68 results about "Tridecane" patented technology

The invention relates to a new catalytic technology for preparing long-chain alkanes from biomass derivative furfural or 5-hydroxymethylfurfural (HMF), which can produce octane and nonane with high selectivity, as well as a small amount of tridecane and deca The pentane solves the problems of harsh conditions and low alkane selectivity in the process of preparing fuel from biomass derivatives. Using biomass derivatives furfural or HMF as raw materials, by designing new catalysts and new reaction pathways, an overall process and catalyst system for the preparation of long-chain alkanes from biomass derivatives furfural or HMF is proposed. The outstanding feature is that the reaction conditions are mild, Alkanes are more selective.

The present invention particularly discovered strains that are capable of producing a long-chain dicarboxylic acid by culturing microorganisms belonging to Candida vini Candida entamophila, Candida blankii and Pichia farinosa which has the ability to produce a long-chain dicarboxylic acid in a liquid medium containing a straight-chain saturated hydrocarbon (tridecane) as substrate.

The invention provides a preparation method and application of a myocardial metabolism PET imaging agent trans-2-(2-(5-(fluorine [18F]) tridecyl) cyclopropyl) acetic acid (a compound I for short). Comprising the following steps: a nucleophilic substitution reaction: mixing activated < 18 > F ions with a solution containing a compound I tert-butyl ester precursor, and carrying out the nucleophilic substitution reaction to obtain an intermediate product solution containing the compound I tert-butyl ester; and a tert-butyl ester group removal reaction: adding an acidic solvent into the intermediate product solution of the tert-butyl ester of the compound I, and carrying out the tert-butyl ester group removal reaction to obtain a product containing the compound I. The yield and the labeling rate are improved, and the radiochemical purity is high.

A multi-layer membrane which has a mixed polyamide selective layer supported on a porous polysulfone layer. The mixed polyamide selective layer includes reacted units of a polyfunctional acyl halide (e.g. trimesoyl chloride) and a diamine mixture containing 4,7,10-trioxa-1,13-tridecanediamine and a cyclic diamine (e.g. piperazine). Methods of fabricating the multi-layer membrane via techniques such as phase inversion and interfacial polymerization are described. The inventive membrane is evaluated on its water flux and salt rejection (e.g. sulfate and chloride salts) capabilities. A water desalination system containing the multi-layer membrane(s) is also provided.

An improved method for producing di-isotridecylphthalate (DTDP) is disclosed by esterification using a tetra-alkyl titanate catalyst made from preferably primary alcohols having at least 4 and preferably up to but not more than 10 carbon atoms. In the esterification process, compared to using tetra-isopropyl titanate catalyst, less of the alcohol from the catalyst contributes to the environmental burden associated with discarding the waste water byproduct, and more is incorporated into the prime DTDP product.

The invention provides a preparation method of an oil-soluble Fe3O4/modified graphene oxide composite material. The method includes steps of: a) under alkaline condition, mixing a graphene oxide watersolution and a water solution containing Fe<3+> and Fe<2+>, and performing a heating reaction to obtain a Fe3O4/modified graphene oxide composite material; B) performing a mixing reaction to the Fe3O4/modified graphene oxide composite material with alkyl amine to obtain the oil-soluble Fe3O4/modified graphene oxide composite material, wherein the alkyl amine is selected from lauryl amine, tridecylamine, tetradecylamine, cetylamine, octadecylamine, or diisotridecylamine. In the invention, firstly, through chemical coprecipitation to the Fe<3+> and Fe<2+> and graphene oxide, water-soluble Fe3O4/graphene oxide is obtained; then through self-assembling to the Fe3O4/modified graphene oxide with specific alkyl amine, the oil-soluble Fe3O4/modified graphene oxide composite material is produced.

The invention relates to a disinfectant, in particular to a disinfectant containing aldehyde derivatives and tridecane quaternary ammonium salt derivatives. The disinfectant comprises 1 part to 5 parts of hexamethylene tetramine and 1 part of benzalkonium bromide according to the parts by weight. The disinfectant has the advantages of simple preparation, excellent disinfection effect, long period of validity, excellent environmental-protection performance, low irritability, no toxic and no harm to the human body and the animals and the like; and the disinfectant can be widely applied to disinfection and sterilization for air, various tools, hand parts and equipment pipelines.

The invention belongs to the technical field of chemical materials, and relates to a chemical blocking remover for an immovable string of an oil-water well and a preparation method and application thereof, the chemical blocking remover comprises the following raw materials in percentage by mass: 15-30% of a chelating scale dissolving agent, 0.5-1.5% of a permeation solubilizer, 2.0-4.0% of an anti-scale stabilizer, 4.0-8.0% of a viscous stable discharge aiding agent and water, wherein the chelating scale dissolving agent is one or a mixture of more than two of 1, 4, 7, 10-tetraazacyclododecane N-tetraacetic acid, ethylenediamine tetraacetic acid and 3-methyl 1, 5, 8, 11-tetraazacyclotridecane N-tetraacetic acid. The blocking remover is a neutral system and has environmental protection performance; the blocking remover can be prepared and used on site, the construction technology is effectively simplified, the operation efficiency is improved, the cost is reduced, swabbing and liquid discharging are not needed, and the purpose of stably increasing the yield of the oil producing well is achieved.

The invention relates to an antifouling and dustproof quick-drying cleaning agent composition which comprises the following components in parts by mass: 1 to 3 parts of AEO9, 1 to 4 parts of APG, 5 to15 parts of modified polysiloxane, 2.5 to 6 parts of an anionic surfactant and 1.5 to 2 parts of 2-tridecanoxyethanol, wherein the modified polysiloxane is a product prepared by carrying out a condensation reaction on hydrogen-containing silicone oil and polyhydric alcohol monomethyl ether. The composition is a low-toxicity, green and environment-friendly composition, and does not contain any insoluble solid particulate matter, a film can be quickly formed on the hard surface of a kitchen ware facility, and the cleaning agent has excellent quick-drying effect, decontamination effect, anti-pollution persistence and the like.

The invention provides an SEBS rubber additive, a preparation method and the SEBS rubber thereof. The SEBS rubber additive comprises the following components in weight percentage: 25-30% of hexadecane, 20-25% of heptadecane, 15-20% of pentadecane, 10-15% of octodecane, 10-15% of tetradecane, 2-5% of tridecane, and 2-3% of dodecane. When the SEBS rubber additive and the SEBS together form the rubber and a thermoplastic elastomer, the diluted smell generated at a high temperature is removed. Meanwhile, the odor is eliminated.

The present disclosure relates to compositions containing a mixture of e.g. one or more or two or more compounds released by a citrus plant in quantities that are altered during infection with Huanglongbing disease, where the composition is an attractant for psyllids. Furthermore, compositions contain one or more active compounds which constitute a synthetic chemical blend for attracting psyllids. Active compounds in the compositions may include, for example, one or more compounds selected from linalool, tridecane, 4-OH-4-Me-2-pentanone, hexacosane, 1-tetradecene, tricosane, geranial, tetradecanal, phenylacetaldehyde, methyl salicylate, cumacrene, (E)-beta-ocimene, hexadecanol, and geranyl acetone.

The invention provides a preparation method of the compound 1, 13-dihydroxy-6-methyl-6, 7, 8, 9, 12, 13, 14, 14a-octyl hydrogen-1H-cyclopentane [f][1] epoxytridecane-4(11aH)-one and its application. The compound is obtained by solid fermentation and extraction separation of a production strain, which is wintersweet Phomopsis chimonanthi that is preserved in China general microbiological culture collection center on December 5, 2011, with a preservation number of CGMCC No 5551. The compound prepared in the invention has inhibiting activity on Aspergillus fumigatus.

The invention discloses a novel method for preparing asiatic corn borer sex pheromone from a tridecane compound which is taken as an initial raw material, and belongs to the technical field of agricultural plant protection. The invention provides a novel method for preparing asiatic corn borer sex pheromone from a tridecane compound which is taken as an initial raw material. In particular, the invention first proposes an innovative and unique '13C+1C' synthesis strategy for chemical synthesis of the asiatic corn borer sex pheromone. The method disclosed by the invention has the characteristics of low raw material cost, short synthesis route, simple synthesis condition, high total yield and the like, and is applicable to industrial production.

The invention discloses a solid-solid phase change material as well as a preparation method and application thereof. The solid-solid phase change material disclosed by the invention is prepared from the following components in percentage by mass: 80-87% of n-tetradecane, 3.8%-5.8% of n-tridecane, and the balance of superfine 52-degree semi-refined paraffin, totaling 100%. The preparation method ofthe solid-solid phase change material comprises the following steps: mixing and heating the n-tetradecane and the n-tridecane, then adding the superfine 52-degree semi-refined paraffin wax, heating and stirring until the paraffin wax is dissolved to obtain a solution system, stopping stirring and preserving heat of the solution system, and then cooling the solution system to room temperature to obtain the solid-solid phase change material. The crystallization temperature of the solid-solid phase change material can meet the refrigeration temperature required by the blood storage environment.The material is stable in shape, the material cannot seep out of an outer package at high temperature when the material is prepared into a cold accumulation device by means of filling, the problem ofpossible pollution is avoided, and the material is safe to use, free of risk and long in service life.

The invention provides a preparation method and application of a liquid composition of a myocardial metabolism PET imaging agent trans-2-(2-(5-fluorine [18F] tridecyl) cyclopropyl) acetic acid (compound I for short), and the preparation method comprises the following steps: purifying a crude product containing the compound I by high performance liquid chromatography; wherein a mobile phase used in the high performance liquid chromatography purification step comprises ethanol and water. According to the present invention, the experiment process scheme is optimized, the use amount of the compound I tert-butyl ester precursor is changed, the reaction time for achieving the same labeling rate is shortened, the radioactivity of the initial 18F ion is improved, the labeling rate is improved, and the yield is improved.

The invention discloses a method for co-producing epoxypropane and epoxy chloropropane, belonging to the technical field of fine chemistry. The method comprises the steps of: firstly, extracting chloropropanol produced by adopting a chlorohydrination method by using an extracting agent, rectifying and extracting the chloropropanol and then entering into a saponification procedure to produce epoxypropane; extracting hydrochloric acid in a chlorohydrination method production process by using a complexing extracting agent; and finally, reacting the extracted hydrochloric acid with glycerol and a carboxylic acid catalyst to produce epoxy chloropropane, wherein the used complexing extracting agent is formed by mixing N235, n-tridecane and trioctyl phosphate in a volume ratio of 50:45:5. According to the method, the co-production of epoxypropane and epoxy chloropropane is realized through a specific process, thus the utilization rate of hydrochloric acid is increased, the utilization value of hydrochloric acid is increased, the environment pollution is reduced, and the raw material waste is reduced.

The invention provides a preparation method of a heat-conductive additive material, which includes the following steps: A) under alkaline condition, mixing a graphene oxide water solution with a metalion water solution to perform a co-precipitation reaction, thus producing a nano-metal oxide/graphene oxide composite material; B) mixing the nano-metal oxide/graphene oxide composite material with alkyl amine for a reaction to prepare the heat-conductive additive material, wherein the alkyl amine is selected from lauryl amine, tridecylamine, tetradecylamine, cetylamine, octadecylamine, or diisotridecylamine. The new heat-conductive additive material is prepared by supporting the nano-metal oxide on modified graphene oxide, so that advantages of both the nano-metal oxide and the graphene arecombined. Compared with graphene oxide and metal oxides, the material has excellent dispersion stability in a nonpolar substrate, so that a problem of compatibility of the nano-metal oxide particles and a carbon nano-material, as heat-conductive additives, with the nonpolar substrate.

The invention relates to the technical field of detergents and discloses a down feather detergent which is characterized by being prepared from the following raw materials in parts by weight: 40 partsof water, 40 parts of a surface active agent, 10 parts of a preservative, 5 parts of a curing agent, 2.5 parts of essence and 2.5 parts of an insect resisting agent, wherein the surface active agentis one or several of iso-tridecane alcohol ether, fatty acid methyl ester ethoxylate, AEO9, glycol stearate, phosphatidyl choline and triglyceride fatty acid; the preservative is cason and paraben. According to the down feather detergent, a plurality of surface active agents are added, so that the down feather detergent has stronger dirt removing ability; the preservative is added, so that mildewof the detergent is avoided, and the service life of the down feather detergent is prolonged; the curing agent is added, so that all the matters is more stable, and the down feather detergent can keepgood performance; the insect resisting agent is added, so that microorganism breeding is effectively prevented; different essences are added, so that the detergent has different fragrances and can further meet requirements of different people.

The invention discloses a method for determining total volatile organic compounds in disposable masks, which comprises the following steps: step 1, preparing a mixed standard solution of n-undecane and n-tridecane; step 2, setting gas chromatography conditions and mass spectrometry conditions, detecting the standard solution of n-undecane and n-tridecane, and drawing a standard curve; step 3, preparing the sample into a preset size, heating and balancing by using an automatic headspace sampler, injecting air at the upper part of a headspace bottle into a gas chromatography-mass spectrometer for separation after the balance is achieved, and performing separation and quantitative detection under the gas chromatography condition and the mass spectrum condition in the step 2 to obtain a chromatogram; and step 4, dividing the obtained chromatogram into two sections according to retention time, respectively substituting the sum of the peak areas of the section A and the section B into corresponding regression equations of n-undecane and n-tridecane, and adding the calculation results to obtain the content of the total volatile organic compounds. The headspace chromatography-mass spectrometry method for determining the content of the total volatile organic compounds is simple and convenient to operate and accurate in determination result.