789 results about "Halogenation" patented technology

Provided herein are methods of filling features with molybdenum (Mo) that may be used for logic and memory applications. The methods involve treating the surface of feature prior to feature fill. In some embodiments, the methods involve treating the surface of feature by exposure to a molybdenum halide. In some embodiments, the methods involve treating the surface of the feature by selective oxidation, nitridation, or halogenation. Apparatus to perform the methods are provided.

The present invention is a color filter provided with at least a substrate and a colored layer provided on the substrate, the colored layer including: a green colored layer containing a halogenated zinc phthalocyanine pigment to which a substituent is bonded via an ether bond; and a blue colored layer containing a lake pigment having a specific structure.

The invention discloses a tryptophan enzyme mutant and application thereof. The tryptophan enzyme mutant is obtained by mutation of at least one site of the 50th amino acid L, the 394th amino acid V and the 395th amino acid E of a tryptophan enzyme parent. The tryptophan enzyme mutant disclosed by the invention has good substrate bias, particularly has better selectivity and catalytic efficiency on 6 '-halogenated tryptophan, and not only simplifies the production process, but also improves the production efficiency when being used for biosynthesis production of the tylosin.

The invention belongs to the technical field of two-dimensional material preparation, and provides a method for preparing an MXene material based on a free radical mechanism, and the method comprises the following steps: S1, carrying out acid pickling on MAX phase powder to obtain an acid pickling precursor; s2, mixing the pickling precursor, an organic halogenation reagent and a buffer reagent, and then performing an etching reaction under an ultraviolet irradiation condition; s3, after the etching reaction is completed, an obtained product is cleaned and dried, and the MXene material is obtained. According to the method, the organic halogenation reagent is irradiated by ultraviolet light, so that the halogen free radicals are excited, and the halogen free radicals are used as an etching agent to realize selective etching of the A layer in the MAX phase material, so that the MXene material is prepared. The method has the characteristics of safety and environmental protection.

The invention relates to a hot-melt halogen-free flame-retardant epoxy resin composition and a preparation method thereof, a prepreg and a fiber reinforced composite material. The composition is composed of an epoxy resin matrix, a halogen-free flame retardant, a curing agent and an auxiliary agent, the organic phosphorus halogen-free flame retardant with a specific molecular structure is adopted to react with the epoxy resin matrix, the flame retardant property and the thermal stability of a system are improved, the mechanical property is considered, and the adding amount of the halogen-free flame retardant is 10-25% of the mass of epoxy resin. The preparation method comprises the following steps: stirring and mixing the epoxy resin and the flame retardant at 50-80 DEG C, adding the curing agent and the auxiliary agent, uniformly dispersing, and cooling to obtain the composition. According to the prepreg, basalt fiber is used as a reinforcing material, a fiber reinforced composite material can be prepared through a hot press molding process, the oxygen index (LOI) of the prepreg is higher than 30%, the vertical combustibility reaches the UL94 V-0 level, and the prepreg is suitable for the fields of new energy automobiles, electronic appliances and the like. Through halogen-free design, the halogen-free flame-retardant halogen-free flame-retardant halogen-free halogen-free flame-retardant halogen-free halogen-free flame-retardant halogen-free halogen

The invention provides a surface treatment agent, a surface treatment method of a copper foil and a copper foil negative electrode current collector, and belongs to the technical field of energy materials. The copper salt is used as a copper source, the N-alkyl pyridine halogen salt ionic liquid is used as a halogen source, the copper salt and the N-alkyl pyridine halogen salt ionic liquid react in the solution to form cuprous halide particles on the surface of the copper foil in situ, the specific surface area and the roughness of the surface of the copper foil negative electrode current collector are increased, the copper foil negative electrode current collector is firmly combined with an active substance, and therefore the specific capacity and the rate of the lithium ion battery are improved; cu < + > in the cuprous halide particles formed on the surface of the copper foil also participates in electrochemical reaction, so that the specific capacity of the lithium ion battery is further improved. The result of the embodiment shows that the capacity of the lithium ion battery prepared from the copper foil negative current collector obtained by carrying out surface treatment on the copper foil by the surface treating agent provided by the invention can reach 825mAh g <-1 >; 100 times of charge-discharge cycles are carried out under the large current density of 1Ag <-1 >, and the retention rate can reach 95%.

The invention provides a halide solid electrolyte and a preparation method and application thereof, and the preparation method comprises the following steps: (1) mixing a metal halide, lithium halide and an organic amine compound to obtain a eutectic precursor; and (2) carrying out heat treatment on the eutectic precursor in an oxygen-free environment to obtain the halide solid electrolyte. According to the preparation method, firstly, the molecular-level uniformly-mixed eutectic precursor is obtained by utilizing the intermolecular interaction of the raw material components, then the precursor can be directly subjected to heat treatment, and the halide solid electrolyte can be obtained without introducing other treatment steps. Therefore, according to the preparation method, the preparation process is simplified, tedious preparation procedures are avoided, the energy consumption and the time cost are reduced, the period is short, and the production efficiency is remarkably improved. In addition, the adopted raw materials are environment-friendly and low in price. The preparation method has good universality and is beneficial to large-scale production.

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.

The disclosed and claimed subject matter relates to (1) a process for performing thermal atomic layer etching (ALE) of films that include ZrO2, HfO2, (Hf—Zr)O2 alloy or similar materials which does not require the use of plasmas or corrosive halogenating chemistries and (2) a metal-insulator-metal capacitor (MIMcap) with unique properties enabled by a unique dielectric processing method.

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.

Yttrium complexes and related methods are provided. A method of making an yttrium complex comprising contacting a metal alkyl cyclopentadienyl compound with an yttrium trihalide compound in a non-coordinating solvent to obtain a tris (alkyl cyclopentadienyl) yttrium complex. A composition includes a tris (alkylcyclopentadienyl) yttrium complex.

A fire-retardant pressure sensitive adhesive, article including such adhesive, and uses thereof, wherein the adhesive includes: a (meth)acrylate polymer and a non-halogenated flame retardant. The (meth)acrylate polymer includes interpolymerized monomers comprising: (a) an acid-functional (meth)acrylate monomer; (b) a hydroxy-functional (meth)acrylate monomer; (c) a noncationic nitrogen-containing monomer; and (d) a (meth)acrylate ester of a linear or branched alcohol having 3 to 4 carbon atoms and / or a (meth)acrylate ester of a linear, branched, or cyclic alcohol having 5 to 20 carbon atoms.

The invention relates to a preparation method and application of surface passivation red light perovskite quantum dots, and the preparation method comprises the following steps: preparing a monovalent cation precursor from cesium carbonate, oleic acid and 1-octadecene; preparing a lead source precursor from the thiophene-sulfonamide ligand, lead halide, zinc halide, oleylamine, oleic acid and 1-octadecene; thermally injecting the monovalent cation precursor into the lead source precursor, and cooling to prepare a perovskite quantum dot solution; performing anti-solvent purification on the perovskite quantum dot solution to obtain surface passivation red light perovskite quantum dots; the invention also discloses application of the surface passivation red light perovskite quantum dot prepared by the preparation method in preparation of an electroluminescent diode. According to the invention, the purpose of preparing the halogen perovskite quantum dot with excellent optical performance, good stability and excellent performance of the prepared electroluminescent diode is achieved.

The invention discloses a preparation method of a mono-substituted cyclopentadienyl yttrium precursor, and relates to the field of chemical product preparation, the preparation method of the mono-substituted cyclopentadienyl yttrium precursor comprises the following steps: S1, adding mono-substituted cyclopentadiene into a solution of an alkali metal compound, and then carrying out a heating reaction; s2, dropwise adding the mixture obtained in the step S1 into a solution containing yttrium halide, and carrying out a reflux reaction; and S3, filtering the mixture in S2, and carrying out reduced pressure distillation to remove the solvent. According to the preparation method disclosed by the invention, by changing the solvent and controlling the equivalent weight of reactants and the reaction temperature, the yield can be improved, the purification step can be simplified, and the high-efficiency and large-scale preparation of the mono-substituted cyclopentadienyl yttrium can be realized.

The invention discloses a preparation method of 2-chloro-4-(4-fluoro-2-methylphenyl)-5-aminopyridine as an elinnetin intermediate, and belongs to the technical field of medicine synthesis. According to the invention, cheap and easily available 3-nitro-4-hydroxypyridine is used as an initial raw material, and the 2-chloro-4-(4-fluoro-2-methylphenyl)-5-aminopyridine is synthesized at low cost and high yield through the steps of halogenation, coupling, hydroxylation, reduction, condensation and the like. The raw materials used in the whole process are simple and easy to obtain, the reaction conditions are milder, and the reaction route is short. According to the invention, the Suzuki coupling reaction is firstly carried out, and then the hydroxylation of the pyridine 2 position is carried out, so that the use of an anhydrous reagent and harsh anhydrous reaction conditions are effectively avoided, and the reaction cost is remarkably reduced. In addition, the method is easy and convenient to operate, good in stability, high in total yield and suitable for industrial large-scale production.

The present invention relates to a process of oxidation of 2,3,6-trimethyl phenol by oxygen or an oxygen-containing gas in the presence of in the presence of a copper (II) halide as catalyst and of water and a specific diol comprising at least on tertiary hydroxyl group as reaction medium.

The invention provides a preparation method of a hard carbon negative electrode material, which specifically comprises the following steps: uniformly mixing aromatic hydrocarbon-rich heavy oil with a catalyst and a halogenated cross-linking agent, carrying out halogenated cross-linking-polycondensation reaction in a high-temperature and high-pressure reaction kettle to preliminarily obtain halogenated cross-linked asphalt, further pre-oxidizing to obtain thermosetting cross-linked asphalt, and carrying out secondary pre-oxidation on the thermosetting cross-linked asphalt to obtain the hard carbon negative electrode material. And carrying out high-temperature carbonization by taking the thermosetting crosslinked asphalt as a hard carbon precursor to obtain the hard carbon negative electrode material. The catalyst is used for initiating a crosslinking reaction between the halogenated crosslinking agent and the aromatic hydrocarbon-rich heavy oil, the molecular structure of the aromatic hydrocarbon-rich heavy oil is effectively adjusted, a thermosetting precursor is further obtained through pre-oxidation, and the aromatic hydrocarbon-rich heavy oil is inhibited from tending to be structurally ordered in the carbonation process; and a hard carbon material with a disordered carbon microcrystalline structure is formed in the subsequent carbonization process. The prepared hard carbon is used as the negative electrode of the sodium-ion battery, the reversible specific capacity under the current density of 0.1 C reaches 360 mAh / g or above, the specific capacity under the large current density of 5 C reaches 200 mAh / g or above, and the hard carbon has stable cycle performance and good rate capability.

The invention relates to a surface-modified co-doped lithium-rich manganese-based positive electrode material and a preparation method thereof. The surface-modified co-doped lithium-rich manganese-based positive electrode material comprises a bulk phase part and a surface part, the bulk phase part is a cation co-doped lithium-rich manganese-based material, the chemical formula is Li < 1.2 > Ni < 0.17 > Co < 0.16-x > M < x > Ru < y > Mn < 0.47-y > O < 2 >, in the formula, M is at least one of V, Cr and Fe, x is more than or equal to 0.06 and less than or equal to 0.14, and y is more than or equal to 0.05 and less than or equal to 0.2; the surface part is a selenium-halogen composite modified layer coating the bulk phase part in situ, contains selenide and lithium halide, and is formed by heat treatment of a bulk phase material, a selenium source and a halogen source in an inert atmosphere. The positive electrode material provided by the invention has excellent structural stability and high lithium ion diffusion coefficient, has good interface compatibility with halide electrolyte, and has high energy density and long cycle stability when being used in a halide all-solid-state battery.

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 discloses a preparation process of halogenated butyl rubber for improving high temperature resistance of a tire. According to the invention, the high temperature resistance is obviously improved through multi-scale filler cooperation and interface strengthening. The pre-modification treatment of nano aluminum oxide and a silane coupling agent Si69 is combined with a segmented temperature control process in an internal mixing stage, so that nano particles are uniformly dispersed in a rubber matrix, an efficient heat-conducting network is formed, and the dynamic heat generation is reduced by 20% or above; a compound filling system of a modified montmorillonite organic intercalation and carbon black N660 inhibits oxygen permeation by using a lamellar barrier effect, and is matched with the free radical capture capability of nano cerium oxide CeO2, so that the tensile strength retention rate of the rubber material is increased to 90% after the rubber material is thermally aged for 96 hours at the high temperature of 150 DEG C. Meanwhile, due to the gradient vulcanization design of the microencapsulated sulfur and the dicumyl peroxide DCP, a C-C bond and C-S bond coexisting dual cross-linked network is constructed in the dynamic vulcanization stage, the high-temperature compression permanent deformation is reduced by 35%, and the service life of the tire under the extreme working condition is remarkably prolonged.

The invention relates to the field of antibacterial functional polymer materials, and discloses a quaternary phosphonium salt type isobutyl cationic polymer as well as a preparation method and application thereof. The preparation method of the polymer comprises the following steps: under a cationic polymerization condition and in the presence of a solvent and a catalyst, isobutene and alkyl styrene are contacted for cationic polymerization, a terminator is added for terminating to obtain a solution containing an isobutene-alkyl styrene copolymer, the solution and a halogenating agent are subjected to a halogenating reaction, and the isobutene-alkyl styrene copolymer is obtained. The preparation method comprises the following steps: preparing a halogenated isobutylene-alkyl styrene copolymer solution, contacting the halogenated isobutylene-alkyl styrene copolymer solution with an organic phosphine compound, carrying out an ionization reaction to obtain a slurry material containing solid particles, carrying out solid-liquid separation to obtain a solid phase, and washing and drying the solid phase with a solvent and deionized water to obtain the quaternary phosphonium salt type isobutylene cationic polymer. The solvent is selected from dichloromethane and / or trichloromethane. The polymer prepared by the method is high in purity, high in quaternary phosphonium salt group content and higher in antibacterial property.

The invention discloses a method for synthesizing carbonic ester through high-selectivity catalysis of CO2 by taking a halogen-non-halogen ionic liquid composite layered double hydroxide intercalation material structure as a multi-ion buffer catalysis system. The method comprises the following steps: preparing an ionic liquid containing the same cation but different anions (halogen and non-halogen), compounding the ionic liquid with a layered double hydroxide intercalation material to construct a halogen-non-halogen ion buffer catalyst, and catalyzing the reaction of synthesizing carbonic ester from CO2. The application of inhibiting halogenation side reaction and synthesizing carbonic ester with high selectivity can be realized. The halogen-non-halogen composite intercalation material system designed by the invention is simple in preparation method and has the functions of halogen and non-halogen basic ions, and the intercalation structure provides a buffer ordered effect of ion active sites, so that the problem of selectivity of a carbonate product synthesized by catalyzing CO2 through halide ions is solved.

The invention discloses a perovskite solar cell and a preparation method thereof, the preparation method comprises a step of preparing a perovskite light absorption layer, and the step of preparing the perovskite light absorption layer comprises the following steps: spin-coating a dissolved lead iodide precursor solution on a substrate with a carrier transport layer deposited on the surface, and carrying out heating treatment to prepare a lead iodide film; spin-coating the lead iodide thin film with an organic halogenated ammonium salt solution containing a hydroxybenzoic acid cross-linking agent, and carrying out heating treatment to obtain a perovskite thin film; wherein the hydroxybenzoic acid cross-linking agent at least comprises hydroxyl, carboxyl and a benzene ring. The performance of the perovskite light absorption layer prepared by the method is obviously improved.

The invention belongs to the technical field of preparation of herbicides, and particularly relates to a preparation method of tralkoxydim. The preparation method comprises the following steps: carrying out ethylation reaction on 3-hydroxy-5-(2, 4, 6-trimethylphenyl)-2-propoximido-cyclohex-2-ene-1-ketone and halogenated ethane under an alkaline condition, so as to prepare tralkoxydim. According to the method, the use of ethoxyamine hydrochloride or ethoxyamine in the traditional process is innovatively avoided, the raw material cost is reduced, the ethylation reaction is carried out by using halogenated ethane, the reaction raw materials are cheap and easy to obtain, meanwhile, single sodium / potassium halide wastewater is produced, the wastewater treatment process is greatly simplified, meanwhile, the generation of carnallite wastewater and carnallite-containing solid waste is eliminated, and the method is suitable for industrial production. The method has the advantages of environmental protection, economy and simple process, and is suitable for industrial large-scale production.

Provided is a method for producing an organohalogen compound with which it is possible to produce an organohalogen compound with high selectivity and high yield. A method for producing an organohalogen compound, which comprises a halogenation step for obtaining an organohalogen compound (A) represented by formula (1) by halogenating a compound represented by formula (1 [alpha]) as a starting material, the halogenation step being a step for halogenating in a multiphase-containing system, the plurality of phases include an organic phase containing an organic solvent as a solvent and an aqueous phase containing water as a solvent.

The invention provides a surface-modified perovskite nanocrystal and a preparation method and application thereof, and the surface-modified perovskite nanocrystal comprises: a perovskite nanocrystal having a chemical composition of ABX3; wherein A is selected from at least one of Cs < + >, CH3NH3 < + > and HC (NH2) 2 < + >; b is selected from at least one of Pb < 2 + >, Sn < 2 + >, Ge < 2 + > and Mn < 2 + >; x is selected from halogen anions; the surface of the perovskite nanocrystal is coated with an organic ligand layer; the organic ligand comprises a halogenated organic ligand. In the surface modified perovskite nanocrystal, the surface of the perovskite nanocrystal is coated with the organic ligand layer, so that surface defects can be effectively passivated at the same time, and the surface integrity and the crystallization quality of the nanocrystal are remarkably improved. And due to the surface consistency, the defect state density is reduced, and the exciton and phonon coupling coefficient is reduced, so that a non-radiative composite channel is remarkably inhibited, and the optical performance of the perovskite nanocrystal is remarkably improved.

The present invention relates to a process for treating a feedstock comprising plastics and / or tyres and / or solid recycled fuel pyrolysis oils containing halogenated compounds, said process comprising: a) a hydrotreating step to obtain a partially hydrotreated effluent having a reduced halogenated compound content, b) a separation step to obtain a partially hydrotreated effluent having a reduced halogenated compound content, and c) a separation step to obtain a partially hydrotreated effluent having a reduced halogenated compound content. The present invention relates to a process for the steam cracking of a petroleum feedstock fed with a partially hydrotreated effluent from step a) and an aqueous solution to obtain a gaseous effluent, an aqueous effluent and a partially hydrotreated hydrocarbon effluent, c) a steam cracking step of a petroleum feedstock wherein at least a portion of the partially hydrotreated hydrocarbon effluent is introduced as a common feedstock, the mixture of the petroleum feedstock and the partially hydrotreated hydrocarbon effluent from step b) has a halogenated compound content of less than or equal to 3 ppm by weight without first undergoing a further hydrotreating step carried out at a higher temperature and / or pressure.

The application belongs to the field of photoelectric functional materials, and discloses a blue light excitable Cu-based fluorescent material and a preparation method thereof. The material is obtained by room temperature reaction of 4-pytrz and halogenated cuprous CuX (X=Br, I), wherein 4-pytrz is 4-(4H-1,2,4-triazole-4-yl)pyridine. Two highly stable coordination polymers, complex 1 [CuBr(4-pytrz)2] n and complex 2 [Cu2I2(4-pytrz)] n are designed and synthesized, which have good thermal stability, exhibit a wide excitation band covering from deep ultraviolet light to blue light region, and have a quantum efficiency of 19.36% under blue light excitation. The complexes exhibit effective solid-state emission and enhanced light stability, and have wide application prospects.