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235 results about "Octanol" patented technology

Octanols are alcohols with the formula C₈H₁₇OH. A simple and important member is 1-octanol, with an unbranched chain of carbons. Other commercially important octanols are 2-octanol and 2-ethylhexanol.

Extraction organic phase and method for selectively extracting niobium in niobium-containing sulfuric acid solution

The invention belongs to the field of hydrometallurgy, and particularly relates to an extraction organic phase for selectively extracting niobium in a niobium-containing sulfuric acid solution and an extraction method, the extraction organic phase comprises a component a, a component b and a hydrophobic solvent; wherein the component a is a compound with a structure # imgabs0 # as shown in a formula 1; the component b comprises at least one of TBP (tributyl phosphate), MIBK (methyl isobutyl ketone), sec-octanol or isooctanol; r1 is alkyl of C1-C2, and R2 is alkyl of C1-C2; r < 2 > is alkyl of C < 7 > to C < 11 >; a is HCO3 <-> or CO3 < 2->; n is the absolute value of the valence of A. Based on the combination of the component a and the component b, the extraction rate of niobium in the sulfuric acid solution and the extraction separation selectivity of niobium and other elements can be further improved based on the combination and synergy of the components.
Owner:CENT SOUTH UNIV

Microporous breathable fabric, preparation method and application

The invention discloses a microporous breathable fabric as well as a preparation method and application thereof, and relates to the technical field of fabric treatment. The invention discloses a preparation method of a microporous breathable fabric, which comprises the following steps: coating the surface of a base cloth with a polyurethane coating agent, and drying to obtain the microporous breathable fabric, the polyurethane coating agent is prepared from the following raw materials in parts by weight: 100 parts of organic silicon modified polyurethane emulsion, 8 to 11 parts of N, N-dimethylacetamide, 2 to 2.5 parts of n-caprylic alcohol, 5 to 8 parts of a foam homogenizing agent and 1 to 3 parts of a thickening agent PTF; the organic silicon modified polyurethane emulsion is obtained by crosslinking polyurethane with carboxymethyl cellulose through silica sol; the polyurethane coating agent prepared by taking the organic silicon modified polyurethane emulsion as the base material is coated on the surface of the base cloth, so that the fabric has high waterproof performance and also has high air permeability and moisture permeability; the microporous breathable fabric prepared by the invention is applied to the field of outdoor sportswear, and comfortable wearing experience is provided.
Owner:ZHEJIANG KUQU NETWORK TECH CO LTD

A preparation method of a liquid-phase hydrorefining catalyst for crude creosote

The application discloses a preparation method of a catalyst for liquid-phase refining of crude octanol, and the preparation method comprises the following steps: (1) mixing pretreated fly ash and pseudo-boehmite, adding deionized water and nitric acid, stirring until a colloid is formed, drying the colloid, mixing the dried colloid with kaolin, and obtaining a carrier through kneading, extrusion molding, drying and calcination; (2) taking a nickel salt, a manganese salt and a zinc salt as active components, taking a calcium salt as an auxiliary component, dissolving the active components and the auxiliary component in deionized water to obtain a salt solution, adding n-hexane into the salt solution and stirring uniformly to prepare an impregnation solution, immersing the carrier in the impregnation solution, and obtaining the catalyst through washing, drying and calcination. The catalyst prepared by the method is mainly used in a liquid-phase refining reaction process of crude octanol, and has high activity stability and selectivity.
Owner:NINGBO JINYUANDONG PETROCHEM ENG TECH

Sunscreen synergistic composition and application thereof

The invention relates to a sunscreen synergistic composition and application thereof. The sunscreen synergistic composition is prepared from a sphingomonas fermentation product extract, wax powder, a dextrin thickener and butyl octanol salicylate, the dextrin thickening agent is prepared from dextrin palmitate and / or dextrin palmitate / ethyl hexanoate. The invention creatively finds that the four components, namely the sphingomonas fermentation product extract, the wax powder, the dextrin thickener and the butyl octanol salicylate, can interact and positively influence one another, and have a synergistic promotion effect which is unexpected by technicians in the field in the aspect of sunscreen synergism. The sunscreen synergistic composition provided by the invention is very suitable for skin care products, mild, non-irritant and good in stability.
Owner:GUANGZHOU HAIGUI PAPA BIOTECHNOLOGY CO LTD

Butyl octanol tail gas condensation recovery device

The utility model relates to the technical field of condensation recovery, and discloses a butanol and octanol tail gas condensation recovery device which comprises a condensation cylinder, a liquid chamber is arranged in the middle of the condensation cylinder, a bottom plate is fixedly connected to the bottom of the condensation cylinder, a top plate is fixedly connected to the top of the condensation cylinder, and a gas inlet pipe is fixedly connected to the middle of the top plate. An annular pipe is arranged on the outer portion, corresponding to the air inlet pipe, of the upper side of the top plate, a liquid inlet pipe is fixedly connected to the right side of the annular pipe, and a plurality of spiral pipes are arranged on the inner side of the condensation cylinder. The contact area with tail gas is greatly increased through the condensation cylinder, the spiral pipe and the condensation plate, so that the tail gas condensation and collection effect is improved, the condensation and collection speed is increased, the motor drives the rotating shaft to rotate, the fan blades are driven to rotate through the rotating shaft, tail gas flowing is promoted, the inner wall of the condensation cylinder is increased, and the condensation effect is improved. The contact probability of the spiral pipe and the outer wall of the condensation plate improves the condensation effect.
Owner:SHANDONG FENGHUIZE CHEM CO LTD

Cleaning agent composition and water dilution type cleaning agent

To provide a novel cleaning agent composition that exhibits excellent cleanability, is less corroded by articles containing metals such as aluminum, and is capable of removing a copper oxide film.SOLUTION: There is provided a cleaning agent composition including: 3-amino-4-octanol (A); at least one type of organic phosphorus compound (B) selected from the group consisting of acidic phosphate esters (B1), organic phosphonic acids (B2), and salts thereof; and optionally, water (C).SELECTED DRAWING: None
Owner:ARAKAWA CHEM IND LTD

Pyraclostrobin drug-loaded microspheres as well as preparation method and application thereof

The invention belongs to the technical field of pesticide preparations, and particularly relates to kresoxim-methyl drug-loaded microspheres as well as a preparation method and application thereof. The 9% pyraclostrobin drug-loaded microspheres (Pyr (at) COzein) are prepared by modifying a Zein-pesticide emulsifier 500 # complex with n-caprylic alcohol, and the n-caprylic alcohol has a synergistic effect on pyraclostrobin, so that not only can the defect of a sustained and controlled release preparation in the aspect of fast-acting sterilization be made up, but also the use dosage of pyraclostrobin can be reduced, the risk of pesticide residue can be reduced, and the drug-loaded microspheres have a good application prospect. The ecological safety is improved.
Owner:ANHUI AGRICULTURAL UNIVERSITY +1

Lemon juice-containing beverage

To provide a novel technique that can improve a refreshing feeling and aftertaste of a lemon juice-containing beverage.SOLUTION: A lemon juice-containing beverage satisfies at least one of the following conditions: (A) fruit juice percentage: 4% or less, citric acid acidity: 0.4-1.0 g / 100 ml, and ethyl acetate content: 20-10000 ppb, (B) fruit juice percentage: 30% or less, citric acid acidity: 0.4-1.2, and ethyl butyrate content: 10-1000 ppb, (C) fruit juice percentage: 30% or less, citric acid acidity: 0.4-1.0, and 6-methyl-5-hepten-2-one content: 30-1000 ppb, and (D) fruit juice percentage: 4% or less, citric acid acidity: 0.4-1.2, and 1-octanol content: 40-1000 ppb.SELECTED DRAWING: None
Owner:ASAHI SOFT DRINKS CO LTD

Method for identifying fish meat from different sources by combining electronic tongue with HS-SPME-GC / MS

The invention relates to the technical field of fish meat source identification, in particular to a method for identifying different sources of fish meat by combining an electronic tongue with HS-SPME-GC / MS. The method comprises the following steps: obtaining a fish meat sample; performing taste detection on the fish meat sample by adopting an electronic tongue to obtain a taste detection result; after the fish meat sample is extracted, volatile odor substance detection is conducted through chromatography and mass spectrometry, volatile odor substances comprise one or more of dimethyl phthalate, nonanal, n-hexyl alcohol, naphthalene, octanol, 1-octylene-3-alcohol and alpha-platylene, and a volatile odor substance detection result is obtained; and identifying the fish meat source in combination with the taste detection result and the volatile odor substance detection result. According to the method, an electronic tongue technology and a headspace solid phase microextraction-gas chromatography-mass spectrometry technology are combined for use, and the taste and the smell are detected at the same time so as to distinguish fish meat from different sources, so that a more reliable quality evaluation system can be established, accurate traceability and grading are supported, and different user requirements are met.
Owner:TONGWEI AGRI DEV CO LTD

Application of bacillus albordowii in cultivation for improving flavor of fragrant rice

ActiveCN120584717ABacteriaMicroorganism based processesAromatic riceHexanal
The invention discloses application of bacillus albordowii in cultivation for improving the flavor of fragrant rice, and relates to the field of fragrant rice cultivation and planting. According to the application, it is found for the first time that bacillus albordowii has the effect of improving flavor substances of fragrant rice, and when fragrant rice seedlings grow to the three-leaf and one-core stage, the roots of the seedlings are soaked with bacillus albordowii liquid; after the seedlings are transplanted to a field, the bacillus albopastoris bacterial liquid is sprayed to the soil at the roots of the seedlings, 24 main aroma components in the fragrant rice can be increased by 5.56%-12036.00%, the content of 2-ethyl-1-hexanol with rose fragrance is increased by 120 times or above, the content of 2-butyl-1-octanol with flower fragrance is increased by 235.71%, the content of 6, 10-dimethyl-(E)-5, 6-dimethyl-2, 6, 6-tetramethyl-1, 3-pentanedione with fruit fragrance is increased by 235.71%, and the content of 6, 10-dimethyl-(E)-5, 6-tetramethyl-1, 3-pentanedione with fruit fragrance is increased by 235.71%. The content of 2, 9-undecylene-2-ketone is increased by 132.50%, the content of limonene, the content of hexanal, the content of 2-heptanone, the content of 2-tridecanone and the content of 2-pentadecanone are increased by 50% or above, and the content of 2-acetyl-1-pyrroline (2-AP) is increased by 30% or above; the application method is more convenient to operate, and the overall flavor of the rice is improved more remarkably.
Owner:JIANGSU ACAD OF AGRI SCI

Separation and extraction method for rhenium in smelting waste acid

PendingCN120366607AKerosenePhysical chemistry
The invention discloses a method for separating and extracting rhenium in smelting waste acid, which comprises the following steps: adding hydrogen peroxide into rhenium-containing waste acid for oxidation, adding Na2S for copper precipitation and molybdenum precipitation, acidifying supernate, extracting by adopting an extraction organic phase formed by mixing TOA, sec-octyl alcohol and kerosene, and carrying out chemical reverse extraction on the extraction phase by using ammonia water, and carrying out condensation crystallization and vacuum filtration on the strip liquor to obtain ammonium rhenate solid powder and the like. According to the method, a separation and extraction method of precipitation-extraction-condensation crystallization is adopted, and high-selectivity extraction of the high-valence rhenium compound is carried out through TOA, so that effective extraction of rhenium can be completed only through primary extraction and reverse extraction, the process period of rhenium extraction is effectively shortened, the total yield of rhenium reaches 99% or above, and the method is suitable for industrial production. And the mass fraction of the produced ammonium rhenate product is greater than 99.9%, and the method has the advantages of low process technology cost and easier realization of industrialization.
Owner:LONGYAN YUHENG ENVIRONMENTAL PROTECTION TECH CO LTD

Hair care composition as well as preparation method and application thereof

The invention discloses a hair care composition as well as a preparation method and application thereof. Wherein the hair care composition is prepared from the following components in parts by weight: 0.1 to 8 parts of butyl octanol salicylate; 0.1 to 8 parts of half squalane; 0.01 to 1 part of prinsepia utilis royle oil; 0.1 to 8 parts of tri-olein; 10 to 90 parts of cyclopentasiloxane, and 10 to 90 parts of cyclopentasiloxane; the hair care composition provided by the invention has good hair care and color fixation effects, is moderate in greasy feeling, comfortable to use and high in glossiness when being smeared on hair, can effectively repair hair quality damage caused by dyeing, and has a good use prospect in the field of hair care and color fixation.
Owner:JALA GROUP CORPORATION

Preparation method of main component octocrylene of sun-screening agent

The invention belongs to the technical field of organic synthesis, and particularly relates to a preparation method of octocrylene serving as a main component of a sun-screening agent. The invention provides a preparation method of octocrylene serving as a main component of a sun-screening agent, which comprises the following steps: dissolving benzophenone in a polar aprotic solvent, adding zinc powder, heating to 50-70 DEG C under an inert condition, and dropwise adding 2-bromo-2-ethyl cyanoacetate for reaction to obtain a solution containing an intermediate etocrylene; under an ice bath condition, acidifying the solution containing the intermediate etocrilene by using a protonic acid aqueous solution, adding isooctanol, and slowly heating to 15-30 DEG C for reaction; and after the reaction is finished, extracting, washing, drying, filtering and concentrating the reaction liquid to obtain the octocrylene. According to the preparation method, reaction steps are reduced, the preparation process is simple, the operation method is convenient and fast, high-purity octocrylene can be obtained without purifying an intermediate, and large-scale industrial production is facilitated.
Owner:HEFEI NUOXIN BIOTECHNOLOGY CO LTD

Tank field waste gas recovery device

A tank field waste gas recovery device belongs to the technical field of chemical tail gas treatment. Comprising a butyraldehyde storage tank, a cooler, a packing absorption tower and an RTO waste gas treatment device, a breather valve is arranged at the top of the butyraldehyde storage tank, a heat insulation structure is further arranged on the upper side of the butyraldehyde storage tank, an outlet of the breather valve is communicated with the bottom of the packing absorption tower, and a cold octanol outlet of the cooler is communicated with the upper portion of the packing absorption tower. And a top outlet of the packing absorption tower is communicated with the RTO waste gas treatment device. A heat insulation structure is additionally arranged on the tank top of the butyraldehyde storage tank to reduce the influence of heat radiation, and butyraldehyde volatilization is reduced. Volatilized butyraldehyde enters from the bottom of the packing absorption tower, cooled octanol enters from the top of the packing absorption tower, gas containing butyraldehyde is sprayed, butyraldehyde components in the tank field waste gas are removed, and the waste gas with butyraldehyde removed enters an RTO waste gas treatment device to be treated. Peculiar smell in a tank area is effectively reduced, and the pressure and temperature of the butyraldehyde storage tank are kept stable.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Preparation method of supported catalyst, supported catalyst and application

The invention provides a preparation method of a supported catalyst, the supported catalyst and application. The preparation method comprises the following steps: precipitating a noble metal Ru precursor and a non-noble metal (Fe, Mn, Cr, Mo and W) precursor on a carrier by adopting a coprecipitation method, and reducing a non-noble metal oxide from a high-valence part to a low-valence part by controlling the ratio and the reduction temperature of the noble metal Ru and the non-noble metal to form high-valence and low-valence coexisting non-noble metal nanoparticles, and the noble metal Ru is in a monatomic dispersed state. Therefore, the preparation method of the supported catalyst provided by the invention has the advantages of simple steps, low cost and no need of complex operation, and is convenient for realizing industrial production. Tests show that when the supported catalyst is applied to hydrogenation reaction of unsaturated aldehyde ketone, hydrogenation reaction of acid and ester, reductive amination reaction of aldehyde and ketone and reductive amination reaction of octanol and hexanediol, the activity and selectivity can be remarkably improved.
Owner:CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES

Synthesis process of environment-friendly coal washing flotation reagent foaming agent

The invention belongs to the technical field of coal washing flotation reagents, and discloses a synthesis process of an environment-friendly coal washing flotation reagent foaming agent, and the synthesis process comprises the following steps: composite reaction; water phase fusion; according to the method, biodegradable alcohols such as pentanol and sec-octanol are adopted as main raw materials, and poloxamer and glycerol are matched, so that the problem of toxic residue of a traditional hydrocarbon foaming agent is avoided. In the synthesis process, low-boiling-point impurities are removed through molecular sieve filtration and a rotary evaporator, it is ensured that the purity of the raw materials is larger than or equal to 99.5%, the proportion of the final product deionized water reaches 40-50%, the use amount of an organic solvent is greatly reduced, nanoscale wrapping of alcohol molecules by an emulsifier OP-10 is achieved through a gradient water adding method and an ultrasonic-assisted emulsification technology, and the content of the alcohol molecules is reduced. And a microemulsion structure with high interfacial film strength is formed. After lauryl sodium sulfate is added as an auxiliary emulsifier, the strength of an oil-water interfacial film is improved by 30% or above, and the half-life period of foam is prolonged to 1.8 times of that of a traditional process.
Owner:SHANXI XINSHENGHE MINERAL PREPARATION TECHNOLOGY CO LTD

Preparation method and application of bio-based modified rosin resin

The invention discloses a bio-based modified rosin resin preparation method, which comprises: placing rosin in a container, introducing carbon dioxide, heating and stirring until the rosin is molten, cooling, sequentially adding phenol and solvent oil, stirring, adding a catalyst, and heating to obtain a mixed material liquid; adding water into the mixed material liquid, stirring and washing, introducing carbon dioxide after washing, heating to evaporate out the solvent oil, heating the mixed material liquid to 200 DEG C, adding an antioxidant, pentaerythritol and octanol, stirring and mixing, heating to 260-280 DEG C, carrying out constant-temperature treatment, cooling to 200-220 DEG C, adding the antioxidant and nano-hydroxyapatite, stirring, cooling to 200-220 DEG C, adding the antioxidant and nano-hydroxyapatite, and carrying out uniform mixing, so as to obtain a finished product. And discharging, cooling, filtering and granulating to obtain the bio-based modified rosin resin. The rosin is used for replacing turpentine to produce the rosin modified phenolic resin, formaldehyde is not added in the production process, volatile organic compounds are not generated after the product is applied, and the rosin modified phenolic resin is environment-friendly and safe and can be applied to the field of automobile adhesives.
Owner:GUANGXI ZHONGCHANG RESIN

Biofuel and process for preparation thereof

A process including either transesterifying seed oils or animal fats with an octanol selected from the group consisting of n-octanol, iso-octanol, 2-ethylhexanol or mixtures thereof in the presence of a catalyst selected from alkali metal n-octoxide, alkali metal iso-octoxide or alkali metal 2-ethylhexoxide, or esterifying fatty acids with an octanol in the presence of a sulfonic acid, thereby forming methanol-free and ethanol-free octyl esters of fatty acids.
Owner:GALATA CHEM LLC

Flotation reagent composition for recovering micro-fine particle copper sulfide from copper oxide acid leaching residues and beneficiation method of flotation reagent composition

The invention relates to the technical field of non-ferrous metal beneficiation, in particular to a flotation reagent composition for recycling micro-fine particle copper sulfide from copper oxide acid leaching residues and a beneficiation method of the flotation reagent composition. The flotation reagent composition for recovering copper sulfide from copper oxide acid leaching residues is characterized by comprising a collecting agent, a hydrophobic agglomeration agent and a foaming agent, and the collecting agent is ethyl thioacetate; the hydrophobic agglomeration agent is prepared from octadecyl triethoxy silane and kerosene; and the foaming agent is selected from terpilenol, methyl isobutyl carbinol or sec-octanol. The ethyl thioacetate serving as a collecting agent is stable in chemical property in an acid environment, weak in gangue mineral collecting capacity and good in selectivity in the copper sulfide mineral flotation process, and therefore the grade and the recovery rate of obtained copper sulfide concentrate are higher.
Owner:CHINA NERIN ENGINEERING CO LTD

Stone coal vanadium ore acid leaching vanadium extraction tailing charcoal ash efficient dissociation and carbon recovery method

The invention discloses an efficient carbon ash dissociation method for stone coal vanadium ore acid leaching vanadium tailings, which comprises the following steps: 1) pulping: mixing the stone coal vanadium ore acid leaching vanadium tailings, an additive and water for pulping to obtain mixed slurry; (2) the mixed slurry is subjected to ore grinding treatment, and ore grinding pulp is obtained; according to the method, the stone coal vanadium ore acid leaching vanadium tailings are subjected to ore grinding under the additive system with the specific combination and proportion, and the dissociation performance of the stone coal vanadium ore acid leaching vanadium tailings is synergistically improved; meanwhile, aiming at the characteristic that the coal surface of the stone coal is partially oxidized, a flotation reagent composed of a traditional collecting agent, composite oleic acid and octanol is adopted, the collecting capacity is effectively improved, the reagent is saved, higher carbon and ash flotation separation selectivity can be obtained, and obtained carbon-rich concentrate can be used as blending combustion coal; the obtained high-ash tailings can be used for preparing Portland cement, baking-free bricks and other building materials after being dehydrated, resource utilization of the stone coal vanadium ore acid leaching vanadium tailings is achieved, and the method has good application and popularization value.
Owner:CENT SOUTH UNIV

A PVC / ABS / PC modified material and preparation method thereof

ActiveCN120484407BPolymer scienceOctanol
The present invention discloses a PVC / ABS / PC modified material and a preparation method thereof, belonging to the field of polymer material technology. The PVC / ABS / PC modified material comprises the following raw materials in parts by weight: 60-80 parts PVC, 30-40 parts ABS, 10-20 parts modified PC, 5-15 parts plasticizer, 2-5 parts stabilizer, 1-2 parts lubricant, and 1-2 parts antioxidant. The plasticizer is prepared by the following method: S1: bis(2-hydroxyethyl) terephthalate reacts with oleic acid chloride to form a double-chain unsaturated compound; S2: the double-chain unsaturated compound reacts with formic acid and H2O2 to form a diepoxide; S3: the diepoxide reacts with n-octanol to form the plasticizer. The PVC / ABS / PC modified material prepared by the present invention has good tensile properties and impact strength.
Owner:TAIZHOU SANCHENG PLASTIC IND CO LTD

Preparation method of 4-sulfydryl-1-octanol

The invention belongs to the technical field of organic synthesis, and discloses a preparation method of 4-sulfydryl-1-octanol, which comprises the following steps: mixing gamma-octanolactone and concentrated hydrochloric acid, carrying out heating reflux reaction for set time, cooling, and separating out an organic phase; adding thioacetic acid into the organic phase, controlling the temperature at 15-20 DEG C, adding a strong alkali solution into the organic phase, heating to 30-45 DEG C, keeping the temperature for 1-3 hours, and carrying out condensation reaction; after the condensation reaction is finished, adding acid to adjust the pH value to be weak acid, extracting a reaction system, washing and concentrating an organic phase, and redissolving a concentrate by adopting an organic solvent to obtain a mixed solution I; and preparing a lithium aluminum hydride solution, slowly adding the mixed solution I into the lithium aluminum hydride solution under a low-temperature condition, and carrying out a reduction reaction at the temperature lower than 20 DEG C for 1-4 hours after the lithium aluminum hydride solution is completely added. The used raw materials are cheap and easily available, the operation is simple and convenient, and the industrial value is high.
Owner:JINAN ENLIGHTEN BIOTECH CO LTD

Method for removing mushroom taste from edible fungi

The present application relates to the field of food, disclose a kind of method for removing mushroom smell of edible mushroom, wherein the method comprises: edible mushroom is carried out photocatalytic treatment under ultraviolet light;The mushroom smell is selected from 1-octene-3-alcohol and / or 1-octanol.The photocatalytic treatment of the present application makes the content of vitamin D2 in edible mushroom be improved, while the content of 1-octene-3-alcohol is significantly reduced, compared with the edible mushroom without ultraviolet treatment, the peak volume of 1-octene-3-alcohol can be reduced by 1356 times, effectively removes the mushroom smell of edible mushroom.
Owner:SHAANXI SCI TECH UNIV

Evaluation method and application of characteristic fingerprint of low-toxicity risk of 30# hard pitch flue gas

The application discloses a 30# hard pitch flue gas low-toxicity risk characteristic fingerprint spectrum evaluation method and application. The application constructs a total ion flow chromatogram characteristic fingerprint spectrum of 30# hard pitch flue gas, the fingerprint spectrum comprises five characteristic peaks of 5-hydroxyvaleraldehyde acetate, alanine, 2,7-dimethyl-1-octanol, acetone and 3-ethyl-2-methylheptane, a to-be-tested pitch flue gas sample is collected, and whether the corresponding chromatographic peaks appear simultaneously is analyzed; if the corresponding chromatographic peaks appear simultaneously and the total peak area is greater than 30%, the pitch flue gas is determined as low risk. The low-toxicity characteristic fingerprint spectrum unique to 30# hard pitch is used as an evaluation benchmark, and scientific basis is provided for identification of low-emission pitch materials and health protection of construction personnel.
Owner:YANGZHOU UNIV

Silicon carbide support and its use in hydrogenation catalysts

PendingCN122273551APtru catalystMeth-
This invention belongs to the field of new material preparation and application, specifically relating to a silicon carbide support and its application in hydrogenation catalysts. Using water glass as the silicon source, the pH of the water glass is adjusted to 7.0 with 10% dilute nitric acid. After filtration, washing, and further filtration, a slurry is obtained. Then, methylcellulose is used as the carbon source and mixed with the slurry. After drying, it is calcined at high temperature in a flowing inert atmosphere to form stable carbon-containing silicon carbide powder. Then, methylcellulose is used as a binder for kneading and extrusion molding, followed by high-temperature calcination in air to obtain the desired silicon carbide support. This SiC support has a high specific surface area and, when used in the preparation of hydrogenation catalysts, can effectively reduce the sulfuric acid color of octanol (octenal hydrogenation product) and effectively improve the ultraviolet light transmittance of ethylene glycol (ethylene glycol hydrogenation refining product).
Owner:CHANGZHOU UNIV

Soothing, makeup-keeping and sunscreen makeup base cream and preparation method thereof

ActiveCN119564522Agood sun protectionLong lastingCosmetic preparationsToilet preparationsBase creamAdipic acid
The invention relates to the field of cosmetics for skin, in particular to soothing, makeup-holding and sun-screening makeup base cream and a preparation method of the soothing, makeup-holding and sun-screening makeup base cream. The sun screen is prepared from the following raw materials: butanediol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenyl benzimidazole sulfonic acid, butyl octanol salicylate, diisopropyl sebacate, diisopropyl adipate, a vinyl polydimethylsiloxane / polymethylsilane silsesquioxane cross-linked polymer, ethylhexyl triazinone and p-hydroxyacetophenone, and the sun screen is prepared from the following raw materials: ethylene glycol, isododecane, butyl octanol salicylate, phenyl benzimidazole sulfonic acid, butyl octanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane and polymethylsilane silsesquioxane. The traditional Chinese medicine composition is prepared from the following raw materials: disteardimonium hectorite, aluminum hydroxide, kava pepper leaf / root / stem extract, radix gentianae extract and water. The make-up base prepared by the invention has good soothing, makeup-holding and sunscreen effects, has excellent free radical resisting and moisturizing effects, is easy to smear, and improves the skin glossiness to a certain extent.
Owner:HANGZHOU BABI TECH CO LTD +2

A method for the scale-up preparation of dimethylheptyl methylphosphonate

ActiveCN116925137BGroup 5/15 element organic compoundsPhosphorous acidMethylating Agent
The application discloses an amplification preparation method of dimethylheptyl methylphosphonate, and belongs to the technical field of medical intermediates. The core point of the application is that 2-octanol and phosphorus trichloride are used as raw materials, and tri-2-octyl phosphite is generated in an organic solvent in the presence of a catalyst A, then the tri-2-octyl phosphite is reacted with a methylating agent in the presence of a catalyst B to generate dimethylheptyl methylphosphonate. The method avoids the use of dangerous reagents and expensive reagents, reduces the raw material cost, reduces the generation amount of isomers, improves the reaction yield, greatly reduces the amount of three wastes, and makes the whole preparation process more green and environment-friendly. The process is simple and reliable, easy to industrial production, and provides a new reaction path for the synthesis of dimethylheptyl methylphosphonate.
Owner:SHANGHAI ZAIQI BIO TECH

Catalyst for catalyzing recombination decomposition of butanol and octanol residual liquid and preparation method of catalyst

The invention relates to a catalyst for catalyzing recombination and splitting of butanol and octanol raffinate and a preparation method thereof, the catalyst comprises a catalyst carrier, a catalyst active center and a cocatalyst, the catalyst active center is titanium oxide, the cocatalyst is one or more of iron, cobalt, nickel, manganese, copper, molybdenum, tungsten, tin and oxides thereof, and the catalyst carrier is titanium oxide. The catalyst carrier is one or more of aluminum oxide, silicon oxide, magnesium-aluminum hydrotalcite, hydroxyapatite, a Y-type molecular sieve, an A-type molecular sieve, ZSM-5, a Beta-molecular sieve, coconut shell charcoal, XC-72R and XC-72. The catalyst disclosed by the invention is good in effect of catalyzing the recombination decomposition of the butanol and octanol residual liquid and long in service life, can be used for continuous flow catalytic cracking reaction of the butanol and octanol residual liquid heavy components, realizes large-scale continuous cracking treatment of the butanol and octanol residual liquid heavy components, remarkably reduces the recombination decomposition cost of the butanol and octanol residual liquid, and has a wide application prospect. The economic benefits of the heavy components in the butanol and octanol residual liquid are improved.
Owner:ZHANGJIAGANG HUACHANG NEW MATERIAL TECH CO LTD +1

Water self-healing microcapsule, electric tree damage self-repairing coating and preparation method of water self-healing microcapsule and electric tree damage self-repairing coating

PendingCN120571518ATransportation and packagingMixersEthyl phenylacetatePtru catalyst
The invention discloses a water self-healing microcapsule, an electrical tree damage self-repairing coating and a preparation method thereof, and the preparation method comprises the following steps: mixing lauryl sodium sulfate, sodium hydroxide and deionized water, and stirring in a water bath to obtain a water phase solution; the preparation method comprises the following steps: adding polyisocyanate and octadecanol into ethyl phenylacetate, stirring, then adding isophorone diisocyanate, dropwise adding fluorescent dye, and stirring to obtain an oil phase solution; mixing the water-phase solution and the oil-phase solution, adding n-caprylic alcohol, cooling to room temperature, washing with absolute ethyl alcohol and deionized water respectively, removing residual liquid through low-pressure suction filtration, and drying a solid part to obtain the water self-healing microcapsule. The microcapsule disclosed by the invention is a water self-healing type microcapsule, and the microcapsule can be used for self-repairing electrical tree damage in the coating without a catalyst, and has a good self-repairing effect.
Owner:GUIZHOU POWER GRID CO LTD

Method for removing fishy smell of chicken gizzards through multi-bacterium combined fermentation

The invention discloses a method for removing the fishy smell of chicken gizzards through multi-bacterium combined fermentation, and belongs to the technical field of poultry byproduct processing. According to the method disclosed by the invention, the chicken gizzards are subjected to fishy smell removal treatment by compounding the saccharomycetes Y4-1 and the bacillus SB. After fishy smell removal treatment, the content of key fishy smell substances including 1-octylene-3-alcohol, octanol, hexanal, nonanal and heptanal is greatly reduced, the total content is reduced from 25.15 mu g / g to 6.02 mu g / g and is reduced by 76.06%, heptanol, geranyl acetone, methyl heptanoate, methyl caprylate, glycerol monooleate, trans-2-decenal, 2-undecenal and other substances are completely removed, and the content of the key fishy smell substances is reduced by 76.06%. Meanwhile, elegant aroma components such as benzaldehyde and phenylacetaldehyde are generated. In conclusion, the saccharomycetes Y4-1 and the bacillus SB are compounded to remove fishy smell, so that the fishy smell substances of the chicken gizzards can be effectively removed, the flavor of the chicken gizzards can be further improved, and the edible value of the chicken gizzards is improved.
Owner:BEIJING TECH & BUSINESS UNIV