99results about How to "Fast absorption rate" patented technology

The invention discloses an asymmetrical electrode two-dimensional material / graphene heterojunction cascaded photodetector and a manufacturing method thereof. The detector comprises a Si / SiO2 substrate, a first electrode is arranged on the Si / SiO2 substrate, a two-dimensional material layer is arranged on the first electrode, a second electrode is arranged on the two-dimensional material layer, and the two-dimensional material layer is an n-layer heterojunction formed by graphene and two-dimensional material which are overlapped. The asymmetrical electrodes with different work functions are adopted, formation of a Fermi energy level difference from the first electrode to the second electrode is promoted, photocarriers are generated and then quickly diffused to an external circuit, quick combination of an electron hole can be avoided due to existence of the energy level difference, and the photo response of the device can be enhanced; and as the graphene and the two-dimensional material are combined, the high carrier mobility and the super quick response time of the graphene, and the high absorption rate towards light by the two-dimensional material are used respectively, and a super quick and super high-response photodetector can be realized.

The invention belongs to the technical field of gas separation and purification and relates to a novel absorbent for capturing and separating CO2 in mixed gas. An active amine compound aqueous solution with a special structure is used as an absorbent; two functional groups, namely a primary amine functional group and a tertiary amine functional group, are contained in the active amine molecules; primary amine is mainly used for improving the absorption rate, and tertiary amine is mainly used for increasing the absorption amount and reducing the desorption temperature; and the two types of amine can promote activation. The active amine compound aqueous solution comes into contact with treated gas to purify gas; and the concentration of the absorbent is 5-80wt%. The absorbent provided by the invention is wide in amine concentration range, high in CO2 absorption rate, large in absorption capacity and low in desorption temperature and causes little corrosion to equipment. The novel absorbent can be widely applied to separation and purification of CO2 in natural gas, transformation gas, flue gas and synthesized gas.

The invention provides a double phase absorption system for removing CO2 from flue gas. The system is composed of an alkylol amine absorbent, an amine absorbent, an activator, a consumption reduction agent, water and an organic solvent. The double phase absorption system for removing CO2 from flue gas has the advantages of strong absorption capability, fast absorption rate, low regeneration temperature and low energy consumption in the regeneration process.

The invention provides a carbon dioxide solid absorbent capable of effectively inhibiting active components from losing effect. One or more of potassium carbonate, sodium carbonate and alkali metal base carbonates is / are used as the active component, one or more of calcium oxide, magnesium oxide and alkali-earth oxides is / are used as the additive, and active aluminum oxide is used as an absorbent carrier; and a precipitation method, impregnation method, impregnation-precipitation method or impregnation-spray method is used for preparing the carbon dioxide solid absorbent. The absorbent can efficiently and quickly remove carbon dioxide in fume, and can also effectively lower loss of effect of the active component alkali metal base carbonates due to sulfur dioxide and other foreign gases in the fume. The research indicates that the carbon dioxide absorption temperature of the absorbent is 60-80 DEG C, the regeneration temperature is 100-300 DEG C, and calcium oxide, magnesium oxide and other additives react with SO2 in the fume to generate sulfites, thereby effectively lowering the loss of effect of the active components due to SO2 and prolonging the service life of the solid absorbent.

The invention discloses a water-soluble florfenicol clathrate with high bioavailability. The water-soluble florfenicol clathrate is prepared from the following components in parts by weight: 5-15 parts of florfenicol or pharmaceutically acceptable salt of florfenicol, 20-60 parts of a florfenicol adsorption carrier, 1-2 parts of an absorption promoter, and 10-30 parts of a florfenicol cosolvent. For the florfenicol clathrate provided by the invention, the solubility of florfenicol is effectively improved, the bioavailability of florfenicol is improved, the hemolysis property of the medicine is alleviated, the release rate of the medicine is controlled, and the bad smell is masked. The preparation method provided by the invention comprises the following steps: firstly, mixing the florfenicol adsorption carrier, the absorption promoter and the florfenicol cosolvent, adding with florfenicol or the pharmaceutically acceptable salt of florfenicol under the water bath water control condition, carrying out stirring, carrying out heat preservation, and carrying out drying, thus obtaining the florfenicol clathrate. The technological operation is simple, the abundant time and manpower are saved, and during the preparation process, no organic solvents are used, so that the preparation method is safe and reliable and is free of pollution, and the process is simple and easy to realize.

The invention belongs to the field of carbon dioxide capture and separation, and in particular provides application of tri-(2-aminoethyl) amine as a carbon dioxide absorbent. Compared with the traditional absorption solvent, the performance of absorbing CO2 of the tri-(2-aminoethyl) amine provided by the invention is superior to that of the traditional absorption solvent (such as mono ethanol amine), and the tri-(2-aminoethyl) amine has the advantages of larger absorption capacity and quicker absorption speed.

The invention relates to a baicalin magnesium compound and further relates to a preparation method and extracting method of the baicalin magnesium compound.The preparation method comprises the steps of baicalin suspension preparation, magnesium ion mixed suspension preparation, reaction, drying and the like.The extracting method comprises macroreticular resin preprocessing, extracting, adsorbing and eluting, concentrating and drying, purifying and the like.The prepared baicalin magnesium restores the existing way of baicalin in scutellaria baicalensis and can replace scutellaria baicalensis to be used as medicine.Compared with the baicalin, the baicalin magnesium compound has the advantages that the solubility is greatly improved, the oral absorption speed is higher, the bioavailability is higher, and the baicalin magnesium compound can very conveniently prepared into water-soluble injection or powder injection.Pharmacological experiments indicate that the pharmacological activity of baicalin magnesium is superior to that of baicalin.

The invention discloses a carbon dioxide capturing agent and application thereof. Waste concrete is taken as a raw material, after primary cutting, pre-burning and vibration smashing, after vibrationseparating, the waste concrete is sieved through a 60 mesh-325 mesh sieve, sieved subparticles are collected and subjected to grinding treatment, and the carbon dioxide capturing agent is obtained. The prepared CO2 capturing agent is high in speed of absorbing carbon dioxide, short in reaction time, simple in operation, high in technology adaptability and capable of being widely applied to wet ordry carbon capturing. According to the agent, the high added value of hardened gel and the utilization efficiency of waste concrete are improved, the new material with wide sources and low cost is provided for carbon dioxide capturing agents of industrial gas, and the green and environmentally friendly new material meeting the national related supporting policies is provided, can be used for capturing carbon dioxide in smoke of large-scale coal burning enterprises of electricity generation, metallurgy, cement and the like, and has significant social benefits, environment benefits and economicbenefits.

The invention discloses a twin-tower type flue gas deep purification device through plasma coupling and sodium based absorption. The desulfurization tower and denitration tower in the device are separated from each other. The desulfurization tower comprises a desulfurization slurry circulating tank, a desulfurization spraying layer, a desulfurization demister, and a desulfurization flue gas outlet from bottom to top. A plasma demisting and oxidizing device comprises a demisting part and an oxidizing part, and the lower ends of the demisting part and the oxidizing part are both provided with a demisting wastewater outlet. The denitration and demercuration tower comprises a denitration and demercuration slurry circulating tank, a filling material layer, a denitration and demercuration spraying device, a denitration and demercuration demister, and a denitration and demercuration flue gas outlet from bottom to top. A desulfurization flue gas outlet is arranged between the desulfurization slurry circulating tank and the desulfurization spraying layer. The denitration and demercuration slurry circulating tank is connected to the oxidizing part. The demisting part is connected to the desulfurization flue gas outlet. The desulfurization slurry circulating tank is connected to the desulfurization spraying layer. The denitration and demercuration slurry circulating tank is connected to the denitration and demercuration spraying device. The desulfurization slurry circulating tank and the demisting wastewater outlet are both connected to the denitration and demercuration slurry circulating tank.

The invention discloses a transdermal delivery preparation in three-dimensional netty spatial configuration of agomelatine and a preparation method thereof. The transdermal delivery preparation consists of a backing layer, a medicine-loading system in a three-dimensional netty spatial configuration coated on the backing layer and an anti-sticking layer compounded on the system. The medicine-loading system in the three-dimensional netty spatial configuration comprises the following components in percentage by weight: 1-40% of agomelatine, 0-10% of nano-porous carbon dioxide, 40-90% of a pressure-sensitive adhesive, 1-30% of a transdermal penetration enhancer and 0-20% of a dispersant. The transdermal delivery preparation disclosed by the invention not only can continuously deliver the medicine in a transdermal manner for a longer time to maintain the constant blood concentration, but also is quick in transdermal absorption rate and high in transdermal absorptive amount, so that the preparation has the characteristics of stability and efficiency.

Belonging to the technical field of capture of carbon dioxide in gas, the invention relates to a capture solvent for capturing carbon dioxide in a post-combustion carbon dioxide gas source and application. The capture solvent includes alcohol amine, an ionic liquid activator and deionized water, wherein the alcohol amine is one or more of 2-amino-2-methyl-1-propanol, 2-(methylamino)-ethanol, 2-(ethylamino)-ethanol, 2-(diethylamino)-ethanol, 2-(2-hydroxyethyl)-piperidine, diglycolamine, dimethylamino-2-propanol, and triethanolamine. The negative ion of the ionic liquid activator has an amino acid structure, the structural formula of amino acid is H2N-R-COOH (R=CnH2n, n=1-5), and the positive ion is one or more of organic amine salt positive ion and organic alcohol amine positive ion. The capture solvent provided by the invention has the advantages of low regeneration energy consumption, fast absorption rate and the like, also consumes little ionic liquid, has strong stability, and is not easy to degrade. Therefore, the capture solvent has very good prospect in the field of carbon dioxide capture after large-scale combustion.

The invention discloses a transdermal drug delivery preparation with three-dimensional mesh stereoscopic configuration and a preparation method of the transdermal drug delivery preparation. The transdermal drug delivery preparation with the three-dimensional mesh stereoscopic configuration is composed of a transdermal drug delivery system with the drug-loaded three-dimensional mesh stereoscopic configuration, a backing layer and an anti-sticking layer, wherein the backing layer is compounded on one side of the transdermal drug delivery system with the drug-loaded three-dimensional mesh stereoscopic configuration; and the anti-sticking layer is compounded on the other side of the transdermal drug delivery system with the drug-loaded three-dimensional mesh stereoscopic configuration. With nanoporous silica as a carrier, the defects that a preparation is low in drug loading capacity, medicines are easily separated out and crystallized to affect the transdermal absorption efficiency, the adhesion performance of a pressure-sensitive adhesive system is not ideal enough, the pressure-sensitive adhesive system is easy to age, and the medicine stability is poor are solved; the long-term lasting transdermal penetration of the medicine can be effectively achieved; the stable blood concentration can be maintained; and the preparation has the characteristics of high transdermal absorption rate, high transdermal absorption amount, stability and high efficiency.

The invention provides a highly-activity sodium-based solid carbon dioxide absorbent which comprises an active ingredient, a carrier and a catalyst, wherein the active ingredient adopts sodium carbonate and accounts for 20%-40% of the total mass of the solid absorbent; the carrier adopts activated aluminum oxide and accounts for 50%-79% of the total mass of the solid absorbent; and the catalyst adopts one or two of TiO2 and TiO(OH)2 and accounts for 1%-10% of the total mass of the solid absorbent. A preparation method of the absorbent adopts an impregnation method, a precipitation method, an impregnation precipitation or an impregnation spraying method. The solid absorbent belongs to low-temperature absorbents, the CO2 absorbent temperature is 60-80 DEG C, and the CO2 desorption temperature is 120-300 DEG C. Materials of the solid absorbent are cheap and accessible, the preparation process cost is low, the procedure is simple, the absorbent is uneasy to become inactive after multiple times of circulation, a higher CO2 removal rate can be maintained, and the absorbent is an optimization scheme with lower investment and energy consumption for the CO2 emission reduction technology and has a wide application prospect.

The invention relates to a preparation method of a polydimethylsiloxane porous adsorption material. The method comprises the steps that organo-siloxane is used as a preformed polymer, and a curing agent, a thinning agent, a pore-forming agent and a foaming agent are added; the porous adsorption material is prepared from, by weight, 10-20% of the siloxane preformed polymer, 1-5% of the curing agent, 10-30% of the thinning agent, 10-30% of the pore-forming agent and 30-50% of the foaming agent, uniform stirring is performed, the mixture is dropped into a foaming solution drop by drop, and the porous adsorption material is obtained through specific treatment. The obtained porous material can adsorb various oils and organic solvents such as petroleum ether, carbon tetrachloride, tetrahydrofuran, trichloromethane, normal octane, cyclohexane, normal octane, kerosene and ethyl acetate. The experimental method is novel, simple and easy to implement and low in cost, the material can be recycled, the material is environmentally friendly, and therefore the porous material has the excellent application prospect.

The invention discloses a transdermal spray preparation for plastic mist membranization and a preparation method of the transdermal spray preparation. The transdermal spray preparation for plastic mist membranization comprises the following components in percentage by mass: 2%-20% of medicine, 2%-20% of mesoporous nano silica aerogel, 2%-30% of a dispersing agent, 1%-15% of atomizing agent, 1%-15% of a film-forming agent and 35-90% of a volatile solvent. The mesoporous nano silica aerogel is a controlled-release mesoporous nanometer carrier; the porosity of the mesoporous nano silica aerogel is 90%-99.8%; the aperture of the mesoporous nano silica aerogel is 20-100nm; the three-dimensional nano particle size is 2-70nm; the specific surface area is 100-1,000m<2> / g; the density is 0.003-30g / cm<3>; and the heat-conducting coefficient is 0.01-0.018w / m.k. According to the transdermal spray preparation, long-time continuous transdermal penetration of the medicine can be effectively achieved; the constant blood concentration is maintained; and the preparation has the characteristics of high transdermal absorption rate, high transdermal absorption amount and is stable and efficient.

The invention relates to a transdermal patch containing a proton pump inhibitor drug. The transdermal patch is characterized by mainly comprising a back lining layer, a drug library layer and an anti-sticking layer, wherein the drug library layer contains the following components in percentage by weight: 0.1%-40% of active components, 20%-90% of a drug library matrix, 1%-5% of a stabilizer, 1%-30%of a transdermal absorption enhancer and 0-20% of a dispersing agent. According to the transdermal patch, long-time continuous transdermal penetration of the drug can be effectively realized, a constant blood concentration can be maintained, and a preparation is high in transdermal absorption speed and transdermal absorbing capacity; and the transdermal patch has the characteristics of stability,high efficiency, relatively high pharmaceutical safety and the like.

The invention provides an absorbent for collecting carbon dioxide. The absorbent for collecting carbon dioxide is characterized by comprising a solution containing 1-amidogen-4-(2-ethoxy)-piperazine or a -amidogen-4-(2-ethoxy)-piperazine solution. The absorbent for collecting carbon dioxide has the advantages that the rate of absorption and the absorption capacity are high, and energy consumption for absorption release is low.

The invention discloses ionic liquid for phase change absorption of sulfur dioxide. The ionic liquid consists of organic cations and organic or inorganic anions. The cations are provided by heterocyclic compounds such as imidazole and piperazine, and an amine compound; the anions are provided by carboxylic acid, amino acid, inorganic acid and the like. The substances that provide the cations and the anions are added according to the stoichiometric ratio of reaction, and between 20 DEG C and 50 DEG C, the ionic liquid can be prepared after the complete reaction of the substances. The ionic liquid has the advantages of low volatility and good thermal stability; the key point is that a liquid-solid phase change occurs after SO2 absorption, and only one phase enriched with SO2 is sent to a regeneration tower for desorption, so that the desorption energy consumption is reduced to a great extent. Moreover, the SO2 can also be cyclically absorbed. Therefore, the ionic liquid is an absorbent with good performance, has a great application prospect and is suitable for the collection and the separation of the SO2 in coal-fired flue gas.

The invention relates to a carbon dioxide absorbent used for capturing after combustion. The carbon dioxide absorbent is characterized by being composed of a main absorbent polyethyleneimine (PEI), auxiliary absorbents TEPA, MEA, MDEA, DEA and PZ, an antioxidant sodium sulfite, potassium sulfite or ammonium sulfite, a corrosion inhibitor sodium molybdate, sodium chromate, sodium vanadate or ammonium molybdate, and water. The molecular weight of polyethyleneimine (PEI) is 300-500; polyethyleneimine has a branch shape, and the molecule comprises three amino groups including primary amine, secondary amine and tertiary amine; and compared with other types of organic amines, polyethyleneimine has higher amine density. A compound absorption solution has relatively high carbon dioxide absorption amount, relatively rapid absorption speed, low regeneration energy consumption and high stability, so that the absorbent has a very great application prospect in the aspect of capturing carbon dioxide after combustion.

The invention discloses a preparation method of N,N'-dicyclohexyl urea, which is characterized in that: anionic functionalized ionic liquid absorbs CO through chemical action 2 In situ reaction of carbon source and cyclohexylamine, N,N'-dicyclohexylurea was prepared under mild conditions. with traditional CO 2 Compared with the method of preparing N,N'-dicyclohexyl urea directly with cyclohexylamine reaction, this method has the advantages of low reaction temperature and pressure, CO 2 The utilization rate is high, the anionic functionalized ionic liquid can be recycled, and no additional catalyst, dehydrating agent and solvent are needed. It is a preparation method of N,N'-dicyclohexyl urea with industrial application potential.

The present invention provides a layered absorbent for trapping CO2 in tail gas. The absorbent comprises a basic absorbent, an activation agent, a boiling point increasing agent, water and an organic solvent; the basic absorbent is selected from one or more of N,N-dimethylethanolamine, N,N- diethyl ethylene diamine, N,N-dimethyl cyclohexyl amine, N-methyldiethanolamine, 1,4-diaminobutane, 1,5-diaminopentane, bis(2-ethylhexyl)amine, octodrine, di-n-propylamine, tripropylamine and paranitroaniline; the activation agent is selected from one or more of diisopropanolamine, diethanol amine, diglycolamine, triethylene glycol amine, and morpholine; the boiling point increasing agent is selected from one or more of dimethylformamide, dimethylacetamide, ethylene glycol monomethyl ether, and oxalic acid; and the organic solvent is selected from one or more of methanol, ethanol, benzyl alcohol, phenylethanol, n-propyl alcohol, and isopropyl acetate. The layered absorbent for trapping CO2 in the tail gas is high in absorbing ability, fast in absorption rate, low in regeneration temperature, and low in regeneration energy consumption.

A combined-type absorbent used for selectively absorbingSO2 comprises three ingredients: water, polyamino compound strong acid salt, and at least one of amide compounds and urea compounds, wherein the polyamino compound strong acid salt is obtained via reaction between a polyamino compound and organic strong acid / inorganic strong acid. As the alkalinities of different amido groups are different, the invention provides the combined-type absorbent according to a PH buffer solution principle, the preparation technology is simple, and the cost is low; the absorption selectivity of SO2 is high, the absorption efficiency is high, and SO2 can be recycled.

The invention discloses 4-((2-hydroxyethyl)(methyl)amino)-2-butanol and a preparation method of the 4-((2-hydroxyethyl)(methyl)amino)-2-butanol. The structural formula of the 4-((2-hydroxyethyl)(methyl)amino)-2-butanol is shown in the description. According to the invention, the brand-new acidic gas absorbent 4-((2-hydroxyethyl)(methyl)amino)-2-butanol is synthesized; the preparation method of the acidic gas absorbent is simple and convenient, and is low in cost; the acidic gas absorbent has a larger absorption capacity and a greater absorption rate, and is especially suitable for the absorption of carbon dioxide.

The invention discloses a transdermal drug delivery preparation with a drug-loaded three-dimensional mesh spatial configuration and a preparation method of the transdermal drug delivery preparation. The transdermal drug delivery preparation with the drug-loaded three-dimensional mesh spatial configuration is composed of a transdermal drug delivery with the drug-loaded three-dimensional mesh spatial configuration, a backing layer and an anti-sticking layer, wherein the backing layer is compounded on one side of the transdermal drug delivery with the drug-loaded three-dimensional mesh spatial configuration; the anti-sticking layer is compounded on the other side of the transdermal drug delivery with the drug-loaded three-dimensional mesh spatial configuration; and an active medicine comprises the forms of oxybutynin hydrochloride or tartrate thereof, sulfate, phosphate, fumarate and a basic group. According to the transdermal drug delivery preparation, the drug loading capacity is greatly increased; the drug loading capacity can be improved; the medicine devitrification is inhibited; the medicines are sequentially and uniformly dispersed into the transdermal drug delivery system; stable release is carried out; long-term lasting transdermal permeation of the medicines can be realized; stable blood concentration is maintained; and the preparation is high in transdermal absorption rate and high in transdermal absorption amount, and has the characteristics of being stable and efficient.

The invention relates to the field of paper diapers, in particular to a sea buckthorn oil slow-release diaper, which comprises a double-layer absorption core, a concentric-square-shaped glue spraying bottom film arranged on the outer edge of the double-layer absorption core in a surrounding mode and an elastic waistband structure arranged at the end of the diaper, the double-layer absorption core comprises an absorption layer and a skin-friendly layer, the absorption layer comprises an absorption core body and a liquid absorption part, and the skin-friendly layer covers the upper end of the liquid absorption part and is fixedly connected with the liquid absorption part; the skin-friendly layer is composed of an outer skin and an inner core, the inner core is coated with the outer skin, and sea buckthron oil sustained-release microspheres are contained in the inner core. The diaper overcomes the defects that an existing diaper cannot protect delicate skin of an infant, cracks, roughness, diaper rash and other undesirable phenomena occur after long-time use, meanwhile, the liquid absorption rate is low, and liquid cannot be evenly distributed, and has the advantages of being capable of moistening the skin of the buttocks of the infant for a long time, effectively protecting the health of a sebum film of the buttocks of the infant, meanwhile, the diaper has the advantages of being high in urine absorption rate, large in absorption amount, breathable and soft.

The invention relates to tablet candy for deep sleep and a preparation method of the tablet candy. The tablet candy is prepared from jujube kernel concentrate powder, royal jelly freeze-dried powder,jujube concentrate powder, gamma-aminobutyric acid, ginseng stem and leaf saponins powder and auxiliary materials. The tablet candy adjusts the human body system through the synergistic effect of thevarious raw materials, which is beneficial to the metabolism of cardiovascular and cerebral vessels, and the adequate supply of needed nutrients is mainly through the interaction of the royal jelly freeze-dried powder and the gamma-aminobutyric acid; the royal jelly freeze-dried powder can promote the production of sex hormones and promote the human brain to enter deep sleep in a short time, othertissues like physiological functions of various organs of the body can also be adjusted comprehensively, the level of the sex hormones during the physiological period of the sex hormone decline can be stabilized for short-time consumption, and the abnormal phenomenon of climacteric is reduced.

The invention relates to a preparation method of a polydimethylsiloxane porous adsorption material. The method comprises the steps that organo-siloxane is used as a preformed polymer, and a curing agent, a thinning agent, a pore-forming agent and a foaming agent are added; the porous adsorption material is prepared from, by weight, 10-20% of the siloxane preformed polymer, 1-5% of the curing agent, 10-30% of the thinning agent, 10-30% of the pore-forming agent and 30-50% of the foaming agent, uniform stirring is performed, the mixture is dropped into a foaming solution drop by drop, and the porous adsorption material is obtained through specific treatment. The obtained porous material can adsorb various oils and organic solvents such as petroleum ether, carbon tetrachloride, tetrahydrofuran, trichloromethane, normal octane, cyclohexane, normal octane, kerosene and ethyl acetate. The experimental method is novel, simple and easy to implement and low in cost, the material can be recycled, the material is environmentally friendly, and therefore the porous material has the excellent application prospect.