984 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 discloses a preparation method and application of composite nanoparticles with a gold-silver core-shell structure, and aims to solve the problems that silver halide precipitates are generated on the surface of a silver core and the silver core is etched in the prior art. The thiourea solution is used for replacing a halogen-containing reagent, uniform epitaxial growth of gold on the surface of the silver core is mildly achieved, the gold-shell silver-core nanoparticles which are evenly wrapped and stable in structure are prepared, and the gold-shell silver-core nanoparticles are suitable for the fields of immunodetection and the like and are good in color development effect and low in cost. The method comprises the steps of preparing a gold salt solution, preparing gold nano-seeds, preparing silver nano-cores and generating gold-shell silver-core nano-particles through a chemical reduction reaction, and the problem that a core-shell structure grows unevenly is solved. When the method is applied to immunodetection, the material cost can be remarkably reduced, and a better color development effect can be achieved.

The present invention relates to the technical field of power cable manufacturing, and discloses a low-smoke halogen-free flame-retardant polyolefin sheathed power cable. The power cable outer sheath composite material comprises the following raw materials: metallocene linear low-density polyethylene, ethylene-vinyl acetate copolymer, high-density polyethylene, flame-retardant additives, high-temperature resistant components, antioxidants, cross-linking agents, and lubricants; by improving the flame retardant and high-temperature resistant properties of the polyethylene material, the prepared power cable has excellent mechanical properties, toughness, flame retardant properties, and high-temperature resistant properties, can work continuously and stably in a high-temperature environment, reduce the occurrence of fire accidents, and effectively prevent the spread of fire even in the event of a fire, and does not generate toxic hydrogen halide gas and thick smoke during combustion.

The invention provides an organic-inorganic perovskite light absorption layer, a perovskite solar cell and respective preparation methods, the light absorption layer adopts three-source co-evaporation to form an inorganic material layer, then the inorganic material layer is coated with an organic ammonium salt, cesium halide and lead chloride are introduced in the preparation method, a large-framework CsPb2X5 (X = Cl / Br / I) quasi-two-dimensional layered structure is formed in the inorganic layer, and the perovskite solar cell is prepared. The distance between crystal surfaces in the inorganic framework is enlarged, and permeation of an organic ammonium salt solution is promoted. The content of the lead chloride is controlled by regulating the deposition rate of the lead chloride so as to form gradient distribution, so that energy level alignment of the light absorption layer and the hole transport layer is realized, and the efficiency of the perovskite solar cell is improved.

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 present disclosure generally relates to catalysts having an electron withdrawing group for use in a polyurethane formulation. The polyurethane formulation includes the catalyst having an electron withdrawing group, a compound containing an isocyanate functional group, an active hydrogen-containing compound, a halogenated olefin and optionally one or more of an amine catalyst having at least one tertiary amine group, a non-amine catalyst and an additive.

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.

The invention relates to a preparation method of (R)-3-amino-1-oxa-8-azaspiro [4.5] decane-8-carboxylic acid tert-butyl ester, which comprises the following steps: carrying out Grignard reaction on N-BOC-4-piperidone and allyl magnesium halide to obtain an intermediate 1; carrying out substitution reaction on the intermediate 1 and 3-halogenated propylene to obtain an intermediate 2; performing olefin metathesis reaction on the intermediate 2 under the action of a Grubbs catalyst to obtain an intermediate 3; carrying out nitration reaction on the intermediate 3 and nitric acid to obtain an intermediate 4; carrying out hydrogenation reduction reaction on the intermediate 4 to obtain a racemic intermediate 5; and carrying out chiral resolution on the intermediate 5 by using a resolving agent to obtain a target product. The preparation method provided by the invention is short in process route and simple to operate, does not generate a large amount of waste water and waste gas, and can achieve higher total product yield and chemical and chiral purity.

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 a preparation method of a chlorantraniliprole key intermediate 2-amino-5-cyano-N, 3-dimethyl benzamide, which comprises the following steps: taking cheap and easily available o-methylaniline as a raw material, acylating an aniline substrate through Boc anhydride, carrying out ortho-lithiation on n-butyllithium, introducing carbon dioxide gas, and carrying out acid hydrolysis to obtain 2-amino-3-methyl benzoic acid, thereby obtaining the chlorantraniliprole key intermediate 2-amino-5-cyano-N, 3-dimethyl benzamide. The preparation method comprises the following steps: firstly, preparing an isatoic anhydride intermediate, then carrying out triphosgene ring closing to obtain an isatoic anhydride intermediate, carrying out bromine para-position halogenation, carrying out cuprous cyanide high-temperature Rosenmn-von Braun reaction, and finally carrying out methylamine ring opening to obtain the target product 2-amino-5-cyano-N, 3-dimethylbenzamide, and although the route is long, the yield is high, the continuity is good, few industrial three wastes are generated, and the cost is lower, so that the preparation method has great industrial production value.

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 provides a process for producing a solid catalyst component without using internal electron donors, prepared by reacting an alkoxymagnesium compound with an acyl halide and / or sulfinyl halide and / or sulfonyl halide compound, and an alkanol and / or an alkanediol to form reaction product (A), optionally reacting the reaction product (A) with an organohalide and oranophosphorus compound to form reaction product (B), reacting the reaction product (B) with a halogen-containing titanium or vanadium compound to obtain the solid catalyst component (C). The solid catalyst component can be used in a olefin polymerization catalyst system to produce polypropylene polymers with high activity, high stereo-regularity, and good morphology.

The purpose of the present invention is to provide a separation membrane having excellent organic solvent resistance, acid resistance, and base resistance. The present invention pertains to a modified polyphenyleneoxide separation membrane obtained by substituting, in a polyphenyleneoxide precursor film in which at least a portion of benzyl positions at position 2 and position 6 are halogenated, at least a portion of the halogens with an alkanolamine. The present invention also pertains to a method for producing a modified polyphenyleneoxide separation membrane, the method comprising immersing a precursor film made of a halogenated polyphenyleneoxide in which at least a portion of benzyl positions at position 2 and position 6 are halogenated, in a reaction solution containing an alkanolamine dissolved in an organic solvent in which the precursor film will not be dissolved, to substitute at least a portion of halogens at the benzyl positions with an alkanolamine.

The invention discloses a cuprous halide complex high-entropy luminescent material as well as a preparation method and application thereof. In the cuprous halide complex high-entropy luminescent material, cuprous halide is coordinated with phosphorus on a diphenylphosphine group and nitrogen on pyridine, and an electron donating group is connected to a benzene ring; an electron-donating group is connected to a benzene ring, an intramolecular donor-acceptor structure is realized, and regulation and control of a charge transfer path and disorder degree are realized by regulating the type and position of the electron-donating group on the benzene ring, so that the light-emitting color and efficiency are regulated and controlled.

The invention belongs to the field of organic synthesis, and particularly relates to preparation of 2-fluoro-3-aminobenzoic acid and ester compounds thereof. The reaction formula is shown in the specification, and specifically, a compound II is obtained by carrying out nitration reaction on a compound I serving as a raw material; carrying out halogenation reaction on the obtained compound II to obtain a compound III; fluorinating the compound III under proper reaction conditions to obtain a compound IV; preparing a compound V from the obtained compound IV in a hydrolysis or alcoholysis manner; performing catalytic hydrogenation dehalogenation on the compound V to obtain 2-fluoro-3-aminobenzoic acid and ester compounds shown as a compound X; the starting materials of the process route are cheap and easily available, the process flow is common unit operation in fine chemical engineering, the operation is convenient, the reaction conversion rate is high, and the selectivity is good. The completion of the invention provides an effective preparation method for industrial development of the compounds. # imgabs0 #

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.

A process for producing a halogenated isoolefin copolymer involves contacting an unsaturated isoolefin copolymer cement, the cement comprising an unsaturated isoolefin copolymer dissolved in an organic solvent, under halogenation conditions with a halogenating agent and an aqueous solution of an oxidant and a phase transfer catalyst to form a two-phase reaction medium comprising an organic phase and an aqueous phase, the oxidant capable of converting hydrogen halide to free halogen and the phase transfer catalyst being a compound of Formula (I): Formula (I) where: M+ is a cation of a Group VA element; X− is an anion that dissociates from the cation in an aqueous solution; and, R1, R2, R3 and R4 are the same or different and are independently a C1-30 organic moiety. The process provides improved halogen recovery, is less sensitive to the presence of water, and can make use of a variety of different oxidants.

The invention discloses a preparation method of fiazonetin, and belongs to the technical field of medicinal chemistry. According to the route, 2-halo-3-methylpyrazine which is low in price and easy to obtain is used as a raw material and sequentially reacts with hydrazine hydrate and orthoester, and then a hydrogenation reduction reaction is performed to generate a compound 4; carrying out chiral resolution or chiral separation on the compound 4 and carrying out condensation reaction on the compound 4 and p-fluorobenzoyl halide to obtain an intermediate compound 5 or 5'and a new intermediate compound 6; reacting the compound 6 with a halogenating reagent to obtain a compound 7; carrying out Suzuki coupling reaction on the compound 7 and a compound 8 to obtain a compound, namely, the compound of the formula A, namely, non-azonepan; according to the route, the raw materials are simple, easy to obtain and low in cost; the reaction is simple, the preparation efficiency is high, and the reaction yield of each step can be higher than 90%; no harsh reaction conditions exist, and operation is safe; post-treatment is simple and convenient, and environmental pollution is low. The method is suitable for large-scale production; a high-chiral product can be obtained, the chiral purity value of a final product is as high as 99.5%, and the method has relatively good market value and profound practical significance. # imgabs0 #