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58results about How to "Raw materials are common" patented technology

Preparation method of carboxymethyl-beta-cyclodextrin functionalized magnetic mesoporous silicon microspheres

The invention provides a preparation method of carboxymethyl-beta-cyclodextrin functionalized magnetic mesoporous silicon microspheres. The method includes the steps of: 1) preparing Fe3O4 via a coprecipitation method; 2) preparing SiO2-coated Fe3O4 particles (Fe3O4@SiO2), namely, magnetic silicon; 3) preparing mesoporous SiO2-coated Fe3O4@SiO2 particles (Fe3O4@SiO2@SiO2), namely, magnetic mesoporous silicon; 4) preparing carboxymethyl-beta-cyclodextrin (CM-beta-CD) via a wet process or a dry process; 5) preparing carboxymethyl-beta-cyclodextrin functionalized magnetic mesoporous silicon microspheres (Fe3O4@SiO2@SiO2-CM-beta-CD). In the invention, with Fe3O4 as an object, the functionalized magnetic mesoporous silicon microspheres are prepared through the coprecipitation method and Stobermethod, so that the method has simple processes and high-effective treatment, is low in cost, and supplies a new idea to preparation and application of magnetic adsorption microspheres. The product can improve effect of removing heavy metals in water by Fe3O4.
Owner:WUHAN UNIV OF TECH

Oil-well cement temperature-sensitive slow-release coagulation accelerator

The invention discloses an oil-well cement temperature-sensitive slow-release coagulation accelerator. The oil-well cement temperature-sensitive slow-release coagulation accelerator is prepared by employing an oil phase separation microcapsule technology. The method comprises the following steps: adding 3-5 weight parts of stearic acid and 100-125 weight parts of an organic solvent in a triangular flask, fully stirring the materials, heating water-bath at the temperature of 70-80 DEG C until stearic acid is fully dissolved, then adding 1-3 weight part of polyethylene glycol 4000 and 1-2 weight parts of a coagulating material, stopping stirring after 1-3 min, performing ultrasonic vibrating for 10-20 min, uniformly dispersing polyethylene glycol 4000 and the coagulating material in a solution, re-stirring the materials, and gradually cooling the material to the temperature of lower than 35 DEG C, filtering the material, and performing normal temperature drying on the material for 24 h to obtain the product. The oil-well cement temperature-sensitive slow-release coagulation accelerator has stable performance in a cement mortar, can be slowly released after reaching a preset temperature spot, has good slow releasing effect, the coagulation accelerator can obviously shorten the curing time of deep well and extradeep well after release, effectively solve the super-retarding problem of the deep well and the extradeep well, the preparation method is simple, the raw materials are common, the cost is low, the accelerator is easily popularized, and has wide market prospect.
Owner:SOUTHWEST PETROLEUM UNIV

Temperature-sensitive swelling microcapsule anti-gas-channeling agent and anti-gas-channeling cement slurry system

ActiveCN106947447AGas volume controllableStable performance on the groundDrilling compositionMicroballoon preparationCross-linkWater baths
The present invention discloses a temperature-sensitive swelling microcapsule anti-gas-channeling agent and an anti-gas-channeling cement slurry system. The temperature-sensitive expansion microcapsule anti-gas-channeling agent preparation method comprises: adding 3-4 parts of acrylonitrile, 0.4-0.5 part of methyl acrylate and 2-3 parts of methyl methacrylate to a beaker, adding 1-2 parts of lauroyl peroxide as an initiator, 10-30 parts of a low boiling point solvent as a foaming agent, and 0.1-0.2 part of 1, 4-butanediol dimethacrylate as a cross-linking agent, carrying out stirring dissolving, transferring into a glass reaction kettle, adding 20-25 parts of nano-silica as a dispersant and 300-350 parts of deionized water, carrying out a constant temperature water bath reaction for 20-24 h at a temperature of 60-70 DEG C under nitrogen protection, cooling, washing, and drying. The anti-gas-channeling cement slurry system comprises 100 parts of oil well cement, 1.5-2 parts of a fluid loss additive, 2-3 parts of a dispersant, 0.1-1 part of an anti-gas-channeling agent, 0-3 parts of a retarder, 0.2 part of a defoamer, 0-50 parts of a density adjuster, and 44 parts of water. According to the present invention, with the temperature-sensitive expansion microcapsule anti-gas-channeling agent and the anti-gas-channeling cement slurry system, the cement stone volume shrinkage can be effectively made up, the stratum fluid can be sealed, the channeling can be prevented, the occurrence of the annulus pressure phenomenon can be prevented, and the service life of the oil well can be prolonged.
Owner:SOUTHWEST PETROLEUM UNIV

Hydrangea-shaped gold nanoparticle and preparation method thereof

The invention discloses a hydrangea-shaped gold nanoparticle and a preparation method of the hydrangea-shaped gold nanoparticle. The method includes the steps that a chloroauric acid solution is added into a surface active agent hexadecyl trimethyl ammonium chloride solution, and magnetic stirring is performed; then an ascorbic acid solution is added, magnetic stirring is performed, growth temperature is adjusted and controlled, standing growth is performed, and the hydrangea-shaped gold nanoparticle is obtained through purification after an obtained solution is centrifuged and washed. The average diameter is 490 nm-812 nm, and the thickness of pedals is 20 nm-44 nm. The prepared gold nanoparticle is of the hydrangea-shaped structure and is high in yield and good in monodispersity and stability, the appearance and the optical property of the particle are controllable and adjustable, and the gold nanoparticle further has the advantages of being simple in synthetic method, mild in synthetic condition, good in stability and the like.
Owner:NANJING UNIV OF POSTS & TELECOMM

Method for preparing organic-inorganic hybrid perovskite single crystal based on two-phase process

The invention provides a method for preparing an organic-inorganic hybrid perovskite single crystal based on a two-phase process. The method comprises the following steps: by taking a halide solutioncontaining a first reactant as a lower solution layer and taking an organic matter solution containing a second reactant as an upper solution layer, reacting the first reactant and the second reactantto produce the organic-inorganic hybrid perovskite single crystal wafer at an interface contact of the lower solution layer and the upper solution layer, wherein the density of the lower solution layer is smaller than that of the upper solution layer. The crystal structure having high degree of crystallinity and consistent crystal phase can be obtained, preparation of the crystal wafer of any shape and area can be realized, crystal destruction brought by later physical machining is avoided, and the structural integrity and consistency in crystal growth are ensured. The single crystal is grownby controlling the reaction temperature and concentration. A communicating vessel is increased, the single crystal wafer having the thickness of less than 50 microns can be directly grown, the operation is simple and convenient, the needed equipment is simple, low in cost and common in raw materials, and study in the aspect of improving the efficiency of a perovskite single crystal cell is facilitated.
Owner:SHAANXI NORMAL UNIV

Nickel palladium/ silicon microchannel catalyst and application thereof on preparing electrode of integratable direct methanol fuel cell

The invention relates to the field of fuel-cell catalyst, in particular discloses a nickel palladium / silicon microchannel catalyst. The preparation thereof is as follows: the step of electroless plating deposit of a nickel palladium membrane is carried out on a silicon microchannel frame, and a nickel palladium / silicon microchannel composite material is processed by rapid annealing for 6 to 10 minutes at the temperature from 300 to 500 DEG C under the argon atmosphere. The nickel palladium / silicon microchannel catalyst can be used for preparing the electrode of the integratable direct methanol fuel cell.
Owner:EAST CHINA NORMAL UNIV

Antipruritic composition and application of same in preparation of antipruritics

The invention discloses an antipruritic composition and an application of the antipruritic composition in preparation of antipruritics. The antipruritic composition comprises 0.1-0.5 parts of triclosan, 1-8 parts of sodium bicarbonate, and 0.5-2 parts of ammonia water. According to the antipruritic composition and application of the antipruritic composition in preparation of the antipruritics, provided by the invention, triclosan is used in combination with antalkalies (sodium bicarbonate and ammonia water) to achieve good antipruritic and antioncotic effects. The antipruritic composition adopts common raw materials, is low in cost, is free of skin irritation and toxic side effect, and has a wide application prospect. Moreover, the antipruritic composition is applicable to various diseases of cutaneous pruritus and skin infection, and is particular suitable for treatment of acute pruritus caused by mosquito bites, and the curative effect is effective.
Owner:江苏普肽医药技术有限公司

Acne removing traditional Chinese medicine and preparation method thereof

The invention discloses an acne removing traditional Chinese medicine and a preparation method thereof. The acne removing traditional Chinese medicine is characterized by comprising the following components in percentage by weight: 20-25% of glabrous greenbrier rhizome, 5-10% of coix seed, 5-10% of raw garden burnet root, 5-10% of white paeony root, 10-15% of cortex phellodendri, 5-10% of dandelion, 5-10% of India madder root, 10-15% of broom cypress fruit, 10-15% of honeysuckle flower and 5-10% of pearl powder. By adopting the technical scheme, the medicine disclosed by the invention has the characteristics of common raw material, strong practicality, low cost and the like and has the advantages that the acne removing effect is remarkable and efficacies of imprint removing, skin whitening, oil control and the like are provided, so that the original lubricant good skin is restored.
Owner:倪金福

Safe and environment-friendly detergent

The invention discloses a safe and environment-friendly cleaning solution based on hemp oil (hemp seed oil). The specific invention formula includes the following components by weight: hemp oil: 0.1-100 parts; water: 0-80 parts; thickening Agent: 0-5 parts; Auxiliary agent: 0-50 parts. The cleaning liquid has common raw materials, high stability, strong decontamination ability, high degree of biodegradation, mild and comfortable, non-toxic, non-irritating, non-allergic, and can be used as a cleaning solution for kitchen utensils, tableware, tea sets and clothes in people's daily life. Ideal safe and environmentally friendly cleaning products for oil stains and pesticide residues such as vegetables and fruits.
Owner:贾志军 +1

Condiment based on enzymolysis technique and preparation method

The invention provides condiment based on an enzymolysis technique and a preparation method. The condiment consists of the following raw materials in parts by weight: 15 parts of pork, 50 parts of chicken breast meat, 25 parts of duck meat, 10 parts of hams, 15 parts of shiitake mushrooms, 30 parts of garlic, 15 parts of fresh ginger, 25 parts of white sugar, 15 parts of sodium glutamate, 2 partsof disodium 5'-ribonucleotide, and a plurality of parts of chicken skeletons and duck skeletons. According to the condiment and the preparation method disclosed by the invention, materials are boiledinto soup, and then enzymolysis is performed, so that the quantity of amino acids and the thick degree of flavor of the product namely the condiment can be increased, and the nutrient value of the product having the same quantity is also obviously increased; and besides, the raw materials of the prepared condiment are common and low in price, and the preparation technology is not tedious.
Owner:GUANGDONG YUESHIFU FLAVOR FOOD

Multifunctional nutrient solution, preparation method and application thereof

The invention discloses a multifunctional nutrient solution, which comprises the following components: 1-5 parts of ethylene glycol, 0.01-0.5 part of indolebutyric acid, 0.01-0.1 part of methyl jasmonate, 0.1-5 parts of Tween-20, 1-5 parts of boric acid, 0.4-2 parts of chelated trace elements, 1-10 parts of urea, 10-20 parts of potassium pyrophosphate, 1-5 parts of DPC, 0.1-5 parts of choline chloride, and 60-80 parts of water. The multifunctional nutrient solution provided by the invention can provide various nutrient elements needed by growth and development of succulent plants, can meet the needs of plants for various nutrients, promote the growth and development of plant root systems so as to improve the absorption capacity of plants to fertilizer water, can prevent the ''overgrowth'' phenomenon of succulent plants under an indoor condition lacking light and help plant moulding, can promote plant photosynthesis, increase the photosynthetic effect and make the leaf color gorgeous, and also can enhance the disease resistance of plants. The method is simple and convenient to operate, and the raw materials are common and convenient to purchase.
Owner:句容市白兔镇近溪家庭农场

Preparation method of bacillus amyloliquefaciens G5 spore bacteria powder

The invention is applied to the technical field of microbial fermentation and provides a preparation method of bacillus amyloliquefaciens G5 spore bacteria powder. The method comprises the following steps: step one, preparing a spore-producing culture medium from corn starch, glucose, soybean meal, calcium carbonate, ammonium chloride, dipotassium phosphate, magnesium sulfate and manganese sulfate; step two, culturing a spore fermentation solution; and step four, preparing spore bacteria powder by adding ammonium sulfate and kieselguhr into the spore fermentation solution and then carrying outplate-frame filtration to obtain the bacillus amyloliquefaciens G5 spore bacteria powder. In the preparation method of the bacillus amyloliquefaciens G5 spore bacteria powder, the raw materials of the spore-producing culture medium are common, convenient and easily available, so that the production cost is reduced; a large number of spores exist in the obtained spore fermentation solution; the spore yield is greater than or equal to 98%; ammonium sulfate and kieselguhr are taken as flocculants, so that the preparation time of the spore bacteria powder is reduced; a large number of effective living bacteria exist in the obtained spore bacteria powder; the yield of the effective living bacteria is greater than or equal to 95%.
Owner:SHANDONG SUKAHAN BIO TECH

Homemade chili sauce, chili sauce preparation method and stir-frying machine

The invention discloses homemade chili sauce, a chili sauce preparation method and a stir-frying machine and relates to the field of seasoning products. The homemade chili sauce is prepared from the following raw materials in parts by weight: 25-45 parts of onion, 100-150 parts of chopped green onion, 20-40 parts of coriander, 20-40 parts of garlic cloves, 100-120 parts of chili powder, 25-35 parts of Chinese prickly ash powder, 20-40 parts of sweet fermented flour paste, 100-130 parts of light soy sauce, 25-35 parts of edible salt, 2-6 parts of thirteen spices, 25-45 parts of monosodium glutamate, 25-45 parts of chicken essence, 10-20 parts of degreased vegetables, 0.5-1.5 parts of dry soybeans and a proper amount of edible oil. Fresh food materials are adopted, no food additive is added,the fragrance is strong, and the requirements of consumers with different tastes are met.
Owner:龚剑辉

Novel sp3 carbon material and high-pressure preparation method thereof

The invention relates to a novel sp3 carbon material and a high-pressure preparation method thereof, and belongs to the technical field of the preparation of superhard carbon materials. C60 @ SWNTs or C70 @ SWNTs is used as a raw material, a diamond anvil cell is used as a pressurizing device, a sample is filled into a sample chamber for pressurizing to greater than or equal to 60GPa in a transmission-medium-free hard pressurizing manner, and then depressurized to normal pressure to obtain the novel sp3 carbon material with super hard characteristics. The raw material used in the novel sp3 carbon material is common, reactant cost is low, the preparation process is safe and simple, the method does not need to add temperature variables, the prepared ultra hard carbon material has clearly differentiable X ray diffraction peaks, good crystallization and excellent mechanical properties, and can be stable under the normal pressure.
Owner:JILIN UNIV

Multifunctional auxiliary device for music high pitch VR training

A multifunctional auxiliary device for music high pitch VR training comprises a box body, an opening is formed in the top face of the box body, a sealing door is hinged to the top face of the box body, a transverse rotating shaft is arranged in the box body, one end of the rotating shaft penetrates through one side of the inner wall of the box body and is connected with a bearing of the rotating shaft, and an impeller is fixedly installed on the periphery of the rotating shaft and located in the box body. The periphery of the rotating shaft is sleeved with a plurality of fixing rings and fixedly connected with the fixing rings, a plurality of screw holes are formed in the peripheries of the fixing rings respectively, screw rods in threaded fit with the screw holes are arranged in the screwholes respectively, and the outer ends of the screw rods are fixedly connected with one ends of connecting ropes respectively. The PC can detect the sound emitted by the device and send the analysisinformation to the VR glasses, and the VR glasses convert the analysis information into image information and display the image information in front of the eyes of a user, so that the user feels novel, the user can record each training through the PC, a list is set, the PC can be networked to challenge the vital capacity with other users, so that the exercise enthusiasm of the users is improved.
Owner:李春海

Method for preparing metal carboxylate super-hydrophobic coating layer on metal surface

The invention relates to a method for preparing a metal carboxylate super-hydrophobic coating layer on a metal surface. The method is characterized in rapid reaction, no needing immersion and only needing to coat a reaction solution onto a metal plate surface. Used raw materials are common and have low prices so that the cost of preparing the super-hydrophobic coating layer is greatly reduced; in addition, the method provided by the invention can be applied to the super-hydrophobic coating layer preparation on multiple varieties of metal surfaces, the application range of the super-hydrophobic coating layer is widened, and the scale production is ensured to be more market values.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Ecological solid protection method for littoral zone sandy shore slope

InactiveCN108867667ATo achieve the purpose of ecological conservationAvoid lossCoastlines protectionExcavationsFiberEnvironmental engineering
The invention discloses an ecological solid protection method for a littoral zone sandy shore slope. The method comprises the following steps of digging a plurality of cutting holes with uniform spacing on a slope surface of the littoral zone sandy shore slope, arranging the plurality of cutting holes in rows, and placing a plurality of cutting earthen bowls in the plurality of cutting holes for later operation; spreading a plurality of straw bundles along upper end openings of the plurality of cutting holes arranged in a row; using a plurality of living body willow branch sections to penetrate through the plurality of straw bundles and to be inserted into the plurality of cutting holes one by one; digging a plurality of seeding holes uniformly in the bare slope surface among the pluralityof straw bundles, spreading straw broken fibers on the bottoms of the plurality of seeding holes, and sowing drought-resistant weed seeds above the straw broken fibers. The method combines the modesof using the straw bundles to stop and store water and soil, propagating the plurality of living body willow branches into shrub layers and forming a herbaceous layer by the drought-resistant grass species, quickly and efficiently constructs a network interlacing rooting environment in the littoral zone sandy shore slope, and achieves the purpose of ecological solid protection of the shore slope in a 'three in one' manner.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Medicine for preventing and treating white scours of piglets and preparation method thereof

The invention discloses a medicine for preventing and treating white scours of piglets. The medicine is prepared from, by mass, 100-150 parts of prince's-feather herb, 350-600 parts of rhizoma acori graminei, 110-165 parts of lawn pennywort herb, 150-185 parts of poria cocos, 125-160 parts of wrinkled gianthyssop herb, 250-300 parts of charcoal, 280-320 parts of dahurian patrinia herb, 140-180 parts of saxifraga stolonifera herb, 200-230 parts of humifuse euphorbia herb and 200-245 parts of hiraute shiny bugleweed herb. The raw materials in the medicine are free of incompatibility, the incidence rate of white scours of piglets can be obviously reduced, and an excellent prevention and treatment effect on white scours of piglets can be achieved.
Owner:钟景林

Composite oil-displacing agent for improving recovery efficiency as well as preparation method and application of composite oil-displacing agent

The invention discloses a composite oil-displacement agent for improving the recovery efficiency and a preparation method and application thereof, and belongs to the technical field of carbon dioxide displacement. The composite oil-displacing agent is obtained by mixing supercritical carbon dioxide and a surfactant according to a weight ratio of (100-1000): 1, the preparation method of the surfactant comprises the following steps: in formic acid, reacting a first monomer with formaldehyde to obtain a first reactant; reacting a second monomer with acyl chloride to obtain a second reactant; in the presence of an initiator, carrying out polymerization reaction on the first reactant and the second reactant to obtain the surfactant, wherein the first monomer is selected from at least one of 3-phenyl-4-pentene-1-amine, 4-pentene-1-amine, 4-methyl-pentene-1-amine and 2-amino-4-pentenoic acid, the second monomer is at least one of 1-butene, 1-pentene, 1-hexene and cyclopentene.
Owner:DESHI ENERGY TECH GRP CO LTD +1

Oil-displacing agent for supercritical carbon dioxide displacement as well as preparation method and application of oil-displacing agent

The invention discloses an oil-displacing agent for supercritical carbon dioxide displacement as well as a preparation method and application thereof, belonging to the field of carbon dioxide displacement oil extraction. The preparation method of the oil-displacing agent comprises the following steps: subjecting a first monomer to reacting with a second monomer to generate a first intermediate; subjecting the first intermediate to reacting with a third monomer to generate a second intermediate; subjecting a fourth monomer to reacting with a fifth monomer to obtain a third intermediate; and polymerizing the second intermediate and the third intermediate to obtain the oil-displacing agent.
Owner:SHANDONG DESHI CHEM IND CO LTD +2

Antibacterial mothproofing agent for bedding and preparation method of antibacterial mothproofing agent

ActiveCN108477228ANo skin irritationImprove anti-mite and antibacterial effectBiocideDisinfectantsAntibacterial agentBacteria
The invention discloses an antibacterial mothproofing agent for bedding and a preparation method of the antibacterial mothproofing agent. The antibacterial mothproofing agent is prepared from the rawmaterials in percentage by weight: 0.5 to 8 percent of antibacterial agent, 1 to 10 percent of mothproofing agent, 0.3 to 1 percent of emulsifier, 0.2 to 0.4 percent of dispersing agent, 0.1 to 0.3 percent of cross-linking agent, and the balance of water; the antibacterial agent is selected from one or more of extract of herba caryopteris incanae, extract of folium eriobotryae and extract of folium myricae rubrae; and the mothproofing agent is selected from one or two of folium artemisiae argyi volatile oil and stemonine. The preparation process of the antibacterial mothproofing agent is simple, safe and environmentally friendly, does not produce harmful substances influencing the safety of the human body and environment, can also effectively inhibit the bacteria and prevent the breeding of moth, and can reduce the harm of the moth and bacteria on the health of the human body, thereby playing a role in preventing the diseases, and having an important significance and a wide applicationprospect.
Owner:广州广微环境科技有限公司

MA/AA/MMA copolymer resin for biological macromolecule concentration and its preparation method

InactiveCN1624016AReduced activitySolve problems that are not suitable for situations with small sample volumesUltrafiltrationDistilled water
A process for preparing the MA / AA / MMA copolymer resin used for concentrating the large biological molecular material includes such steps as proportionally mixing AA liquid, MA solid sodium hydroxide and distilled water, proportionally adding MMA, waving, and three element polymerizing under the triggering of gamma ray. Its advantages are no influence to specimen and low cost.
Owner:UNIV OF SCI & TECH OF CHINA

Preparation method for whitening facial mask

The invention provides a preparation method for a whitening facial mask, and belongs to the technical field of cosmetics; the invention also discloses the preparation method for the whitening facial mask, wherein the whitening facial mask is prepared according to the following steps: pre-treating raw materials, taking milk, egg white, lemon, cucumber, honey, a pearl powder and vitamin E, juicing lemon and cucumber, and grinding vitamin E into a powder; taking a container, putting all of milk, egg white, the lemon juice, the cucumber juice, honey, the pearl powder and the vitamin E powder intothe container, stirring evenly, flatly laying facial mask paper on the container, and pressing the facial mask paper with a tool; covering with a cover, and putting into a refrigerator; and taking outthe facial mask paper, and applying on a face. The whitening facial mask is simple in raw materials and easy to prepare, prevents and eliminates skin pigmentation, moisturizes skin, has the effects of whitening skin, shrinking pores and making the skin fine, and also has the functions of clearing away heat and toxic materials and enhancing skin immune function.
Owner:GUANGXI UNIV FOR NATITIES

Shaolin Fengshi Dieda paste and production technological procedure

The invention provides Shaolin Fengshi Dieda paste. The Shaolin Fengshi Dieda paste is prepared from raw materials in parts by weight as follows: 16 parts of unprocessed radix aconiti,16 parts of unprocessed radix aconiti kusnezoffii, 16 parts of radix linderae, 16 parts of rhizoma bletillae, 16 parts of radix angelicae, 16 parts of radix ampelopsis, 16 parts of ground beetles, 16 parts of fructuschaenomelis, 16 parts of rhizoma sparganii, 16 parts of rhizoma curcumae, 16 parts of radix angelicae sinensis, 16 parts of radix paeoniae rubra, 16 parts of cortex cinnamomi, 32 parts of radix et rhizoma rhei, 32 parts of fructus forsythia, 10 parts of resina draconis, 6 parts of fried olibanum, 6 parts of fried myrrh, 6 parts of radix notoginseng, 6 parts of cutch, 400 parts of rubber, 160 parts of rosin, 540 parts of lithopone, 14 parts of lanolin, 8 parts of menthol, 8 parts of methyl salicylate, 8 parts of borneol, 20 parts of liquid paraffin and 40 parts of vaseline. The raw materials are common, the cost is relatively low, and the Shaolin Fengshi Dieda paste has effect of reliving and curing bruise pain symptoms and is short in treatment period; the Shaolin Fengshi Dieda paste is suitable for flow line production, so that the cost of the Shaolin Fengshi Dieda paste is further reduced.
Owner:ANHUI JINMA PHARMA

Petroleum hydrocarbon cracking catalyst and preparation method thereof

The invention discloses the technical field of cracking catalyst, in particular to a petroleum hydrocarbon cracking catalyst and a preparation method thereof. Raw materials of the petroleum hydrocarbon cracking catalyst comprise a Y-type molecular sieve, zeolite, clay, a carrier and catalyst waste residues, the petroleum hydrocarbon cracking catalyst is prepared from the following raw materials inparts by mass: 20 to 50 parts of the Y-type molecular sieve, 20 to 26 parts of zeolite, 10 to 20 parts of clay, 30 to 40 parts of the carrier and 20 to 25 parts of catalyst waste residue. The preparation method of the petroleum hydrocarbon cracking catalyst comprises the following specific steps: S1, crushing and mixing the raw materials; S2, carrying out spray drying on the crushed raw materials; S3, adding thecarrier into the dried raw materials for mixing. According to the preparation method, theY-type molecular sieves, zeolite, clay, the carrier and catalyst waste residues are adopted asthe raw materials, the use cost is reduced, and the raw materials are common and convenient to take and use; the preparation process is simple, and the catalyst can be efficiently prepared.
Owner:杨涛

Method for preparing metal carboxylate super-hydrophobic coating on surface of metal

The invention relates to a method for preparing a metal carboxylate super-hydrophobic coating on the surface of a metal. The method is characterized by comprising the following steps of: preparing an ethanol reaction solution by using metal salt, fatty acid and ethanol, polishing a metal plate to remove a surface oxide layer, cleaning the metal plate by using distilled water, and drying the metal plate; soaking the metal plate into an ethyl acetate solution, performing ultrasonic cleaning, cleaning the metal plate by using distilled water and drying the metal plate; uniformly coating the prepared solution on the surface of the treated metal plate by using a coating tool such as a spray gun or absorbent cotton and the like; and soaking the metal plate coated with the solution into deionized water, cleaning the metal plate, taking out the metal plate, airing the metal plate at room temperature, and thus obtaining the metal carboxylate super-hydrophobic coating. According to the preparation method, only the reaction solution is coated on the surface of the metal plate. The raw materials adopted in the method are common and cheap, so the cost of preparing the super-hydrophobic coating is greatly reduced. Moreover, the method can be used for preparing the super-hydrophobic coating on the surfaces of multiple metals, so that the application range of the super-hydrophobic coating is broadened, and the scale production has market value.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Environment-friendly shield tail sealing grease and preparation method thereof

The invention belongs to the technical field of shield tail sealing greases and in particular discloses an environment-friendly shield tail sealing grease and a preparation method thereof. The environment-friendly shield tail sealing grease comprises raw materials of base oil, a viscosity improver, an extreme pressure lithium base grease, calcium carbonate powder and a reinforcing fiber. The preparation method of environment-friendly shield tail sealing grease specifically comprises the following steps: S1, stirring and mixing the base oil, the extreme pressure lithium base grease and the viscosity improver, namely weighing the base oil, the extreme pressure lithium base grease and the viscosity improver in accordance with a weight ratio, and putting the components into a kneading machine;S2, adding calcium carbonate powder into the kneaded mixture, and performing continue mixing; and S3, adding the reinforcing fiber, so as to obtain a finished product. The raw materials are the baseoil, the viscosity improver, the extreme pressure lithium base grease, the calcium carbonate powder and the reinforcing fiber, the raw materials are common and low in cost, the finished product is good in lubricity, good in sealing effect, good in oxidation resistance and good in environmental performance., and the preparation scheme is simple and fast.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Banana cake

The invention discloses a banana cake, which consists of the following components in parts by weight: 3-5 parts of banana jam or banana powder, 18-20 parts of eggs, 5-7 parts of glucose, 8-10 parts of flour, and 0.3 parts of baking powder ‑0.5 parts, 1‑3 parts of coconut oil, 3‑5 parts of matcha powder, 3‑5 parts of red date powder, 3‑5 parts of corn flour, 1‑1.5 parts of condensed milk, 0.5‑0.7 parts of milk powder, 0.3‑0.8 parts of water . The banana cake provided by the present invention uses few raw materials, and the raw materials are common and cheap, and the equipment used in the production is simple, and the production can be completed in a household oven or a small household cake machine, and it can be eaten out of the oven without using additional additives. Healthier nutrition.
Owner:吴绍玲
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