meanwhile, the perovskite material is easy to adjust, so that the asymmetric factor of the perovskite material can be further enhanced by adjusting the elements of the perovskite. Therefore, the method has a good application prospect in the fields of information encryption, quantum technology and three-dimensional display.

The application provides a patterned halogen perovskite film and a preparation method and application thereof, and the method comprises the following steps: (1) forming a photoresist film on a halogen perovskite film; (2) exposing the photoresist film obtained in the step (1); (3) developing the photoresist film obtained in the step (2); (4) placing the halogen perovskite film formed with the photoresist film obtained in the step (3) in a hydrogen halide acid solution for etching; and (5) placing the halogen perovskite film with the photoresist film remaining obtained in the step (4) in a mixture of halogen perovskite and an organic solvent for stripping, drying, and obtaining a patterned halogen perovskite film. Thus, the preparation method is compatible with modern microelectronic processes, and the quality and properties of the halogen perovskite film are basically unchanged before and after stripping, and the halogen perovskite film has a wide application prospect in the fields of photoelectric imaging arrays, display arrays, photoelectric logic array devices and the like.

To obtain a halogenated alkene compound and a halogenated alkyne compound in high conversion and high selectivity.SOLUTION: Any one of the following methods (1) to (4) is employed: (1) CX1X2X3CHX4CFHCX5X6X7 wherein X1, X2, X3, X4, X5, X6, and X7 are identical or different and are halogen atoms. (2) CX1X2X3CX4 = CHCX5X6X7 [X1, X2, X3, X4, X5, X6, and X7 are as defined above]. (3) CHX8A1CHX9A2 wherein A1 and A2 are each independently a halogen atom or a perfluoroalkyl group. X8 and X9 are identical to or different from each other and each represent a halogen atom; (4) CX8A1 = CHA2 [wherein A1, A2 and X8 are as defined above] is subjected to a dehydrohalogenation reaction in the gas phase in the presence of a catalyst. Is subjected to a dehydrohalogenation reaction in the presence of a catalyst.SELECTED DRAWING: None

The invention relates to a system and process for thermo-chemical transformation of mixed wet waste streams using a rotary kiln reactor equipped with a multi-annular concentric feed assembly. A central conduit introduces wet food waste mixed with plastics, biodegradable packaging, and fluorinated materials, while an intermediate annulus supplies auxiliary fuel and an outer annulus delivers oxidant gas under controlled sub-stoichiometric conditions. The kiln operates through sequential zones of reduction, partial oxidation, and complete oxidation to convert organics into hydrogen, carbon monoxide, methane, and finally carbon dioxide and water. Halogens and sulfur compounds are converted to hydrogen halides and hydrogen sulfide, which are neutralized downstream with calcium oxide to form stable salts. Heat recovery from the flue gas produces steam or hot water. The process eliminates pre-drying, allows co-processing of wet and dry wastes, and provides efficient energy recovery in a compact, scalable configuration. The invention eliminates the need for pre-drying or segregation, enabling simultaneous treatment of heterogeneous feedstocks.

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 reduction step for reducing the pressure inside the high-pressure gas container until the internal pressure becomes 5 Pa or less; and a cleaning step for cleaning the inside of the high-pressure gas container after the pressure reduction step. The cleaning step includes a hydrogen halide supply stage in which hydrogen halide is supplied to the high-pressure gas container subjected to the pressure reduction step, a metal oxide removal stage in which hydrogen halide is discharged from the high-pressure gas container subjected to the hydrogen halide supply stage, and a discharge stage in which hydrogen halide is discharged from the high-pressure gas container subjected to the metal oxide removal stage. And a hydrogen halide supply step for reacting the metal oxide present on the inner surface of the high-pressure gas container with the hydrogen halide supplied by the hydrogen halide supply step to generate water, and a discharge step for discharging the water generated in the metal oxide removal step and the hydrogen halide supplied by the hydrogen halide supply step from the high-pressure gas container.

This invention relates to a method for preparing multifunctional triporous fibers from recycled polyester, belonging to the field of synthetic fiber technology. The invention first synthesizes a self-made flame retardant containing double bonds using DOPO as a base, then prepares quaternized vinyl imidazole-modified acrylate-based self-made antistatic particles. These two are then blended with recycled PET chips grafted with double-bonded monomers and an initiator, followed by melt spinning using a triangular spinneret to obtain the target fiber. The three-dimensional cross-linked network, the dispersion and toughening of functional particles, the rigid reinforcement of the flame retardant, and the formation of the triporous fiber synergistically enhance the fiber's mechanical properties. The polar groups of the flame retardant form ion pairs with the quaternary ammonium salt, effectively improving ionic conductivity and imparting good antistatic properties to the fiber. The charring and heat insulation of the flame retardant, combined with the gas-phase flame retardancy achieved by the antistatic particles releasing hydrogen halides to capture free radicals, synergistically achieve excellent flame retardant effects. The fiber prepared by this invention exhibits excellent mechanical properties, antistatic properties, and flame retardant properties.

A process for producing a halogenated isoolefin copolymer includes contacting an unsaturated isoolefin copolymer binder with an aqueous solution of a halogenating agent and a potassium salt-based oxidizing agent under halogenating conditions to form a two-phase reaction medium comprising an organic phase and an aqueous phase, the oxidizing agent being capable of converting hydrogen halide to free halogen, the binder comprising an unsaturated isoolefin copolymer dissolved in an organic solvent. The process provides improved halogen recovery, is less sensitive to the presence of water, and uses a more stable and less environmentally damaging oxidizing agent.

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 application discloses a MXene material containing carbon or phosphorus functional groups and a use thereof, and utilizes a gas (halogenated hydrogen gas or halogen element gas) with etching effect to react with a MAX material, etches A components in the MAX phase material, obtains MX (MXene) containing halogen functional groups, and then performs a functional group substitution reaction with an alkane or phosphorus, so that the MXene material with carbon or phosphorus end-capping is obtained.

The application discloses a radiation modified high-flame-retardant high-strength PBT material, which comprises the following components in parts by mass: PBT resin: 30-80 parts, reinforcing fiber: 0-50 parts, crosslinking sensitizer: 0.5-10 parts, stabilizer: 0.5-2 parts, flame retardant: 0-20 parts, antioxidant: 0.1-1 part, and lubricant: 0.1-2 parts. The addition of the flame retardant in the formula can achieve excellent flame-retardant effect with a small amount of the flame retardant, can retain the mechanical strength of the material as much as possible, is beneficial to the realization of thin-wall high-flame-retardant, and can obviously reduce the cost of the material by reducing the amount of the flame retardant. The CTI of the bromine-based flame-retardant system PBT material is obviously improved, and the failure risk of the material in high-humidity or polluted environment is reduced. Compared with a chemical modification mode, the radiation modification is green and environment-friendly, the amount of the flame retardant is reduced, harmful gases such as hydrogen halide are reduced, the requirement of developing green economy is met, and the radiation modification is suitable for large-scale popularization and application in the field of electronic and electrical appliances.