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146 results about "Branched alkane" patented technology
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High octane number gasolines and their production using a process associating hydro-isomerization and separation
InactiveUS6338791B1Minimize cracksReduce the amount requiredRefining to change hydrocarbon structural skeletonHydrocarbon by hydrogenationCyclic alkaneIsomerization
The invention provides a high octane number gasoline pool comprises at least 2% of di-branched paraffins containing 7 carbon atoms, and a process for producing this gasoline pool by hydro-isomerizing a feed constituted by a C5 to C8 cut which comprises at least one hydro-isomerization section and at least one separation section, in which the hydro-isomerization section and at least one separation section, in which the hydro-isomerization section comprises at least one reactor. The separation section comprises at least one unit and produces at least two streams: a first stream which is rich in di- and tri-branched paraffins, and possibly in naphthenes and aromatic compounds which is sent to the gasoline pool; and in a first version of the process, a second stream is produced which is rich in straight-chain and mono-branched paraffins which is recycled to the inlet of the hydro-isomerization section, while in a second version of the process, a second flux is produced which is rich in straight-chain paraffins which is recycled to the inlet of a first hydro-isomerization section and a third stream is produced which is rich in mono-branched paraffins which is recycled to the inlet of a second hydroisomerization section.
Owner:INST FR DU PETROLE
Process for the manufacture of quinoline derivatives
Owner:ACTIVE BIOTECH AB
Catalysis systems for preparing highly branched alkane by using olefin
The present invention discloses a class of catalysis systems for preparing highly branched alkanes by using olefins. The catalysis systems comprise a class of novel nickel complexes and palladium complexes. With effects of the catalysis systems, only mild conditions are required to efficiently obtain oily highly branched alkane mixtures by using ethylene and other olefins, wherein the alkane mixtures have a low bromine value, and can be used for processing aids, and high-performance base oil of lubricants,. The present invention further provides a preparation method for catalysts, and a preparation method for oily olefin polymers.
Owner:NANJING CHEMRUN CO LTD +1
Preparation method for mesoporous-microporous composite hydroisomerization dewaxing catalyst
InactiveCN106513035ALow pour pointHigh viscosity indexMolecular sieve catalystsHydrocarbon oils refiningDispersityWax
The invention discloses a preparation method for a mesoporous-microporous composite hydroisomerization dewaxing catalyst. The invention relates to a mesoporous-microporous composite molecular sieve. The composite molecular sieve with a core-shell structure is formed by compounding with microporous ZSM-23 as a core and a mesoporous molecular sieve MCM-41 or SBA-15 as a shell in a manner of eutecticuming, wherein internal and external proportions and acidity of the molecular sieve are adjustable. The hydroisomerization dewaxing catalyst prepared by using the composite molecular sieve with the core-shell structure as a carrier through an excessive impregnation method has moderate acidity, can adjust the relative content of the composite molecular sieve in the catalyst according to the needs for acidity, has high noble metal dispersity, and is especially applicable to hydroisomerization reactions of long-chain n-alkanes and raw materials with high wax content. The obtained lubricant base oil has low pour point and high yield, and shows high isomerization reaction activity and selectivity, wherein the isomeric selectivity is larger than 93% on the premise that the conversion rate is 97%, and especially, the isomeric selectivity of multi-branched alkanes is significantly increased and is larger than 58%. The preparation method provided by the invention has the advantages of simple operation and good reproducibility.
Owner:CHINA NAT OFFSHORE OIL CORP +2
Process for producing copper nanoparticles
ActiveUS20060053972A1Improve stabilityGood dispersionMaterial nanotechnologyTransportation and packagingHydrazine compoundReducing agent
The present invention provides a process for producing copper nanoparticles, comprising steps of: a) reacting an aqueous solution containing a reductant with an aqueous solution of a copper salt while stirring for 1-8 min, wherein the reductant being one or more selected from a group consisting of hydrazine hydrate, sodium borohydride and sodium hypophosphite; b) adding an apolar organic solution containing the extracting agent and continuing the stirring for 0.5-1.5 hrs, said extracting agent being one or more selected from the group consisting of alkyl dithiocarbonic acid and salts thereof, O,O′-dialkyl dithiophosphoric acid and salts thereof, and dialkylamino dithioformic acid and salts and said apolar organic solution being one selected from the group consisting of benzene, toluene and straight or branched alkanes having 6-12 carbon atoms, wherein the alkyl having 6-20 carbon atoms; and c) post-treating the reaction product to obtain copper nanoparticles.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Azo type heterocyclic blue dispersion dyes
The invention provides a class of heterocyclic blue disperse dye and mixed dyes thereof, wherein the general formula of the dye is the formula at right, in the general formula: R1 is hydrogen, C1-4alkyl or C1-4alkoxy; R2, R4 is C1-4 saturated linear or branched alkane; R2 and R4 are the same or different; R3 is hydrogen, hydroxy, C1-4 alkoxy, or phenoxy; R5 is hydrogen, C1-4alkoxy, cyanoethyl or phenoxy; R3 and R5 are the same or different. The preparation of the dye includes that heterocyclic diazo component is diazotized, followed by reaction with different coupling components to get brilliant blue disperse dye. The dye can have a single structure, and also be the dye with mixed structure directly prepared. The class of dyes can give rich and deep color and has high lifting force, and good dye-uptake property, which has the same results of brilliant color light for polyester cellulose dying in acid or basic dye bath. The invention also can dye polyamide, polyurethane and cellulose acetate, and ultra-fine and blended fabric thereof.
Owner:ZHEJIANG HUIDELONG CHEM
Isomerization process with adsorptive separation
ActiveUS7514590B1Increased branchingHydrocarbon by isomerisationHydrocarbon by hydrogenationIsomerizationHydrogen
Isomerization of a feedstream comprising C5 to C6 hydrocarbons involving charging hydrogen and the feedstream into an isomerization zone to contact an isomerization catalyst at isomerization conditions and increase the branching of the feedstream hydrocarbons to produce an isomerization effluent stream has been discovered. Without passing through a stabilizer, the isomerization effluent is passed through a product separator and a flash drum and then to an adsorptive separation zone to generate a raffinate stream enriched in branched alkanes, an extract stream enriched in normal alkanes, and at least one light ends stream. Within the adsorptive separation zone, the raffinate and the extract streams are each passed through a fractionator remove light ends and desorbent. The desorbent is recycled to the adsorptive separation zone. The remainder of the extract stream is recycled to the isomerization zone and the remainder of the raffinate stream is collected.
Owner:UOP LLC
C7-C10 n-alkane isomerization catalyst and preparation method thereof
ActiveCN102107142AImprove liquid yieldHigh activityHydrocarbon by isomerisationMolecular sieve catalystsPlatinumIsomerization
The invention discloses a C7-C10 n-alkane isomerization catalyst which comprises a composite carrier and 0.05-3.0% of platinum by mass based on carrier, wherein the composite carrier comprises 20-70% of MCM-41 molecular sieve by mass, 10-35% of phosphotungstic acid by mass and 10-50% of aluminum oxide by mass. The catalyst is used for the isomerization reaction of the C7-C10 n-alkane, and has relatively high isomerization activity, high product liquid yield and relatively high selectivity of highly branched alkane.
Owner:CHINA PETROLEUM & CHEM CORP +1
Emollient mixture for cosmetic and pharmaceutical formulations
ActiveUS20050079986A1Promote absorptionCosmetic preparationsToilet preparationsPharmaceutical formulationCarbonate
The invention relates to a water-free oil-based composition which is liquid at 20° C. / normal pressure and which contains (a) 2 to 90% by weight of at least one linear and / or branched dialkyl carbonate and (b) 2 to 95% by weight of at least one linear and / or branched alkane containing 8 to 40 carbon atoms and to its use in the cosmetics field.
Owner:COGNIS DEUT GMBH & CO KG
Catalytic conversion of cellulose to liquid hydrocarbon fuels by progressive removal of oxygen to facilitate separation processes and achieve high selectivities
Described is a method to make liquid chemicals, such as functional intermediates, solvents, and liquid fuels from biomass-derived cellulose. The method is cascading; the product stream from an upstream reaction can be used as the feedstock in the next downstream reaction. The method includes the steps of deconstructing cellulose to yield a product mixture comprising levulinic acid and formic acid, converting the levulinic acid to γ-valerolactone, and converting the γ-valerolactone to pentanoic acid. Alternatively, the γ-valerolactone can be converted to a mixture of n-butenes. The pentanoic acid so formed can be further reacted to yield a host of valuable products. For example, the pentanoic acid can be decarboxylated yield 1-butene or ketonized to yield 5-nonanone. The 5-nonanone can be hydrodeoxygenated to yield nonane, or 5-nonanone can be reduced to yield 5-nonanol. The 5-nonanol can be dehydrated to yield nonene, which can be dimerized to yield a mixture of C9 and C18 olefins, which can be hydrogenated to yield a mixture of alkanes. Alternatively, the nonene may be isomerized to yield a mixture of branched olefins, which can be hydrogenated to yield a mixture of branched alkanes. The mixture of n-butenes formed from γ-valerolactone can also be subjected to isomerization and oligomerization to yield olefins in the gasoline, jet and Diesel fuel ranges.
Owner:WISCONSIN ALUMNI RES FOUND
Eleostearic acid ester alkylated compound containing phenolic hydroxyl, and preparation method and application of eleostearic acid ester alkylated compound
ActiveCN105254499AIncrease added valuePositive reference valueNon-macromolecular adhesive additivesOrganic compound preparationOrganic synthesisPrinting ink
The invention belongs to the field of organic synthesis, and specifically discloses an eleostearic acid ester alkylated compound containing a phenolic hydroxyl, and a preparation method and the application of the eleostearic acid ester alkylated compound. The eleostearic acid ester alkylated compound containing the phenolic hydroxyl is of a structure showed in a formula (1) and a formula (2) which are as shown in the description; in the formula (1) and the formula (2), R1 and R3 are straight-chain or branched-chain alkyls ranging from C1 to C4, and R2 and R4 are one or several of H, Cl, CH3, -OH, -OCH and -C(CH3)3. According to the eleostearic acid ester alkylated compound containing the phenolic hydroxyl, disclosed by the invention, the region selectivity and the alkylation degree of an eleostearic acid ester alkylation reaction can be regulated and controlled through acidic ionic liquid and the like, so that a target product can be obtained, and the prepared eleostearic acid ester alkylated compound containing the phenolic hydroxyl can be applied to the aspects of water-based UV (Ultraviolet) curing coating, water-based UV curing printing ink, water-based UV curing adhesive and the like.
Owner:SOUTH CHINA AGRI UNIV
Straight-chain lightweight alkane isomerization catalyst, and preparation method and application thereof
ActiveCN103301835AReduce manufacturing costHigh selectivityHydrocarbon by isomerisationMetal/metal-oxides/metal-hydroxide catalystsIsomerizationMass ratio
The invention relates to a straight-chain lightweight alkane isomerization catalyst, and a preparation method and an application thereof. The catalyst comprises a composite macroporous alumina carrier and 0.01-2.0% of platinum by mass calculated with the carrier as a reference. The composite macroporous alumina carrier comprises, by mass, calculated with the carrier as a reference, 5-45% of aluminum sol, 50-90% of macroporous alumina, and hydrochloric acid added according to a mass ratio of Al2O3 in the macroporous alumina to HCl of 15-200; kneading, strip extrusion forming and drying are carried out, and the material is roasted for 0.5-6h under a temperature of 400-700 DEG C; the material is then impregnated for 1-30h by using chloroplatinic acid according to a platinum load; the material is dried, and is roasted for 0.5-6h under a temperature of 400-700 DEG C, such that the catalyst is prepared. An Al / Cl molar ratio of the aluminum sol is 0.9-1.4. The volume of the macroporous alumina is 1.0-1.8ml / g. The catalyst is suitable for a straight-chain lightweight alkane isomerization reaction, and has good mechanical strength and catalytic activity. The catalyst has the advantages of high product liquid yield and high multi-branched alkane selectivity. The catalyst can be used for improving light hydrocarbon component octane number.
Owner:REZEL CATALYSTS CORP
Catalyst used for isomeric pour point depression of middle distillate in F-T synthesis and special core-shell structure composite molecular sieve of catalyst
ActiveCN105032478AHigh selectivityHigh isomer selectivityMolecular sieve catalystsHydrocarbon oils refiningCore shellMCM-41
The invention provides a catalyst used for isomeric pour point depression of middle distillate in F-T synthesis and a special core-shell structure composite molecular sieve of the catalyst. The composite molecular sieve takes a microporous ZSM-22 molecular sieve as a core and takes a mesoporous MCM-41 molecular sieve as a shell, wherein a relative proportion of the microporous ZSM-22 molecular sieve to the mesoporous MCM-41 molecular sieve is adjustable. A preparation method for the composite molecular sieve comprises the steps of: firstly, preparing the ZSM-22 molecular sieve; then, adding alkaline and an organic template agent into a mixed system containing the ZSM-22 molecular sieve for pre-crystallization; and regulating the pH value to 6.5-13.5, and carrying out crystallization treatment, thereby obtaining the composite molecular sieve. The catalyst, which is prepared by taking the core-shell structure ZSM-22 / MCM-41 composite molecular sieve as a carrier, is applied to hydroisomerization reaction of the middle distillate in F-T synthesis, and shows high isomeric selectivity; and especially, highly branched alkane selectivity is obviously improved. In the case that the conversion rate is 91.4%, the isomeric selectivity is kept to be higher than 90%, and the highly branched isomeric selectivity reaches 55.6%.
Owner:SYNFUELS CHINA TECH CO LTD
Method and catalysts for the epoxidation of olefinic compounds in the presence of oxygen
The invention relates to a method for the epoxidation of an olefinic compound, which is characterised in that it comprises an oxidation reaction of at least one olefinic compound containing one or more double bonds C=C with oxygen in the presence of one or more reaction initiating agents, at least one catalyst containing at least one metal that is selected from a noble metal, a transition metal and mixtures of same, and at least one hydrocarbon that is selected from one or more branched alkanes, one or more alkyl cyclic or cyclic hydrocarbons, one or more alkyl aromatic or aromatic compounds and mixtures of same.
Owner:CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC) +1
Preparation method of branched paraffin in range of gasoline, aviation kerosene or diesel
ActiveCN107304367AThe synthetic route is simpleEfficient synthetic routeLiquid hydrocarbon mixture productionBio-feedstockAlkaneAviation
The invention relates to a preparation method of branched paraffin in a range of gasoline, aviation kerosene or diesel. The preparation method mainly comprises two parts: (1) carrying out self-condensation reaction on a biomass ABE fermentation product on a first catalyst bed layer of a fixed bed continuous reactor under the catalysis of an acid / alkali catalyst or metal doped solid alkali, so as to obtain a C6-C21 oxygen-containing organic compound; and (2) further carrying out hydrodeoxygenation reaction on a product of the first fixed bed continuous reactor on a second fixed bed continuous reactor at a relatively low temperature and a solvent-free condition under the catalysis of a metal-loaded A / X type bifunctional catalyst, so as to obtain C6-C21 branched paraffin in the range of gasoline, aviation kerosene or diesel. The branched paraffin, namely a liquid fuel can be used as a potential substitute of existing gasoline, aviation kerosene or diesel.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Preparation method for branched alkanes in range of gasoline, aviation kerosene and diesel oil
ActiveCN107794074AThe synthetic route is simpleEfficient synthetic routeOrganic compound preparationHydroxy compound preparationKeroseneMineral flotation
The invention relates to a preparation method for branched alkanes in a range of gasoline and aviation kerosene and biomass-based fatty alcohols. The method comprises the following two parts: (1) on afirst catalyst bed layer of a fixed-bed continuous reactor, methyl isobutyl ketone is subjected to a self-condensation reaction under catalysis of an acid catalyst, a base catalyst, a metal-doped solid acid catalyst, or a metal-doped solid base catalyst, so that an oxygen-containing organic compound with a carbon atom number of 12 is obtained; and (2) on a second catalyst bed layer of the fixed-bed continuous reactor, the generated product of the first catalyst bed layer and un-reacted raw materials are subjected to a one-step hydrodeoxygenation reaction under catalysis of a supported metal A / X-type bifunctional catalyst and conditions of a relatively high temperature and no solvents, and therefore the branched alkanes with carbon atom number of 6 and 12 in the range of the gasoline and the aviation kerosene are obtained. According to the invention, the saturated alcohols with a carbon atom number of 6 can be used as mineral flotation agents, and the saturated alcohols with a carbon atom number of 12 can be used for synthesis of biomass-based surfactants and the like.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Beta-ketone enamine chiral COFs (covalent organic frameworks) as well as preparation method and application of bonded capillary gas chromatographic column prepared from same
ActiveCN109999756AImprove thermal stabilityLarge specific surface areaOther chemical processesSolid sorbent liquid separationCapillary gas chromatographyEnamine
The invention discloses beta-ketone enamine chiral COFs (covalent organic frameworks) as well as a preparation method and an application of a bonded capillary gas chromatographic column prepared fromthe same. The beta-ketone enamine chiral COFs have advantages of high thermal stability, large specific surface area and uniform pore diameter distribution and can be applied to chiral recognition andseparation. The beta-ketone enamine chiral COFs and the bonded beta-ketone enamine chiral COFs capillary column prepared from the same can realize separation of mixed components of straight-chain paraffin and branched paraffin or mixed components of ethylbenzene and styrene and have good application prospects.
Owner:SOUTH CHINA NORMAL UNIVERSITY
Unsaturated vegetable oil alkylates based on UV photocatalytic reaction and preparation method thereof
ActiveCN106146307AIncrease added valuePositive reference valuePreparation by ester-hydroxy reactionOrganic compound preparationVegetable oilPhotocatalytic reaction
The invention belongs to the technical field of UV photocatalytic chemistry and discloses unsaturated vegetable oil alkylates based on UV photocatalytic reaction and a preparation method thereof. The alkylates have one of structures shown in following formulas (1) and (2), wherein R1 is C-C4 linear or branched alkane groups, R2 is at least one of -H, -Cl, -CH3, -OH, -OCH3, -C(CH3)3 and the like, n is equal 0 or 1, m is greater than 1, with 6<l+m+s+t<16, and R3 is at least one of -OH, -CH3, -COOH and the like, with a=1 or 2, 0<b<6, c=0 or 1 and d=0 or 1. Analogs with urushiol structure are synthesized by using UV photo-initiated vegetable oil acylation, reaction conditions are mild, reaction time is short, and various vegetable oil acrylates can be acquired without the conditions such as high temperature and high pressure.
Owner:SOUTH CHINA AGRI UNIV
Catalytic system for preparation of high branched alkane from olefins
ActiveUS20140088319A1Hydrocarbon purification/separationNickel organic compoundsBromine numberBase oil
Owner:NANJING CHEMRUN CO LTD
Gasoline prepared from biomass-derived levulinic acid
The present invention provides methods for preparing a C6-C10 alkane, and mixture thereof. The methods include forming a reaction mixture containing an angelica lactone dimer, a catalyst, and a hydrogen source under conditions sufficient to reduce the angelica lactone dimer, thereby preparing the alkane. The methods can be used to prepare branched alkanes useful for fuels. Methods for preparing an angelica lactone, methods for preparing an angelica lactone dimer, and methods for reducing a lactone to an alkane are also described.
Owner:RGT UNIV OF CALIFORNIA
Electrolyte additive, application and non-aqueous electrolyte containing additive
InactiveCN112531210AImprove high temperature cycle performanceImprove high temperature storage performanceSecondary cellsOrganic electrolytesElectrolytic agentAqueous electrolyte
The invention relates to an electrolyte additive, an application thereof and a non-aqueous electrolyte containing the additive. The electrolyte additive contains an unsaturated cyclic phosphate compound. The unsaturated cyclic phosphate compound is selected from at least one of compounds with a structure as shown in a formula I, wherein R is respectively selected from C1-C5 straight-chain or branched-chain alkane, C1-C10 straight-chain or branched-chain unsaturated alkyl (including alkylene, alkyne and aryl), or alkyl containing C1-C5 straight-chain or branched-chain substituted by halogen. According to the electrolyte additive and the electrolyte using the additive provided by the invention, the electrolyte can solve the main problems faced by a lithium ion battery when the lithium ion battery is used under an extreme condition, and the high-temperature cycle performance and the high-temperature storage performance of the battery are remarkably improved.
Owner:TIANJIN ENERGIES
A method for preparing aviation kerosene by hydrodeoxygenation of furyl oxygen-containing organic compounds
ActiveCN104119943BReduce energy consumptionSimple operation processMolecular sieve catalystsLiquid hydrocarbon mixture productionFuranKerosene
The present invention relates to a kind of C obtained by carbon-carbon coupling of lignocellulose-based platform compound 8 -C 16 A new method for preparing aviation kerosene range hydrocarbons through hydrodeoxygenation reaction of furyl oxygen-containing organic compounds as raw materials. The low-temperature direct hydrodeoxygenation of furanyl oxygen-containing organic compounds under solvent-free conditions was realized by using a metal-solid acid bifunctional catalyst, and a series of branched alkanes with low freezing points in the range of aviation kerosene chain lengths were obtained in high yield. This type of catalyst is composed of active metal A and acid carrier X. The catalyst involved in the present invention has the characteristics of no solvent, simple operation process, mild reaction conditions, good selectivity of aviation kerosene (or diesel oil), etc., and is an ideal method for preparing liquid fuel by hydrodeoxygenation of furan-based oxygen-containing organic compounds. Hydrodeoxygenation catalyst.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Production method of bright stock with low pour point and high viscosity
ActiveCN104449841ATreatment with hydrotreatment processesHydrocarbon oils treatment productsNaphthaSide chain
The invention relates to a production method of a bright stock with low pour point and high viscosity. Naphthenic light deasphalted oil (pour point greater than or equal to 0 DEG C and 100 DEG C kinematic viscosity greater than or equal to 60 mm<2> / s) is used as a raw material, hydroisomerization technology is employed to isomerize the alkane molecules with high pour point in crude oil or cycloalkane with long side chain alkane into branched alkane with low pour point or cycloalkane with branched alkanes, and lubricating oil fraction in the crude oil is maintained, so as to reach the purposes of yield increase of bright stock with low pour point ( no more than -18 DEG C) and high viscosity (100 DEG C kinematic viscosity no less than 28 mm<2> / s) and combined production of high-quality naphtha and cleaning intermediate distillate oil. The invention has the characteristics of flexible device operation, high yield of bright stock, low pour point, high viscosity and high viscosity index.
Owner:PETROCHINA CO LTD
C7-C10 n-alkane isomerization catalyst and preparation method thereof
ActiveCN102107142BImprove liquid yieldHigh activityHydrocarbon by isomerisationMolecular sieve catalystsPlatinumIsomerization
The invention discloses a C7-C10 n-alkane isomerization catalyst which comprises a composite carrier and 0.05-3.0% of platinum by mass based on carrier, wherein the composite carrier comprises 20-70% of MCM-41 molecular sieve by mass, 10-35% of phosphotungstic acid by mass and 10-50% of aluminum oxide by mass. The catalyst is used for the isomerization reaction of the C7-C10 n-alkane, and has relatively high isomerization activity, high product liquid yield and relatively high selectivity of highly branched alkane.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method of branched alkane
InactiveCN110590489AReduce generationMild reaction conditionsOrganic compound preparationHydroxy compound preparationOrganic synthesisSilanes
The invention provides a preparation method of branched alkane, and belongs to the technical field of organic synthesis. The preparation method of the branched alkane comprises the following steps: mixing pinacolone, an alkyl metal reagent and an organic solvent under the condition of a protective atmosphere, performing an alkylation reaction so as to obtain an alkyl alcohol intermediate, mixing the alkyl alcohol intermediate, alkyl silane, an acid catalyst and an organic solvent under the condition of a protective atmosphere, and then performing an elimination reduction reaction so as to obtain the branched alkane. Pinacolone is adopted as a raw material, the alkyl metal reagent is applied to the alkylation reaction so as to obtain the corresponding alkyl alcohol intermediate, the alkyl silane is adopted as a reducing agent of the alkyl alcohol intermediate, and the elimination reduction reaction is performed in the presence of the acid catalyst so as to synthesize the branched alkane. The method has a simple synthesis route, high yield of branched alkane, high purity, no use of expensive catalysts, low raw material cost and simple operation, and is suitable for scale-up and industrial production.
Owner:DALIAN CHEMPHY CHEM
Method and catalysts for the epoxidation of olefinic compounds in the presence of oxygen
The invention relates to a method for the epoxidation of an olefinic compound, which is characterised in that it comprises an oxidation reaction of at least one olefinic compound containing one or more double bonds C═C with oxygen in the presence of one or more reaction initiating agents, at least one catalyst containing at least one metal that is selected from a noble metal, a transition metal and mixtures of same, and at least one hydrocarbon that is selected from one or more branched alkanes, one or more alkyl cyclic or cyclic hydrocarbons, one or more alkyl aromatic or aromatic compounds and mixtures of same.
Owner:CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC) +1
A kind of alkylated compound containing phenolic hydroxyl oleic acid ester and its preparation method and application
ActiveCN105254499BIncrease added valuePositive reference valueNon-macromolecular adhesive additivesOrganic compound preparationAlkyl transferWater based
The invention belongs to the field of organic synthesis, and specifically discloses an eleostearic acid ester alkylated compound containing a phenolic hydroxyl, and a preparation method and the application of the eleostearic acid ester alkylated compound. The eleostearic acid ester alkylated compound containing the phenolic hydroxyl is of a structure showed in a formula (1) and a formula (2) which are as shown in the description; in the formula (1) and the formula (2), R1 and R3 are straight-chain or branched-chain alkyls ranging from C1 to C4, and R2 and R4 are one or several of H, Cl, CH3, -OH, -OCH and -C(CH3)3. According to the eleostearic acid ester alkylated compound containing the phenolic hydroxyl, disclosed by the invention, the region selectivity and the alkylation degree of an eleostearic acid ester alkylation reaction can be regulated and controlled through acidic ionic liquid and the like, so that a target product can be obtained, and the prepared eleostearic acid ester alkylated compound containing the phenolic hydroxyl can be applied to the aspects of water-based UV (Ultraviolet) curing coating, water-based UV curing printing ink, water-based UV curing adhesive and the like.
Owner:SOUTH CHINA AGRI UNIV
Process for producing copper nanoparticles
ActiveUS7422620B2Improve stabilityGood dispersionMaterial nanotechnologyTransportation and packagingHydrazine compoundNuclear chemistry
The present invention provides a process for producing copper nanoparticles, comprising steps of: a) reacting an aqueous solution containing a reductant with an aqueous solution of a copper salt while stirring for 1-8 min, wherein the reductant being one or more selected from a group consisting of hydrazine hydrate, sodium borohydride and sodium hypophosphite; b) adding an apolar organic solution containing the extracting agent and continuing the stirring for 0.5-1.5 hrs, said extracting agent being one or more selected from the group consisting of alkyl dithiocarbonic acid and salts thereof, O,O′-dialkyl dithiophosphoric acid and salts thereof, and dialkylamino dithioformic acid and salts and said apolar organic solution being one selected from the group consisting of benzene, toluene and straight or branched alkanes having 6-12 carbon atoms, wherein the alkyl having 6-20 carbon atoms; and c) post-treating the reaction product to obtain copper nanoparticles.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Unsaturated vegetable oil alkylate and preparation method based on uv photocatalytic reaction
ActiveCN106146307BIncrease added valuePositive reference valuePreparation by ester-hydroxy reactionOrganic compound preparationPhotocatalytic reactionVegetable oil
The invention belongs to the field of UV photocatalytic chemical technology, and a unsaturated plant oil alkyl and its preparation method based on UV photocatalytic reactions is disclosed.This alkyl has the following formula (1) and formula (2). 1 It is a direct chain or branched alkane base of C1 to C4, R 2 For ‑H, 、Cl, ‑ch 3 , ‑Oh, hoch 3 , ‑C (CH 3 Cure 3 At least one of the waiting; n = 0 or 1; 1 <m; 0 <m+s <4; 6 <L+M+N+S+T <16; R 3 For ‑Oh, hch 3 At least one of ‑Cooh and other; A = 1 or 2; 0
Owner:SOUTH CHINA AGRI UNIV
Paraffinic hydrocarbon for fuel cell application
A fuel cell system and a method of producing electricity in a fuel cell are described. The fuel cell system includes a reformer for converting an unreformed fuel to produce a reformate fuel gas; and a fuel cell stack adapted to generate electricity using the reformate fuel gas. The unreformed fuel is a solid paraffinic hydrocarbon. Some hydrocarbons include at least about 5 wt. percent olefins; at least about 5 wt. percent n-paraffins; and between about 2 and 50 wt. percent branched paraffins wherein substantially all of the branch groups are monomethyl and wherein the ratio of terminal monomethyl branching to internal monomethyl branching is at least about 1:1.5.
Owner:REG SYNTHETIC FUELS LLC
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