31 results about "Solution G" patented technology

The invention relates to a nutrient solution for improving an emergence rate and a growth amount of a plant growing in the mining wasteland and a preparation method thereof. The nutrient solution provided by the invention is characterized in that each 1L of water contains potassium nitrate, calcium chloride, magnesium sulfate, ammonium nitrate, potassium dihydrogen phosphate, disodium ethylene diamine tetraacetate, ferrous sulfate heptahydrate, boric acid, manganese sulfate, zinc sulfate, sodium molybdate, copper sulfate, potassium permanganate, gibberellin and rooting powder ABT6. The preparation method of the nutrient solution comprises the following steps of respectively preparing a solution A, a solution B, a solution C, a solution D, a solution E, a solution F, a solution G and a solution H, mixing the solution A, the solution B, the solution C, the solution D, the solution E, the solution F, the solution G and the solution H, adding water into the mixed solution until the mixed solution has a volume of 1000ml, adjusting a pH value of the mixed solution having a volume of 1000ml to a pH value of 5.5 to 6.5, and fully stirring to obtain the nutrient solution which is uniform. The nutrient solution provided by the invention can promote plant root growth, reduce disease incidence in a seedling stage, accelerate plant growth, improve growth quality, accelerate a recovery rate of vegetation of the mining wasteland, realize saving-type production and reduce a cost.

The invention discloses a preparation method of gasified water-coal slurry additive, which belongs to the technical field of the preparation of water-coal slurry additives. The method comprises the following steps: enabling papermaking waste solution to react with a sufficient amount of thick sulfuric acid for 10 to 16 hours, obtaining a reaction solution A, enabling the reaction solution A to react with a sufficient amount of lime milk, settling, obtaining supernatant B, pressing filtering the supernatant B, obtaining filtrate C; performing the sulfonation reaction for wash oil and sufficientthick sulfuric acid at 70 to 120 DEG C for 8 to 12 hours, obtaining a reaction solution D, performing the hydrolytic reaction for the reaction solution D and sufficient deionized water, obtaining hydrolyte E, performing the polycondensation for the hydrolyte E and sufficient formaldehyde at 90 to 110 DEG C for 8 to 12 hours, obtaining a condensation compound F, stirring and mixing the condensation compound F and the filtrate C to react, obtaining a reaction solution G, enabling the reaction solution G to have neutralization reaction with a sodium hydroxide solution, and obtaining the gasifiedwater-coal slurry additive, wherein the mass ratio of the papermaking waste solution and the wash oil is 1: 9 to 9: 1. The preparation method adopts the papermaking waste solution as a raw material which is cheap and easy to obtain, and the prepared gasified water-coal slurry additive has good effect for improving the prepared slurry.

The invention relates to the field of conductive composite materials and discloses a method for preparing a field reversible nonlinear conductive composite material, the material prepared by the method and application of the material. The method includes weighing AgNWs, adding the AgNWs into absolute alcohol, adding TGA, stirring the mixture, then adding TBT, fully mixing the mixture, then heatingthe mixture to 180-210 DEG C, reacting the mixture for 9-11 h, performing centrifugation to obtain precipitate, and washing the precipitate to obtain AgNWs@TiO2; weighing PVA and water, stirring themixture, heating the mixture to 85-95 DEG C and stirring the mixture until the PVA is dissolved to obtain a solution G; weighting the AgNWs@TiO2, adding the AgNWs@TiO2 into the solution G, stirring the solution at 60-70 DEG C for 10-15 h to obtain a composite material fluid, and performing casting to form film, then the field reversible nonlinear conductive composite material can be obtained afterthe solvent is volatilized. The mass ratio of the AgNWs, the TGA and the TBT is 100:210-220:20; the degree of polymerization of the PVA is 1750 + / - 50, and the alcoholysis degree is 99%; and the massratio of the PVA to the AgNWs@TiO2 is 60:30-50. The method has characteristics including a simple process, a low cost, short reaction time and easy preparation in a large scale. The prepared composite material is uniform in distribution, good in dispersibility and free of agglomeration, and can be applied in overvoltage protection, lightning stroke surge and self-adaption electromagnetic pulse protection fields.

The invention discloses a preparation method of bamboo salt toilet soap, relating to the technical field of chemical engineering. The preparation method comprises the following steps: adding 5-10 parts of water into 4-6 parts of bamboo salt, stirring for 10-20 minutes, and heating to obtain solution F; mixing 4-8 parts of glycerol, 8-10 parts of sorbitol, 5-20 parts of lauric acid, 1-10 parts of myristic acid, 1-10 parts of palmitic acid, 5-12 parts of stearic acid and 8-10 parts of ethanol, and melting by heating to obtain a solution G; heating 3-5 parts of sodium hydroxide and 3-5 parts of potassium hydroxide to 65-80 DEG C, mixing with the solution G, controlling the pH value at 6.8-7.5, heating to 80-85 DEG C, adding the solution F, stirring, adding 5-8 parts of licorice water extract, keeping the temperature, cooling, adding 0.1-0.2 part of essence, stirring uniformly, pouring into a mold, and forming. The bamboo salt toilet soap can effectively resist bacteria, is fresh and clean, is natural and not irritant for skin, and can keep the skin healthy, moist and delicate.

This invention relates to a process of preparing highly pure, non-yellowing (meth)acrylic acid necessary for high-tech applications requiring long-term color stability in the presence of amines. Process for the preparation of highly pure, non-yellowing (meth)acrylic acid comprising the steps: f) condensation of a (meth)acrylic acid- containing gas phase obtained via a gas phase oxidation process of a C4-compound to generate an aqueous (meth)acrylic acid solution g) separation of the (meth)acrylic acid from the aqueous (meth)acrylic acid solution to obtain crude (meth)acrylic acid h) rectification of the crude (meth)acrylic acid to obtain pure (meth)acrylic acid via a sidestream outlet of the rectification column i) treatment of the pure (meth)acrylic acid generated in step c) with an ion exchange resin j) distillation of the (meth)acrylic acid generated in step d).

The invention relates to a method for texturing the surface of a monocrystalline silicon solar battery, which comprises the following steps of: (1) preparing, in an ultrasonic tank, a mixed solution consisting of detergent with the concentration of 0.005% to 0.015% and sodium hydroxide with the concentration of 0.015% to 0.2%, heating the mixed solution to the constant temperature of 80 to 90 DEGC, and ultrasonically cleaning a monocrystalline silicon wafer within the constant temperature interval for 1-5min; (2) after the monocrystalline silicon wafer is cleaned, uniformly spraying a solution G on the surface of the monocrystalline silicon wafer, wherein the solution G contains 1% to 5% of sodium salt, 0.01% to 0.05% of carbamide and 0.0015% to 0.01% of lactic acid in percentage by mass; (3) preparing alkaline corrosive liquid in the constant temperature ultrasonic tank, and putting the monocrystalline silicon wafer in the alkaline corrosive liquid for being corroded, wherein the scope of reaction temperature is from 70 to 85 DEG C and the corrosion time is from 10 to 25 minutes; and (4) flushing the monocrystalline silicon wafer after corrosion reaction, and drying the monocrystalline silicon wafer by drying to complete the texturing on the surface of the monocrystalline silicon wafer. The method of the invention has low cost, is beneficial to absorption of solar energy, and can be widely applied to the filed of solar batteries.

The invention discloses a preparation method of bicuculline and fumarine. The preparation method comprises the following steps: 1) extracting: pulverizing a medicinal material, extracting with an acidmethanol or ethyl alcohol solution to obtain an extracting solution A, and conducting vacuum concentration to obtain a concentrated solution B; 2) separating and enriching: taking the concentrated solution B, regulating the PH, adsorbing through an inverse polymerization filler C, eluting with water firstly to obtain a washing solution D, then desorbing with an alcoholic solution E, collecting adesorbed solution F, and desorbing with an alcoholic solution G to obtain a desorbed solution H; 3) purifying: taking the desorbed solution H, conducting vacuum concentration to regulate the PH, standing, filtering a precipitate, stirring and mixing the precipitate, obtaining a solution J through silica gel chromatograph; conducting vacuum concentration on the desorbed solution F, regulating the PH to 9-10, and separating out a precipitate K; and regulating the PH of the washing solution D to 9-10, and separating out a precipitate L; and 4) crystalizing and drying: conducting vacuum concentration on the solution J, crystalizing and drying the solution J to obtain a pure product of bicuculline; and crystalizing and drying the precipitate K and the precipitate L to obtain a pure product of fumarine. By using the method, the yield is high, the purity is high, and the method can be applied to industrial production.

Provided is a method for extracting and refining alkaloids from ipecac, comprising: (1) grinding ipecac, adding acidic methanol / ethanol solution for extraction, obtaining an extraction solution A, concentrating under a reduced pressure, and obtaining a concentrated solution B; (2) using reversed-phase polymer filler J for adsorption, and performing desorption by washing with water, collecting a washing solution C, eluting with an alcoholic solution E and collecting a desorption solution D; (3) injecting the washing solution C and the desorption solution D into a preparative high performance liquid chromatograph for separation and purification respectively, to collect a solution G, and a solution H and a solution I respectively; and (4) concentrating the solutions G, H and I, which are then subjected to reversed-phase polymer filler K for adsorption respectively; eluting them respectively after adsorption with an alcoholic solution F; concentrating obtained eluates to dryness; and then performing vacuum drying.

The invention discloses a preparation method of lithium titanate and polyaniline composite with good rate capability, comprising: dropping lithium-containing solution into tetrabutyl titanate solution to produce emulsion A; reacting the emulsion A in a dryer until the emulsion turns into solid product B; grinding the solid product B, and thermally treating to obtain lithium titanate C; ultrasonically dispersing the lithium titanate and distilled water to obtain lithium titanate solution, adding a certain amount of surfactant to obtain solution D; dropping polyaniline into the solution D to obtain mixed solution E; stirring the mixed solution E in cold water bath, and dropwise adding hydrochloric solution to obtain mixed solution F; dropwise adding a catalyst and oxidant mixed solution into the solution F to obtain solution G; magnetically stirring the solution G for a certain time, adding a reaction terminator into the G solution, and stirring to obtain suspension H; centrifuging the suspension H to obtain final precipitate, and vacuum drying the precipitate to obtain the lithium titanate and polyaniline composite.

The invention discloses a method for establishing a controllable conductive hydrogel ultrathin membrane by using layered assembly and an electrochemical technology. The method comprises the following steps of alternately performing layer-by-layer self-assembly on a conductive substrate in polycation and polyanion electrolyte solution to obtain a conductive substrate with a hydrogel ultrathin membrane; mixing pyrrole, sodium p-tolue and solvent E to obtain solvent G, placing the conductive substrate with the hydrogel ultrathin membrane in the solvent G, and soaking the conductive substrate until the concentrations of the pyrrole and the sodium p-tolue on the inside and the outside of the hydrogel ultrathin membrane are balanced; and performing electrical oxidation polymerization on the pyrrole in the environment of the solution G by using a chronopotentiometry after soaking to obtain the conductive hydrogel ultrathin membrane. The invention also discloses a conductive hydrogel ultrathin membrane prepared by the method for establishing the controllable conductive hydrogel ultrathin membrane by using the layered assembly and the electrochemical technology. The layered assembly and the electrochemical technology used together, and the electrical performance of the conductive hydrogel ultrathin membrane can be accurately regulated and controlled by changing the time of electrochemical reaction.

The invention discloses a method for detecting nano-silver particles based on the fluorescence method of G tetramer. First, hydrogen peroxide is used to convert silver nanoparticles into monovalent silver ions in an acidic environment to obtain a sample solution to be detected; A variety of silver ion solutions are used as standard solutions to draw a standard curve; G-DNA is configured and mixed with equal volumes of sample solutions and standard solutions to make them fully interact; then potassium ions are added to make G-DNA fold into G tetramer structure; finally add N-methylporphyrin dipropionic acid IX (NMM), and measure the content of nano-silver in the sample solution by fluorescence method. The invention adopts the fluorescence method to quantitatively detect the nano-silver, which has the advantages of high sensitivity, simple operation and short time; the medium used in the detection is G-DNA, which has the characteristics of simple synthesis, low cost, good chemical stability and the like.

The invention provides a preparation method of a visible light absorption type upper conversion luminescent material, which comprises the following steps: mixing N-butyl titanate and absolute ethyl alcohol or normal butanol for obtaining a solution A; continuously stirring the solution for 30 minutes; slowly dripping glacial acetic acid or ethanol or ethanol acetic acid or propanol acetic acid inthe solution A; stirring the mixture at the room temperature to obtain a solution B; adding a proper amount of diethanolameine to be used as catalysts; stirring the materials for a period; dissolvingone or two kinds of materials of yttrium oxide and rare earth compounds in nitric acid to obtain turbid liquid; stirring the turbid liquid to obtain a transparent clarified solution C; placing the transparent clarified solution C at the room temperature to be cooled; slowly dripping the solution C into the solution B which is stirred at a high speed to obtain a mixed solution G; continuously stirring the solution G for two hours; pouring the solution G into a culture dish for stilling standing and ageing for obtaining stable, uniform and transparent rose pink sol; and obtaining the upper conversion luminescent material through drying, grinding and calcining the sol.

The invention relates to a preparation method of a monoclinic phase ditetrahedron bismuth vanadate crystal. The method comprises steps of: dissolving Bi (NO3) 3.5H2O in a HNO3 solution, adding 1.3-1.4g of NaOH to obtain a mixed solution A, mixing a certain amount of n-caprylic acid and toluene to obtain a mixed solution B, mixing the solution A and the solution B, stirring, standing, and taking an upper layer solution C; dissolving NaVO3 in HNO3 solution with a certain pH value to obtain a solution D, mixing a certain amount of tri-n-octylamine and toluene to obtain a mixed solution E, mixing the solution D with the solution E, stirring, standing, and taking an upper layer solution F; then mixing the solution C and the solution F, adding 2-4 mL of oil amine, stirring evenly to obtain a solution G, adding the solution G in a teflon container, reacting for 16-20 h at high temperature, cooling, centrifuging and cleaning to obtain a sample; and finally, drying the sample in a vacuum drying box to obtain the monoclinic phase ditetrahedron bismuth vanadate crystal. The method provided by the invention can prepare monoclinic phase ditetrahedron bismuth vanadate crystal with good dispersion, uniform morphology and small particle size, and has a simple preparation process and a short cycle.