419 results about "Alkyl amine" patented technology

The invention discloses a synthesis method of amphiphilic quantum dots and application of the amphiphilic quantum dots in nano oil displacement, and belongs to the field of nano oil displacement. The synthesis method comprises the following steps: heating a mixture containing a carbon source and a nitrogen source in an air atmosphere for reaction, and centrifuging, filtering and drying a reaction product to obtain the amphiphilic quantum dots, the carbon source is selected from at least one of glucose, mannose, citric acid, lignin, chitosan and starch; the nitrogen source is selected from at least one of alkylamine, and the carbon chain length of the alkylamine is C6 to C12. The synthesis method is simple, heating of a high-pressure reaction kettle is not needed, the technological process is simple, and the method is suitable for large-scale industrial production; the series of amphiphilic carbon quantum dots show better solubility and higher absolute fluorescence quantum yield in water and various organic solvents.

The invention provides a non-cured asphalt-based waterproof coating and a preparation method thereof. Wherein the non-cured asphalt-based waterproof coating comprises the following raw material components in parts by weight: 45-70 parts of asphalt; 10 to 20 parts of a compatilizer; 3-10 parts of a thermoplastic elastomer; 3-5 parts of styrene butadiene rubber; 3-5 parts of resin; 2-5 parts of wax powder; 5 to 20 parts of modified graphene oxide; 12-25 parts of an inorganic filler; 0.2 to 0.8 part of a dispersant; wherein the modified graphene oxide is alkylamine modified graphene oxide. According to the non-cured asphalt-based waterproof coating provided by the invention, alkylamine modified graphene oxide is introduced into the waterproof coating, has better compatibility with other components, and forms more heat conduction routes in the non-cured asphalt-based waterproof coating, so that the heat conductivity coefficient of the waterproof coating is effectively improved, and the heating time and heating temperature of coating construction are reduced; no smoke is generated during construction, the environmental protection property is high, and fire of the non-curing coating caused by high-temperature heating can be effectively reduced.

The invention discloses a super-hydrophobic polyimide-based anti-corrosion and anti-fouling self-cleaning coating and a preparation method thereof, and belongs to the technical field of organic anti-corrosion coatings, the preparation method comprises the following steps: firstly, preparing GO modified by at least one of POSS, a silane coupling agent, chain alkylamine and chain alkyl isocyanate; then compounding bottom layer slurry, coating the surface of a base material with the composite bottom layer slurry, and carrying out thermal imidization treatment to obtain a composite bottom layer; finally, the surface of the composite bottom layer is coated with modified SiO2 containing alkane siloxane or perfluorosiloxane and a binding agent, and the super-hydrophobic polyimide-based anti-corrosion and anti-fouling self-cleaning coating is prepared. The composite coating is simple in preparation process and high in operability, and has good super-hydrophobic, anti-corrosion and mechanical properties.

The invention provides a piperazinyl steric hindrance type liquid-solid phase change carbon trapping agent and a preparation method thereof, and relates to the field of liquid-solid phase change trapping of CO2. Alkylamine and the like are used as raw materials, piperazinyl steric hindrance type organic amine with secondary amino and tertiary amino structures is designed, and the piperazinyl steric hindrance type organic amine is prepared through ring-opening addition, nucleophilic substitution, cyclization, hydrogenation and other reactions. The piperazinyl steric hindrance type organic amine is compounded with a solvent and a functional additive to prepare the piperazinyl steric hindrance type liquid-solid phase change carbon trapping agent. According to the steric hindrance type phase change carbon trapping agent, on the basis of the electron donating effect of alkyl, the absorption rate of trapping CO2 is increased by 2.2 times compared with that of traditional steric hindrance amine (AMP); on the basis of the steric hindrance effect of the tertiary amine site, the hydrogen-bond interaction between carbamate and the solvent is weakened, liquid-solid phase splitting after the aqueous solution carbon capture system absorbs CO2 is promoted, the problem of poor cycling stability of a non-aqueous solvent system is solved, and the capture efficiency and enrichment degree of CO2 are improved.

The invention relates to the technical field of fuel additives, in particular to a fuel additive as well as a preparation method and application thereof. Comprising the following components in parts by weight: 60 to 220 parts of bis-polyether amine, 10 to 20 parts of polyisobutene amine, 5 to 15 parts of polyether polyol, 5 to 30 parts of alkyl amine alcohol, 0.5 to 20 parts of polybasic fatty acid ester, 0.5 to 20 parts of alkyl acid ester, 10 to 30 parts of a catalyst, 2 to 7 parts of an antioxidant, 5 to 10 parts of a corrosion inhibitor and 10 to 50 parts of carrier oil. A small amount of the fuel additive is mixed with gasoline or diesel oil, and through bis-polyether amine and polyisobutene amine, combustion of fuel oil in a combustion chamber of an internal combustion engine is improved, more complete combustion of the gasoline or the diesel oil is promoted, the combustion efficiency of the fuel oil is enhanced, the oil consumption is reduced, and the economical efficiency of the fuel oil is improved; and air pollution caused by emission of hydrocarbon or combustion intermediate products is reduced.

The present invention relates to a PAN fiber-based gold absorption material, a method of manufacturing the same, and a method of recovering gold using the same, which may implement an excellent gold absorbent property, excellent durability, excellent manufacturability, and excellent usability through a structure in which an alkylamine compound is immobilized on a polyacrylonitrile (PAN) fiber. The PAN fiber-based gold absorption material according to the present invention is provided to adsorb gold ions in water, which is configured to have a structure in which the alkylamine compound is immobilized on a PAN fiber surface.

An asphalt modifier includes bitumen, polyolefin particles, and one or more alkyl terephthalamides. Preparing an asphalt modifier includes combining one or more alkyl terephthalamides, polyolefin particles, and bitumen, and dispersing the polyolefin particles in the bitumen to yield the asphalt modifier. Digesting polyethylene terephthalate includes combining polyethylene terephthalate with an alkylamine or carboxyalkylamine to yield a reaction mixture, and heating the reaction mixture to a temperature between about 20° C. and about 300° C. to yield an alkyl terephthalamide.

The disclosure relates to compositions, including ready-to-use spray or wipe compositions, that are non-toxic, non-corrosive, biodegradable acidic antimicrobial compositions that exhibit broad-spectrum antimicrobial efficacy, wherein the compositions comprise an amine oxide, such as an alkyl amine oxide, in combination with an acidulant. Beneficially, the acidic antimicrobial compositions are capable of achieving at least a 3-log microbial reduction within 5 minutes under relatively mild pH conditions. The compositions provide cleaning and sanitizing.

The invention relates to the technical field of carbon dioxide capture, in particular to a method for preventing formation of nitramine in a carbon dioxide absorption process, which comprises the following steps: S1, selecting a proper amine solvent, and replacing traditional monoethanolamine (MEA) or diethanolamine (DEA) with an improved amine solvent, such as an amino acid salt solution or chain alkylamine; the performance of the solvent is optimized, and an amine solvent which is excellent in long-term stability, easy to regenerate and good in thermodynamic property is selected. By optimizing the operation temperature and pressure, the side reaction is inhibited to the maximum extent, each absorption tower section is finely controlled by adopting a sectional absorption process, and the nitramine generation risk is further reduced; through comprehensive application of a novel amine solvent and a nitramine inhibitor and a combined strategy for optimizing operation conditions, an efficient, stable and environment-friendly carbon dioxide absorption method is provided, the absorption capacity is improved, and the excellent solvent regeneration performance and by-product control capacity are further provided.

The invention relates to the technical field of coating additives, and particularly discloses a water-based flash-rust-resistant and salt-spray-resistant additive and a preparation method thereof. The invention relates to a water-based flash-rust-resistant and salt-spray-resistant additive, which is prepared from the following raw materials: 50 to 65 parts of ethylene diamine tetra (methylene phosphonic acid) sodium, 60 to 70 parts of N, N-dimethyl dodecyl amine, 20 to 40 parts of polydimethylsiloxane, 20 to 30 parts of nano calcium carbonate, 25 to 40 parts of modified rare earth salt solution and 30 to 50 parts of deionized water, the modified rare earth salt solution is obtained by carrying out complex reaction on 4-hydroxy-beta-dihydrodamascone and a rare earth salt solution. According to the water-based anti-flash-rust and salt-fog-resistant additive, the modified rare earth salt solution and the ferrous sulfate-zinc powder system are adopted, so that the anti-flash-rust performance of the additive under the high-temperature condition can be effectively improved.

The invention belongs to the field of biological refining of grease, and particularly relates to a grease degumming method based on a phospholipase micromotor reactor. The invention discloses an enzymatic degumming method of edible vegetable oil, algal oil and animal fat, which aims at the pain points of low degumming efficiency, long time consumption, easy enzyme inactivation and difficult recovery of the traditional enzymatic degumming, designs core-shell mesoporous silica microspheres, adopts an emulsion method to respectively graft alkyl and alkylamine on two sides of the microspheres, constructs a Janus carrier with asymmetric chemical environment, and improves the degumming efficiency of the edible vegetable oil, the algal oil and the animal fat. And immobilizing phospholipase A1, A2, B or C through physical adsorption to prepare the phospholipase micromotor reactor. In the degumming process, a micromotor cooperates with an interface activation-enhanced mass transfer-dynamic self-cleaning mechanism, self-driven movement in an interface micro-scale range is realized by virtue of a substrate concentration gradient, the enzyme activity and stability of phospholipase are remarkably improved, and efficient degumming of grease is realized. The method is high in oil yield, green in process and suitable for industrial popularization.

The present disclosure provides cellulose based adsorbents and their use in removing impurities from liquids, including water. The celluloses are alkylamine functionalized celluloses which may be contacted with a liquid, including water, to remove impurities therefrom.

To provide a topical composition with excellent adhesiveness to the skin.SOLUTION: A topical composition according to the present invention comprises (A) at least one polyhydric alcohol having a molecular weight of 100 to 200, and (B) at least one non-polymerizable cationic compound. The component (B) may be a compound containing a metal to be a divalent or higher cation in an aqueous solution, a basic amino acid, alkanol amine, or alkyl amine, and the component (A) may be glucose, sorbitol, fructose, xylitol, or erythritol.SELECTED DRAWING: None

A method of reducing the emission of NOx, nitrogen oxide and / or nitrogen dioxide, from a diesel engine, comprising dosing a nitrogen containing detergent into diesel fuel. The nitrogen containing dete

The present invention relates to the technical field of secondary battery energy storage, and in particular to a MoS2 / C composite material based on alkylamine intercalation and its preparation method and application, the method comprising: dispersing molybdate and thiourea in deionized water, adding hydrochloric acid, stirring and performing a first hydrothermal reaction; mixing the sample obtained by the first hydrothermal reaction with hydrochloric acid, adding an alkylamine compound, performing a second hydrothermal reaction, and obtaining a MoS2 / C precursor; drying and sintering the MoS2 / C precursor to obtain a MoS2 / C composite material. The composite material prepared by the preparation method of the present invention has a stable and reliable support structure, which can prevent the structural deterioration of molybdenum disulfide and significantly improve the conductivity of electrons. A double continuous channel is established between ions and electrons, which greatly solves the demand for efficient sodium ion storage.

A functionalized diene polymer having at least one first functional group and at least one second functional group, wherein the first functional group is selected from end groups, side groups, and combinations thereof, the second functional group is an end group, the first functional group comprises at least one unit derived from a functionalized monomer represented by formula (1) (wherein R1, R2, and R3 are selected from hydrogen and methyl, provided that at least one of R1, R2, and R3 is hydrogen, preferably R1, R2, and R3 are all hydrogen, n is 1, 2, 3, 4, or 5, each R4 is independently selected from aliphatic residues or arylaliphatic residues having 3 to 30 carbon atoms, and R4 contains at least one tertiary amine group when n = 1, and at least one of the residues R4 contains at least one tertiary alkylamine group when n = 2 to 5); or (ii) the first functional group is obtained by using a polymerization initiator of the general formula: N(R1)(R2)(R3M) (wherein R1 and R2 are the same or different from each other and are selected from linear or branched saturated alkyls, R3 is a saturated, linear or branched alkyl carbanion, and M is an alkali cation), the second functional group is an end group, and comprises at least one group selected from -COOX; -OX; -SX (wherein X represents hydrogen or a cation), a plurality thereof, and combinations thereof. Also provided are a method for producing the polymer, an article obtained from the polymer, and a method for producing an article with the polymer, wherein the functionalized diene polymer is a homopolymer or copolymer of a conjugated diene, and the conjugated diene is selected from the group consisting of butadiene, isoprene, isoprene, 1,3-pentadiene, 2,3-dimethylbutadiene, 1-phenyl-1,3-butadiene, 1,3-hexadiene, preferably butadiene.

The present invention relates to a process for producing a nitrile compound by chain extension of an alkyleneamine compound containing three or more amine units, wherein at least two amine units are protected by cyclic urea units and at least one amine unit is unprotected, by reacting the at least one unprotected amine unit with glycolonitrile or with a combination of formaldehyde and a cyanide selected from HCN and inorganic cyanide salts to add at least one acetonitrile group to the at least one unprotected amine unit. The process according to the invention allows the production of nitrile compounds with high selectivity and high yield. The nitrile compounds can be processed as required.

A firefighting foam concentrate that is free or substantially free of fluorosurfactants is disclosed. The firefighting foam concentrate comprises water and from 25% to 38% by weight of a surfactant blend comprising at least one selected cationic quaternary ammonium compound, at least one selected alkyl amine oxide nonionic surfactant, and at least one selected alkyl sulfate anionic surfactant. Each selected surfactant has an average alkyl or alkylene carbon chain length of 8-10 carbon atoms. The firefighting foam concentrate may be combined with other firefighting foam components to form a firefighting foam composition. Also disclosed is a method of fighting a fire comprising aerating the firefighting foam composition containing the surfactant blend to form a firefighting foam that is applied to a fire or the surface of a volatile flammable liquid.

Carbon is one of the most common elements in bioactive organic compounds. Theoretically, nearly all carbon-based organic functional groups can be labeled with 11C if an appropriate 11C-synthon is developed and utilized. Although there are various reports on developing PET agents based on alkyl [11C]nitriles, efficient and facile cyanation of arenes with radioisotope-containing reagents, particularly electron-rich arenes, still requires further improvements. The organic photoredox-catalyzed cyanation method reported herein introduces a [11C]nitrile quickly with high radiochemical conversion (RCC) in a metal-free manner, which can also be further diversified to other functional groups such as [11C]carboxylic acids, [11C]amides, and [11C]alkyl amines.

The invention discloses an acceptor material containing a part of fluorinated side chain aza fused ring as well as a preparation method and application of the acceptor material. The structural general formula of the acceptor material containing the part of fluorinated side chain aza fused ring is as shown in formula I, wherein R1 and R2 are selected from C1-C30 part of fluorinated alkyl; and EG1 and EG2 are any one of cyano indanone compounds. The preparation method comprises the following steps: carrying out Schpeller coupling reaction on a compound 1 and a compound 2 to obtain a coupling compound 3; the compound 3 and alkylamine R2NH2 are subjected to a Buchwald-Hartwig ring closing reaction, and a fused ring compound 4 is obtained; the compound 4 is subjected to a vilchmidt-hauck hydroformylation reaction to obtain a compound 5; the compound 5 and a terminal group EG are subjected to a Knoevenagel condensation reaction to obtain a final acceptor material. The acceptor material with the near-infrared absorption function is prepared, the spectrum capture range of an organic solar cell is widened, and the performance of a laminated device and a semitransparent device can be improved. Formula I.

The invention discloses a flotation collecting agent formula based on quartz, a preparation method and an extraction method. The flotation collecting agent formula comprises a cation collecting agent and an anion collecting agent which are used in cooperation. Wherein the cation collecting agent is prepared from the following components in parts by weight: 10 to 40 parts of dodecyl amine, 10 to 40 parts of coconut oil alkylamine, 2 to 8 parts of dodecyl trimethyl ammonium chloride, 1 to 4 parts of a nonionic surfactant, 2 to 8 parts of ethanol and 5 to 10 parts of hydrochloric acid; the anion collecting agent comprises a sulfonate surfactant; the use of hydrofluoric acid is greatly reduced, fluorine pollution is reduced, the anionic collector and the cationic collector are compounded to play a synergistic role, implementation can be carried out under the weak acid condition, agent preparation and process control are simple and convenient, the agent dispersity is good, temperature and ore property fluctuation can be adapted, the flotation selectivity and recovery rate of quartz and feldspar can be remarkably improved, and the flotation efficiency is improved. The resource utilization value of the tailings is improved.

The invention relates to the technical field of organic liquid hydrogen storage, and discloses an organic liquid hydrogen storage method and an organic liquid hydrogen storage continuous production system.The organic liquid hydrogen storage method comprises the steps that 1, in the presence of an alkylation catalyst, carbazole makes contact with an alkylation reagent for an alkylation reaction, and mixed hydrogen oil is obtained; wherein the alkylating reagent comprises first alkylamine and second alkylamine; the structural general formula of the first alkylamine is represented as R1nNH3-n, n is an integer selected from 1-3, and R1 is selected from C3-C6 straight-chain or branched-chain alkyl; the structural general formula of the second alkylamine is R2mNH3-m, m is an integer selected from 1-3, R2 is selected from C1-C4 linear or branched alkyl, and the number of carbon atoms of R2 is smaller than that of R1; and (2) in the presence of a hydrogenation catalyst, contacting the mixed hydrogen oil with hydrogen for hydrogenation reaction. The method can realize continuous hydrogen storage of the organic liquid, and is high in hydrogenation rate and low in energy consumption.

The invention relates to the field of surfactants, and discloses a preparation method of a novel kitchen oil stain cleaning surfactant, which comprises the following steps: S1, selecting dodecyl amine and ethylene oxide as raw materials, and adding into a reaction kettle; s2, adding a neutralizing agent to prepare an intermediate dodecyl amine dipolyoxyethylene ether; s3, adding dodecyl amine dipolyoxyethylene ether and chloromethane into a reaction kettle, and then adding a medium solvent to obtain N-dodecyl methyl dipolyoxyethylene ether ammonium chloride; s4, adding N-dodecyl methyl dipolyoxyethylene ether ammonium chloride and potassium hydroxide into absolute ethyl alcohol; and S5, after the reaction is finished, filtering and evaporating the solution at a low temperature to obtain the N-dodecyl methyl dipolyoxyethylene ether ammonium hydroxide. According to the invention, dodecyl amine is combined with an oxyethylated hydrophilic group, so that the obtained product has the properties of cationic and nonionic surfactants at the same time, and the complexity of compounding of multiple surfactants is avoided.

The present invention provides functionalized molybdenum disulfide nanosheets and a preparation method and application thereof. The preparation method comprises the following steps: mixing a solvent, 1 part by weight of thioctic acid, and 5 to 10 parts by weight of a first compound for 2 to 4 hours to obtain a mixture; adding 0.05 to 0.1 parts by weight of 1-hydroxybenzotriazole to the mixture, mixing for 24 to 48 hours, and drying to obtain an intermediate product; and ultrasonically treating or heat-treating the raw material-solution system to obtain the functionalized nanosheets, wherein the raw material-solution system comprises 5 to 10 parts by weight of molybdenum disulfide nanosheets, 1 part by weight of the intermediate product, and brine; and the first compound comprises an oxirane group and an alkylamine chain, wherein the alkylamine chain has 12 to 18 carbon atoms and the oxirane group has 2 to 15 carbon atoms. A nanofluid prepared from the functionalized molybdenum disulfide nanosheets can reduce oil / water interfacial tension, has good stability, significantly improves the recovery rate of low-permeability oil reservoirs, and reduces costs.

The present invention provides a substrate processing liquid for etching silicon oxide on a substrate, the substrate processing liquid containing (a) hydrogen fluoride and (b) a monoalkylamine or a monoalkylamine salt. The amount of the hydrogen fluoride is 10 wt% or less, the amount of the monoalkylamine or monoalkylamine salt is 0.0001 wt% to 0.1 wt%, and the monoalkylamine or monoalkylamine salt has a linear alkyl group having 12 to 14 carbon atoms. The substrate processing liquid can efficiently form a narrow space by etching.

This invention provides a method for synthesizing high-purity tungsten complexes, relating to the field of chemical synthesis technology. Under a nitrogen atmosphere, tungsten hexachloride and an alkane solvent are added to a reaction vessel, the temperature is lowered to 0°C, tert-butylamine is added dropwise, the mixture is brought back to room temperature with stirring, filtered, and washed to obtain a filtrate. Trimethylchlorosilane is added dropwise to the filtrate, the reaction is heated, and after returning to room temperature, pyridine is added dropwise. The reaction yields (…). t The intermediate BuN)2WCl2(py)2 is synthesized by adding toluene and dialkylamine. After reaction, the mixture is filtered, washed, the solvent is evaporated, and then distilled to obtain a high-purity tungsten complex. By optimizing the reaction conditions and raw material ratio, the synthesis method of this invention significantly improves the yield of the high-purity tungsten complex. Compared with the prior art, it effectively reduces the waste of raw materials, improves production efficiency, and successfully achieves a product metal purity of 5N, meeting the stringent requirements of the semiconductor field for product metal purity and helping to improve the performance and quality of subsequent application products.

The invention belongs to the technical field of antirust agents, and particularly relates to an imidazoline derivative as well as a preparation method and application thereof. The structural general formula of the imidazoline derivative is shown in the specification, and in the structural general formula, R1 is C10-C21 straight-chain alkyl, R2 is-C2H4NHCH2-, and R3 is C12-C18 straight-chain alkyl. The preparation method comprises the following steps: adding fatty primary amine into beta-ketoglutaric acid, and reacting to obtain an intermediate; adding alkyl amine ethyl imidazoline into the intermediate, simultaneously adding an aldehyde compound and a solvent, reacting at 120-140 DEG C for 3-5 hours, and carrying out reduced pressure distillation and filtration to obtain a target product. The imidazoline derivative disclosed by the invention has excellent oil solubility, anti-rust performance and antifriction performance.

The invention relates to a co-production preparation method of dialkyl phosphate and tetraalkyl ammonium sulfate, which comprises the following steps: trialkyl phosphate and trialkylamine are subjected to a first reaction at a first temperature, then a reaction system and excessive sulfuric acid are subjected to a second reaction at a second temperature in the presence of water, and the first temperature is higher than the second temperature; after the reaction is finished, adding an extracting agent to extract the system, and separating to obtain an organic phase and a water phase; removing the extracting agent in the organic phase to obtain dialkyl phosphate; adding tetraalkyl ammonium hydroxide into the water phase until the water phase is neutral or nearly neutral to obtain a water solution containing tetraalkyl ammonium sulfate. According to the method, the dialkyl phosphate can be obtained, the tetraalkyl ammonium sulfate salt with high added value can be obtained, the raw materials are easy to obtain, the process route is simple, the atom economy is high, the method is environment-friendly, the operation is simple, and the cost is low.

The present invention relates to an isoindoline compound containing a phenylethoxyalkyleneamine structure, a conjugate thereof, and use thereof. The isoindoline compound containing a phenylethoxyalkyleneamine structure has a structure represented by formula (I). The conjugate thereof has a structure represented by formula (B). The compound of the present invention exhibits increased proliferation inhibition activity for cancer cells and a degradation effect on proteins such as GSPT1, demonstrating practical values.

The present invention discloses an oil displacement agent based on sheet-like particulate materials, its preparation method and application. The oil displacement agent includes amphiphilic graphene-like nanosheets and an amphiphilic graphene-like nanosheet dispersion system. The amphiphilic graphene-like nanosheets include graphene-like nanosheet synthesis raw materials and alkylamine monomers. The amphiphilic graphene-like nanosheet dispersion system includes surfactants. The oil displacement agent of the present invention has the characteristics of small size, large specific surface area, and interfacial activity, has good dispersion performance in water, and can be used as a solid particulate surfactant. The method is simple and easy to implement, can achieve mass production, and can regulate its amphiphilicity by adjusting the types of modified reactants or the ratio of the two reactants. The oil displacement agent of the present invention can produce a synergistic effect alone or in combination with traditional surfactants, and has good properties of stripping and emulsifying oil droplets and an oil displacement effect.