30results about How to "Improve extraction efficiency" patented technology

The invention relates to a method for extracting and separating difluoroethanol and water by utilizing porous liquid. According to the method, the porous liquid is synthesized by utilizing ZIF-8 and hydrophobic ionic liquid and is used as the extracting agent to extract and separate a mixture of difluoroethanol and water. The method comprises the following steps: firstly, stirring mixed porous liquid, difluoroethanol and water, and conducting standing to obtain two layered phases; separating out an upper-layer raffinate phase and a lower-layer extraction phase in a liquid separation manner; then carrying out back extraction on the lower-layer extraction phase by using ethyl acetate, and carrying out rectification treatment on a back-extracted phase obtained after back-extraction to obtain difluoroethanol; and carrying out cyclic extraction on the upper-layer raffinate phase by using the regenerated porous liquid. The porous liquid used in the method has the same characteristics as a porous material and an ionic liquid, and is high in separation efficiency, high in cyclic extraction capacity, friendly to environment and capable of being repeatedly used.

The invention discloses a method and device of custom rule text information extraction result screening. The method comprises the steps of obtaining text information to be extracted and a preset modeltree, wherein the model tree comprises at least multiple nodes and an extraction expression set corresponding to each node; calling operation that a user selects the nodes, utilizing the extraction expression sets corresponding to the selected nodes in the model tree to extract the text information to be extracted, and obtaining an extraction result; obtaining a preset node path corresponding tothe model tree; utilizing a terminal node of the preset node path, and according to a preset screening rule, screening the extraction result to obtain a screening result, wherein the preset screeningrule comprises a full node screening rule, a child node screening rule and a current node screening rule. According to the method and device of custom rule text information extraction result screening, the terminal node of the preset node path is utilized, according to the screening rule selected by the user, the extraction result is extracted again, finally an extraction result required by the user is obtained, the extraction result is precisely obtained, and the extraction efficiency is improved.

The invention relates to the field of miniature extraction devices, in particular to a miniature extraction device based on a hollow foam material and application thereof. A main function component ofthe miniature extraction device is composed of the hollow foam material formed by macroscopically three-dimensionally communicated frames; the network frames are three-dimensionally communicated hollow microchannels; the walls of the microchannels include nano to micro sized pores. The hollow foam miniature extraction device with three-dimensionally communicated network is prepared via the structural design of the miniature extraction device. The hollow foam miniature extraction device has the advantages that the walls of the three-dimensionally communicated hollow microchannels include richpores inside, chances for an extracting agent to contact a solution to be extracted during extraction can be increased, the miniature extraction device is suitable for modular assembly, has good convenience of automatic running and has a clean and efficient extraction process.

The embodiment of the invention provides a solvent extraction method and a solvent extraction device, and relates to the field of mass transfer separation. The method comprises the following steps: discharging a mixed liquid phase formed by mixing a mixed solution and an extraction agent from a mixing container, and introducing the mixed liquid phase into a clarification container to carry out two-phase separation. The device comprises the mixing container and a clarification container, wherein the mixing container is provided with a mixed liquid inlet, an extracting agent inlet and a mixed liquid phase outlet; the clarification container is provided with a light phase outlet, a heavy phase outlet and a mixed liquid phase inlet; and the mixed liquid phase outlet is communicated with the mixed liquid phase inlet. According to the method and device, the mixing mass transfer process and the clarification process are conducted in the two independent tank bodies of the mixing container andthe clarification container respectively and do not interfere with each other, back mixing can be reduced, the extraction efficiency can be improved, and the treatment amount can be increased.

The invention relates to a continuous extraction separator, which comprises a spray assembly, an extraction and diversion assembly, a cylinder assembly and an extractant distribution assembly, wherein the spray assembly comprises a spray head and a seal head; a flange I is arranged at the bottom of the seal head; the extraction and diversion assembly comprises a guide sleeve I and a guide sleeve II; a flange II is arranged at the top end of the guide sleeve I; the flange II is connected with the flange I; a flange III is arranged at the middle part of the guide sleeve I; the cylinder assembly comprises a cylinder I and a cylinder II; a flange IV is arranged at the top end of the cylinder I; the flange IV is connected with the flange III; a connection pipe III and a connection pipe I are arranged at the left side and the right side of the cylinder I separately; a connection pipe IV and a connection pipe II are arranged at the left side and the right side of the bottom of the cylinder II; a liquid level meter is arranged on the front side of the cylinder II; the extractant distribution assembly extends into the cylinder assembly; a plurality of through holes are distributed in two sides of the extractant distribution assembly; and a flange V is arranged at an open end. According to the continuous extraction separator, the dissolving distribution ratio of acetonitrile or ethyl alcohol in methylbenzene is improved, the floor area is small, the operation cost is low and the extraction efficiency is high.

The invention relates to a method for extracting waxberry polyphenol from waxberry fruit residues. The method comprises the following steps: 1, drying the waxberry fruit residues, crushing the dried residues, and sieving the crushed residues by a 60 mesh sieve; 2, adding an ethanol solution with the volume ratio of 50%, carrying out microwave extraction, and filtering the obtained solution to obtain a filtrate 1 and filter residues for later use; 3, adding hot water, cellulase and pectase to the filter residues obtained in step 2, carrying out enzymatic hydrolysis, carrying out enzyme inactivating treatment, and filtering the obtained solution to obtain a filtrate 2 and filter residues for later use; 4, adding hot water to the filter residues obtained in step 3, extracting, and filtering the obtained solution to obtain a filtrate 3; 5, mixing the filtrate 1, the filtrate 2 and the filtrate 3, centrifuging the obtained filtrate mixture, carrying out pumping filtration, and purifying the filtered mixture; and 6, concentrating the purified mixture, and drying the concentrated mixture. The method for extracting waxberry polyphenol from waxberry fruit residues allows waxberry polyphenols to be extracted from the waxberry fruit residues through comprehensive utilization of a composite enzymatic hydrolysis technology and a solvent extraction technology and assisted utilization of a microwave technology, so the extraction efficiency is high, and the comprehensive utilization rate of waxberry is improved.

The invention discloses an extraction method of pummelo peel volatile oil, wherein the pummelo peel volatile oil is extracted from outer peel of pummelo peel fruits, and has the effects of remarkably inhibiting growth of momordica grosvenori spot blight pathogenic bacteria hyphae and inhibiting germination of fructus evodiae rust uredospores. The invention provides application of pummelo peel volatile oil in preparation of a product for preventing and treating momordica grosvenori spot blight and application of pummelo peel volatile oil in preparation of a product for preventing and treating fructus evodiae rust. The pummelo peel volatile oil disclosed by the invention has a huge potential of being developed into a green disease prevention and treatment medicament.

The invention relates to an image rapid edge extraction algorithm used in a DSP (Digital Signal Processor) system. By utilizing a method for overlaying and comparing adjacent segments, two end points of the segment and two end points of the adjacent segment are subjected to comparison and calculation, and the target attribute marking can be rapidly carried out; meanwhile, a data set of a target edge point is obtained. Due to adoption of the method, image data is read continuously, the reading efficiency of a memory is greatly improved and the whole algorithm efficiency is effectively improved. The method can be used in an image analyzing system based on DSP and can greatly improve the image target marking and target edge extracting efficiency, and the video image analysis efficiency of 2 million pixels every second reaches 10 frames to 15 frames.

The invention provides a construction method of a fingerprint spectrum of syzygium aromaticum and kaki calyx powder as well as a standard fingerprint spectrum and application thereof, and belongs to the technical field of drug detection.The construction method comprises the steps that a test solution and a reference solution are prepared firstly, then acetonitrile (A)-0.02 wt% phosphoric acid aqueous solution (B) is used as a mobile phase, and the standard fingerprint spectrum of the syzygium aromaticum and kaki calyx powder is constructed. Respectively carrying out high performance liquid chromatography detection on the test solution and the reference substance solution to obtain a fingerprint spectrum of the clove and persimmon calyx powder; the standard fingerprint spectrum of the clove and kaki calyx powder is obtained by using the construction method and is used for quality evaluation or control in the whole process of research/development/production/clinical application of the clove and kaki calyx powder. According to the construction method of the fingerprint spectrum of the clove and kaki calyx powder, all medicinal material components in the whole formula of the clove and kaki calyx powder can be detected together; the provided standard fingerprint spectrum can provide a scientific basis for comprehensively establishing a quality control standard of the clove and kaki calyx powder.

The invention discloses a method for extracting and separating lignin from an alkali pulping black liquor. The method comprises the following steps: (1) preparing an anion polyacrylamide solution; (2)preparing a poly-aluminum chloride solution; (3) enabling the black liquor obtained by pulping to enter a black liquor precipitation tank through a heat pump; (4) adding hydrochloric acid in the black liquor to further reduce system acidity so as to obtain a treatment liquid; (5) mixing the treatment liquid, the prepared anion polyacrylamide solution and the poly-aluminum chloride solution and pumping the same into the precipitation tank through the pump; (6) standing and precipitating the treated black liquor in the precipitation tank, filtering, separating and extracting the lignin. The method for extracting and separating the lignin from the alkali pulping black liquor, disclosed by the invention, has the benefits that the yield of the lignin is 88% or above, and the lignin in the alkali pulping black liquor can be fully recovered; not only is the recycling of the lignin in the alkali pulping black liquor improved, but also the content of pollutants in the treatment liquid is significantly reduced.

The invention belongs to the field of remote sensing information service, and provides a remote sensing image information label intelligent extraction method. An artificial intelligence method is adopted to complete remote sensing image understanding, label extraction is carried out on remote sensing images from multiple angles such as ground feature classification, target detection and space retrieval, accurate description of the content and application level of the remote sensing images is achieved, and basic data support is provided for assisting a user in rapidly obtaining interested remote sensing image information. The invention provides a multi-scale weight (MWSNet) segmentation model suitable for image surface feature classification and a CormNet model suitable for image target detection, which are used for quickly extracting surface feature information and target information of remote sensing images, quickly extracting typical landmark information based on space retrieval, constructing a multi-level label system of surface features, targets, landmarks and the like for remote sensing image data, on the basis of basic attributes of the remote sensing image, semantic features of the remote sensing image are enriched, accurate description of content and application of the remote sensing image is realized, and basic data support is provided for intelligent service of remote sensing data.

A reflective fluorescent glass light conversion component, including three layers of materials: a glass substrate, a reflector glass coating and a fluorescent glass coating; the reflector glass coating is the powder of glass B with a mass ratio of 150:1 to 100:150 Composition with reflector C, fluorescent glass coating The glass coating containing phosphor D is sintered on the glass substrate, and the thickness of the reflector glass coating and the fluorescent glass coating is 0.3-3mm respectively. The reflector C is an insulator with a large optical gap, and its corresponding optical absorption wavelength is below 420 nanometers; the color of the external light of the reflector C is white. The preparation steps are as follows: firstly, a reflective coating is prepared by mixing wide-bandgap reflector powder and low-melting glass powder on the glass substrate, and then a layer of fluorescent glass coating is prepared on the glass substrate, and then the reflective coating and the The fluorescent glass coating is integrated into the glass substrate.

The invention discloses a method for preparing depression-relieving and soothing tablets. The method includes a first step, preparing raw materials; a second step, extracting alcohol; a third step, collecting extracts; a fourth step, preparing extract powder; a fifth step, granulating the extract powder; a sixth step, compressing tablets. The method has the advantages that anti-depression effects can be realized by water-soluble components and fat-soluble components in herbal medicine in prescription; the ethyl alcohol with certain concentration is used as an extract solvent, accordingly, the water-soluble components and the fat-soluble components with the anti-depression effects in the prescription can be comprehensively extracted, and the method can be used for producing the depression-relieving and soothing tablets on a large scale during industrial mass production.

The invention relates to a preparation method of a spleen-strengthening, dampness-dissipating pouch-dispelling functional tea beverage. Raw materials of the tea beverage comprise, by weight, 5-8% of hyacinth bean flower extract liquid, 5-8% of cane sugar, 0.05-0.1% of potassium sorbate, 0.45-1% of citric acid and 82.9-89.5% of purified water. Surface cleaning is carried out to hyacinth bean flowers, the technologies of microwave extraction, membrane separation, flash pasteurization and the like are adopted, flavor, nutrition and efficacy constituents of the hyacinth bean flowers are protectedto the most extent, improvement of extraction efficiency enables effective constituents of the traditional Chinese medicine hyacinth bean flowers to be effectively protected, and products are favorable for storage and achievement of industrialized production simultaneously.

The invention relates to a preparation method of canna edulis ker polysaccharide polyphenol complex, comprising the following steps: the waste residue of canna edulis ker is prepared, water is added and mixed with the waste residue of canna edulis ker to obtain solution; the pH value of the solution is adjusted to 7.5-8.5; thermo-stabilization alpha-amylase is added to ensure that the mass fraction of the amylase is 0.05-0.1%, and enzymolysis is carried out at the temperature of 95-100 DEG C for 30-60 minutes; when solution obtained in the second step is cooled to the temperature of 50-60 DEG C, alkalescent papain is added, the mass fraction of the alkalescent papain is 0.1-0.2%, and enzymolysis is carried out for 30-60 minutes; then, lipase is added, and the mass fraction of the lipase reaches 0.1-0.2%, and enzymolysis is carried out for 30-60 minutes; the pH value of the solution is adjusted to 9-11, and hydrogen peroxide with the volume ratio being 4-7% is added to stir for 30-60 minutes at the temperature of 20-30 DEG C; filter residue is obtained after filtration, is washed to be neutral, is dried and is pulverized to obtain the canna edulis ker polysaccharide polyphenol complex. The invention has large raw material output, low price, simple technology and lower cost, recycles waste residues and reduces environment pollution.

The invention discloses a device and a method for extracting vanadium pentoxide from vanadium-containing molten iron, and relates to a preparation device. The device comprises an extraction cavity, wherein a rotating plate is arranged in the extraction cavity and divides the interior of the extraction cavity into an upper cavity and a lower cavity; a moving plate and an adjusting rod are arranged in the lower cavity; the adjusting rod can drive the moving plate and the rotating plate to jointly rotate by taking a straight line where the adjusting rod is located as the axis; the adjusting rod can enable the upper cavity and the lower cavity to be in a communicating state or a separating state; and a rotating mechanism is arranged on a side of the upper cavity, a first channel used for introducing oxygen and a second channel used for introducing nitrogen are arranged on the rotating mechanism, and the adjusting rod can enable the rotating mechanism to rotate through the moving plate and the rotating plate. The device can effectively separate vanadium slag and semisteel, and can improve the use efficiency.

The invention relates to a Fe3O4/C magnetic nano solid extracting agent coated with a novel carbon material, belonging to the field of chemical analysis and test instruments and equipment. The extracting agent simultaneously has large special surface area of nano material, short disperse path, magnetic separation capacity of magnetic material and strong adsorption capacity of carbon material, thereby being very suitable for pretreating large-scale and large-size water samples in batch. In addition, the solid extracting agent is simple to prepare, low in raw material cost, rapid and convenientto extract and friendly to the environment and only needs using a small amount of organic solvent in the whole process.