617 results about "Acetophenone" patented technology

The invention discloses a method for catalytically oxidizing lignin to depolymerize into an aviation oil intermediate by using a cellulose carbon aerogel supported copper nano-catalyst. Comprising the following steps: (1) dissolving cellulose powder into a mixed alkali solution of NaOH and urea, and stirring at low temperature to obtain a clear and transparent cellulose solution; and washing to be neutral to obtain well dispersed cellulose suspension. And (2) carrying out suction filtration molding, and freeze-drying for a period of time to obtain the cellulose aerogel. And (3) immersing in an ethanol solution of copper nitrate for ultrasonic treatment, and drying in a vacuum drying oven. And (4) carrying out high-temperature calcination in an N2 atmosphere to obtain a catalyst which is marked as Cu / CA. And (5) the catalyst can efficiently catalyze a Fenton-like reaction to oxidize a dimer model compound of lignin in acidic, neutral and alkaline environments to obtain products including benzoic acid, acetophenone, benzyl alcohol, phenol and the like, the required hydrogen peroxide concentration is low, and the catalyst has the advantages of simple process, high catalytic activity, low cost and the like, can be used for effectively degrading lignin to prepare aviation oil intermediates, and has wide application prospects. And repeated cyclic utilization is realized.

The invention provides an additive composition containing a bioactive enzyme and a preparation method of the additive composition, and belongs to the technical field of biological enzymes. The preparation method comprises the following steps: fixing phytic acid and cyclodextrin on hydroxyapatite, modifying with tannic acid, reacting with dithiothreitol modified lysozyme to prepare an immobilized compound, adding 2, 2-dimethoxy-2-phenylacetophenone and methyl methacrylate, and carrying out irradiation reaction with an ultraviolet lamp to prepare the additive composition containing the bioactive enzyme. The broad-spectrum antibacterial property and the antiviral property of the lysozyme are greatly improved, the sterilization effect on gram negative bacteria is obviously improved, meanwhile, the stability of enzyme is greatly improved, the enzyme is not prone to inactivation, the preservation time of the enzyme is prolonged, the application effect of the enzyme is widened, meanwhile, the lysozyme has good killing capacity on oral bacteria and viruses, the addition of preservatives is reduced, and the cost is reduced. The cleaning effect and stability of the product are improved, tooth demineralization can be prevented, decayed teeth can be prevented, and wide application prospects are achieved.

The invention belongs to the technical field of cosmetics, and discloses skin-tightening and anti-wrinkle essence. The skin-tightening anti-wrinkle essence is prepared from the following raw materials in percentage by mass: 1.5 to 2.5 percent of acetyl hexapeptide-8, 2.0 to 3.0 percent of palmitoyl pentapeptide-4, 3.0 percent of hydroxypropyl tetrahydropyrantriol, 2.0 percent of lipidosome-coated vitamin C ethyl ether, 0.5 percent of resveratrol PLGA microspheres, 0.8 percent of ceramide NP, 1.2 percent of pachymaran, 5.0 percent of glyceryl polyether-26, 0.3 percent of sodium hyaluronate, 0.5 percent of p-hydroxyacetophenone and 1, 3-propanediol, 0.5 percent of sodium hyaluronate, 0.5 percent of sodium hyaluronate, 0.5 percent of sodium hyaluronate and the balance of water. The 1, 2-hexanediol accounts for 0.6%, and the balance is deionized water. Multi-target anti-wrinkle, deep moisturizing and long-acting repairing are achieved by scientifically compounding active ingredients such as acetyl hexapeptide-8 and palmitoyl pentapeptide-4 and combining a lipidosome wrapping technology and a nano-microsphere slow release technology, the preparation process comprises the steps of lipidosome homogenization, nano-microsphere multiple emulsion method and low-temperature emulsification, the ingredient stability and transdermal efficiency are ensured, and the skin care effect is good. Experiments prove that the essence can significantly improve skin elasticity and reduce wrinkles, and has a significant anti-aging effect.

The invention discloses a preparation method and application of a photo-thermal dual-response membrane material, and relates to the field of membrane materials. When the photo-thermal double-response membrane material is prepared, a photo-thermal material firstly reacts with 4-(triethoxysilyl) aniline and then reacts with 2, 4, 6-trihydroxy-1, 3, 5-benzenetricarboxaldehyde and p-phenylenediamine, and a modified photo-thermal material is prepared; the preparation method comprises the following steps: sequentially reacting benzaldehyde with 2-hydroxyacetophenone and 3-N, N-dimethylamino methacryloyl chloride to prepare a photo-initiation monomer; the preparation method comprises the following steps: mixing N-isopropylacrylamide, a photo-initiation monomer, N, N '-methylene bisacrylamide and a modified photo-thermal material, combining with a hydrophobic substrate membrane, preparing a membrane, and finishing the surface by using 2-bromo-1-[3, 5-di (tert-butyl)-4-hydroxyphenyl] ethanone, thereby obtaining the photo-thermal dual-response membrane material. The photo-thermal dual-response membrane material prepared by the invention has the characteristics of pollution resistance, easiness in cleaning, durability, antibacterial property, metal ion recovery and low energy consumption.

The invention provides a preparation method of a block poly (biphenyl-trifluoroacetophenone-piperidone) bicontinuous hollow fiber loose nanofiltration membrane, which comprises the following steps: adding acid into biphenyl and N-methyl-4-piperidone to react to obtain a first product; adding acid into biphenyl and 2, 2, 2-trifluoroacetophenone to react, so as to obtain a second product; adding the second product into the first product, and carrying out condensation polymerization to obtain a PBTbBP block polymer; dissolving the PBTbBP block polymer in a solvent, and defoaming to obtain a membrane casting solution; spinning the membrane casting solution and the core solution to obtain membrane filaments; and immersing the membrane filaments in a coagulating bath, and carrying out phase separation. According to the preparation method, biphenyl, a hydrophobic trifluoroacetophenone monomer and a hydrophilic N-methyl piperidone monomer are subjected to superacid catalysis Friedel-Crafts reaction and are subjected to step-by-step copolymerization to obtain the amphiphilic block polymer PBTbBP. The membrane has efficient mass transfer channels and excellent membrane surface hydrophilicity, and the separation capacity of dye molecules and salt ions and the water permeability are improved.

The invention relates to a compound preservative and moisturizing cream added with the compound preservative, and the compound preservative is prepared from the following components in parts by mass: 15-25 parts of hydroxyacetophenone, 7-35 parts of caprylyl glycol and 50-70 parts of isohexylene glycol. The invention further relates to application of the compound preservative in preparation of cream cosmetics, and the addition amount of the compound preservative in the cream cosmetics is 0.5-1 part by mass. The antibacterial spectrum of a single preservative is generally narrow, and the single preservative is only effective to some specific types of microorganisms and cannot comprehensively inhibit various microorganisms possibly existing in cosmetics. According to the invention, multiple anti-corrosion components are compounded, so that the anti-corrosion effect is synergistically improved, efficient anti-corrosion can be realized, and the safety and the environmental protection property can be ensured.

The invention discloses a beautifying essence which comprises the following components in percentage by weight: 1% of bifidus yeast fermentation liquor, 3% of boine, 2% of nicotinamide, 0.3% of gallnut extract, 1% of purslane extract, 0.3% of allantoin, 0.2% of centella asiatica extract, 0.3% of tocopherol extract, 0.5% of aesculus chinensis extract, 2% of vitamin E, 0.05% of xanthan gum, 0.05% of sodium hyaluronate, 0.2% of carbomer, 0.5% of p-hydroxyacetophenone, 0.5% of 1, 2-propylene glycol and the balance of water. The cleaning agent is prepared from, by weight, 0.5% of 1, 2-hexanediol, 5% of glycerin, 4% of PEG / PPG-14 / 7 dimethyl ether, 2.2% of glycosylglycerol, 0.2% of tetrahydroxypropyl ethylenediamine, 3% of polyglycerol-3, 0.05% of PDRN powder and the balance water. Effect evaluation test results show that the beauty essence can inhibit the activity of elastase and increase the content of type I collagen in human primary fibroblasts, so that the firming and anti-wrinkle effects are achieved.

The invention discloses bacillus subtilis and application thereof, and belongs to the technical field of microorganisms. According to the invention, a degradation strain capable of improving cellulose and lignin in cigar tobacco leaves is screened out, and after the strain is fermented, the activity of supernate cellulase, the activity of supernate laccase, the activity of supernate manganese peroxidase and the activity of supernate lignin peroxidase are respectively 11.21 U / mL, 26.82 U / mL, 6.31 U / mL and 3.78 U / mL. After fermentation optimization, the activity of cellulase, the activity of laccase, the activity of manganese peroxidase and the activity of lignin peroxide are 30.29 U / mL, 42.69 U / mL, 8.96 U / mL and 5.74 U / mL respectively. The strain Y-C4 is applied to tobacco leaf fermentation, fermented tobacco leaves generate substances including solanesol, acetophenone, geranyl acetone, beta-ionone, myristic aldehyde and the like, and the strain has an excellent application prospect in tobacco leaf fermentation.

The invention provides an imidazo [1, 2-alpha] pyridine stimuli-responsive molecule with a D-A twisted structure as well as a preparation method and application of the imidazo [1, 2-alpha] pyridine stimuli-responsive molecule, belongs to the technical field of intelligent materials, and is used for solving the technical problem that intelligent materials for developing stimuli-responsive molecules for data encryption and information anti-counterfeiting are insufficient. The preparation method of the compounds N1 and N3 comprises the following steps: 2-aminopyridine and 2, 4 '-dibromoacetophenone are subjected to an amphiphilic reaction to obtain a compound a; the compound a and POCl3 are subjected to a Vilsmeier-Haack reaction, and a compound b is obtained; carrying out Suzuki coupling reaction on the compound a or the compound b and triphenylamine boric acid to obtain a compound N1 or N2; the compound N2 and malononitrile are subjected to a Knovenagel condensation reaction, and a compound N3 is obtained. The compound prepared in the invention has good fluorescence emission capability in a solution and a solid state and a grinding solvent acid / alkali stimulated fluorescence discoloration behavior, and can realize good data encryption and information anti-counterfeiting.

The invention provides an anti-hair-loss and hair-growing product containing plant extract components and a preparation method thereof, and relates to the field of wash supplies, the anti-hair-loss and hair-growing product is prepared from the following raw materials by weight: 50-80 parts of water, 5-10 parts of propylene glycol, 1-5 parts of 1, 3-propylene glycol, 1-5 parts of 1, 3-propylene glycol, and 1-5 parts of 1, 3-propylene glycol. The composition is prepared from the following components in parts by weight: 0.1 to 1 part of 1, 2-pentanediol, 0.1 to 1 part of pyrrolidinyl diaminopyrimidine oxide, 0.1 to 0.5 part of diaminopyrimidine oxide, 0.01 to 0.02 part of caffeine, 0.01 to 0.1 part of adenosine, 0.05 to 0.2 part of vitamin B6, 0.01 to 0.5 part of biotin tripeptide-1, 0.1 to 1 part of dipotassium glycyrrhizinate, 0.02 to 0.05 part of ethylenediamine tetraacetic acid, 0.1 to 1 part of D panthenol, 0.2 to 1 part of p-hydroxyacetophenone, 0.01 to 1 part of 1, 2-pentanediol, 0.1 to 1 part of 1, 2-pentanediol, 0.1 to 1 part of 2, 2-pentanediol, 0.1 to 1 part of 2, 2-pentanediol, 0.1 to 1 part of 2, 2- The composition comprises the following components in parts by weight: 1-2 parts of 1, 2-hexanediol, 0.1-0.5 part of citric acid, 1-2 parts of 1, 3-butanediol, 0.01-1 part of NMN and 3-5 parts of a plant extract. According to the present invention, the extraction method of the plant extract in the raw materials is specifically adjusted so as to significantly reduce the content of the pigment and the odor substance in the extract, such that the obtained hair growing liquid has characteristics of good hair growing effect, light color and light drug taste, can be easily accepted by consumers, and is suitable for large-scale promotion and application.

The invention provides a method for comprehensively utilizing phenolic ketone tar and a petroleum fracturing proppant, and the method comprises the following steps: (1) mixing phenolic ketone tar and an acid catalyst to carry out a first heating reaction, and then adding an aldehyde compound to carry out a second heating reaction to obtain a phenolic resin mixture; (2) carrying out negative pressure rectification on the phenolic resin mixture to obtain a tower top material and a tower kettle material; wherein acetophenone is obtained after the tower top material is layered, and the tower kettle material comprises phenolic resin; (3) carrying out ring-opening reaction on the mixed phase transfer catalyst, epoxy chloropropane and phenolic resin, then adding alkali to carry out ring-closing reaction, and separating to obtain novolac epoxy resin; and (4) mixing the curing agent, the accelerant and the novolac epoxy resin for stirring reaction to obtain the petroleum fracturing propping agent. According to the method provided by the invention, acetophenone in the phenolic ketone tar can be separated out, the petroleum fracturing propping agent can be produced at the same time, the recovery energy consumption can be reduced, no solid waste is discharged, and the environmental protection requirement is met.

The present invention discloses a strong, non-toxic, antibacterial and antiviral nano-functional material and a preparation method thereof. The nano-functional material is green, non-toxic and harmless, and its antibacterial and antiviral effect can reach more than 99%. The new nano-material innovatively uses the natural antibacterial agent meta-dichlorostyrene meta-dichloroacetophenone as the main body of the material to exert its antibacterial and antiviral effects. This makes the new nano-material not only have extremely strong antibacterial and antiviral effects, but also as a natural antibacterial agent, when it is used as a textile material, it can be non-toxic and harmless to the human body, green and healthy. It has a better inhibitory effect on both Gram-negative and Gram-positive bacteria than nano-copper oxide and meta-dichlorophenylethanol and meta-dichloroacetophenone. The present invention also provides a preparation method for the nano-functional material, which includes chemical reaction processes such as boron hydrolysis reaction, catalytic oxidation reaction, electrocarboxylation reaction, and esterification reaction.

The present invention relates to detergents and cleaning compositions that comprise a surfactant, an anti-redeposition agent, and an effective amount of 1,2-heptanediol and / or 2,3-heptanediol or a specific type of anti-redeposition boosting agent, such as alkanediols, glyceryl caprylate, 4-hydroxyacetophenone, ethyl hexyl glycerin or tropolone, and the use of said detergents and cleaning compositions for the preparation of a detergent and cleaning product for household, institutional and industrial application. Furthermore, the present invention relates to a method of treating a stained and / or soiled substrate, using the detergents and cleaning compositions according to the present invention. Additionally, the present invention relates to the use of 1,2-heptanediol and / or 2,3-heptanediol or of specific substances as defined herein for boosting the activity of an anti-redeposition agent in a detergent and cleaning composition and / or for improving cleaning performance of a detergent and cleaning composition. Moreover, the present invention relates to a method of boosting the activity of an anti-redeposition agent in a detergent and cleaning composition and / or of improving cleaning performance of a detergent and cleaning composition by adding an effective amount of 1,2-heptanediol and / or 2,3-heptanediol or of specific anti-redeposition agents, such as alkanediols, glyceryl caprylate, 4-hydroxyacetophenone, ethyl hexyl glycerin or tropolone to said detergent and cleaning composition. Finally, the present invention relates to the use of 1,2-heptanediol, 2,3-heptanediol or a mixture comprising 1,2-heptanediol and 2,3-heptanediol or at least one anti-redeposition boosting agent, such as alkanediols, glyceryl caprylate, 4-hydroxyacetophenone, ethyl hexyl glycerin or tropolone as anti-redeposition agent.

The present application relates to the field of cosmetic technology, in particular to a quick-drying and shaping spray and a preparation method thereof, in particular to a hair styling product which is quickly dried, permanently shaped and has hair care effect through the synergistic effect of specific film-forming agents and volatile systems, comprising the following components: ethanol 30-50%, aminomethyl propanol 0.1-1%, butanediol 1-5%, octyl acrylamide / acrylate / methyl acrylate copolymer 5-15%, PEG-12 dimethicone 0.5-2%, keratin 0.1-2%, hydrolyzed keratin 0.1-2%, oxidized keratin 0.1-2%, aloe barbadensis leaf extract 0.5-3%, selaginella kurata extract 0.5-3%, radix falatoniae extract 0.5-3%, radix salviae miltiorrhizae extract 0.5-3%, water 20-40%, essence 0.1-2%, cetrimonium chloride 0.1-1%, phenoxyethanol 0.5-1.5%, propylene glycol 1-5%, p-hydroxyacetophenone 0.5-1.5%, chlorphenesin 0.1-0.5%, ethylhexylglycerin 0.5-1.5%.

The invention discloses a method for preparing a smoke dust filtering material by recycling waste aramid fiber fabric, and relates to the technical field of high polymer materials. When the smoke dust filtering material is prepared, waste aramid fiber fabric is cut, washed and dried, and then reacts with 3-chloropropyl isocyanate and dibutyl (allyl) phosphine in sequence to prepare modified aramid fiber; the preparation method comprises the following steps: enabling graphene oxide powder to react with 3-aminopropyltrimethoxysilane to prepare pre-modified graphene oxide, and then enabling the pre-modified graphene oxide to react with 3-aminopropyltrimethoxysilane and mercaptopropyltrimethoxysilane to prepare modified graphene oxide; the modified aramid fibers and the modified graphene oxide are mixed and then subjected to electrostatic spinning, and an aramid nanofiber membrane is prepared; and immersing the aramid nanofiber membrane into a 2, 2-dimethoxy-2-phenyl acetophenone solution, and carrying out ultraviolet radiation, so as to obtain the smoke dust filtering material. The smoke dust filtering material prepared by the invention has good filtering performance, flame retardant property, antibacterial property, mechanical property and heavy metal ion adsorption performance.

The invention discloses an environment-friendly p-hydroxyacetophenone production process, and particularly relates to the technical field of p-hydroxyacetophenone production, which comprises the following steps: step 1, respectively putting dissolved phenol and acetic anhydride into a synthesis reaction kettle, stirring and heating to 128 DEG C, refluxing for 5 hours at normal pressure, then carrying out heat preservation treatment, and reacting to generate phenyl acetate; 2, cooling phenyl acetate generated by the reaction to 60 DEG C, washing with water, standing for layering, and discharging phenyl acetate to generate a small amount of by-products containing 90% of glacial acetic acid; and 3, pumping the dehydrated phenyl acetate into a reaction kettle by a vacuum pump, gradually adding aluminum trichloride, then adding acidic water for hydrolysis, cooling to 60 DEG C, and discharging to obtain a liquid crude product of p-hydroxyacetophenone and o-hydroxyacetophenone. The environment-friendly performance of implementation is good, conditions needed by the technology are mild, the unstable condition is not prone to occurring in the operation process, and the practical application effect of the method is ideal.

The invention discloses preparation and application of a reductive amination catalyst. The preparation method of the catalyst comprises the following steps: step 1, preparing an SrTiO3 carrier; step 2, loading a nickel source into the prepared SrTiO3 carrier to form a nickel-loaded SrTiO3 catalyst precursor; and step 3, roasting the SrTiO3 catalyst precursor to obtain the SrTiO3 loaded nickel catalyst. Large-scale production of the non-noble metal catalyst is realized by adopting a co-precipitation method and an impregnation method which are simple in process and environment-friendly under the condition of room temperature, the obtained material can be used for reductive amination reaction of acetophenone under the condition of taking water as a solvent and shows excellent catalytic performance, and after 50 times of application, the acetophenone conversion rate is gt; the selectivity of alpha-phenylethylamine is gt; the selectivity of the alpha-phenethyl alcohol is 1t; and 2%.

The invention relates to a catalyst for preparing acetophenone by efficiently catalyzing selective oxidation of ethylbenzene in a hydrocarbon selective oxidation reaction, especially under a mild condition, a preparation method of the catalyst, and application of the catalyst provided by the invention. According to the catalyst for catalyzing selective oxidation of ethylbenzene to prepare acetophenone, monatomic Fe is anchored on a nitrogen-doped carbon carrier through a Fe-Nx coordination bond, the Fe content is 4-23 wt%, the BET specific surface area is 200-500 m / g, and Fe exists in Fe < + > and Fe < + > valence states. The catalyst can be used for preparing acetophenone through selective oxidation of hydrocarbons and has the advantages of being high in catalytic performance, stable in structure and good in substrate universality.

The invention relates to skin care products, in particular to a preparation method and application of a natural, mild and non-irritant soothing composition. The invention relates to a natural mild non-irritant soothing composition, which is prepared from the following components in parts by weight: 10 to 50 parts of polyhydric alcohol, 0.025 to 2.5 parts of kava pepper root extract, 0.1 to 10 parts of swertia bimaculata extract, 0.1 to 10 parts of licochalcone A, 0.2 to 2 parts of 1, 2-hexanediol and 0.2 to 2 parts of p-hydroxyacetophenone. The invention proves that the soothing composition composed of the kava pepper root extract, the swertia extract and the licochalcone A can quickly and effectively solve the technical problems in the prior art, and the soothing effect of the soothing composition is verified from three common skin sensitivity problems of stabbing pain, pruritus and redness.

The invention discloses an anti-ultraviolet functional plastic particle and a preparation method thereof, and belongs to the technical field of polymer modified materials. The plastic particles are prepared from polyolefin resin subjected to organic silicon-phenolic hydroxyl synergistic grafting modification, 2, 4-dihydroxyacetophenone, an antioxidant, a hindered amine light stabilizer, a lubrication dispersant and an anti-yellowing agent. A siloxane-phenolic hydroxyl bifunctional chain segment is introduced into the surface of a molecular chain of the polyolefin resin subjected to organic silicon-phenolic hydroxyl synergistic grafting modification, so that a flexible-rigid synergistic interface layer is formed; the 2, 4-dihydroxyacetophenone has a hydroxyl and carbonyl conjugated structure and can form hydrogen bond complexation with a matrix, so that free radical degradation is effectively inhibited. The preparation method disclosed by the invention comprises the following three steps: grafting reaction of polyolefin resin subjected to organic silicon-phenolic hydroxyl synergistic grafting modification, high-speed mixing and melt blending granulation. Tests show that after the plastic particles are subjected to 365nm ultraviolet radiation for 500h, the tensile strength retention rate exceeds 94%, the chromatic aberration delta E is less than or equal to 1.5, the oxidation induction time is prolonged to 55min, and the plastic particles have excellent ultraviolet aging resistance, yellowing resistance and thermal oxidation stability.

The invention relates to a urine metabolism combined marker for diagnosing bladder cancer and a screening method of the urine metabolism combined marker. The urine metabolism combined marker is prepared from 2-methyl furan, dimethyl disulfide, octylene and acetophenone. The method for screening the urine metabolism combined marker comprises the following steps: carrying out chromatographic separation and mass spectrometry detection on a urine sample on the basis of a headspace automatic sampler in combination with a chromatographic column and a photochemical ionization time-of-flight mass spectrometry, preprocessing mass spectrometry data, and extracting spectrum peak data of metabolites in urine; the urine metabolism combination marker for diagnosing bladder cancer is obtained through further statistical analysis. The screening method of the urine metabolism combined marker for diagnosing the bladder cancer has the advantages of non-invasiveness, high-throughput detection, simplicity in operation and accurate result, and has a wide application prospect.

The invention provides mint hydrogel for diminishing inflammation and relieving itching and a preparation method thereof. The hydrogel is prepared from 10 to 30 parts of herba menthae extract, 5 to 15 parts of melaleuca alternifolia leaf water, 15 to 25 parts of aloe vera gel, 8 to 15 parts of glycerol, 2 to 6 parts of essential oil compound, 1 to 4 parts of sweet-scented osmanthus extract, 1 to 5 parts of artemisia indica extract, 0.1 to 0.5 part of cross-linking agent, sucrose stearate, sorbic anhydride olivic acid, p-hydroxyacetophenone and the like. The essential oil compound is subjected to beta-cyclodextrin / sodium alginate double-embedding treatment, and the cross-linking agent is chitosan grafted hyaluronic acid. The preparation process comprises the steps of composite water phase preparation, essential oil activation, gradient mixing of extracts, cross-linking reaction, high-pressure homogenization, gradient photocuring and the like. Tests show that the maximum anti-inflammatory swelling inhibition rate of the hydrogel reaches 68.9%, the maximum itching relieving rate of the hydrogel reaches 80.6%, the anti-inflammatory and itching relieving effects can be effectively achieved, and the performance of the hydrogel is improved through the cooperation of all the raw materials and the technology.

The invention discloses a skin-tightening anti-wrinkle essence and a preparation process thereof, and relates to the technical field of cosmetic preparation, and the preparation process comprises the following steps: obtaining animal umbilical cord tissue, culturing, collecting cell culture supernatant after culture, carrying out low-speed centrifugation to remove cells and dead cells, and carrying out concentration, filtration and sterilization through a tangential flow membrane technology to obtain the skin-tightening anti-wrinkle essence. The animal umbilical cord extract is obtained; the preparation method comprises the following steps: mixing the animal umbilical cord extract with water, butanediol, glycerol, hydroxypropyl tetrahydropyrantriol, 1, 2-hexanediol, trehalose, p-hydroxyacetophenone, allantoin, hydrolyzed sodium hyaluronate, sodium hyaluronate, tetrahydromethylpyrimidine carboxylic acid, xanthan gum and essence, homogenizing under a stirring condition, and standing for defoaming. By constructing an active stable microenvironment and an efficient transdermal delivery system, the technical problem that the animal umbilical cord extract serving as a core component is easy to inactivate and difficult to absorb is solved, and a faster and more stable skin structure remodeling effect is realized by utilizing the synergistic effect of the animal umbilical cord extract and functional components.

Disclosed is the use of a dividing-wall column in a process for co-producing propylene oxide and styrene monomer. Feed streams to a dividing-wall column comprise a bottoms product produced in recovering crude propylene oxide from an epoxidation reaction product, a hydrogenated byproduct styrene monomer production, and a light fraction of a bottoms product withdrawn from the dividing-wall column. Products from the dividing-wall column comprise an overhead product comprising ethylbenzene for recycle to an oxidation zone, an intermediate product comprising methylbenzyl alcohol and acetophenone as feed to a dehydration zone to produce styrene monomer, and a bottoms product comprising methylbenzyl alcohol and heavy materials.

The present invention relates to the field of skin cosmetics, and in particular to a soothing, long-lasting, sun-protective isolation cream and its preparation method. The isolation cream's raw materials include butylene glycol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosspolymer, ethylhexyl triazone, p-hydroxyacetophenone, disteardimonium hectorite, aluminum hydroxide, Piper mesenteriae leaf / root / stem extract, Gentiana scabra extract, and water. The isolation cream prepared by the present invention has good soothing, long-lasting, and sun-protective effects, as well as excellent free radical resistance and moisturizing effects. It is easy to apply and can improve skin gloss to a certain extent.

The invention discloses an antioxidant and firming polypeptide composition and a preparation method thereof, and the antioxidant and firming polypeptide composition comprises the following components in percentage by weight: 50-75% of water, 5-10% of butanediol, 0.1-3% of panthenol and 0.5-1% of p-hydroxyacetophenone. 0.2 to 8% of hydroxyethyl piperazine ethanesulfonic acid; the composition is prepared from the following components in percentage by weight: 20-30% of an eggshell membrane extract, 0.01-2% of nonapeptide-1, 0.01-5% of acetyl hexapeptide-8 and 0.5-1% of 1, 2-hexanediol; the preparation method comprises the following steps: putting water, butanediol, panthenol and p-hydroxyacetophenone into a container, and stirring at a constant temperature to obtain a first mixed solution; adding hydroxyethyl piperazine ethanesulfonic acid into the first mixed solution, and uniformly stirring to obtain a second mixed solution; adding an eggshell membrane extract, nonapeptide-1, acetyl hexapeptide-8 and 1, 2-hexanediol into the second mixed solution, and uniformly stirring to obtain the antioxidant and firming polypeptide composition; the antioxidant and firming polypeptide composition disclosed by the invention has the functions of resisting oxidation, firming and brightening the skin; the method for preparing the antioxidant and firming polypeptide composition is simple and convenient for large-scale production.

The invention discloses a method and system for continuously synthesizing 2, 4-dichloroacetophenone, and the method for continuously synthesizing 2, 4-dichloroacetophenone comprises the following steps: S1, mixing m-dichlorobenzene and a catalyst to form a turbid liquid, and continuously inputting the turbid liquid into a tubular reactor; s2, enabling gas-phase acetyl chloride to pass through a micro-interface generator to form micron-sized microbubbles, continuously inputting the micron-sized microbubbles into a tubular reactor, and carrying out mixed reaction on the micron-sized microbubbles and the turbid liquid to obtain a mixed reaction liquid; and S3, continuously inputting the mixed reaction liquid and water into a hydrolysis reactor, and carrying out hydrolysis and separation to obtain 2, 4-dichloroacetophenone. According to the invention, the traditional kettle type stirring reaction is changed into micro-interface reaction, and the mass transfer area and the total mass transfer rate among multiple phases can be multiplied, so that the reaction rate is greatly improved, the side reaction is effectively controlled, and meanwhile, the product yield, the reaction safety and the like are improved.

The utility model relates to separation and extraction equipment for 2, 4-dichloro-5-fluoroacetophenone synthetic liquid, which is applied to the technical field of extraction and separation equipment, and realizes that after a scraper blade is turned upwards by 90 degrees, a material is placed in a tray, then the tray is sleeved on a mounting shaft, the bottom is placed on a bracket to support the bottom, and at the moment, the scraper blade is turned and reset, so that the material is separated from the material. The scraping teeth are located in the trays and make contact with the bottoms of the scraping teeth, then the first clamping block at the bottom of the other mounting shaft is clamped in the inserting groove in the top of the lower mounting shaft to be clamped and fixed, the upper mounting shaft is sleeved with one tray containing the materials again, and multiple layers of the trays can be sequentially placed to dry the materials; and at the moment, a heater and a servo motor are started, the heater dries the materials, the servo motor drives a scraper to rotate, the materials in the tray are turned over, the materials can be evenly heated in the drying process, and the problem that part of the areas are excessively dried, and part of the areas are not fully dried is avoided.

The present invention relates to detergents and cleaning compositions comprising a degreasing agent, an effective amount of a specific type of degreasing enhancer, such as an alkanediol having a carbon chain of 5 to 14 carbon atoms, glyceryl caprylate, 4-hydroxyacetophenone, ethylhexylglycerin, tropolone, or a mixture of the aforementioned degreasing enhancers, and a surfactant, as well as the use of the aforementioned detergents and cleaning compositions for preparing detergents and cleaning products for household, institutional and industrial applications. Furthermore, the present invention relates to methods for treating stained and / or soiled substrates using the detergents and cleaning compositions according to the present invention. In addition, the present invention relates to the use of specific enhancing substances, as defined herein, for enhancing the degreasing power of degreasing detergents and cleaning compositions and for improving the cleaning performance of degreasing detergents and cleaning compositions. Furthermore, the present invention relates to a method for enhancing the degreasing power of degreasing detergents and cleaning compositions and improving the cleaning performance of degreasing detergents and cleaning compositions by adding an effective amount of a specific degreasing enhancer, for example, an alkanediol having a carbon chain of 5 to 14 carbon atoms, glyceryl caprylate, 4-hydroxyacetophenone, ethylhexylglycerin, tropolone, or a mixture of the aforementioned degreasing enhancers, to the aforementioned detergents and cleaning compositions. Finally, the present invention relates to the use of at least one degreasing enhancer, for example, an alkanediol as defined herein, glyceryl caprylate, 4-hydroxyacetophenone, ethylhexylglycerin, tropolone, or a mixture of the aforementioned degreasing enhancers as defined herein, as a substitute for a degreasing agent and / or a solubilizer.

The invention relates to the technical field of cosmetics, and particularly discloses anti-wrinkle cream containing sequoia stem fermentation products and a preparation method of the anti-wrinkle cream. The wrinkle removing cream containing the sequoia stem fermentation product is prepared from the following raw materials in percentage by mass: a material A: glycerol, butanediol, p-hydroxyacetophenone YS028, an ammonium acryloyldimethyl taurate / VP copolymer, p-hydroxyacetophenone YS008 and the balance of water; the material B is prepared from cetostearyl alcohol, an emulsifying agent MONTANOV202, butyrospermum parkii butter, isopropyl myristate, C10-18 fatty acid triglyceride, polydimethylsiloxane, ethylhexyl palmitate and XIAMETERPMX-0345Z Fluid; the material C is prepared from a material D and a material E; the material C is prepared from a sequoia stem fermentation product, Naturalpenet 2020 and SEPIGEL305; the material D is prepared from YONOME SPE II, Alps mountain leucas, ULA-L1004 coated ceramide, anti-wrinkle base peptide, super-oinmetidyl-D2, Chinese prescription hexyl A powder, XYREPIOR, annoine TM, essence and methyl dihydrojasmonate; the material D is prepared from YONOME SPE II, Alps mountain leucas, ULA-L1004 coated ceramide, anti-wrinkle base peptide, super-oinmetidyl-D2, Chinese prescription hexyl A powder, XYREPIOR, annoine TM In addition, the preparation method has the advantage of improving the wrinkle removing effect of the wrinkle removing cream.