37 results about "N-hexacosanol" patented technology

The invention belongs to the technical field of growth promotion for astragalus membranaceus. In order to achieve the purposes of promoting growth and improving quality of astragalus membranaceus, growth promotion endophytes and a growth promotion method and the application of the method are provided. The endophytes are sphingobacterium strain KSCO1 and pseudomonas poae strain KSCO2; the aspergilusniger is preserved at the Center of General Microbiological Culture Collection and Management Committee of China on November 21st, 2017. The preservation number is CGMCC No.14945, CGMCC No.14946. 2-10Mum E-2-hexanol and 5-625Mum n-hexane promote the growth of KSC01, and 25-625Mum n-hexane promotes the growth of KSCO2. A green and environment-friendly pesticide component without medicinal materialresidual for the planting astragalus membranaceusof Chinese medicinal material is provided.

The invention discloses a hanseniaspora uvarum strain QTX22 capable of producing aroma substances at high yield and application thereof, and belongs to the technical field of microorganisms. The preservation number of the hanseniaspora uvarum strain QTX22 is CCTCCM 2021083. The yield of n-hexanol generated by fermenting grape juice by the strain is up to 461.27 [mu] g / L, and the yield of phenethyl acetate is up to 359.4 [mu] g / L.

The invention discloses a polypropylene composite material for capacitor films. The polypropylene composite material is prepared from the following components in parts by weight: 90-120 parts of polypropylene, 30-40 parts of glass fiber, 2-7 parts of pentaerythritol, 2-7 parts of para-phthalonitrile, 5-10 parts of sodium silicate, 1-3 parts of n-hexacosanol isovalerate, 0.5-1.5 parts of isoborneol acrylate, 1-3 parts of melamine, 2-6 parts of silicon carbide, 10-12 parts of butadiene resin, 3-6 parts of nitrocellulose and 2-7 parts of assistant. The polypropylene composite material for capacitor films uses the polypropylene as the main raw material, and uses the glass fiber, pentaerythritol, para-phthalonitrile, sodium silicate, n-hexacosanol isovalerate, isoborneol acrylate, melamine, silicon carbide, butadiene resin, nitrocellulose and assistant as the auxiliary materials. The polypropylene composite material for capacitor films has the characteristics of high elastic modulus, high strength, high heat-deformation temperature and favorable dimensional stability.

The invention relates to a porous Se-SiO2 nanoparticle as well as a preparation method and application thereof. The porous Se-SiO2 nanoparticle consists of elementary Se, SiO2 covering the elementary Se and polyvinylpyrrolidone covering the surface of the SiO2; the preparation method comprises the following steps: firstly preparing a Cu2-xSe normal hexane dispersion liquid, and then adding de-ionized water, n-hexanol, polyethylene glycol octylphenol ether, n-hexane, tetraethyl orthosilicate and ammonia water to the Cu2-xSe normal hexane dispersion liquid; dispersing a reaction product in the de-ionized water so as to obtain a nano Se-SiO2 dispersion liquid, then adding polyvinylpyrrolidone to the nano Se-SiO2 dispersion liquid and conducting hydrothermal treatment for a certain duration so as to obtain the porous Se-SiO2 nanoparticle; and the prepared porous Se-SiO2 nanoparticle can be applied to the loading, transfer or slow release of anti-cancer drugs. Compared with the prior art, the porous Se-SiO2 nanoparticle disclosed by the invention has the advantages of good biocompatibility, good nano Se release performance, high anti-cancer drug loading rate and the like.

The invention relates to the field of chemical industry rectification, and discloses an azeotropic rectification separation apparatus, an azeotropic distillation separation method of n-hexanol, and applications of the apparatus and the method. The azeotropic rectification separation apparatus comprises a tower kettle, a distillation tower and a condensation phase-separation unit, wherein the condensation phase-separation unit comprises a condensation pipe and a phase separation part, the phase separation part is connected below the condensation pipe, the top portion of the distillation tower is provided with a material introduction pipe for introducing a material exported from the top portion of the distillation tower into the bottom portion of the condensation pipe, and the phase separation part is provided with a reflux pipe for overflowing a light component obtained through the phase separation in the phase separation part to the distillation tower. According to the present invention, with the method, the binary azeotropic mixture formed from n-hexanol and water can be separated without the adding of the azeotropic agent, such that the method has advantages of strong specificity, simple process, low energy consumption and good purification effect, and the recovered n-hexanol can be used as the raw material so as to be reused.

The invention relates to the technical field of pesticide compositions, and concretely relates to a biopesticide insecticidal composition, and a preparation method and application thereof. The composition comprises a diatomite with a specific structure and an attractant active component in a weight ratio of (1: 80) to (80: 1), wherein the diatomite with the specific structure has a zigzag honeycomb structure; and the diatomite of the specific structure is Celite610. On one hand, the adopted diatomite has the specific zigzag honeycomb structure, so that better adsorption to a wax coat on the body surface of an insect is facilitated, and rapid dehydration in the body of the insect is caused; and on the other hand, the wax layer on the body surface of the insect can be easily damaged, the body surface of the insect is torn, and the wax rapidly permeates into the body of the insect to cause fatal damage to the insect. And after the diatomite with the specific structure is compounded with insect attractants such as n-hexanol, 6-methyl-5-heptene-2-one and the like for use, the original passive contact of the composition for preventing and controlling pests is changed into active attraction, so that the preventing and controlling efficiency of the composition is further improved.

A synthesis method of a MoS2 nano-structure material is carried out with MoO2 as a precursor and L-cysteine as a sulfurizing agent under a hydrothermal condition. The synthesis method includes the steps of: (1) dissolving 5 parts by mass of MoO2 in 2 parts by mass of n-hexanol; (2) adding 1-5 parts by mass of L-cysteine to the solution prepared in the step (1), wherein the solution contains 8 parts by mass of the MoO2 and all the mass part values are integers; (3) uniformly stirring the solution in the step (2); (4) pouring the solution in the step (3) into a stainless steel hydrothermal reaction kettle to perform a reaction; (5) centrifuging a reaction product in the step (4) for 20-30 min; (6) performing ethanol ultrasonic cleaning to the centrifuged reaction product in the step (5); and (7) drying the cleaned product in the step (6).

The invention discloses monodisperse water soluble ferroferric oxide nano particles; the water soluble ferroferric oxide nano particles with small size and good dispersion are prepared by use of a fractional precipitation method and combination of n-hexanol as a co precipitation solvent in the condition of relatively fast stirring speed. The preparation process has the advantages of being simple, mild in preparation conditions, controllable in preparation technology, good in repeatability, and capable of technologized production; the obtained ferroferric oxide nano particles are ultra small in size and uniform in morphology, and have good magnetic properties; the used n-hexanol can be recycled, and the cost can be saved.

The invention discloses a method for synthesizing n-hexyl chloroformate by a phosgene method. The method comprises the following steps: step 1, putting Ag n-hexyl ester into a reaction device at the bottom; step 2, after the temperature of the materials in the reaction device is reduced to the set temperature, introducing phosgene through a flow meter, wherein the cumulative introduction amount ofphosgene is Bg; and performing controlling; step 3, when the phosgene flow is accumulated to Bg, stopping introducing light, heating the material in the reaction device to 28 + / -2 DEG C, and keepingthe temperature for 2 hours; and step 4, after the heat preservation is finished, controlling the temperature to be 15 + / -2 DEG C, and introducing nitrogen to remove excessive phosgene and hydrogen chloride, thereby obtaining the n-hexyl chloroformate product. According to the invention, side reaction generation is inhibited through earlier-stage cooling, the side reaction is effectively inhibitedby a method of heating after the n-hexyl alcohol is gradually consumed and the concentration is reduced, the n-hexyl alcohol is more completely reacted in a later heating manner, the barrel expansionphenomenon caused by the side reaction in a later storage process is greatly reduced and the yield of the n-hexyl chloroformate prepared by the method reaches 97% or above.

The invention provides lactobacillus casei DY13 as well as a product and application thereof, and relates to the technical field of biology. The lactobacillus casei DY13 provided by the invention has the advantages that the antibacterial spectrum is wide, the antibacterial activity is high, and the lactobacillus casei DY13 has good antibacterial activity on escherichia coli, salmonella and staphylococcus aureus; the yield of organic acid is high, growth of pathogenic microorganisms can be effectively inhibited, the immunity of livestock can be improved when the bacillus subtilis is applied to preparation of feed, and a good intestinal microorganism system is established; and the fermentation product comprises a plurality of flavor substances, such as n-hexyl alcohol, 1-octylene-3-ol, maltol, ethyl caprylate and the like, so that the palatability of the fermentation product can be remarkably improved, and the nutritional value can be improved.

The invention belongs to the technical field of growth promotion of traditional Chinese medicine astragalus mongholicus, and provides application of n-hexanol in induction of growth of adventitious roots of astragalus mongholicus and synthesis and accumulation of multiple active ingredients of astragalus mongholicus. The current problems of green and sustainable development of astragalus mongholicus resources are solved. The application comprises the steps that after being filtered and sterilized by a 100 mmol / L n-hexanol aqueous solution through a sterile filter membrane, the n-hexanol aqueous solution is stored at 4 DEG C to obtain an n-hexanol inducible factor; and an n-hexanol induction factor is added into an astragalus root adventitious root liquid culture medium according to the addition amount of 0.05% by volume, an astragalus root culture is inoculated according to the inoculum size of 10% by mass volume, and culturing is carried out in a shaking table at 25 DEG C and 100 rpm for 1-2 weeks. The n-hexanol has the effect of promoting the synthesis of the calycosin-7-glucoside synthesis precursor. The dual promotion effects of adventitious root yield and active ingredient synthesis accumulation are comprehensively considered, the elicitor n-hexanol is expected to be developed into a green additive and is applied to an astragalus mongolicus adventitious root tissue culture system, and the yield of a root culture and the content of active substances are improved.

The invention "a grape juice Hansenula sporogenes strain QTX22 producing aroma substances and its application" belongs to the technical field of microorganisms. The one strain of grape juice Hansenula sporogenes Hanseniaspora uvarum The deposit number of strain QTX22 is CCTCC NO:M 2021083. The yield of n-hexanol produced by this strain fermented grape juice was as high as 461.27 μg / L, and the yield of phenethyl acetate was as high as 359.4 μg / L.

The invention discloses environment-friendly wall paint. The wall paint disclosed by the invention comprises the following raw materials in parts by mass: 1-3 parts of 3-dyhydroxy-4-methoxyacetophenone, 2-4 parts of carnosol, 2-3 parts of alkannic acid monomethyl ester, 2-5 parts of 24- trihydroxy pomolic-12-alkene-28-carboxylic acid, 1-4 parts of bornyl acetate, 1-3 parts of hexadecanoic acid, 2-4 parts of 2-hydroxy-6-amino purine riboside, 2-5 parts of azetidine-2-carboxylic acid and 2-3 parts of 9-aristolene-2-ketone and 1-4 parts of n-hexacosanol. The environment-friendly wall paint disclosed by the invention is rich and colorful in colors, bright in color, easy to use, low in price, easy to store, strong in severe environment resistance and long in service life; and the environment-friendly wall paint causes no pollution to the environment.

The invention discloses a yeast strain, namely papiliotrema laurentii HSP22 and application thereof, belonging to the technical field of microorganisms. The preservation number of the yeast strain papiliotrema laurentii HSP22 is CCTCC No. M: 2021086. The yield of n-hexanol generated by fermenting grape juice by the strain reaches up to 430.37 [mu]g / L, the yield of 1-amyl alcohol reaches up to 156.79 [mu]g / L, and the yield of ethyl acetate reaches up to 160.23 [mu]g / L.

The invention discloses a method for directional immobilization of lipase with nanometer ferric oxide, comprising the following steps: (1) synthesizing nanometer ferric oxide by hydrothermal method, using silane coupling agent and glutaraldehyde to synthesize the nanometer ferric oxide Ferric iron tetroxide is modified; (2) lipase and interfacial activator are dissolved in the buffer solution to obtain immobilization solution, and the modified nano iron ferric oxide is added to the immobilization solution as a carrier to carry out immobilization reaction; The interfacial activator includes at least one of Tween, sucrose ester, n-hexanol, n-hexane, Triton X-100 and sodium lauryl sulfate; (3) after the immobilization reaction finishes, add to the immobilization solution Glutaraldehyde is used for cross-linking, and after the cross-linking is completed, the lipase is separated, washed and dried to obtain immobilized lipase. The immobilized lipase prepared by the invention has the advantages of high efficiency, stability, good dispersibility, easy recovery and the like.

The invention discloses an organically modified biotite-loaded ultrafine nanometer zero-valent zinc suitable for the degradation of heavy non-aqueous phase halogenated pollutants and a preparation method thereof. After washing biotite with water, add ZnCl 2 Mix in the solution to obtain zinc ion-saturated biotite; mix n-hexanol, dedecyltrimethylammonium bromide and n-hexane, then add azobisisobutyronitrile and acetoacetoxyethyl methacrylate, fully Stir to form transparent micelles to obtain monomer solution 1; add Ce(BH 4 ) 3 Stir and mix to obtain monomer solution 2; mix monomer solution 1, monomer solution 2 and zinc ion-saturated biotite particles, and undergo scaffolding polymerization to obtain organically modified biotite-loaded ultrafine nanometer zero-valent zinc . The organically modified biotite embedded with nanometer zero-valent zinc can not only improve the agglomeration form of the zero-valent zinc in the DNAPL phase, but also enable the reaction domain of the zero-valent zinc to retain water in the DNAPL phase, and has high-efficiency degradation activity.

The invention belongs to the field of astragalus growth-promoting technology, and provides astragalus growth-promoting endophytic bacteria and its growth-promoting method and application in order to solve the current problems of astragalus membranaceus growth promotion and quality improvement. Promoting endophytes are: Sphingobacterium ( Sphingobacterium sp. ) strain KSCO1 and Pseudomonas phrysalis ( Pseudomonas poae ) strain KSCO2; on November 21, 2017, it was preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee, and the preservation numbers are: CGMCC No.14945, CGMCC No.14946. 2~10μM E‑2 ‑Hexenal and 5-625 μM n-hexanol promoted the growth of KSC01, and 25-625 μM n-hexanol promoted the growth of KSCO2. A green, environment-friendly pesticide component with no medicinal material residue is provided for the cultivation of Chinese medicinal material Astragalus membranaceus.

The invention relates to a synthesis process for a surfactant, namely hexylglucoside. According to the invention, with glucose as a raw material, hexylglucoside is synthesized through a beta-glucosidase catalysis method. In the synthesis process disclosed by the invention, the feeding ratio of the glucose to n-hexanol to a phosphate buffer solution is 0.1 g: 1.8 mL: 0.8 mL; and the feeding ratio of the glucose to a beta-glucosidase stock solution is 0.1 g: 80 [mu]L. According to the invention, beta-glucosidase is used as a catalyst, and the hexylglucoside is synthesized in one step. The synthesis process provided by the invention has the advantages of easily available raw materials, simple process, no pollution, few byproducts, good hexylglucoside product performance, and industrial production application prospect.

The invention relates to a porous Se-SiO2 nanoparticle as well as a preparation method and application thereof. The porous Se-SiO2 nanoparticle consists of elementary Se, SiO2 covering the elementary Se and polyvinylpyrrolidone covering the surface of the SiO2; the preparation method comprises the following steps: firstly preparing a Cu2-xSe normal hexane dispersion liquid, and then adding de-ionized water, n-hexanol, polyethylene glycol octylphenol ether, n-hexane, tetraethyl orthosilicate and ammonia water to the Cu2-xSe normal hexane dispersion liquid; dispersing a reaction product in the de-ionized water so as to obtain a nano Se-SiO2 dispersion liquid, then adding polyvinylpyrrolidone to the nano Se-SiO2 dispersion liquid and conducting hydrothermal treatment for a certain duration so as to obtain the porous Se-SiO2 nanoparticle; and the prepared porous Se-SiO2 nanoparticle can be applied to the loading, transfer or slow release of anti-cancer drugs. Compared with the prior art, the porous Se-SiO2 nanoparticle disclosed by the invention has the advantages of good biocompatibility, good nano Se release performance, high anti-cancer drug loading rate and the like.

The invention discloses a coconut oil additive, a preparation method and application thereof. The coconut oil additive is prepared from the following raw materials: 25 to 35 parts of coconut oil, 45 to 50 parts of n-hexanol, 5 to 15 parts of tween-80, 1 to 5 parts of SP-80 and 1 to 15 parts of a co-emulsifier. The preparation method comprises the following steps: compounding tween-80 and SP-80 inn-hexanol to obtain a water phase, adding a co-emulsifier into the obtained water phase, stirring and mixing, adding coconut oil, stirring in warm water to fully mix, and cooling to obtain the coconutoil assistant. The plant number control effect and the fresh weight control effect of 75 mL of 4% nicosulfuron and the coconut oil additive accounting for 0.5% of water consumption on weeds in a cornfield are 91.28% and 99.54% respectively.

The invention discloses a production process of n-hexylamine. The production process comprises the following raw materials in parts by weight: 10 to 50 parts of methyl n-hexyl ketoxime, 5 to 30 parts of diethyl ether, 15 to 35 parts of phosphorus pentachloride, 2 to 10 parts of a catalyst, 12 to 28 parts of n-hexyl alcohol, 5 to 20 parts of ammonia gas, 5 to 15 parts of hydrogen, 10 to 40 parts of caprolactam, 8 to 24 parts of sodium carbonate and 5 to 12 parts of organic solvent. The production process comprises the following steps: S1, putting methyl n-hexyl ketoxime into a first reactor, then adding diethyl ether, reacting for a period of time, then adding water, uniformly stirring, and after stirring for a period of time, adding phosphorus pentachloride to finally obtain N-acyl n-hexylamine. According to the production process of the n-hexylamine, the reaction conditions are mild, the problems existing in the production process are solved, the production route of the process is simple and optimized, the operation is simple, the production conversion rate is high, and a product with good selectivity can be finally obtained, so that the economic benefit can be greatly improved.

The invention discloses a preparation method of monodisperse water soluble ferroferric oxide nano particles; the water soluble ferroferric oxide nano particles with small size and good dispersion are prepared by use of a fractional precipitation method and combination of n-hexanol as a co precipitation solvent in the condition of relatively fast stirring speed. The preparation process has the advantages of being simple, mild in preparation conditions, controllable in preparation technology, good in repeatability, and capable of technologized production; the obtained ferroferric oxide nano particles are ultra small in size and uniform in morphology, and have good magnetic properties; the used n-hexanol can be recycled, and the cost can be saved.

The invention discloses application of stomach cancer gas markers in breath to preparation of a stomach cancer diagnostic reagent. The markers are selected from multiple or all of compositions in the following combinations: isoprene, 2,2-neopentanoic acid, hexyl alcohol, 2-methylpentane, 3-methylpentane, normal hexane, 3, 3-dimethyl pentane, 2-methylhexane, 3-methylhexane, menthol, phenylacetate, cetane, tetradecane, dodecane and acetone. The stomach cancer diagnostic reagent is used for diagnosing stomach cancer by detecting the content of the stomach cancer gas markers in breath of a testee, and also can be used for judging that stomach cancer is in an early stage or a development stage. According to the invention, the multiple stomach markers in breath of people are provided for diagnosing stomach cancer, also can be used for distinguishing stomach cancer in an early stage or a development stage, and are beneficial to guidance on clinical treatment.

The invention provides a method and device for separating cyclohexanol and n-hexanol by extracting and rectifying. The process of extracting and rectifying adopts a double-tower process, which is composed of an extracting and rectifying tower and a solvent recovery tower. Distillation can separate and obtain n-hexanol products with a mass concentration of ≥99.0wt% and cyclohexanol products with a mass concentration of ≥99.5wt%. Not only can the effective utilization rate of cyclohexanol be improved, but also waste oil discharge can be reduced, and can be used in industrial production.

The invention relates to a treatment method of a mixed solution containing ethanol, piperazine, n-hexanol and water, which comprises the following steps: rectifying and separating the mixed solution in a first rectifying tower to obtain a first material containing ethanol and water at the tower top and a second material containing piperazine and n-hexanol at the tower bottom, extracting the second material, and carrying out vacuum rectification in a second rectifying tower to obtain a piperazine product at the tower top and an n-hexanol product at the tower kettle. According to the treatment process disclosed by the invention, ethanol, piperazine, n-hexanol and water can be respectively extracted and recovered from a mixed solution of ethanol, piperazine, n-hexanol and water, and the obtained product is high in purity and can be used for treating wastewater containing the substances in the pharmaceutical industry.

The invention relates to an n-p heterogeneous spherical gas-sensitive material and a preparation method thereof, in particular to a p-type porous spherical NiO loaded n-type nano-SnO 2 Gas sensitive material and preparation method. The preparation steps are: 1. A certain amount of Ni(NO 3 ) 2 • 6 H 2 O is put into a bubbling stirred tank, add cyclohexane, water, n-hexanol and sodium lauryl sulfate, stir and fully dissolve in a water bath at 5~20°C; Inject CO at a rate of ml / min 2 Bubble for 30min, then increase the pressure in the bubbling stirred tank to 0.05~0.1 MPa, stop feeding CO 2 ; 3. Add 2mol / L NaOH solution drop by drop to pH=8~11, let stand for 1~2 h; 4. Add a certain amount of SnCl 4 ·5H 2 O and stirred at 50-80°C to powder, and then put into a muffle furnace for calcination at 500-700°C for 4-8h to obtain n-p heterogeneous porous spherical gas-sensing materials.

The invention discloses a method for extracting and purifying lignin peroxidase from reverse micelles, which comprises the following steps: preparing a reverse micellar solution comprising biosurfactant, isooctane and n-hexanol, wherein the biosurfactant is mouse Liglycolipid; mix the prepared lignin peroxidase crude enzyme solution with the reverse micellar solution, stir, centrifuge and leave to separate the phases, and keep the upper organic phase; mix the upper organic phase with the buffer Mixing, stirring, centrifuging, standing still and phase separation, retaining the lower aqueous phase to obtain a purified lignin peroxidase solution. The method of the invention is environmentally friendly, safe, easy to operate and low in cost.